143h and 163h moto niveladora

143H and 163H

MOTOR GRADERSMaintenance Intervals

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84 SEBU7473-02Maintenance SectionMaintenance Interval Schedule

i02703159

Maintenance Interval Schedule

SMCS Code: 1000; 7000

Ensure that all safety information, warnings, andinstructions are read and understood before anyoperation or any maintenance procedures areperformed.

The user is responsible for the performance ofmaintenance, including all adjustments, the use ofproper lubricants, uids, lters, and the replacementof components due to normal wear and aging. Failureto adhere to proper maintenance intervals andprocedures may result in diminished performance ofthe product and/or accelerated wear of components.

Use mileage, fuel consumption, service hours, orcalendar time, WHICH EVER OCCURS FIRST,in order to determine the maintenance intervals.Products that operate in severe operating conditionsmay require more frequent maintenance.

Note: Before each consecutive interval is performed,all maintenance from the previous interval must beperformed.

When Required

All Wheel Drive Accumulator - Check ................... 87All Wheel Drive Motor Supply Hose -Inspect/Replace .................................................. 87Battery - Recycle .................................................. 89Belt - Replace ....................................................... 91Blade Lift Cylinder Socket - Check/Adjust/Replace ............................................................... 91Centershift Cylinder Socket - Check/Adjust/Replace ............................................................... 94Circle Clearances - Check/Adjust ......................... 95Circle Drive Oil Level - Check ............................... 99Circuit Breakers - Reset ...................................... 100Cutting Edges and End Bits - Inspect/Replace ... 107Drawbar Ball and Socket End Play -Check/Adjust ..................................................... 108Engine Air Filter Primary Element - Clean/Replace ............................................................. 109Engine Air Filter Secondary Element - Replace .. 111Engine Air Filter Service Indicator Screen -Check/Replace ................................................... 112Engine Crankcase Breather - Replace ................ 113Engine Overheating ............................................. 117Engine Power Loss .............................................. 117Ether Starting Aid Cylinder - Replace .................. 118Evaporator Coil and Heater Coil - Clean ............. 119Fuel System - Fill ................................................ 120Fuses - Replace .................................................. 125Moldboard Wear Strip - Inspect/Adjust/Replace .. 131Oil Filter - Inspect ................................................ 131Radiator - Clean .................................................. 133Radiator Core - Clean ......................................... 133

Ripper Tip - Inspect/Replace .............................. 134Scarier Teeth - Inspect/Replace ........................ 135Steering Accumulator - Check ............................ 137Window Washer Reservoir - Fill .......................... 143Window Wiper - Inspect/Replace ........................ 143Windows - Clean ................................................. 144

Every 10 Service Hours or Daily

Air Tank Moisture and Sediment - Drain ............... 87Backup Alarm - Test .............................................. 89Brakes, Indicators and Gauges - Test ................... 92Circle Drive Pinion Teeth - Lubricate .................... 99Circle Top - Lubricate ............................................ 99Cooling System Coolant Level - Check .............. 104Engine Air Filter Service Indicator - Inspect ......... 111Engine Air Precleaner - Clean ............................. 113Engine Oil Level - Check ..................................... 113Fuel System Water Separator - Drain ................. 123Seat Belt - Inspect .............................................. 136Transmission and Differential Oil Level - Check .. 141

Initial 100 Service Hours

Transmission and Differential Oil Filter and Screens -Replace/Clean .................................................. 140

Every 100 Service Hours or 2 Weeks

Articulation Bearings - Lubricate ........................... 89Axle Oscillation Bearings - Lubricate .................... 89Belt - Inspect ......................................................... 90Blade Lift Cylinder Socket - Lubricate ................... 92Cab Air Filter - Clean/Replace .............................. 93Centershift Cylinder Socket - Lubricate ................ 94Centershift Lock Bar - Clean/Lubricate ................. 95Drawbar Ball and Socket - Lubricate .................. 107Fuel Tank Water and Sediment - Drain ............... 124Hydraulic System Oil Level - Check ................... 129Kingpin Bearings - Lubricate ............................... 130Ripper Cylinder Bearings - Lubricate .................. 134Scarier Lift Link Socket - Lubricate ................... 135Tandem Drive Oil Level - Check ......................... 138Tire Ination - Check ........................................... 139Wheel Lean Bar Bearings - Lubricate ................. 142Wheel Lean Bearings - Lubricate ....................... 142Wheel Lean Cylinder Bearings - Lubricate ......... 143

Initial 500 Service Hours (or at rst oilchange)

Electronic Unit Injector - Inspect/Adjust .............. 108Engine Valve Lash - Check .................................. 118

Initial 500 Hours (for New Systems, RelledSystems, and Converted Systems)

Cooling System Coolant Sample (Level 2) -Obtain ............................................................... 101

SEBU7473-02 85Maintenance Section

Maintenance Interval Schedule

Every 500 Service Hours or 3 Months

Air Dryer - Check .................................................. 86All Wheel Drive Oil Filter - Replace ...................... 88Braking System - Test ........................................... 93Cooling System Coolant Sample (Level 1) -Obtain ............................................................... 101Engine Air Filter Service Indicator -Inspect/Replace ................................................. 112Engine Oil Sample - Obtain ................................. 114Engine Oil and Filter - Change ............................ 114Fuel System - Prime ........................................... 121Fuel System Secondary Filter - Replace ............ 122Fuel System Water Separator Element -Replace ............................................................. 123Fuel Tank Cap and Strainer - Clean ................... 124Hydraulic System Oil Filter - Replace ................. 128Hydraulic System Oil Sample - Obtain ............... 130Parking Brake - Drain ......................................... 132Tandem Breather - Clean/Replace ..................... 137Tandem Drive Oil Sample - Obtain ..................... 138Transmission and Differential Oil Filter and Screens -Replace/Clean .................................................. 140Transmission and Differential Oil Sample -Obtain ............................................................... 142

Every 1000 Service Hours or 6 Months

Blade Cushion Accumulator - Check .................... 91Rollover Protective Structure (ROPS) - Inspect .. 135Transmission and Differential Oil - Change ........ 139

Every 2000 Service Hours or 2 Years

Air Dryer Desiccant - Replace .............................. 86Battery or Battery Cable - Inspect/Replace .......... 90Circle Drive Oil - Change ...................................... 98Condenser (Refrigerant) - Clean ........................ 100Cooling System Pressure Cap - Clean/Replace .. 105Crankshaft Vibration Damper - Inspect ............... 106Electronic Unit Injector - Inspect/Adjust .............. 108Engine Valve Lash - Check .................................. 118Engine Valve Rotators - Inspect .......................... 118Evaporator Coil and Heater Coil - Clean ............. 119Final Drive Preload - Check ................................. 119Refrigerant Dryer - Replace ................................ 133Tandem Drive Oil - Change ................................ 137

Every Year

Cooling System Coolant Sample (Level 2) -Obtain ............................................................... 101

Every 3 Years After Date of Installation orEvery 5 Years After Date of Manufacture

Seat Belt - Replace ............................................. 136


Cooling System Water Temperature Regulator -Replace ............................................................. 105

Every 4000 Service Hours

Hydraulic System Oil - Change ........................... 127


Cooling System Coolant Extender (ELC) - Add .. 103

Every 12 000 Service Hours or 6 Years

Cooling System Coolant (ELC) - Change ........... 102

86 SEBU7473-02Maintenance SectionAir Dryer - Check

i01862160

Air Dryer - Check

SMCS Code: 4285-535

The air lines to and from the air dryer must be atatmospheric pressure. If the air lines are not at at-mospheric pressure, personal injury could result.Release the air pressure from the air system com-pletely before performing maintenance.

Refer to the Operation and Maintenance Manual,Access Doors and Covers for the location of theservice points.

The air dryer is positioned on the left side at the rearof the machine.

1. Open the access door in order to service the airdryer.

g00949269Illustration 81

2. Turn drain valve (1) to the 3:00 position in orderto drain one air tank. Turn drain valve (1) to the9:00 position in order to drain the other air tank.The air tanks are positioned in the service centerat the rear of the machine.

3. Check for moisture in the air tanks. Close the drainvalve for the air tanks.

4. If moisture is present in the air tanks, replace thedesiccant cartridge for air dryer (2). Consult yourCaterpillar dealer for information about replacingthe desiccant cartridge.

5. Close the access door.

Note: Small amounts of moisture may be in thesystem due to condensation in the system. Moisturemay also be in the system if an air dryer is installedon a machine that has been operating without an airdryer. Several weeks may be required in order tocompletely dry the system.

i01862178

Air Dryer Desiccant - Replace

SMCS Code: 4285-510

The air lines to and from the air dryer must be atatmospheric pressure. If the air lines are not at at-mospheric pressure, personal injury could result.Release the air pressure from the air system com-pletely before performing maintenance.



Air dryer (1) is positioned on the left side at the rearof the machine.

1. Open the access door in order to service the airdryer.

2. Replace the air dryer desiccant cartridge whenthe water can not be absorbed. Consult yourCaterpillar dealer for service or for replacementparts.


Air Tank Moisture and Sediment - Drain


i01862632

Air Tank Moisture andSediment - Drain

SMCS Code: 4272-543-M&S; 5505-543

Refer to the Operation and Maintenance Manual,Access Doors and Covers for the location of theaccess doors.

1. Open the access door in order to service the drainvalve for moisture and sediment.


2. The air tanks are located in the rear compartmentof the machine behind the left side of the engine.Turn drain valve (1) to the 3:00 position in orderto drain one air tank. Turn drain valve (1) to the9:00 position in order to drain the other air tank.Close the drain valve.


i01900270

All Wheel Drive Accumulator -Check

SMCS Code: 5077-535-YW


Each front wheel has an all wheel drive accumulator(1).

If oil is visible on the seals for either front wheels,check the nitrogen precharge of the all wheel driveaccumulators (1). Consult your Caterpillar dealer forthe correct checking procedure, the correct llingprocedures and the recommended pressure.

i02210210

All Wheel Drive Motor SupplyHose - Inspect/Replace

SMCS Code: 3154-040-YW; 3154-510-YW;4351-040-YW; 4351-510-YW

Hot oil and hot components can cause personalinjury. Do not allow hot oil or hot components tocontact skin.

88 SEBU7473-02Maintenance SectionAll Wheel Drive Oil Filter - Replace


Supply hoses for the all wheel drive motors

Clean the area around each hose before you begininspection.

Inspect each hose for the following conditions:

Leaks

Wear

Damage

Correct any leaks. Replace any worn hoses. Replaceany damaged hoses.

i01900273

All Wheel Drive Oil Filter -Replace

SMCS Code: 5068-510-YW


Clean the area around the ller cap before removingthe ller cap.


1. Slowly loosen ller cap (2) in order to relieve thetank pressure. Remove ller cap (2).


2. Clean the area around all wheel drive lter (3)before removing the all wheel drive lter. Removethe all wheel drive lter (3) with a strap typewrench. See Operation and Maintenance Manual,Oil Filter - Inspect.


Articulation Bearings - Lubricate

Note: Discard any drained uids and discard anylter elements according to local regulations.

3. Clean the housing base for the all wheel drivelter. Make sure that all of the old lter gasket isremoved.

4. Apply a light coat of hydraulic oil to the gasket ofthe new all wheel drive lter.

5. Install the new all wheel drive lter by hand.Additionally tighten the all wheel drive lter by 3/4of a turn, after the gasket contacts the lter base.

6. Maintain the hydraulic oil level above the ADDmark in the sight gauge (1).

7. Inspect the ller cap gasket. If the ller cap gasketis damaged, replace the ller cap gasket. Installthe oil ller cap (2).

i01671010

Articulation Bearings -Lubricate

SMCS Code: 7057-086-BD

Wipe all the ttings before you apply lubricant throughthe ttings. The ttings for the articulation bearingsare located under the cab on the left side of themachine.


The upper articulation bearing has one tting (1).In order to lubricate the upper articulation bearing,use 183-3424 Grease Cartridge to apply lubricantthrough tting (1).

The lower articulation bearing has one tting (2).In order to lubricate the lower articulation bearing,use 183-3424 Grease Cartridge to apply lubricantthrough tting (2).

i01671028

Axle Oscillation Bearings -Lubricate

SMCS Code: 3268; 4313

The lubrication tting is located in the middle of thefront axle. Wipe the tting before you apply lubricantto the tting.


In order to lubricate the axle oscillation bearings, use183-3424 Grease Cartridge to apply lubricant to theone tting.

i02307698

Backup Alarm - Test

SMCS Code: 7406-081

Turn the engine start switch to the ON position inorder to perform the test.

Apply the service brake. Move the transmissioncontrol (lever) to the REVERSE position.

The backup alarm should sound immediately.The backup alarm should continue to sound untilthe transmission control (lever) is moved to theNEUTRAL position or to any FORWARD position.

The backup alarm is located at the rear of themachine.

i00993589

Battery - Recycle

SMCS Code: 1401-561

Always recycle a battery. Never discard a battery.

Always return used batteries to one of the followinglocations:

90 SEBU7473-02Maintenance SectionBattery or Battery Cable - Inspect/Replace

A battery supplier

An authorized battery collection facility

Recycling facility

i01770781

Battery or Battery Cable -Inspect/Replace

SMCS Code: 1401-510; 1402-510

1. Turn the engine start switch key to the OFFposition. Turn all the switches to the OFF position.

2. Turn the key for the battery disconnect switch tothe OFF position. Remove the key.

3. Disconnect the negative battery cable at thebattery disconnect switch. The battery disconnectswitch is connected to the machine frame.

Note: Do not allow the disconnected battery cable tocontact the battery disconnect switch or the machine.

4. Disconnect the negative battery cable from thebattery.

5. Disconnect the positive battery cable from thebattery.

6. Inspect the battery terminals for corrosion. Inspectthe battery cables for wear or damage.

7. If necessary, make repairs. If necessary, replacethe battery cable or the battery.

8. Connect the positive battery cable at the battery.

9. Connect the negative battery cable at the battery.

10.Connect the battery cable at the batterydisconnect switch.

11. Install the key for the battery disconnect switch.Turn the battery disconnect switch to the ONposition.

i01562079

Belt - Inspect

SMCS Code: 1357-040; 1397-040


Note: If a new belt is installed, check the lm on belttightener (2) after 30 minutes of operation. A belt isconsidered to be used after 30 minutes of operation.

1. Stop the engine in order to inspect the belt.

2. Open the engine access door.


3. Inspect the condition of the belt (1).

4. Replace the belt if any of the following conditionsexist:

excessive cracking

excessive wear

excessive damage

5. Inspect the free arm stop part of belt tightener (2).The free arm stop must be aligned with the blackline which is on the decal of belt tightener (2). If thefree arm stop is in the red area, replace the belt.


Belt - Replace

i01562100

Belt - Replace

SMCS Code: 1357-510; 1397-510


1. Release the tension on belt (1). Insert a 12.7 mm(0.50 inch) ratchet into the square hole in thebelt tightener (2) and pry the belt tightener in acounterclockwise direction.

2. Remove the belt.


3. Install the new belt around the pulleys. This isshown in Illustration 91.

i01564804

Blade Cushion Accumulator -Check

SMCS Code: 5077-535-BG

Consult your Caterpillar dealer for the followinginformation:

The correct checking procedure

The correct lling procedures

The recommended pressure

i01862399

Blade Lift Cylinder Socket -Check/Adjust/Replace

SMCS Code: 5102-025; 5102-510; 5102-535;5103-025; 5103-510; 5103-535

1. Rotate the blade. Position the blade at an angleof 90 degrees to the frame. Lower the blade tothe ground.

2. Operate the blade lift cylinders. Observe thesocket. If the socket moves without blademovement, adjustment is necessary.


3. Remove two bolts (2) from each cap (1). Removethe cap (1).

4. Remove one shim from either side of the inserts inorder to reduce clearance.

Note: If you need to remove two shims, then removeone shim from each side of the inserts.

5. Install the cap. Install the bolts and tighten thebolts.

92 SEBU7473-02Maintenance SectionBlade Lift Cylinder Socket - Lubricate

6. Check the socket for movement. If you observemovement in the socket, repeat Step 3 throughStep 5.

Note: If no shims remain, install new inserts. Installtwo shims on each side of the inserts. Add additionalshims, as needed.

i01862405

Blade Lift Cylinder Socket -Lubricate

SMCS Code: 5102-086; 5103-086

Wipe all the ttings before you apply lubricant to thettings.


There are two blade lift cylinders (1).

Each blade lift cylinder socket has one tting (2).In order to lubricate the blade lift cylinder sockets,use 183-3424 Grease Cartridge to apply lubricantto each tting.

i01828321

Brakes, Indicators and Gauges- Test

SMCS Code: 4251-081; 4267-081; 4269-081;7000-081; 7450-081; 7490-081


Look for broken lenses on the gauges, brokenindicator lights or broken switches, etc.

Start the engine. Run the engine until the gaugeshave stabilized.

Look for inoperative gauges.

Turn on all of the machine lights. Check for properoperation.

Sound the horn.

Move the machine forward and test the servicebrakes. If the service brakes do not function properly,see Operation and Maintenance Manual, BrakingSystem - Test in the Maintenance Interval Scheduleof this manual.

Stop the engine.

Make any needed repairs before you operate themachine.


Braking System - Test

i01998856

Braking System - Test

SMCS Code: 3077-081; 4011-081; 4250-081;4251-081; 4267-081

Service Brake Holding Ability Test

Personal injury can result if the machine moveswhile testing.

If the machine begins to move during test, reducethe engine speed immediately and engage theparking brake.

NOTICEIf the machine begins to move, reduce the enginespeed immediately and engage the parking brake.

NOTICEIf the machine moved while testing the service brakeconsult your Caterpillar dealer.

Have the dealer inspect and, if necessary, repair theservice brakes before returning the machine to oper-ation.

Make sure that the area around the machine is clearof personnel and clear of obstacles.

Test the service brake on a dry level surface.

Fasten your seat belt before you test the brakes.

Use the following test in order to determine whetherthe service brake is functional. This test is notintended to measure the maximum holding ability ofthe service brake.

1. Start the engine. Raise the blade slightly. Depressthe transmission modulator control. Apply theservice brake control.

2. Move the transmission control (lever) to FIFTHSPEED FORWARD. Increase the engine speedto high idle.

3. Gradually release the transmission modulatorcontrol. The machine should not move. Theengine should stall.

4. Reduce the engine speed to low idle. Engagethe parking brake control. Lower the blade to theground. Stop the engine.

Note: The friction material for the brake may requirereplacement. The new friction material for the brakemay require burnishing for maximum performance.For the procedure to burnish the new friction materialfor the brake, consult your Caterpillar dealer.

Parking Brake Holding Ability Test

Personal injury can result if the machine moveswhile testing.

It the machine begins to move during test, reducethe engine speed immediately and engage the ser-vice brake control.

NOTICEIf the machine moved while testing the parking brake,consult your Caterpillar dealer.

Have the dealer inspect and, if necessary repair theparking brake before returning the machine to opera-tion.

Be sure that the area around the machine is clear ofpersonnel and clear of obstacles.

Test the parking brake on a hard dry surface.

Fasten the seat belt before you test the parkingbrake.

Use the following test to determine whether theparking brake is functional. This test is not intendedto measure the maximum holding ability of theparking brake.

1. Position the machine on a slope of 20 percent.

2. Engage the parking brake control. Release theservice brake control. The wheels should notrotate. If the wheels rotate, engage the servicebrake control.

i01829689

Cab Air Filter - Clean/Replace

SMCS Code: 7311-070-FI; 7311-510-FI; 7342-070;7342-510

Note: The cab air lters are an optional attachmenton this machine.

94 SEBU7473-02Maintenance SectionCentershift Cylinder Socket - Check/Adjust/Replace


(1) Outside lter(2) Inside lter

Clean the Filters

Note: Clean the cab air lters more often in dustyconditions.

The cab air system has two outside lters. There isone outside lter above each cab door.

The lter for the inside cab air system is positionedbehind the operators seat.

1. Remove the lter cover.

2. Remove the lter elements. Clean the lterelements with pressure air or wash the lterelements in warm water and in a nonsudsinghousehold detergent.

3. Rinse the lter elements in clean water.Thoroughly air dry the lter elements.

4. Install the lter elements. Install the lter cover.

Replace the Filters

Note: Replace the cab air lters, as required.

1. Remove the lter covers.

2. Remove the lter elements. Discard the lterelements.

3. Install the new lter elements.

4. Install the lter covers.

i01828752

Centershift Cylinder Socket -Check/Adjust/Replace

SMCS Code: 5223-023; 5223-025; 5223-535

1. Rotate the blade. Place the blade at an angle of90 degrees to the frame. Lower the blade to theground.

2. Operate the centershift cylinder. Observe thesocket. If the socket moves without movement ofthe drawbar, adjustment is necessary.


3. Remove bolts (1) from cap (2). Remove cap (2).

4. Remove one shim from either side of the inserts inorder to reduce clearance.

Note: If you need to remove two shims, then removeone shim from each side of the inserts.

5. Install the cap and bolts and tighten the bolts.

6. Check the socket for movement. If you observemovement in the socket, repeat Step 3 throughStep 5.

Note: If no shims remain, install new inserts. Installtwo shims on each side of the socket. Add additionalshims, as needed.

i01862638

Centershift Cylinder Socket -Lubricate

SMCS Code: 5223-086

Wipe all the ttings before you apply lubricant to thettings.


Centershift Lock Bar - Clean/Lubricate


The centershift cylinder has one tting on each end.In order to lubricate the centershift cylinder sockets,use 183-3424 Grease Cartridge (5% MolybdenumDisulde) to apply lubricant to the ttings.

i02327869

Centershift Lock Bar -Clean/Lubricate

SMCS Code: 5221-070; 5221-086

Note: Caterpillar recommends the use of 5%molybdenum grease for lubricating the centershiftlock bar. Refer to Special Publication, SEBU6250,Caterpillar Machine Fluids Recommendations formore information on molybdenum grease.


Centershift lock bar (1) is located under the frontframe and above the circle.

Clean the dirt, the lubricant and the rust from theholes in the centershift lock bar.

Apply the appropriate lubricant to the holes in thecentershift lock bar.

i01865351

Circle Clearances -Check/Adjust

SMCS Code: 6152-025; 6152-535; 6153-025;6153-535; 6154-025; 6154-535; 6155-025;6155-535

Blade Circle and Drawbar

1. Rotate the blade. Place the blade at an angle of90 degrees to the frame.

Note: Install the C-clamps before you lower the bladeto the ground.



96 SEBU7473-02Maintenance SectionCircle Clearances - Check/Adjust

2. Clamp two C-clamps onto the front of the bladecircle (1) and the drawbar (2). This will fasten theblade circle and the drawbar together. Tightenthe two C-clamps until the wear strips (3) are incontact with the top of the blade circle and thewear strips (3) are in contact with the bottom ofthe drawbar.

3. Lower the blade to the ground. Stop the engine.

4. Measure the distance (A) that is between the topsurface of the blade circle and the bottom surfaceof the drawbar. Replace the wear strip (3), if thedistance between the top surface of the bladecircle and the bottom surface of the drawbar isless than 1.5 mm (0.06 inch).

5. Inspect the wear strip (3). Inspect the drawbar.The wear strip (3) should be in complete contactat all points with the blade circle. If the wear strip(3) is not in complete contact with the blade circle,replace the wear strip (3).

Blade Circle to Shoe Clearance

1. Rotate the blade. Place the blade at an angle of90 degrees to the frame.

Note: Install the C-clamps before you lower the bladeto the ground.



2. Clamp two C-clamps onto the front of the bladecircle (1) and the drawbar (2). Tighten bothC-clamps until the wear strips (3) contact the topof the circle and the bottom of the drawbar.

3. Lower the blade to the ground. Stop the engine.

Note: Check the wear strips (3) around the entirecircumference of the blade circle. The wear strips (3)should be in complete contact with the blade circleand the drawbar.


4. Shoe mounting fastener (4), shoe mountingfastener (5) and shoe mounting fastener (6) mustbe tight. Make sure that the shoe wear strips (3)are completely seated in the circle shoes.


Circle Clearances - Check/Adjust


5. Measure the clearance (B) between the bottom ofthe circle (1) and the top of the shoe wear strip(7). Maintain a maximum clearance of 0.5 mm(0.02 inch). Maintain the proper clearance byadding shims (8) or by removing shims (8).

Note: The proper clearance will permit the bladecircle to freely rotate for 360 degrees.

Adjust the circle shoes (9) one at a time.

6. Loosen shoe mounting fastener (6). Remove shoemounting fastener (4) and remove shoe mountingfastener (5).

7. Add shims or remove shims, as required.

8. Install shoe mounting fastener (4) and install shoemounting fastener (5). Tighten the shoe mountingfasteners.

9. After all the circle shoes (9) have been adjusted,check the circle shoes (9) for proper clearance.If necessary, perform adjustments to the circleshoes (9).

Note: After all the adjustments have been performed,the blade circle (1) must rotate freely without binding .

Circle Pinion and Circle

Note: The engagement of the circle pinion and thecircle teeth is determined by the adjustment of thecircle shoes. Clean the circle and the pinion. Removeany dirt and any abrasive material. This will reducewear to the circle pinion and to the circle teeth. Also,this will improve the accuracy of the adjustment ofthe circle shoes. After the adjustment, apply cleanlubricant to the circle pinion and to the circle teeth.

1. Rotate the blade. Place the blade at an angleof 90 degrees to the frame. Lower the blade tothe ground. As you slowly inch the machine in aforward direction, apply the service brake. Thiswill hold a light load between the wear strips forthe front circle shoes and the circle. Engage theparking brake. Stop the engine.


2. Measure the clearance (X) that is betweenthe bottom ange of pinion (10) and the innermachined surface of circle (1). If the clearance isless than 49.5 to 52.5 mm (1.95 to 2.07 inch), thenadjust the clearance.


3. Loosen shoe mounting fastener (4), shoemounting fastener (5), shoe mounting fastener (6)and locknuts (11) on the front circle shoes.

4. Loosen the shoe mounting fasteners and thelocknuts for the rear circle shoes.

5. Loosen the shoe mounting fasteners and thelocknuts for the side circle shoes, if equipped.

6. Adjust the front circle shoes one at a time.Turn the adjusting bolts (12) inward or turn theadjusting bolts (12) outward in order to attain49.5 to 52.5 mm (1.95 to 2.07 inch). Adjust theother front circle shoe.

98 SEBU7473-02Maintenance SectionCircle Drive Oil - Change

Note: If the circle shoes are moved outward, it maybe necessary to slowly inch the machine in a forwarddirection in order to place a light load between thewear strips for the front circle shoes and the circle.

Note: Adjust the front shoes so that the front circleshoes have the same clearance measurement.

7. If you cannot attain the correct clearancemeasurement due to worn front shoe wear strips(7), replace the worn shoe wear strips (7). Then,repeat Step 6.

8. Tighten the shoe mounting fasteners and locknutsfor the front circle shoes.

Note: The adjusting bolts must be tight againstthe circle shoes before you tighten the mountingfasteners and the locknuts.

9. Set all of the circle shoes (front, side and rear)to contact the circle. There will be no clearancebetween the circle shoes and the circle.

10.When the pinion clearance is set and the frontcircle shoes are in contact with the blade circle,measure the distance (C) between each wear strip(7) and the blade circle. The clearance should bea maximum of 0.8 mm (0.03 inch).

11. Tighten all shoe mounting fasteners (4), shoemounting fasteners (5) and all shoe mountingfasteners (6) to a torque of 475 60 Nm(350 44 lb ft).

12. Tighten all locknuts (11) to a torque of200 30 Nm (150 22 lb ft).

i01862702

Circle Drive Oil - Change

SMCS Code: 5207-510-OC

NOTICECare must be taken to ensure that uids are containedduring performance of inspection, maintenance, test-ing, adjusting and repair of the product. Be prepared tocollect the uid with suitable containers before open-ing any compartment or disassembling any compo-nent containing uids.

Refer to Special Publication, NENG2500, CaterpillarTools and Shop Products Guide for tools and suppliessuitable to collect and contain uids on Caterpillarproducts.

Dispose of all uids according to local regulations andmandates.

Clean the area around the drain plug and clean thearea around the check/ll plug before you removethe plugs.


Bottom view of the blade circle.


1. Remove drain plug (1). Remove the check/ll plug(2). Allow the oil to drain into a suitable container.

2. Clean the drain plug and install the drain plug.

3. Fill the circle drive housing with oil. See Operationand Maintenance Manual, Capacities (Rell).

4. Clean the check/ll plug and install the check/llplug.

5. Start the engine. Operate the machine for a fewminutes. Check the circle drive housing for leaks.

6. Stop the engine. Remove the check/ll plug andcheck the oil level. Maintain the oil level to thebottom of the ller opening. If necessary, add oil.

7. Install the check/ll plug.


Circle Drive Oil Level - Check

i01862720

Circle Drive Oil Level - Check

SMCS Code: 5207-535-OC

If a leak develops or you suspect a leak, check theoil level.

Wipe the surfaces around the opening for thecheck/ll plug before you check the oil and beforeyou add oil.

The check/ll plug is located on top of the circle drivehousing at the front of the circle.


1. Remove check/ll plug (1).

2. Maintain the oil level to the bottom of the openingfor the check/ll plug.

3. Install check/ll plug (1).

i01674538

Circle Drive Pinion Teeth -Lubricate

SMCS Code: 5207-086-PI

The circle drive pinion teeth are located under thecircle drive housing.


1. Clean the dirt and the old lubricant from bladecircle (1) and from circle drive pinion teeth (2).

2. Use 183-3424 Grease Cartridge (5%Molybdenum Disulde) in order to apply lubricantto blade circle (1). Also use 183-3424 GreaseCartridge (5% Molybdenum Disulde) in order toapply lubricant to circle drive pinion teeth (2).

i01863885

Circle Top - Lubricate

SMCS Code: 6154-086-TP

1. Park the machine on a level surface and engagethe parking brake.

2. Stop the engine. Lower the blade and anyattachments to the ground.


100 SEBU7473-02Maintenance SectionCircuit Breakers - Reset

3. Apply a dry lm lubricant to the 5 mm (0.2 inch)gap between the circle and the drawbar yoke.Apply the dry lm lubricant around the entire circle.See Special Publication, SEBU6250, CaterpillarMachine Fluids Recommendations, Dry FilmLubricant for further information.

i01828809

Circuit Breakers - Reset

SMCS Code: 1417-529; 1420-529


Circuit Breaker Resets Push the buttons inwardin order to reset the circuit breakers. If the system isworking properly, the buttons will remain depressed.If the buttons do not stay depressed, check theappropriate electrical circuit.


The circuit breaker resets are located in the right rearcompartment of the machine.

Engine Circuit Breaker (1) The circuitbreaker for the engine control is 15 amp.

Main Circuit Breaker (2) The maincircuit breaker is 80 amp.

Alternator (3) The circuit breaker for thealternator is 80 amp.

i01863729

Condenser (Refrigerant) -Clean

SMCS Code: 1805-070

NOTICEIf excessively dirty, clean condenser with a brush. Toprevent damage or bending of the ns, do not use astiff brush.

Repair the ns if found defective.



The refrigerant condenser (2) is located in front of theradiator (1) at the rear of the machine.

1. Open the access door at the rear of the machineon the left side of the machine.

2. Inspect the condenser for debris. If necessary,clean the condenser.

3. Use clean water in order to wash off all dust anddirt from the condenser.



Cooling System Coolant Sample (Level 1) - Obtain

i01889947

Cooling System CoolantSample (Level 1) - Obtain

SMCS Code: 1395-554

NOTICEAlways use a designated pump for oil sampling, anduse a separate designated pump for coolant sampling.Using the same pump for both types of samples maycontaminate the samples that are being drawn. Thiscontaminate may cause a false analysis and an incor-rect interpretation that could lead to concerns by bothdealers and customers.

Note: Level 1 results may indicate a need forLevel 2 Analysis.



Obtain the sample of the coolant as close as possibleto the recommended sampling interval. In orderto receive the full effect of SOS analysis, youmust establish a consistent trend of data. In orderto establish a pertinent history of data, performconsistent samplings that are evenly spaced.Supplies for collecting samples can be obtained fromyour Caterpillar dealer.

Use the following guidelines for proper sampling ofthe coolant:

Complete the information on the label for thesampling bottle before you begin to take thesamples.

Keep the unused sampling bottles stored in plasticbags.

Obtain coolant samples directly from the coolantsample port. You should not obtain the samplesfrom any other location.

Keep the lids on empty sampling bottles until youare ready to collect the sample.

Place the sample in the mailing tube immediatelyafter obtaining the sample in order to avoidcontamination.

Never collect samples from expansion bottles.

Never collect samples from the drain for a system.

Submit the sample for Level 1 analysis.

For additional information about coolant analysis, seeSpecial Publication, SEBU6250, Caterpillar MachineFluids Recommendations or consult your Caterpillardealer.

i01892490

Cooling System CoolantSample (Level 2) - Obtain

SMCS Code: 1395-554

NOTICEAlways use a designated pump for oil sampling, anduse a separate designated pump for coolant sampling.Using the same pump for both types of samples maycontaminate the samples that are being drawn. Thiscontaminate may cause a false analysis and an incor-rect interpretation that could lead to concerns by bothdealers and customers.



Obtain the sample of the coolant as close as possibleto the recommended sampling interval. Suppliesfor collecting samples can be obtained from yourCaterpillar dealer.

102 SEBU7473-02Maintenance SectionCooling System Coolant (ELC) - Change

Refer to Operation and Maintenance Manual,Cooling System Coolant Sample (Level 1) - Obtainfor the guidelines for proper sampling of the coolant.

Submit the sample for Level 2 analysis.

For additional information about coolant analysis, seeSpecial Publication, SEBU6250, Caterpillar MachineFluids Recommendations or consult your Caterpillardealer.

i01830361

Cooling System Coolant (ELC)- Change

SMCS Code: 1350-044-NL; 1350-544-NL;1395-044-NL

Personal injury can result from hot coolant, steamand alkali.

At operating temperature, engine coolant is hotand under pressure. The radiator and all linesto heaters or the engine contain hot coolant orsteam. Any contact can cause severe burns.

Remove cooling system pressure cap slowly torelieve pressure only when engine is stopped andcooling system pressure cap is cool enough totouch with your bare hand.

Do not attempt to tighten hose connections whenthe coolant is hot, the hose can come off causingburns.

Cooling System Coolant Additive contains alkali.Avoid contact with skin and eyes.

NOTICEDo not change the coolant until you read and under-stand the material in the Cooling System Specica-tions section.

NOTICEMixing Cat Extended Life Coolant (ELC) with otherproducts reduces the effectiveness of the coolantand shortens coolant life. Use only Caterpillar prod-ucts or commercial products that have passed theCaterpillar EC-1 specications for premixed or con-centrate coolants. Use only Cat Extender with CatELC. Failure to follow these recommendations couldresult in damage to the cooling systems components.

If ELC cooling system contamination occurs, refer toOperation and Maintenance, Extended Life Coolant(ELC) under the topic ELC Cooling System Contam-ination.

This machine was factory lled with Cat Extended LifeCoolant.




If the coolant in the machine is changed to ExtendedLife Coolant from another type of coolant, see SpecialPublication, SEBU6250, Extended Life Coolant(ELC) Cooling System Maintenance.

If the coolant is dirty or if you observe any foamingin the cooling system, change the coolant before therecommended interval.

It is important to replace the thermostat in orderto avoid any unexpected failure of the thermostat.This is a good preventive maintenance practice thatreduces the chances of unscheduled downtime.Failure to replace the thermostat on a regularlyscheduled basis could cause severe engine damage.

Note: If you are only replacing the thermostat, drainthe coolant from the cooling system so that the levelof the coolant is below the thermostat housing.

Always operate Caterpillar engines with a thermostatbecause these engines have a shunt design coolingsystem.


Cooling System Coolant Extender (ELC) - Add

Note: Thermostats can be reused if the thermostatsmeet certain test specications. The testedthermostats must not be damaged and the testedthermostats must not have an excessive buildup ofdeposits.

1. Stop the engine and allow the engine to cool.


2. Open the cover. Slowly remove cooling systempressure cap (1) in order to relieve pressure.


3. Open drain valve (3). Drain valve (3) is locatedon the water line at the lower right side of theengine. Open drain valve (2). Drain valve (2) islocated under the left side of the radiator. Allowthe coolant to drain into a suitable container.

4. Flush the cooling system with clean water until thedraining water is transparent.

5. Close the drain valves.

6. Add the Extended Life Coolant. Refer to Operationand Maintenance Manual, Capacities (Rell).

Note: Make sure that cooling system pressure cap(1) is removed for Steps 7 through 8.

7. Start the engine and run the engine until thethermostat opens and the coolant level stabilizes.

8. Maintain the coolant level within 13 mm (.5 inch)of the bottom of the ller tube.

9. Install cooling system pressure cap (1). Close thecover.

10.Check the radiator for any external leaks. Checkfor air bubbles in the radiator.

11. Stop the engine.

i01830643

Cooling System CoolantExtender (ELC) - Add

SMCS Code: 1352-045; 1352-535; 1352-544;1352-544-NL; 1395-081



Remove cooling system pressure cap slowly torelieve pressure only when engine is stopped andcooling system pressure cap is cool enough totouch with your bare hand.


Cooling System Coolant Additive contains alkali.Avoid contact with skin and eyes.




104 SEBU7473-02Maintenance SectionCooling System Coolant Level - Check

When a Caterpillar Extended Life Coolant (ELC)is used, an extender must be added to the coolingsystem. See the Operation and MaintenanceManual, Maintenance Interval Schedule for theproper service interval. The amount of extender isdetermined by the cooling system capacity.

1. Stop the engine and allow the engine to cool.


2. Open the cover. Remove cooling system pressurecap (1) slowly in order to relieve the pressure.

3. Drain some coolant from the radiator into asuitable container. This will allow space foradditional cooling system coolant extender.

4. In order to add cooling system coolant extender,refer to the Special Publication, SEBU6250,Extended Life Coolant (ELC). Refer to the tablefor the correct amount of Caterpillar ExtendedLife Coolant (ELC) Extender that is needed to beadded to the cooling system.

5. Install cooling system pressure cap (1). Close thecover.

i01889958

Cooling System Coolant Level- Check

SMCS Code: 1350-040-HX; 1350-040;1350-535-FLV; 1350-535; 1353-535-FLV;1354-535; 1395-082; 1395-535-FLV; 1395-535



Remove ller cap slowly to relieve pressure onlywhen engine is stopped and radiator cap is coolenough to touch with your bare hand.


Cooling System Conditioner contains alkali. Avoidcontact with skin and eyes.

The sight gauge for the cooling system is located onthe left side of the machine at the rear of the machine.


1. Maintain coolant level so that coolant is visible insight gauge (1).


Cooling System Pressure Cap - Clean/Replace


2. If necessary, add the appropriate coolant mixture.Open the cover. Remove ller cap (2) slowly inorder to relieve pressure. Add coolant through theller tube.

3. Install ller cap (2). Close the cover.

i01834310

Cooling System Pressure Cap- Clean/Replace

SMCS Code: 1382-070; 1382-510






Cooling system pressure cap (1) is positioned in theleft rear of the hood.


1. Open the cover. Remove pressure cap (1) slowlyin order to relieve pressure.

2. Inspect the cap and the cap seal for damage,deposits, and foreign material. Clean the capwith a clean cloth. Replace the cap if the cap isdamaged.

3. Install the cap. Close the cover.

i00350379

Cooling System WaterTemperature Regulator -Replace

SMCS Code: 1355-070; 1355-510; 1393-010






106 SEBU7473-02Maintenance SectionCrankshaft Vibration Damper - Inspect

Replace the cooling system water temperatureregulator on a regular basis in order to reduce thechance of unscheduled downtime and of problemswith the cooling system.

The water temperature regulator should be replacedafter the cooling system has been cleaned. Replacethe water temperature regulator while the coolingsystem is completely drained or while the coolingsystem coolant is drained to a level that is below thewater temperature regulator housing assembly.

NOTICEFailure to replace the engines water temperature reg-ulator on a regularly scheduled basis could cause se-vere engine damage.

Note: If you are only replacing the water temperatureregulator, drain the cooling system coolant to a levelthat is below the water temperature regulator housingassembly.

1. Loosen the hose clamp and remove the hose fromthe water temperature regulator housing.

2. Remove the bolts from the water temperatureregulator housing and remove the watertemperature regulator housing.

3. Remove the gasket and remove the watertemperature regulator from the water temperatureregulator housing.

NOTICEFormer water temperature regulators may be used, ifthey meet test specications and are not damaged orhave excessive buildup or deposits.

NOTICESince Caterpillar engines incorporate a shunt designcooling system, it is mandatory to always operate theengine with a water temperature regulator.

Depending on load, failure to operate with a watertemperature regulator could result in either an over-heating or an overcooling condition.

NOTICEIf the water temperature regulator is installed incor-rectly, it will cause the engine to overheat.

4. Install a new water temperature regulator anda new gasket. Install the water temperatureregulator housing.

5. Install the water temperature regulator housingand the hose. Tighten the hose clamp.

6. Add the cooling system coolant. Maintain thecoolant level within 13 mm (.5 inch) of the bottomof the ller tube.

i01505528

Crankshaft Vibration Damper- Inspect

SMCS Code: 1205-040

Damage to the vibration damper or failure of thevibration damper will increase torsional vibrations.These vibrations will result in damage to thecrankshaft and to the other engine components. Adeteriorating vibration damper will cause excessivegear train noise at variable points in the speed range.


Caterpillar recommends replacing vibration damper(1) for any of the following reasons:

The engine has had a failure because of a brokencrankshaft.


Cutting Edges and End Bits - Inspect/Replace

The SOS analysis detected a worn crankshaftfront bearing.

The SOS analysis detected a large amount ofgear train wear that is not caused by a lack of oil.

Fluid leakage is detected during inspection.

The housing is damaged.

Refer to Disassembly and Assembly, VibrationDamper & Pulley for the procedure to remove thedamper and for the procedure to install the damper.

The vibration damper can be used again if none ofthe above conditions are found or if the vibrationdamper is not damaged.

Note: Contact your Caterpillar dealer for furtherinformation.

i01569254

Cutting Edges and End Bits -Inspect/Replace

SMCS Code: 6801-040; 6801-510; 6804-040;6804-510

Personal injury or death can result from the bladefalling.

Block the blade before changing blade tips.


End bits (1) and/or cutting edges (2) may bedamaged. End bits (1) and/or cutting edges (2) maybe worn excessively. Replace the end bits (1) and/orthe cutting edges (2), as needed.

1. Place blocks under the blade. Lower the bladeonto the blocks. Do not block up the blade toohigh. Just use enough blocks so that end bits (1)and cutting edges (2) can be removed.

2. Remove end bits (1) and/or cutting edges (2).

3. Install new end bits (1) and/or new cutting edges(2).

4. Raise the blade and remove the blocks.

i02528905

Drawbar Ball and Socket -Lubricate

SMCS Code: 6170-086; 6171-086

Note: Caterpillar recommends the use of 5%molybdenum grease for lubricating the drawbar balland socket. Refer to Special Publication, SEBU6250,Caterpillar Machine Fluids Recommendations formore information on molybdenum grease.

Wipe the tting before you apply lubricant throughthe tting.


Apply the appropriate lubricant through the tting inorder to lubricate the drawbar ball and socket.

108 SEBU7473-02Maintenance SectionDrawbar Ball and Socket End Play - Check/Adjust

i02528988

Drawbar Ball and Socket EndPlay - Check/Adjust

SMCS Code: 6170-025; 6170-535; 6171-025;6171-535

Check

Rotate the blade so that the blade is placed at anangle of 90 degrees to the frame. Lower the blade tothe ground. While you maintain a light load betweenthe ball and the socket, inch the machine slowly tothe rear. Stop the machine and shut off the engine.


Measure the end play that is between ball (2) andcap (3). The end play should be 0.6 0.2 mm(.02 .01 inch). Adjust the end play, if necessary.

Adjust

1. Support the drawbar and support the circle.

2. Remove bolts (1) that hold the drawbar to thebolster. Move the drawbar backward or move themachine forward.


3. Remove capscrews (7) from cap (3) that holds thedrawbar and adapter (6) together. Remove theadapter.

4. As required, remove shims (4) or install shims(4) in order to attain an end play of 0.6 0.2 mm(.02 .01 inch).

5. Install capscrews (7) in cap (3) and adapter (6).Rotate cap (3) by hand. The socket should rotatefreely on ball (2).

6. Check the torque on bolts (5) that hold ball (2)in place. The correct torque is 500 65 Nm(370 50 lb ft).

7. Assemble the drawbar to the bolster. Tighten bolts(1) to a torque of 950 50 Nm (701 37 lb ft).

i01649392

Electronic Unit Injector -Inspect/Adjust

SMCS Code: 1251-025; 1251-040; 1290-025;1290-040

Be sure the engine cannot be started while thismaintenance is being performed. To prevent pos-sible injury, do not use the starting motor to turnthe ywheel.

Hot engine components can cause burns. Allowadditional time for the engine to cool before mea-suring/adjusting the unit injectors.

The electronic unit injectors use high voltage. Dis-connect the unit injector enable circuit connectorin order to prevent personal injury. Do not comein contact with the injector terminals while the en-gine is running.

NOTICEOnly qualied service personnel should perform thismaintenance. Refer to the Service Manual or yourCaterpillar dealer for the complete valve lash adjust-ment procedure.

Operation of Caterpillar engines with improper valveadjustments can reduce engine efciency. This re-duced efciency could result in excessive fuel usageand/or shortened engine component life.


Engine Air Filter Primary Element - Clean/Replace

The initial adjustment to the unit injector isrecommended at the initial 500 hour interval. Theunit injector adjustment should then be made atevery 2000 hour interval. The operation of Caterpillarengines with improper adjustments of the electronicunit injector can reduce engine efciency. Thisreduced efciency could result in excessive fuelusage and/or shortened engine component life.

i01631934

Engine Air Filter PrimaryElement - Clean/Replace

SMCS Code: 1051-070-PY; 1051-510-PY;1054-070-PY; 1054-510-PY

NOTICEService the air cleaner only with the engine stopped.Engine damage could result.

Service the air cleaner lter element when theyellow piston on the engine air lter serviceindicator enters the red zone or the indicatorreads 63.5 cm (25 inch) of water. Refer toOperation and Maintenance Manual, Engine AirFilter Service Indicator - Inspect.

1. Open the access door for the air lter housing.Refer to Operation and Maintenance Manual,Access Doors and Covers.


2. Remove cover (1) for the air lter housing .

3. Remove primary lter element (2) from the airlter housing.

4. Clean the inside of the air lter housing.

5. If the machine is equipped with a vacuator valve,clean the vacuator valve on the cover for the airlter housing.

6. Install a clean primary air lter element. Install thecover for the air lter housing.

Note: Refer to Cleaning Primary Air Filter Elements.

7. Reset the engine air lter service indicator.


If the yellow piston in the indicator moves into the redzone after starting the engine or the exhaust smokeis still black after installation of a clean primary lterelement, install a new primary lter element. If thepiston remains in the red zone replace the secondaryelement.

Cleaning Primary Air FilterElements

NOTICECaterpillar recommends certied air lter cleaning ser-vices available at participating Caterpillar dealers. TheCaterpillar cleaning process uses proven proceduresto assure consistent quality and sufcient lter life.

Observe the following guidelines if you attempt toclean the lter element:

Do not tap or strike the lter element in order to re-move dust.

Do not wash the lter element.

Use low pressure compressed air in order to removethe dust from the lter element. Air pressure must notexceed 207 kPa (30 psi). Direct the air ow up thepleats and down the pleats from the inside of the lterelement. Take extreme care in order to avoid damageto the pleats.

Do not use air lters with damaged pleats, gaskets, orseals. Dirt entering the engine will cause damage toengine components.

The primary air lter element can be used up tosix times if the element is properly cleaned andinspected. When the primary air lter element iscleaned, check for rips or tears in the lter material.The primary air lter element should be replaced atleast one time per year. This replacement should beperformed regardless of the number of cleanings.

NOTICEDo not clean the air lter elements by bumping or tap-ping. This could damage the seals. Do not use ele-ments with damaged pleats, gaskets, or seals. Dam-aged elements will allow dirt to pass through. Enginedamage could result.

110 SEBU7473-02Maintenance SectionEngine Air Filter Primary Element - Clean/Replace

Visually inspect the primary air lter elements beforecleaning. Inspect the air lter elements for damageto the seal, the gaskets, and the outer cover. Discardany damaged air lter elements.

There are two common methods that are used toclean primary air lter elements:

Pressurized air

Vacuum cleaning

Pressurized Air

Pressurized air can be used to clean primary air lterelements that have not been cleaned more than twotimes. Pressurized air will not remove deposits ofcarbon and oil. Use ltered, dry air with a maximumpressure of 207 kPa (30 psi).


Note: When the primary air lter elements arecleaned, always begin with the clean side (inside)in order to force dirt particles toward the dirty side(outside).

Aim the hose so that the air ows inside the elementalong the length of the lter in order to help preventdamage to the paper pleats. Do not aim the stream ofair directly at the primary air lter element. Dirt couldbe forced further into the pleats.

Vacuum Cleaning

Vacuum cleaning is another method for cleaningprimary air lter elements which require daily cleaningbecause of a dry, dusty environment. Cleaning withpressurized air is recommended prior to vacuumcleaning. Vacuum cleaning will not remove depositsof carbon and oil.

Inspecting the Primary Air FilterElements


Inspect the clean, dry primary air lter element. Usea 60 watt blue light in a dark room or in a similarfacility. Place the blue light in the primary air lterelement. Rotate the primary air lter element. Inspectthe primary air lter element for tears and/or holes.Inspect the primary air lter element for light that mayshow through the lter material. If it is necessary inorder to conrm the result, compare the primary airlter element to a new primary air lter element thathas the same part number.

Do not use a primary air lter element that has anytears and/or holes in the lter material. Do not usea primary air lter element with damaged pleats,gaskets or seals. Discard damaged primary air lterelements.

Storing Primary Air Filter Elements

If a primary air lter element that passes inspectionwill not be used, the primary air lter element canbe stored for future use.



Engine Air Filter Secondary Element - Replace

Do not use paint, a waterproof cover, or plastic as aprotective covering for storage. An airow restrictionmay result. To protect against dirt and damage, wrapthe primary air lter elements in Volatile CorrosionInhibited (VCI) paper.

Place the primary air lter element into a box forstorage. For identication, mark the outside of thebox and mark the primary air lter element. Includethe following information:

Date of cleaning

Number of cleanings

Store the box in a dry location.

i01562943

Engine Air Filter SecondaryElement - Replace

SMCS Code: 1051-510-SE; 1054-510-SE

NOTICEAlways replace the secondary element. Do not at-tempt to reuse it by cleaning. Engine damage couldresult.


Note: Replace the engine air lter secondary elementwhen you service the engine air lter primary elementfor the third time. Replace the secondary elementif the exhaust smoke remains black and a cleanprimary element has been installed. Also, replacethe secondary element if the element has been inservice for one year.

1. Open the access door on the left side of theengine compartment. Remove the air cleanercover and the primary element.


2. Remove the secondary element.

3. Cover the air inlet opening. Clean the inside ofthe air cleaner housing.

4. Uncover the air inlet opening. Install a newsecondary element.

5. Install the primary element and the air cleanercover.

6. Close the left side engine compartment door.

Note: When you replace the air lter element, youmust replace the lter screen. Refer to Operationand Maintenance Manual, Engine Air Filter ServiceIndicator Screen - Check/Replace.

i01567539

Engine Air Filter ServiceIndicator - Inspect

SMCS Code: 7452-040; 7452-040-DJ;7452-040-ENG



1. Start the engine.

2. Run the engine at high idle.

3. Open the left side engine compartment door.

4. If the yellow piston in the engine air lter serviceindicator enters the red zone, service the aircleaner.

5. Stop the engine.

112 SEBU7473-02Maintenance SectionEngine Air Filter Service Indicator - Inspect/Replace

Note: See the Operation and Maintenance Manual,Engine Air Filter Primary Element - Clean/Replace.See the Operation and Maintenance Manual, EngineAir Filter Secondary Element - Replace.

Note: Refer to Operation and Maintenance Manual,Engine Air Filter Service Indicator - Inspect/Replacein order to check an engine air lter service indicatorthat is faulty.

i01563032

Engine Air Filter ServiceIndicator - Inspect/Replace

SMCS Code: 7452-040; 7452-510


1. Open the access door.


2. Stop the engine. Check the operation of theservice indicator by pressing the reset button onthe bottom of the service indicator. This shouldrequire three pushes or less of the reset button.

3. Next, check the movement of the yellow pistonin the service indicator. Start the engine andaccelerate the engine to high idle for a fewseconds. After the accelerator control (pedal)is released, the yellow piston should remain atthe highest position that was achieved duringacceleration.

Note: The air lter indicator should be replacedduring engine overhauls. The air lter indicator shouldalso be replaced during replacement of any majorengine component . Replace the air lter indicator atleast one time per year.

4. If the indicator will not reset easily, replace theservice indicator. If the yellow piston of theindicator will not latch at the highest vacuum that isattained, replace the service indicator. Tighten theindicator to a torque of 2 Nm (18 lb in). Excessivetightening force may crack the top of the indicator.For more information on the air lter indicator,refer to Video Tape, PEVN1736, Caterpillar AirFilter Service Indicator.

Note: If you still believe that the service indicatoris working improperly, refer to Operation andMaintenance Manual, Engine Air Filter ServiceIndicator Screen - Check/Replace.


i01507598

Engine Air Filter ServiceIndicator Screen -Check/Replace

SMCS Code: 7452-510-Z3; 7452-535-Z3


Typical Example

Check


1. Set an 8N-2694 Air Filter Service Indicator toindicate a restricted indicator screen.

2. Screw the indicator onto a 1/8 inch NPT pipenipple.


Engine Air Precleaner - Clean

3. Open the access door in order to service theindicator screen.

4. Screw the other end of the nipple into the tting inthe tube assembly. Normally, lter screen (1) islocated in the tube assembly.

5. Depress the reset button on the 8N-2694 AirFilter Service Indicator.

6. If the indicator resets, lter screen (1) is notplugged. If the indicator does not reset, lterscreen (1) is plugged. Filter screen (1) should bereplaced.

Replace

1. Remove the air cleaner from the air cleanerhousing. Removing the air cleaner from the aircleaner housing will provide access to the holeinside the tube assembly. Filter screen (1) isinstalled inside the tube assembly.

2. A 50.8 mm (2.00 inch) piece of 3.18 mm(0.125 inch) drill rod is needed in order to pushlter screen (1) from the inside of the tubeassembly to the outside.

3. After the plugged lter screen (1) has beenremoved, install a new lter screen (1) in the holeon the outside of the tube assembly. Use a pieceof 6.4 mm (0.25 inch) drill rod to lightly seat thelter element in the bottom of the bore.

i01550089

Engine Air Precleaner - Clean

SMCS Code: 1055-070; 1055-070-DJ

NOTICEService the engine air precleaner only with the enginestopped. Engine damage could result.

The engine air precleaner is positioned on top of theengine compartment.


1. Loosen clamp (1) at the bottom of engine airprecleaner (2).

2. Remove engine air precleaner (2) and inspect theopening for dirt and debris. Clean the tubes, ifnecessary.

3. Clean engine air precleaner (2) with pressure airor wash the engine air precleaner (2) in cleanwarm water.

4. Install engine air precleaner (2). Tighten clamp (1).

i01632265

Engine Crankcase Breather -Replace

SMCS Code: 1317-510

Only replace the engine crankcase breather whenyou rebuild the engine.

i01862862

Engine Oil Level - Check

SMCS Code: 1000-535-FLV; 1302-535-FLV;1326-535-OC; 1326-535-FLV; 1348-535-FLV


NOTICEDo not under ll or overll engine crankcase with oil.Either condition can cause engine damage.

114 SEBU7473-02Maintenance SectionEngine Oil Sample - Obtain


Clean the area around the dipstick and clean thearea around the oil ller cap before you remove thedipstick and before you remove the oil ller cap.

1. Open the left side engine compartment door.


2. Before starting the engine, check the ENGINESTOPPED side of dipstick (1). Maintain the oillevel between the ADD mark and the FULLmark.

3. Remove oil ller cap (2). If necessary, add oil.

4. Clean the oil ller cap and install the oil ller cap.


i01862786

Engine Oil Sample - Obtain

SMCS Code: 1348-008; 1348-554-SM; 7542-008;7542-554-OC, SM



The sampling valve for the engine oil is located onthe left side of the engine compartment.

Refer to Special Publication, SEBU6250, SOS OilAnalysis for information that pertains to obtaining asample of the engine oil. Refer to Special Publication,PEHP6001, How To Take A Good Oil Sample formore information about obtaining a sample of theengine oil.

i01862873

Engine Oil and Filter - Change

SMCS Code: 1302-044-OC; 1308-510; 1318-510;1326-535-OC; 1348-044

Selection of the Oil Change Interval

NOTICEThis machine is equipped with an engine that meetsEPA Tier 2, Euro Stage II, or MOC Step 2 emissionregulations. A 500 hour engine oil change interval isavailable, provided that operating conditions and rec-ommended multigrade oil types are met. When theserequirements are not met, shorten the oil changeinterval to 250 hours, or use an SOS oil samplingand analysis program to determine an acceptable oilchange interval.

If you select an interval for oil and lter change that istoo long, you may damage the engine.

Caterpillar oil lters are recommended.

Recommended multigrade oil types are listed inTable 9. Do not use single grade oils.


Engine Oil and Filter - Change


API Trademark

Commercial oils that are licensed by the American PetroleumInstitute (API) bear this trademark. Commercial oils that do

not bear this trademark are not licensed and these oils arenot recommended. Oils that are not listed in Table 9 are not

recommended.

Abnormally harsh operating cycles or harshenvironments can shorten the service life ofthe engine oil. Arctic temperatures, corrosiveenvironments, or extremely dusty conditions mayrequire a reduction in engine oil change intervalsfrom the recommendations in Table 9. Also referto Special Publication, SEBU5898, Cold WeatherRecommendations. Poor maintenance of air ltersor of fuel lters requires reduced oil change intervals.See your Caterpillar dealer for more information if thisproduct will experience abnormally harsh operatingcycles or harsh environments.

Table 9

H-Series Emissions Motor GradersEngine Oil Change Interval(1)

Operating Conditions

Severe

MultigradeOil Type Normal(2)

HighLoad

Factor(3)

FuelSulfurfrom

0.3% to0.5%(4)

Altitudeabove1830 m(6000 ft)

Cat DEOPreferred

500 hr 500 hr 500 hr 250 hr(6)

API CH-411.0

minimumTBN(4)

Preferred

500 hr 500 hr 500 hr 250 hr(6)

API CH-4TBN(4)

below 11.0500 hr 500 hr 250 hr(5) 250 hr(6)

API CG-4 500 hr 250 hr(5) 250 hr(5) 250 hr(6)

API CF-4(7) 250 hr(5) 250 hr(6) 250 hr(6) 250 hr(6)

(1) The traditional oil change interval for engines is 250 hours.The standard oil change interval in this machine is 500 hours, if

the operating conditions and recommended oil types that arelisted in this table are met. Improvements in the engine allow

this engine oil change interval. This new standard interval is notpermitted for other machines. Refer to the applicable Operation

and Maintenance Manuals for the other machines.(2) Normal conditions include these factors: Fuel sulfur below

0.3%, altitude below 1830 m (6000 ft), and good air lter and

fuel lter maintenance. Normal conditions do not include high

load factor, harsh operating cycles, or harsh environments.(3) High load factors can shorten the service life of your engine

oil. Continuous heavy load cycles and very little idle time result

in increased fuel consumption and oil contamination. Thesefactors deplete the oil additives more rapidly. Average fuel

consumption of more than 29 L (7.7 US gal) of fuel per hour isconsidered to be a high load factor. To determine average fuel

consumption, measure average fuel consumption for a periodof 50 to 100 hours. If the application of the machine is changed,

the average fuel consumption may change.(4) For sulfur content above 0.5%, refer to Special Publication,

SEBU6250, Total Base Number (TBN) and Fuel Sulfur Levelsfor Direct Injection (DI) Diesel Engines.

(5) In order to verify an oil change interval of 500 hours, refer to

Program A below.(6) Use Program B below to determine an appropriate interval.(7) API CF-4 oil is a fourth choice oil for other machine diesel

engines. SOS Oil Analysis is recommended when you use

API CF-4 oil for drain intervals above 125 hours.

Adjustment of the Oil Change Interval

Note: Your Caterpillar dealer has additionalinformation on these programs.

Program A

Verication for an Oil Change Interval of 500 Hours

116 SEBU7473-02Maintenance SectionEngine Oil and Filter - Change

This program consists of three oil change intervals of500 hours. Oil sampling and analysis is done at 250hours and 500 hours for each of the three intervalsfor a total of six oil samples. The analysis includesoil viscosity and infrared (IR) analysis of the oil. Ifall of the results are satisfactory, the 500 hour oilchange interval is acceptable for the machine in thatapplication. Repeat Program A if you change theapplication of the machine.

If a sample does not pass the oil analysis, take oneof these actions:

Shorten the oil change interval to 250 hours.

Proceed to Program B.

Change to a preferred oil type in Table 9.

Program B

Optimizing Oil Change Intervals

Begin with a 250 hour oil change interval. The oilchange intervals are adjusted by increments. Eachinterval is adjusted an additional 50 hours. Periodic oilsampling and analysis is done during each interval.The analysis includes oil viscosity and infrared (IR)analysis of the oil. Repeat Program B if you changethe application of the machine.

If an oil sample does not pass the analysis, shortenthe oil change interval, or change to a preferredmultigrade oil type in the listing above.

References

Reference: Form, PEDP7035, Optimizing OilChange Intervals

Reference: Form, PEDP7036, SOS Fluid Analysis

Reference: Form, PEHP7076, Understanding theSOS Services Tests

Procedure for Changing the EngineOil and Filter





NOTICEDo not under ll or overll engine crankcase with oil.Either condition can cause engine damage.


Park the machine on a level surface and engage theparking brake. Stop the engine.

Note: Drain the crankcase while the oil is warm. Thisallows waste particles that are suspended in the oil todrain. As the oil cools, the waste particles will settleto the bottom of the crankcase. The particles will notbe removed by draining the oil and the particles willrecirculate in the engine lubrication system with thenew oil.


1. Open crankcase drain valve (1). Allow the oil todrain into a suitable container.

2. Close crankcase drain valve (1).

SEBU7473-02 117Maintenance SectionEngine Overheating


3. Clean the area around engine oil lter (2) beforeyou remove engine oil lter (2). Remove engineoil lter (2) with a strap type wrench. Refer toOperation and Maintenance Manual, Oil Filter -Inspect.

4. Clean the base of the engine oil lter housing.Make sure that all of the old lter gasket isremoved.

5. Apply a light coat of engine oil to the gasket of thenew engine oil lter.

6. Install the new engine oil lter by hand. Additionallytighten the engine oil lter by 3/4 of a turn, afterthe gasket contacts the lter base.

7. Clean the area around dipstick (3) before youremove the dipstick. Clean the area around oilller cap (4) before you remove the oil ller cap.Remove oil ller cap (4). Fill the crankcase withnew oil. See Operation and Maintenance Manual,Capacities (Rell). Clean the ller cap and installthe ller cap.

8. Start the engine and allow the oil to warm. Checkthe engine for leaks.

9. Stop the engine. Close the left side enginecompartment door on the machine.

i01900293

Engine Overheating

SMCS Code: 1000; 1350; 1353

If your machine experiences an engine overheatingproblem, do the following maintenance proceduresin the order that is listed:

1. Operation and Maintenance Manual, CoolingSystem Coolant Level Check

2. Operation and Maintenance Manual, Radiator -Clean

3. Operation and Maintenance Manual, Belt -Inspect

4. Operation and Maintenance Manual, CoolingSystem Pressure Cap - Clean/Replace

5. Operation and Maintenance Manual, RadiatorCore - Clean

6. Operation and Maintenance Manual, CoolingSystem Water Temperature Regulator - Replace

If the engine overheating problem is not corrected,consult your Caterpillar dealer.

i01900299

Engine Power Loss

SMCS Code: 1000; 1051; 1250

If your machine experiences an engine power loss,perform the following maintenance procedures in theorder that is listed:

1. Operation and Maintenance Manual, Engine AirFilter Service Indicator - Inspect

2. Operation and Maintenance Manual, Engine AirPrecleaner - Clean

3. Operation and Maintenance Manual, Engine AirFilter Primary Element - Clean/Replace

4. Operation and Maintenance Manual, Engine AirFilter Secondary Element - Replace

5. Operation and Maintenance Manual, Fuel TankWater and Sediment - Drain

6. Operation and Maintenance Manual, Fuel TankCap and Strainer - Clean

7. Operation and Maintenance Manual, Fuel SystemWater Separator Element - Replace

8. Operation and Maintenance Manual, Fuel SystemSecondary Filter - Replace

If the power loss is not corrected, consult yourCaterpillar dealer.

118 SEBU7473-02Maintenance SectionEngine Valve Lash - Check

i01498587

Engine Valve Lash - Check

SMCS Code: 1105-535

Ensure that the engine can not be started whilethis maintenance is being performed. To help pre-vent possible injury, do not use the starting motorto turn the ywheel.

Hot engine components can cause burns. Allowadditional time for the engine to cool before mea-suring/adjusting valve lash clearance.

NOTICEOnly qualied service personnel should perform thismaintenance. Refer to the Service Manual or yourCaterpillar dealer for the complete valve lash adjust-ment procedure.

Operation of Caterpillar engines with improper valveadjustments can reduce engine efciency. This re-duced efciency could result in excessive fuel usageand/or shortened engine component life.

NOTICEDo not use the yoke that comes out of the front of theengine in order to turn over the engine. Damage to thecrankshaft vibration damper can occur.

The adjustment is necessary due to the initial wear ofthe valve train components and to the seating of thevalve train components.

This maintenance is recommended by Caterpillaras part of a lubrication and preventive maintenanceschedule in order to help provide maximum enginelife.

Ensure that the engine is stopped before youmeasure the valve lash. To obtain an accuratemeasurement, allow the valves to cool before youperform this maintenance.

Remove the cover in order to access the rear ofthe engine. Check the valve lash. For the correctadjustment procedure, refer to Systems Operation,Testing and Adjusting, Engine Valve Lash -Inspect/Adjust.

i00128925

Engine Valve Rotators - Inspect

SMCS Code: 1109-040

When inspecting the valve rotators, protectiveglasses or face shield and protective clothingmust be worn, to prevent being burned by hot oilspray.

Inspect the engine valve rotators after the valveclearances have been set.

1. Start the engine and run the engine at low idle.

2. Watch the top surface of each valve rotator. Whenthe intake valve or the exhaust valve closes, theengine valve rotator should turn slightly.

If an intake valve or an exhaust valve fails to rotate,consult your Caterpillar Dealer.

i01667363

Ether Starting Aid Cylinder -Replace

SMCS Code: 1456-510-CD


1. Open the access door at the rear of the machineon the left side of the machine.



Evaporator Coil and Heater Coil - Clean

2. Loosen the retaining clamp on ether starting aidcylinder (1). Remove the empty ether starting aidcylinder. Properly discard the empty ether startingaid cylinder.

3. Remove the used gasket. Install the new gasketthat is provided with each new ether starting aidcylinder.

4. Install the new ether starting aid cylinder. Tightenthe ether starting aid cylinder hand tight. Tightenthe retaining clamp on the ether starting aidcylinder securely.

5. Close the rear access door on the left side of themachine.

i01827363

Evaporator Coil and HeaterCoil - Clean

SMCS Code: 7309-070; 7343-070

The evaporator coil and the heater coil are locatedunder the seat in the cab.

1. Remove the seat.

2. Remove both of the covers.


3. Clean evaporator coil (1) and clean heater coil (2).Replace both coils.

4. Replace both of the covers and replace the seat.

Note: If you are operating the machine under harshconditions or with the cab door open, it may benecessary to clean the coils more often.

i01900313

Final Drive Preload - Check

SMCS Code: 4050-535-ZP




Table 10

Required Tools

Tool PartNumber

Description Quantity

A 5P-4204 Wrench 1

B 9U-5015 TorqueWrench Gp(3/4 InchDrive)

1

Table 11

Preload Torque for the Final Drive Bearing

Sales Model Final Torque

143H 136 Nm (100 lb ft)

163H 136 Nm (100 lb ft)

1. Park the machine on a level surface.

2. Refer to the Operation and Maintenance Manual,Jacking Locations for the proper lifting points.Support the machine so that the rear tires areoff the ground. The machine must be in a stableposition in order to be able to turn the rear tires.

3. Unlock the differential.

4. Drain the oil below the level of the outer cover.

120 SEBU7473-02Maintenance SectionFuel System - Fill


5. Remove outer cover (1).


6. Remove lock (2).


7. Install Tool (A) and Tool (B). Refer to Table 10.

8. Check the torque. Refer to Table 11.

9. If the torque is not within specications, refer tothe Power Train Systems Operation, Testing andAdjusting, Final Drive Bearings - Adjust.

i02573704

Fuel System - Fill

SMCS Code: 1250-544

Personal injury or death may result from failure toadhere to the following procedures.

Fuel leaked or spilled onto hot surfaces or electri-cal components can cause a re.

Clean up all leaked or spilled fue

143h and 163h moto niveladora

Documents

frequent maintenance

maintenance procedures

engine overheating

oil filter

radiator clean

end bits inspectreplace

window wiper inspectreplace

engine crankcase breather