INSTALLATION MANUAL

FOR

Mud Hog® System II & System III 2-Speed Rear Wheel Drive

FOR

CASE INTERNATIONAL

2055, 2155, 2555 COTTON PICKERS

Mud Hog® Model Numbers Specifications MH System

CI49552 102-110” TC II CI49562 102-110” TC III CI49572 82-94” TC II CI49582 82-94” TC III

®

TUTHILL Drive Systems

Brookston Indiana USA

Revised 8/2006

P.N. 105291

TABLE OF CONTENTS

DESCRIPTION PAGE #

Instructuctions & Specifications.......................................................2

Safety Procedures............................................................................3

Mud Hog System Identification........................................................4

Installing Mud Hog Components......................................................5

Mounting Equa-Trac II Valve.............................................................6

Mounting Oscillation Stops & Hose Guide Bracket.......................6

Mounting Manifold Adapter Block....................................................7

Connecting & Routing Hydraulic Hoses....................................8-14

Mounting of Electrical Components.........................................15-19

Mounting Wheels & Setting Toe-In................................................20

Pre-Start Procedures.....................................................................20

Warranty..........................................................................Back Cover

Instructions and Specifications

INTRODUCTION

This manual provides instructions for installing the Mud Hog Drive System on hydrostatic machines. Variousmachine options such as rear axle width and front tire size affect Mud Hog adaptation. These differences arespecifically referred to in these instructions. Always follow the instructions which refer to the exact optionconfiguration on the machine being converted.

A complete pictorial breakdown of all the individual parts in the Mud Hog Drive System can be found in the MudHog Parts Catalog. Refer to this catalog for proper identification of parts required for service.

GENERAL

The terms right and left in these instructions are the same as the operators right and left hand when positioned in theoperator’s seat facing forward. IMPORTANT: Cleanliness is essential when installing or servicing hydrauliccomponents. When making hydraulic connections, areas surrounding the connection should be steam cleaned orwashed with solvent so that contamination will not enter the system. Always keep hoses and connectors and portssuitably capped or covered to keep contamination out of the system. CAUTION: Make sure that system pressure isrelieved before disconnecting any lines or connections. Pressurized fluid escaping from the system can cause seriouspersonal injury.

TORQUE SPECIFICATIONS RECOMMENDED FOR USE WITH Mud Hog FASTENERSRecheck all bolt & nut torque after 1 hour’s use and again after first day of use. Periodically check tightness every100 hours of use thereafter. Note: bolts that require Loctite should not be re-tightened once Loctite has had time tocure. Note: When using original equipment fasteners, adhere to manufacturers’ recommended specifications.

GRADE 8 (GRADE 10.9 METRIC) BOLTS AND GRADE C LOCKNUTS SIZE BOLT TORQUE[1] LOCKNUT TORQUE[2](S.A.E.) (ft.lbs.) (ft.lbs.)1/4 -20 10-13 7-105/16-18 18-25 15-183/8 –16 35-45 30-357/16-14 55-70 45-551/2 -13 90-110 60-809/16-12 120-150 90-1105/8 –11 180-200 150-1703/4 -10 300-350 250-2807/8 –9 400-450 350-380M10-1.5 35-45 30-35M16-2.0 180-200 150-170M20-2.5 400-450 350-380

HYDRAULIC FITTINGS, HOSE ENDS, TUBE NUTS DASH SIZE THREAD SIZE TORQUE[3] (S.A.E.) (S.A.E.) (ft.lbs.)

-4 7/16-20 9-12-6 9/16-16 21-24-8 3/4-16 35-40-10 7/8-14 55-60-12 1 1/16-12 77-82-16 1 5/16-12 110-120

[1] Torque to be applied to Grade 8 bolts.[2] Torque to be applied to Grade C locknuts.[3] Torque to be applied to S.A.E. straight thread O-Ring Boss (ORB) fittings/locknuts and 37degree flared type (J.I.C.) fittings/hose ends and tube nuts.

NOTE: Mud Hog and Equa-Trac are registered trademarks of Tuthill Transport Technologies. B

!Safety Procedures

1) READ THESE PROCEDURES COMPLETELY. Make sure you fully understand allcontrols BEFORE operating the system.

2) The safety information given does not replace safety codes, insurance needs, or federal, state,and local laws.

3) Standard safety procedures should be observed and practiced when operating or servicing theMud Hog system. CAUTION should be practiced at all times.

4) All components MUST be securely and correctly mounted and connected BEFOREoperating the system.

5) In the event of any malfunction in the system, the Mud Hog should be shut “OFF”immediately and not restarted until the machine is correctly serviced.

6) When raising the machine, make sure that a dependable left device is used to adequatecapacity. Use suitable jack stands to support machine. Apply “PARK” or “EMERGENCYBRAKE” and block the front wheels to prevent the machine from rolling.

7) DANGER – Escaping fluid under pressure can have sufficient force to penetrate the skin,causing serious personal injury. Fluid escaping from a small hole can be almost invisible.Use a piece of cardboard or wood rather than your hands, to search for suspected leaks.

8) DO NOT extend the axles beyond the distance stated in the instructions.

9) DO NOT alter axles in ANY manner – alterations may reduce strength resulting in possibledamage or personal injury.

10) DO NOT alter any component of the Mud Hog system. Unauthorized modification mayresult in possible damage or personal injury.

11) DANGER – Failure to follow proper procedures when mounting a tire on a wheel or rim canproduce an explosion which may result in serious bodily injury. DO NOT attempt to mount atire unless you have the proper equipment and experience to perform the job safely.

12) WARNING – Decals MUST be obeyed completely to prevent possible damage or injury. Ifdecals are destroyed, lost damaged or cannot be read, replace immediately.

13) WARNING – Any damaged hi-pressure hose should be replaced with a comparable 4-wirebraid hose (DO NOT use a 2 or 3-wire braid hose).

A

MUD-HOG SYSTEM IDENTIFICATION

This manual covers both System II and System III MUD-HOG kits. The difference betweenSys.II and Sys.III is wheel motor displacement. The Sys.II wheel motors have 57 cubicinches and the Sys.III wheel motors are two speed motors with displacements of 38 and 76cubic inches. The number of lug bolts on the wheel motors will tell you which system yourMUD-HOG kit is. A Sys.II has 8 lug bolts per motor and a Sys.III has 10 lug bolts permotor. Several sections in this manual will refer to either Sys.II or Sys.III. Sections that donot specify one or the other system are for both systems.

REMOVAL OF EXISTING COMPONENTS

Park the cotton picker in a clean working area. Apply the “PARK” or “EMERGENCYBRAKE” and block the front wheels to prevent the machine from rolling. Using asuitable lift device, jack or hoist, raise the rear of the machine so that the rear tires areseveral inches off the ground. Place the jack stands securely under the rear axle of themachine.

Disconnect and remove the steering tie rod assembly from the wheel ends. Remove theouter tie rod from the tie rod assembly. Save the slotted hex nuts and cotter pins and tierod mounting hardware for later use.

Remove stub axle mounting bolts. Remove stub axles and save mounting bolts for instal-lation of Mud Hog stub axles. NOTE: Always refer to Case International SERVICEMANUAL when disassembling any CI components.

TREAD CENTER BOLT LOCATION82" 1 & 386" 2 & 490" 3 & 594" 4 & 6102" 7 & 9106" 8 & 10110" 9 & 11

Figure 14

5

2-SPEED VALVE

Figure 2

SPACER, BOLT & NUT OUTER TIE ROD

GROUND WIRE

BULKHEAD TEE

VALVE SHIELDEQUA-TRAC II VALVE

WHEEL DRIVE

INSTALLING MUD HOG COMPONENTS

See Figure 1. to determine which set of holes in stub axle to use for your desired tread center.Slide Mud Hog stub axle and wheel drive assemblies into axle center section. CAUTION: Wheeldrive assemblies are extremely heavy. Use a lift device of adequate capacity. Install an originalmounting bolt through the OUTER hole on each side of the center section and secure usingoriginal fasteners. Install left and right hose guide brackets on center section using the suppliedM24 x 220 mm bolts through the larger of the two holes on the brackets and remaining holes onthe center section. Install brackets so that the single small holes are closest to the pivot of theaxle center section. Secure using original mounting nuts. Torque bolts to 400 ft-lbs. NOTE: AfterMud Hog is completely installed, the machine should be road tested and the axle bolts should beretorqued to 400 ft-lbs. See Figure 2.

Install supplied outer tie rod onto steering assembly. Use original jam nut. Slide original inner tierod into outer tie rod. Install supplied spacers, 3/8 x 2 1/2 bolts and 3/8 locknuts. Do not torque atthis time. Re-install tie rod ends in tapered holes in the tie rod mounting ears on the wheel driveassemblies. Use the original slotted hex nuts and cotter pins to secure. Torque nuts to originalspecification and install cotter pins. See Figure 2.

MOUNTING 2-SPEED VALVE

Mount displacement control valve onto valve mounting bracket using supplied 3/8 x 1 1/4 bolts andlockwashers. Put ground wire with 3/8 ring terminal onto one of the bolts (run wire around backside of valve bracket to prevent stalks from breaking wire). Torque bolts to specification. SeeFigure 2. NOTE: 2-speed valve is only included in SYS. III units.

12 ORB-M X 12 JIC-M 90' ELBOW, REVERSE 12ORB-M X 12 JIC-M 90' ELBOW LONG, FORWARD

MOUNTING EQUA-TRAC II VALVE

Install supplied long and short elbows (12 ORB-M x 12 JIC-M) into E-T II valve as shown inFigure 3. Do NOT tighten at this time.

Mount Equa-Trac II (E-T II) valve and valve shield on valve mounting bracket using sup-plied 3/8 x 1 1/2" bolts and lockwashers (make sure ground wire from displacementcontrol valve is between shield and bracket to protect it from plants - Sys.III only).Torque bolts to specification. Install bulkhead tee onto upright plate on valve bracket.Install E-T II valve, shield and bracket assembly on hose guide brackets using supplied 3/8 x 1 1/2" bolts and locknuts. Torque bolts to specification. See Figure 2.

Figure 3

6

Figure 4 FIGURE 4A

Bottom

MOUNTING OSCILLATION STOPS AND HOSE GUIDE BRACKET

If the Mud-Hog axle is being installed at 90" tread center or narrower, oscillation stopsmust be installed to prevent the tires from hitting the frame or plant shields and damagingthem. Install two provided oscillation stops (See Figure 4A) by removing existing oscilla-tion stops and four bolts from each side of rear axle bolster and replace with supplied M16x 80 mm bolts and hardened washers. Position oscillation stops such that bottom sectionof stop extends down between ribs on center section and hits on flat part of center sectionwhen oscillated.

Install the hose guide bracket on the right side of the machine using one of the oscillationstop mounting bolts. Torque to specification. See Figure 4.

MOUNTING MANIFOLD ADAPTER BLOCK

NOTE: The hydrostatic system oil may be drained at this time. Many of the followingprocedures require removal and replacement of various hydraulic fittings and connectors inthe hydrostatic system. Oil within the system will leak from these connections as theprocedures are performed. Refer to CI specifications and recommended procedures forservicing the hydrostatic system. Always keep in mind cleanliness and safety precautions.

Install supplied straight adapters (12 ORB-M x 12 JIC-M) into ports of manifold adapterblock. See Figure 5.

Remove hoses with split flange connectors from the hydrostatic pump. Replace originalbolts with supplied 7/16 x 3 1/4 bolts. Mount supplied manifold adapter blocks in betweenpump and split flange connectors. Mount blocks with adapters facing front of machinesuch that a hose can be connected. Make sure that the o-rings do not slip out of place.Torque bolts to specification.

Figure 5

7

CONNECTING AND ROUTING HYDRAULIC HOSES

IMPORTANT: Torque hose ends to specification only after both ends are connected.When tightening hose ends do NOT allow hoses to twist. Twisting the hose contributes tohose failure. Over-tightening can damage fittings. Refer to torque specifications at thebeginning of this manual.

A. EQUA-TRAC II VALVE TO WHEEL DRIVES

82-94" TREAD CENTERS, SYS.II:

Match together the 45 degree end of the 57" drain hose with the small 3/8 straight end ofone of the 52" flush hoses and two 50" high pressure hoses. Slide a 36" long cordurasleeve over these hoses. Slide hoses thorough the hose guide on the right hand side ofthe rear axle. Match remaining similar hoses and cordura and slide through left hand hoseguide. The 45 degree ends go toward the wheel motors. NOTE: The drain hose for theleft hand side is 50" long.

82-94" TREAD CENTERS, SYS.III:

Match together the 45 degree end of the 57" drain hose with two of the 50" high pressurehoses. Slide a large diameter 36" cordura sleeve over these hoses. Match the 3/8 straightend of one 52" flush hose with the 90 degree end of one 56" 2-speed hose. Slide a smalldiameter 36" cordura sleeve over these hoses. Matching together the 45 degree end inone bundle and the 90 degree end in the other bundle, slide sleeved hoses through righthand hose guide. Match remaining hoses similarly and slide through left hand hose guide.The 45 degree and 90 degree ends go toward the wheel motors. NOTE: The drain hoseon the left hand side is 50" long.

102-110" TREAD CENTERS, SYS.II:

Match together the 45 degree end of the 67" drain hose with the small 3/8 straight end ofone of the 59" flush hoses and two 56" high pressure hoses. Slide a 48" long cordurasleeve over these hoses. Slide hoses through the hose guide on the right hand side of therear axle. Match remaining similar hoses and cordura and slide through left hand hoseguide. The 45 degree ends go toward the wheel motors. NOTE: The drain hose for theleft hand side is 61" long.

102-110" TREAD CENTERS, SYS. III:

Match together the 45 degree end of the 67" drain hose with two of the 56" high pressurehoses. Slide a large diameter 48" cordura sleeve over these hoses. Match the 3/8 straightend of one 59" flush hose with the 90 degree end of one 65" 2-speed hose. Slide a smalldiameter 48" cordura sleeve over these hoses. Matching together the 45 degree end inone bundle and the 90 degree end in the other bundle, slide sleeved hoses through righthand hose guide. Match remaining hoses similarly and slide through left hand hose guide.The 45 degree and 90 degree ends go toward the wheel motors. NOTE: The drain hoseon the left hand side is 61" long.

8

HOSE ENDSMOTORS VALVES

A - FORWARD HIGH PRESSURE 1/2" STR. 1/2" STR.B - REVERSE HIGH PRESSURE 1/2" STR. 1/2" STR.C - CASE DRAIN 1/2" 45 DEG. 1/2" STR.D - FLUSH 3/8" STR. 1/2" STR.

Figure 6A

9

WHEEL MOTOR CONNECTIONS

Connect hoses as shown in Figure 6A for Sys.II. Connect hoses as shown in Figure 6B forSys.III. NOTE: On Sys.III units the forward and reverse connections are opposite thenormal positions on the R.H. motor. The wheel motors will have an "A" and a "R" cast intothe motor housing by the high pressure ports. The "A" port is for forward and the "R" portis for reverse.

HOSE ENDSMOTORS VALVES

A - FORWARD HIGH PRESSURE 1/2" STR. 1/2" STR.B - REVERSE HIGH PRESSURE 1/2" STR. 1/2" STR.C - CASE DRAIN 1/2" 45 DEG. 1/2" STR.D - FLUSH 3/8" STR. 1/2" STR.E - 2-SPEED 1/4" 90 DEG. 1/4" STR.

Figure 6B

10

VALVE CONNECTIONS

Connect hoses to valve(s) and bulkhead tee as shown in Figures 6A & 6B. NOTE: Con-nect hoses to similar ports. i.e. reverse port, B, on wheel motor to reverse port, B, onvalve. Do NOT cross hoses to dis-similar ports. Connecting high pressure hoses to drainor flush ports can cause damage to your machine. Connecting forward to reverse willcause wheel motor to turn backwards.

Using one of the 18" hoses, connect the top elbow (stampedT on 2-speed valve) to reducer at E-T II valve drain fittings,C. Using the other 18" hose, connect the rear elbow(stamped P) to 1/4" tee on E-T II valve. See Figure 7.NOTE: Only in SYS.III units.

Connect 90 degree end of the 190" long hose to the drainfitting, C, on valve. Connect 90 degree end of 124" hose tobulkhead tee, D. See Figures 6A & 6B.

Torque all hose ends and fittings at E-T II valve and wheelmotors to specification. Turn wheel drives from stop to stop.Check that hoses do NOT kink twist or bind. Make any necessary adjustments to fittings.

Figure 7B. EQUA-TRAC II VALVE TO HYDROSTATIC DRIVE UNIT

Match together the straight ends of the 145" (3/4"ID) hoses. Slide two supplied largediameter 48" long cordura sleeves over these hoses. Match straight end of the 124" flushhose with the straight end of the 190" drain hose. Slide the remaining two large diameter48" long cordura sleeves over these hoses.

Route sleeved hoses along right-hand side of the machine through the rear hose guideinstalled earlier. Route the straight ends of the 145" hoses and the 90 degree ends of the124" and 190" hoses toward the valve. NOTE: Position cordura sleeves at points of con-tact to prevent hose abrasion.

Connect the 90 degree ends of the 145" long hoses to the fittings in the manifold adapterblock.

Connect the straight end of the 145" hose that is connected to the lower (forward) fitting onthe manifold adapter block to the long elbow on the E-T II valve. Connect the straight endof the 145" hose that is connected to the upper (reverse) fitting on the manifold adapterblock to the short elbow on the E-T II valve. See Figure 3.

Secure hoses using two supplied large coated clamps to secure hoses to the engine mountframe with two supplied 5/16 x 1 bolts and locknuts in slotted holes.

Be sure that the hoses are routed smoothly and not twisted. Torque all hose ends andclamp bolts to specification.

11

FLUSH TEE

HOSE FROM COOLER

FLUSH HOSE CONNECTION

ADAPTER

CHECK VALVE

CLAMP

Right Hand Side of Machine

Figure 8

12

C. MOTOR FLUSH CONNECTION

Splice existing hose from cooler and install flush tee, check valve, adapter, and clamps asshown in Fig. 8. Connect blank end of 124" hose to flush tee. Fasten with hose clamp.Note: Arrow direction on check valve should point from flush tee to adapter. Installingcheck valve backwards will blow the hoses apart.

13

Supplied ElbowExisting Elbow

Drain Hose Connection

Figure 8A

D. CASE DRAIN CONNECTION

FOR 2055 ONLYReplace existing elbow in rear filter on left hand side of machine near reservoir with supplieddrain elbow. See Figure 8A. Connect straight end of 190" hose to elbow.

FOR 2155 & 2555 ONLYSome machines may already have an elbow with an 08 ORB plug in it. In this case, removeplug and install supplied 08 ORB x 08 JIC elbow. See Figure 8B. If the existing elbow doesnot have a plug, then replace it with supplied 20 ORB-M x 16 ORB-F reducer and supplieddrain elbow. See Figure 8C. Connect straight end of 190" hose to elbow.

14

Figure 8C

Existing Elbow

Reducer

Drain Hose Connection

Supplied Elbow

08 ORB PlugSupplied Elbow

Drain Hose Connection

Existing Elbow

Figure 8B

MOUNTING OF ELECTRICAL COMPONENTS

FOR 2055 ONLYRemove access panel to gear shift lever compartment outside of cab, fuse #16 should beremoved before hooking up wobble switch. One wire is hot at all times. NOTE: Fuse #2should be pulled for models early than 1994. Remove cover panel surrounding gear shiftlever in left-hand corner of cab. Install wobble switch using provided #6-32 x 1 1/4 screwsand nuts. Use provided #10 external lock washers over large existing holes. The wobbleswitch is mounted so that its switch extension wire is activated by shifting the gear selec-tion lever. See Figure 9. NOTE: Switch should be mounted such that it is activated in 3rdgear only. Locate one red and one blue wire with forked terminals in wiring harness andconnect to common and normally closed terminals on wobble switch.

Remove access panel to right-hand console panel. Install supplied rocker switch in right-hand console. There should be a knock-out in the console that the rocker switch will fitinto. Locate wiring harness with one red and one white wire.

15

Figure 9

16

FOR 2055 ONLYFor SYS.II units plug wiring harness into rocker switch.

For SYS.III units, use two supplied 3" wires. Connect the blue wire in the wiring harness(position # 2) to spade on rocker labeled # 2. See Figure 10. Connect the blue wire (posi-tion #3) to spade on rocker labeled # 3. Using supplied wires and female connector,connect spade in rocker labeled # 1 to wire on 2-speed displacement valve with maleconnector. Route wire from cab back to rear axle. Cut off any excess wire. NOTE: HI onrocker means high torque (low speed). LO on rocker means low torque (high speed).

WIRINGHARNESS

2-SPEEDROCKERSWITCH

Figure 10

NOTE: For 1992 model cotton pickers, refer to the service bulletin included at the begin-ning of this manual. The wiring harness incorrectly connects the rocker to an unswitchedpower source. This will allow the Mud-Hog solenoid on the Equa-Trac II valve to remainhot when the Mud Hog rocker switch is left on and the ignition key is off. This can resultin your battery being "drained".

FOR 2155 & 2555 ONLYRemove cover panel surrounding gear shift lever. Fuse #16 should be removed before hook-ing up lockout switch. Install 3rd gear lockout switch using provided #4-40 x 3/4 screws, nuts,& washers. The switch is mounted so that the switch extension wire is activated by shifting thegear selection lever. See figure 11. NOTE: Switch should be mounted so that it is activatedin 3rd gear only. Locate on red and one blue wire in wiring harness and connect to commonand normally closed terminals on switch.NOTE: Some machines may already have 3rd gear lockout switch installed. The red & bluewires may still need to be connected.

Remove access panel to right-hand console panel. Install supplied rocker switch into knock-out in console panel.

For System II units: Plug wiring harness into supplied rocker switch.

For System III units: Refer to the following directions to modify the wiring harnesses to accept a 3-position rocker switch for the 2-speed Mud Hog. NOTE: Some machines may already have hadthis modification done at the factory.

Rocker Switch Connector:1. Using AMP removal tool, move wire in cavity 1 to cavity 3. Remove wire from cavity 5.2. Insert the AMP connectors on the supplied jumper harness into cavities 2 & 5. Cut AMP

connector off wire removed from cavity 5 and connect to 1/4 male slide of jumper har-ness using supplied 1/4 female slide.

3. Insert the AMP connector on the supplied 87" wire into cavity 6. 87" wire is taped tojumper harness.

4. Plug rocker switch connector into supplied 3-position rocker switch.

Deutsch 12 Pin Brown Connector (under jumper seat)1. Connect 87" wire from cavity 6 of rocker switch to cavity 8 (insert female Deutsch con-

nector).2. Insert male Deutsch connector on supplied 80" wire into cavity 8 (in opposite end of 12

pin connector).

Deutsch 70 Pin Connector (in right hand wall of cab)1. Connect 80" wire from cavity 8 of deutsch 2 pin brown connector to cavity 1 (or other

open cavity) and insert male Deutsch connector.2. Insert female Deutsch connector on supplied 184" wire into same cavity as above (#1) on

outside of cab.

Harness Breakout at Center of Machine1. Connect connector on 184" wire from cavity 1 of 70 pin connector to mating connector of

supplied 100" wire harness.

2-Speed Solenoid1. Connect 1/4 female slide on 100" wire harness from center harness breakout to male

connector on 2-speed solenoid.

The 3-position rocker will switch from OFF to HI to LOW (OFF- HALF DISPLACEMENT- FULLDISPLACEMENT). See figure 12.

17

Figure 11

18

Switch Extension Wire

3rd Gear LockoutSwitch

Red WireBlue Wire

19

Right Wall of Cab

Jumper Harness

2

4

6

8

1

3

5

7

Rocker Switch Connector

Move

Deutsch 70 Pin Connector

White Wire184" Wire

Figure 12

ALL MACHINESFor System II units:Locate the center wiring harness breakout on right-hand side of machine near the engine.Connect the supplied wire to the white wire in harness. Connect the ring terminal end ofsupplied wire to the threaded terminal post on the solenoid valve at the Equa-Trac II valve.Secure with provided nut (already on terminal post).For System III units:Locate the center wiring harness breakout on the right-hand side of the machine. Connectthe black wire in the supplied wiring harness to the white wire in the harness on the ma-chine. Connect the ring terminal end of the supplied wire to the threaded terminal post onthe solenoid valve of the Equa-Trac II valve. Secure with the provided nut (already onterminal post.

Check wiring. Turn ignition switch "ON" and "OFF". Listen for a soft "clicking" sound atthe solenoid valve(s) to insure proper wiring function. Use the provided tie straps asnecessary to secure the wire to the sleeved hoses alongside the machine clear of movingparts. Re-attach console panels and secure with original fasteners.

SeatDeutsch Female Deutsch Male

8 8

1/4 Male1/4 Female

Wire Removed From Cavity 5

87" Wire

Deutsch Male

1

Deutsch Female

1

80" Wire

Back Wall of Cab

Center Harness Breakout

Terminal & Body

Terminal & BodyTerminal & Body

Black Wire

Ring Terminal (Connect to post on Equa-Trac II Valve)Black Wire

Connect to 2-Speed Solenoid100" Wire

1/4 Female Slide

MOUNTING WHEELS AND SETTING TOE-IN

Mount the wheels onto the wheel motor hub flanges with the center of the wheel in-board of thewheel motor flange. NOTE: Installing the wheels “dished-out” with the center of the wheeloutside of the mounting flange on the motors will VOID your warranty. Install the lug nuts andtorque to proper specification. NOTE: Older axles, made in 2002 or earlier have a 2-piece nut.The torque specification for this type of nut is 369 ft.lbs. During 2002, the style of nut changedto a 1-piece nut and the torque specification for this type of nut is 442 ft.lbs. NOTE: Check tirepressure.

Mark center of each tire tread on the front and rear of both tires at the same height. Measuredistance (A) between the two marks on the rear of the tires. Measure distance (B) betweenmarks on the front of the tires. (B) should be 1/8 to 3/8" less than (A). Remove bolts from tierod tubes. Loosen clamps and jam nuts. Rotate tubes to lengthen or shorten tie rods. Adjusttoe-in to 1/8 to 3/8". Replace bolts and tighten clamps and jam nuts.

20

PRE-START PROCEDURES

Locate steering stop bolts on the top of each stub axle and wheel drive assembly. Loosen jamnuts and screw stop bolts completely in. Turn steering wheel to the right until tie rod ear hitsstop bolt. Check tires for clearance during oscillation of axle. If there is interference, adjuststop bolt out until interference is eliminated. Turn steering wheel to the left until tie rod ear hitsstop bolt. Check tires for interference and adjust accordingly. Return wheels to a straightahead position.

Check that all bolts, nuts and hydraulic connections are torqued to specification. See torquespecifications at the beginning of the manual. Check that all hoses and wires are properlyrouted, free and clear of moving parts and secured properly.

Fill hydrostatic reservoir. Follow CI specifications and recommendations concerning hydro-static fluid and the servicing of filters.

Road test machine. Go over some bumps. Retorque axle mounting bolts to 400 ft-lbs.

SEE START-UP PROCEDURE AT END OF TROUBLESHOOTING MANUAL

4WD Mud Hog® Vinyl Decal Application Instructions To apply your decal, please follow the instructions below:

1. Clean area above rear wheel on ladder side of machine to remove dirt and grime.

2. Without removing the paper backing, position decal on surface exactly where you want it.

3. Once the decal is in position, place a piece of masking tape along the top edge to

hold the decal in place. 4. The decal should be sitting on the surface like a flap. Lift up the decal and

remove the paper backing.

5. With the backing paper completely removed from the decal & transfer tape, gently lower the decal with the transfer tape back down to the surface and rub it down lightly with your hand.

6. The transfer tape should still be on the side of the decal facing you. This allows

you to rub the decal without scratching or damaging the decal. Take a squeegee or credit card and firmly rub the transfer tape and thus the decal until it is firmly adhered to the surface.

7. Finally, peel off the transfer tape and masking tape gently. The decal will adhere

to the surface much more aggressively than the transfer tape. The transfer tape should lift easily leaving behind no sticky residue.

8. Your decal installation is complete. If there are bubbles present under the decal

that cannot be removed by working them to edge, a small needle or pin can be used to puncture the bubble and remove the air. A small pin hole will not be seen after the air bubble has been worked out.

24 MONTH LIMITED WARRANTYTuthill Transport Technologies (“Tuthill”) warrants Mud Hog drive systems and components to be free from defects in materialand workmanship under normal use and service for 24 months from the date of shipment from Tuthill.

Normal use and service means that the product will be installed, operated, inspected and maintained in accordance with theapplicable Mud Hog manual or instructions and any applicable vehicle manufacturer’s manual or instructions.

THE ABOVE WARRANTY IS EXCLUSIVE. TUTHILL MAKES NO OTHER REPRESENTATIONS OR WARRANTIES,EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITYOR FITNESS FOR ANY PARTICULAR PURPOSE.

No agent, distributor, dealer or employee of Tuthill has authority to extend the scope of this warranty. This warranty applies onlyto products which are sold and used only in the United States and Canada.

[Tuthill does not itself warrant components which bear the name or trademark of another manufacturer. [Such componentsinclude but or not limited to …] Any warranty or remedy for such parts is limited to the extent of any warranty provided by themanufacturer to Tuthill.]

No warranty applies in the event of replacement of parts with parts not obtained from or approved by Tuthill which do not meetTuthill quality and performance specifications, improper installation, maintenance, repair, misuse or abuse, or unauthorizedalteration or modification.

Tuthill reserves the right to make changes and improvements in design or specifications without notice and without obligation toprovide or to substitute new design modifications for those Mud Hog systems or components already in service.

Tuthill will at its option refund the purchase price of, or repair or replace without charge for parts, any Mud Hog productdetermined by Tuthill to be defective in material or workmanship during the applicable warranty period. Labor allowance, ifapplicable, will be determined in accordance with Tuthill’s warranty labor rate and time allowances established from time totime. These remedies are exclusive. In no event shall Tuthill’s liability exceed the purchase price for the Mud Hog product whensold by Tuthill to the first buyer.

Tuthill shall not be liable for any incidental or consequential damage or expense resulting from any product defect, including butnot limited to loss of profits, loss of use of equipment, increased costs or other expenses.

INSTALLER AND OWNER RESPONSIBILITIES

The installer is responsible for installing the product according to Tuthill’s approved procedures, for providing a copy of Tuthill’swarranty and owner’s manual to the owner, and for advising the owner of proper use, service, and maintenance required for theproduct.

The owner is responsible for operation, inspecting and maintaining the product according to the instructions in the owner’smanual and any applicable vehicle manufacturer’s owner’s manual, and for properly instructing all operators and maintenancepersonnel.

ADJUSTMENTS

When adjustment is sought under this warranty, a claim should be made as follows:

A. Tuthill must be notified in writing promptly upon discovery of a claimed defect.

B. If the product was installed by the vehicle manufacturer (or it’s dealer), follow the manufacturer’s procedures for warrantyclaims; or

If the product was purchased from Tuthill through a distributor of Mud Hog products, have the distributor write or phone theTuthill Customer Service Department and ask for a Returned Goods Authorization Number.

C. Components requested by Tuthill must be returned freight prepaid and accompanied by a properly completed warranty claimform. Tuthill will specify the ship-to address at time of return approval.

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TUTHILLTransport Technologies

9098 West 800 South, P.O. Box 600Brookston, Indiana USA 47923Tel 219 279-2801 Fax 219 279-2390www.tuthill.com

Toll Free: 1-800-348-2474 B