komatsu america corp. - net horsepower...
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PC228USLC-2 SERIESNET HORSEPOWER
99 kW 128 HP
OPERATING WEIGHT21880 – 23715 kg
48,240 – 52,280 lb
BUCKET CAPACITY0.47 – 1.17 m3
0.62 – 1.53 yd3
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RPC228USLC-2
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PC228USLC-2 Hydraulic Excavators
Working in congested or confined areas can be a challenge. Komatsu’s PC228USLC-2Series Hydraulic Excavators have a short tailswing profile, designed specifically for work in confined areas.
By reducing tail swing, the PC228USLC-2 can work in areas where
conventional profile excavators would pose a safety risk. Perfect for
work on roadways, bridge work, urban areas, or anywhere space
is limited, the PC228USLC-2 provides you with performance and
productivity you expect from Komatsu equipment.
Comfortable cab● Komatsu’s low noise
design cab uses viscous cab mounting for reduced noise.
● Sliding convex doorfacilitates easy entrance in confined areas and reduces the danger of being damaged onroadways because the door does not protrude when open.
Wide working rangesMaximum digging height of the PC228USLC-2 is larger than that of thePC200LC-6. Raising the boom on thePC228USLC-2 to a wider angle enhancesoverall working performance. Job sitesthat require a long upper reach, such asdemolition and slope cutting also benefitfrom the increased digging and dumpingranges of the PC228USLC-2.
High mobilityLarge drawbar pull and steering force display its ability when operating on a slope.
WALK-AROUNDWALK-AROUND
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FLYWHEEL HORSEPOWER99 kW 128 HP @ 2000 rpm
OPERATING WEIGHT21880 – 23715 kg48,240 – 52,280 lb
BUCKET CAPACITY0.47 – 1.17 m30.62 – 1.53 yd3
PC228USLC-2HYDRAULIC EXCAVATOR
Small road occupied widthKomatsu’s PC228USLC-2 Series occupies a road width of 4.1 m 13'5" or less. Thisallows the machine to work on either side of the lane without having to close both sides of the road.
Safe operationThe PC228USLC-2’s round form reduces theoperator’s need to constantly check behind himfor movement, as he would with a conventionalprofile machine.
High stabilityThe PC228USLC-2 offers exceptional lifting capacity and high stability with a large counterweight that requires no additional clearance.
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Short implement swing radius:
2380 mm 7'10"—Boom raising
angle of the PC228USLC-2 is
larger than the PC200LC-6,
while front implement protrusion
is lessened.
Safe Operation With Small Tail Swing Even in Confined Areas
PC200
180° swing width: 4.1 m 13'5"
3630 mm 3630 mm 11'11"3630 mm 11'11" 2750 mm 9'0"
2380 mm 7'10"
Protrusion from track:PC228USLC-2 840 mm 2'9"PC200 2230 mm 7'4"
Protrusion from track:PC228USLC-2 140 mm 5.5"PC200 1710 mm 5'7"
1680 mm 5'6"Implementswingradius
reduced by1250 mm
4'1"
Tail swingradius
reduced by1070 mm
3'6"
Road and Bridge Work Logging Road Work
Lane Width4.5 m 14'9"
4100
mm
13'5
"
Logging road width4–5 m 13'1" to 16'5"
Short tail swing radius:
1680 mm 5'6"—Because the tail
of the PC228USLC-2 is more
compact than conventional
models, the PC228USLC-2
reduces the operator’s need
to check behind him for
movement.
PRODUCTIVITYFEATURES
PRODUCTIVITYFEATURES
PC228USLC-2HYDRAULIC EXCAVATOR
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Excellent ProductivityEngine
The PC228USLC-2 gets its exceptional power and work capacity from the
Komatsu S6D102E-1 engine. Output is 99 kW 128 HP, giving you increased
hydraulic power while improving fuel efficiency. The engine meets emissions
regulations, including CARB, EPA, EC, and noise levels have been reduced
for greater operator comfort.
Wider Working Ranges
Raising the boom on the PC228USLC-2 to a wider angle enhances
overall working performance.
Large Digging Force
The PC228USLC-2 has a large bucket digging force and arm
crowd force, facilitating digging hard rock-bed. Digging force
rating ISO and at Power Maximum function:
Power Maximum Function
This function temporarily increases digging force for added
power in tough situations.
High Stability
The PC228USLC-2 offers exceptional lifting capacity and high stability
with a large counterweight that requires no additional clearance.
PC228USLC-2
Maximum digging height 10640 mm 34'11"
Maximum digging depth 6810 mm 22'4"
Maximum digging reach 9850 mm 32'4"
PC228USLC-2 PC200LC-6
Bucket digging force 15000 kg 12700 kg33,070 lb 28,000 lb
Arm crowd force 10900 kg 10000 kg24,030 lb 22,050 lb
PC228USLC-2 PC200LC-6
Weight of 5800 kg 3750 kgcounterweight 12,790 lb 8,260 lb
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Operator’s CabMulti-Position Controls
The multi-position, pressure
proportional control levers allow
the operator to work in comfort
while maintaining precise control.
A double-slide mechanism allows
the seat and controllers to move
together or independently, allowing
the operator to position the con-
trollers for maximum productivity
and comfort.
Cab Mount
The cab rests on viscous damping
mounts to reduce vibration and noise
from the machine body. Operator
fatigue is reduced.
Noise
Komatsu’s low noise design
uses viscous cab mounts for
reduced noise.
Sliding Convex Door
The sliding convex door facilitates
easy entrance in confined areas
and reduces the danger of being
damaged on roadways because the
door does not protrude when open.
Washable Floor
The PC228USLC-2’s floor is easy to keep clean.
The gently inclined surface has a flanged floormat
and drainage holes to facilitate runoff.
The PC228USLC-2 cab interior is spacious and provides a comfortable working environment…
WORKINGENVIRONMENT
WORKINGENVIRONMENT
PC228USLC-2HYDRAULIC EXCAVATOR
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Easy MaintenanceKomatsu designed the PC228USLC-2 to have easy service access. By doing
so, routine maintenance and servicing are less likely to be skipped, which
can mean a reduction in costly downtime later on. Here are some of the
many service features found on the PC228USLC-2.
Optimum Maintenance Layout
When the engine hood is opened, it is possible to access
engine-related maintenance items such as oil filter, oil dipstick,
coolant reserve tank, fuel filter, and air cleaner.
New Hybrid Filter Element
The new hybrid filter in the hydraulic circuit extends the
element replacement interval to 500 hours and the hydraulic
oil replacement interval to 5,000 hours.
● High-performance glass-type filter is employed for 25% of the total filter area.
● Pore gradient-type paper media is used.
● The filter area is larger and has a longer life than conventional paper filtersbecause it collects dust three-dimensionally.
Large Tool Box
Large tool box provides plenty
of space. Grease pump storage
space is also provided.
Tool boxFuel drain valve
Fuel tank
Air cleaner
Radiator reserve tank
Windshield washer tank
Engine oil filter
Engine oil dipstick
Fuel filter
Engine oil filler
PTO oil filler
Swing machineryoil filler and dipstick
Hydraulic tank
Control valve
Batteries
Filter glass(1/4 of whole periphery)
Retaining materials
Paper filter ofdensity gradient type
Paper filter(Density gradient)
High-performanceglass filter
3/4
1/4
Current filter element
Paper filter
Paper filter Paper filter
Dust is also collected inside filter paper. Dust is collected on surface of filter paper.
MAINTENANCEFEATURES
MAINTENANCEFEATURES
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Excellent ReliabilityDustproof Radiator Net
The dustproof radiator net prevents dust from
entering into the radiator core and causing
engine overheating.
Wave Fin Radiator
A high cooling efficiency wave fin is used on the radiator.
Dual Filter Air Cleaner
A dual filter air cleaner is employed to
prevent dust from entering the engine.
Emergency Hammer
A hammer is provided to break cab glass
for escape in case of emergency.
Double Lock Connectors
The double lock connectors prevent electrical connections
from loosening during operation.
Metal Guard Ring
The metal guard ring protects all the hydraulic cylinders
from seizure and improves reliability.
Dustproof net
RadiatorOil cooler
Wave Fin Radiator
Dustproof Radiator Net
Safety FeaturesPump/engine room partitionprevents oil from spraying on theengine if a hydraulic hose shouldburst.
Large handrail is installed forgetting on/off machine cab safely.
Steps with no-skid sheet. Stepswith no-skid sheet provide anti-skid footing for maintenance.
Boom holding valve reduceshydraulic drift of boom.
PC228USLC-2HYDRAULIC EXCAVATOR
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ENGINE
Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu S6D102E-1Type . . . . . . . . . . . . . . . . . . . . 4-cycle, water-cooled, direct injectionAspiration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TurbochargedNumber of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 mm 4.05"Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 mm 4.76"Piston displacement. . . . . . . . . . . . . . . . . . . . . . . . . . 5.88 ltr 359 in3
Flywheel horsepower . . . . 99 kW 128 HP @ 2000 rpm (SAE J1349)Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . All-speed, mechanical
HYDRAULIC SYSTEM
Type . . . . . . . . . . . . . . . . . . . . . . HydrauMind (Hydraulic MechanicalIntelligence New Design) system.
Closed-center system with load-sensing valves and pressure-compensated valves.
Number of selectable working modes . . . . . . . . . . . . . . . . . . . . . . . 1Main pump . . . . . . . . . . . . . . . . . . . . . Variable-capacity piston pumpPumps for. . . . . . . . . . Boom, arm, bucket, swing, and travel circuitsMaximum flow. . . . . . . . . . . . . . . . . . . . . . . . . 412 ltr 109 U.S. gpmSub-pump for control circuit. . . . . . . . . . . . . . . . . . . . . . . Gear pump
Hydraulic motors:Travel . . . . . . . . . . . . . . . 2 x axial piston motor with parking brakeSwing . . . . . . . . . . 1 x axial piston motor with swing holding brake
Relief valve setting:Implement circuits . . . . . . . . . . . . . . . . . . . 325 kg/cm2 4,620 psiTravel circuits . . . . . . . . . . . . . . . . . . . . . . . 355 kg/cm2 5,050 psiSwing circuits . . . . . . . . . . . . . . . . . . . . . . . 285 kg/cm2 4,133 psiPilot circuit . . . . . . . . . . . . . . . . . . . . . . . . . . 33 kg/cm2 478 psi
Hydraulic cylinders:Number of cylinders – bore x strokeBoom. . . . . . . . . . . . . . . . . 2 – 130 mm x 1285 mm 5.1" x 50.6"Arm . . . . . . . . . . . . . . . . . . 1 – 135 mm x 1490 mm 5.3" x 58.6"Bucket . . . . . . . . . . . . . . . . 1 – 115 mm x 1120 mm 4.5" x 44.1"
SWING SYSTEM
Driven method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HydrostaticSwing reduction. . . . . . . . . . . . . . . . . . . . Planetary double reductionSwing circle lubrication . . . . . . . . . . . . . . . . . . . . . . . Grease-bathedSwing lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil disc brakeSwing speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.0 rpm
DRIVES AND BRAKES
Steering control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Two-leverDrive method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HydrostaticTravel motor . . . . . . . . . . . . . . . . . Axial piston motor, in-shoe designReduction system . . . . . . . . . . . . . . . . . . Planetary double reductionMaximum drawbar pull . . . . . . . . . . . . . . . . . . . . 20500 kg 45,195 lbMaximum travel speed: High . . . . . . . . . . . . . . . . . 5.3 km/h 3.3 mph
Low . . . . . . . . . . . . . . . . . 3.0 km/h 1.7 mphService brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic lockParking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil disc brake
UNDERCARRIAGE
Center frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X-leg frameTrack frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Box-sectionSeal of track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sealed trackTrack adjuster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HydraulicNumber of shoes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 each side Number of carrier rollers . . . . . . . . . . . . . . . . . . . . . . . . . 2 each sideNumber of track rollers . . . . . . . . . . . . . . . . . . . . . . . . . . 9 each side
COOLANT AND LUBRICANT
CAPACITY (REFILLING)
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 ltr 66 U.S. galRadiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.2 ltr 5.9 U.S. galEngine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26.3 ltr 7.0 U.S. galFinal drive, each side . . . . . . . . . . . . . . . . . . . . 4.4 ltr 1.2 U.S. galSwing drive . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 ltr 1.5 U.S. galHydraulic tank . . . . . . . . . . . . . . . . . . . . . . . . 166 ltr 43.9 U.S. gal
OPERATING WEIGHT (APPROXIMATE)
Operating weight, including 5700 mm 18'8" one-piece boom, 2900 mm 9'6" arm, SAE heaped 0.80 m3 1.05 yd3 backhoe bucket,operator, lubricant, coolant, full fuel tank, and the standard equipment.
Shoes Operating Weight Ground Pressure
600 mm 24" 22525 kg 49,660 lb 6.83 psi
700 mm 28" 22900 kg 50,485 lb 5.97 psi
800 mm 31.5" 23714 kg 52,280 lb 5.40 psi
SPECIFICATIONSSPECIFICATIONS
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PC228USLC-2HYDRAULIC EXCAVATOR
Arm 2400 mm 7'10" 2900 mm 9'6"A Overall length 8890 mm 29'2" 8890 mm 29'2"B Overall width 3080 mm 10'1"C Overall height (to top of cab) 2965 mm 9'9"D Ground clearance, counterweight 1050 mm 3'5" E Minimum ground clearance 440 mm 1'5" F Tail swing radius 1680 mm 5'6" G Length of track on ground 3640 mm 11'11" H Track length 4450 mm 14'7" I Track gauge 2380 mm 7'10" J Width of crawler 3080 mm 10'1" K Shoe width 700 mm 27.6" L Grouser height 26 mm 1" M Machine cab height 2280 mm 7'6" N Upper structure width 2995 mm 9'10" O Distance, swing center to rear end 2225 mm 7'3"
Implement offset from swing center 182 mm 7.2"
Arm 2400 mm 7'10" 2900 mm 9'6"
A Maximum digging height 10185 mm 33'5" 10640 mm 34'11"
B Maximum dumping height 7270 mm 23'10" 7720 mm 25'4"
C Maximum digging depth 6445 mm 21'2" 6810 mm 22'4"
D Maximum vertical wall digging depth 5511 mm 18'1" 5910 mm 19'5"
E Maximum digging depth of cut for 8' level 6230 mm 20'5" 6590 mm 21'7"
F Maximum digging reach 9375 mm 30'9" 9850 mm 32'4"
G Maximum digging reach at ground 9185 mm 30'2" 9670 mm 31'9"
H Minimum swing radius 2795 mm 9'2" 2380 mm 7'10"
I Maximum height at minimum swing radius 8265 mm 27'1" 8210 mm 26'11"
Bucket digging force 12800 kg 28,219 lb 12800 kg 28,219 lb
Arm crowd force 11100 kg 24,471 lb 9300 kg 20,503 lb
WORKING RANGE AND BUCKET/ARM COMBINATION
DIMENSIONS
Arm: 2400 mm 7'10" Unit: kg lbA 3.0 m 10' 4.5 m 15' 6.1 m 20' 7.6 m 25' Maximum
B Cf Cs Cf Cs Cf Cs Cf Cs Cf Cs9.1 m *4400 *4400
30' *9,700 *9,7006.1 m *5300 *5300 *4900 4400 *3400 3400
20' *11,700 *11,700 *10,800 9,700 *7,500 7,5003.0 m *7800 6450 *5960 4100 4850 2800 *3650 2500
10' *17,200 14,300 *13,100 9,000 10,700 6,200 *8,100 5,5000.0 m *6200 *6200 *9300 5750 6660 3750 4700 2650 4350 2450
0' *13,600 *13,600 *20,500 12,700 14,600 8,300 10,300 5,900 9,600 5,400–3.0 m *10350 *10350 *7600 5750 *5600 3750 *4900 3400
–10' *22,800 *22,800 *16,800 12,700 *12,100 8,300 *10,800 7,500
LIFTING CAPACITY
Equipment:● Boom: 5700 mm 18'8"● Bucket: 0.80 m3 1.05 yd3
● Shoes: 700 mm 28"Blade is off ground
A: Reach from swing centerB: Bucket hook heightC: Lifting capacityCf: Rating over frontCs: Rating over side
: Rating at maximum reach
* Load is limited by hydraulic capacity rather than tipping. Ratings are based on SAE Standard No. J1097. Rated loads do not exceed 87% of hydraulic lift capacity or 75% of tipping load.
Komatsu America International Company440 N. Fairway Dr., Vernon Hills, IL 60061
AESS500-02 ©2000 Komatsu Printed in USA SN4(10M)C DataKom 4/00 (EV-1)
www.KomatsuAmerica.com Materials and specifications are subject to change without noticeis a trademark of Komatsu Ltd. Japan
STANDARD EQUIPMENT
BACKHOE BUCKET AND ARM COMBINATION
● Air cleaner, double element with autodust evacuation
● Air conditioner/heater● Alternator, 50 A● Batteries, 110 Ah/2 x 12 V● Boom holding valve● Cab which includes: antenna, AM/FM
radio, floormat, intermittent wiper andwasher, large ceiling hatch, pull-up frontwindow, openable rear window, rearviewmirror, removable lower windshield,sliding seat with 3" seat belt, tinted safety glass
● Cooling fan, mixed flow with fan guard● Corrosion resister● Counterweight, 6200 kg 13,667 lb● Dustproof net for radiator and oil cooler● Instrument panel● Light, one front● Pump/engine room partition cover● Shoes, 700 mm 28", triple grouser● Starting motor, 5.5 kW● Travel alarm● Turbocharger exhaust manifold cover● Vandalism protection provision tabs
● Arm—2400 mm 7'10"—2900 mm 9'6"—2900 mm 9'6" with piping
● Blade assembly● Hydraulic control unit
—1 additional actuator—2 additional actuators—3 additional actuators
● Shoes, triple grouser—600 mm 24" —800 mm 31.5"
● Shoes, rubber shoe—600 mm 24"
● Track guiding guards
SOLD ONLY WITH BUCKET● Lug bushing● Play adjustment mechanism
OPTIONAL
EQUIPMENT
ArmBucket Capacity Width Outside Lip Weight Teeth 2.4 m 7'10" 2.9 m 9'6"
0.47 m3 0.62 yd3 610 mm 24" 510 kg 1,124 lb 4 � �Esco 0.55 m3 0.72 yd3 762 mm 30" 581 kg 1,281 lb 4 � �
Standard 0.77 m3 1.00 yd3 914 mm 36" 637 kg 1,404 lb 5 � �Plate 0.96 m3 1.25 yd3 1067 mm 42" 706 kg 1,556 lb 5 □ Y
1.17 m3 1.53 yd3 1219 mm 48" 750 kg 1,653 lb 5 Y X0.47 m3 0.62 yd3 610 mm 24" 494 kg 1,089 lb 4 � �
Esco 0.57 m3 0.72 yd3 762 mm 30" 546 kg 1,204 lb 4 � �Heavy-duty 0.77 m3 1.00 yd3 914 mm 36" 615 kg 1,356 lb 5 � �
Plate 0.96 m3 1.25 yd3 1067 mm 42" 667 kg 1,470 lb 5 Y X1.17 m3 1.53 yd3 1219 mm 48" 694 kg 1,530 lb 5 Y X
� – Used with weights up to 3,040 lb/yd3 □ – Used with weights up to 2,520 lb/yd3 Y – Used with weights up to 2,020 lb/yd3 X – Not useable
Arm: 2900 mm 9'6" Unit: kg lbA 3.0 m 10' 4.5 m 15' 6.1 m 20' 7.6 m 25' Maximum
B Cf Cs Cf Cs Cf Cs Cf Cs Cf Cs3.0 m *11200 *11200 *7200 *6700 5600 4200 4750 2900 *2250 *2250
10' *24,700 *24,700 *15,900 *14,800 12,400 9,300 10,500 6,400 *5,000 *5,0000.0 m *6700 *6700 9250 5900 6700 3800 4700 2700 2900 2200
0' *14,800 *14,800 20,400 13,000 14,800 8,400 10,400 5,900 6,400 4,900–3.0 m *11450 *11450 *8100 5800 5900 3700 *4600 2950
–10' *25,200 *25,200 *17,900 12,700 13,000 8,200 *10,200 6,500
Equipment:● Boom: 5700 mm 18'8"● Bucket: 0.80 m3 1.05 yd3
● Shoes: 700 mm 28"Blade is off ground
A: Reach from swing centerB: Bucket hook heightC: Lifting capacityCf: Rating over frontCs: Rating over side
: Rating at maximum reach
* Load is limited by hydraulic capacity rather than tipping. Ratings are based on SAE Standard No. J1097. Rated loads do not exceed 87% of hydraulic lift capacity or 75% of tipping load.