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M
M
AINTENANCE
AINTENANCE
F
F
EATURES
EATURES
Superior Serviceability
Easy Access to Service Areas
•
Large hinged doors are standard and
provide easy access to the engine and
radiator service points. Spin-on oil filters can
be changed quickly.
•
Lubrication points for articulation joint are
remote-mounted.
•
Fuse panel is located in the operator
compartment. Circuits and
fuse sizes are clearly identified.
•
Tandem oil check point is conveniently
located at the end of the tandem.
•
Service meter is located on the left side of
the steering console, offering a clear view
from the ground.
Power Train Components
Features a modular design so you can remove
the engine, transmission or final drives
independently for quick service.
8
Message Center
The message center monitors the transmission and engine function with
computer sensors. There are six modes available with ability to scroll
through mode selections.
Maintenance-Free Oil Disc Brakes
Komatsu designs and builds multiple-disc brakes that are completely
sealed and adjustment-free. The brakes are oil bathed, hydraulically
actuated and spring-released and are located at each tandem wheel to
eliminate brake loads on the power train and to speed up servicing. A fully
hydraulic brake system eliminates all problems associated with air
systems. The large braking surface provides dependable braking capability
and long life before rebuild.
Friendly Environment
The rubber mounted engine and transmission transmit less engine noise
and vibration to the operator and extend component life.
S
S
PECIFICATIONS
PECIFICATIONS
ENGINE
Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA6D114E-2
Type . . . . . . . . . . . . . . . . . . . . Water-cooled, 4-cycle, direct injection
Aspiration . . . . . . . . . . . . . . . Turbocharged and air to air aftercooled
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 mm 4.49"
Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 mm 5.31"
Piston displacement. . . . . . . . . . . . . . . . . . . . . . . . . . 8.27 ltr 505 in
Gross horsepower
Gear 1~3 . . . . . . . . . . . . . . . . . . .
128.5 kW 172 HP@1900 rpm
Gear 4~8 . . . . . . . . . . . . . . . . . . . . . . 147 kW 197 HP@1900 rpm
Net flywheel horsepower*
Gear 1~3 . . . . . . . . . . . . . . . . . . . . . . 123 kW 165 HP@1900 rpm
Gear 4~8 . . . . . . . . . . . . . . . . . . . . . . 142 kW 190 HP@1900 rpm
Peak torque
Gear 1~3 . . . . . . . . . . . . . 732 Nm 74.6 kg.m 540 lb.ft@1400 rpm
Gear 4~8 . . . . . . . . . . . . . 926 Nm 94.4 kg.m 683 lb.ft@1400 rpm
Torque rise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 %
Fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 blade, pusher
Air cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-stage, dry-type
Electrical . . . . . . . . . . . . . . . . . . . . . . . 24 volt with 60 amp alternator
Battery . . . . . . . . . . . . . . . . 2, low maintenance plus, 12 volt, 112 Ah
* Net flywheel HP output for standard (SAE J1349) including air cleaner, alternator (not
charging), water pump, lubricating oil, fuel pump, muffler and fan.
TRANSMISSION AND
TORQUE CONVERTER
Full power shift transmission with integral free wheeling stator torque
converter and lock-up.
Speeds (at rated engine speed)
Gear
Forward
Reverse
1st
3.3 km/h
2.1 mph
4.3 km/h
2.7 mph
2nd
4.7 km/h
2.9 mph
8.8 km/h
5.5 mph
3rd
6.7 km/h
4.2 mph
19.3 km/h 12.0 mph
4th
9.7 km/h
6.0 mph
38.4 km/h 23.9 mph
5th
14.6 km/h
9.1 mph
6th
21.2 km/h 13.2 mph
7th
29.1 km/h 18.1 mph
8th
42.2 km/h 26.2 mph
TANDEM DRIVE
Oscillating welded box section . . . . . . . 580 mm x 221 mm 1'11" x 9"
Sprocket drive chain, single strand . . . . . . . . . . 31.75 mm 1.25" pitch
Side wall thickness: Inner. . . . . . . . . . . . . . . . . . . . . . . . 22 mm 0.88"
Outer . . . . . . . . . . . . . . . . . . . . . . . 19 mm 0.75"
Wheel axle spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . 1535 mm 5'0"
Tandem oscillation . . . . . . . . . . . . . . . . . . . . 13° forward, 13° reverse
GD655-3
MOTOR GRADER
FRONT AXLE
Type . . . . . . . . . . . . . . . Solid bar construction welded steel sections
Ground clearance at pivot . . . . . . . . . . . . . . . . . . . . . . . 630 mm 2'1"
Wheel lean angle, right or left . . . . . . . . . . . . . . . . . . . . . . . . . . . 20°
Oscillation, total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32°
3
REAR AXLE
Alloy steel, heat treated, full floating axle, spiral bevel gear reduction.
WHEELS, FRONT AND REAR
Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .tapered roller
Tires . . . . . . . . . . . .low pressure, tubeless, 14.00-24-10 ply rating-G2
Tire rims (demountable) . . . . . . . . . . . . . . . . . . . . . . . . .9.00 DC x 24
STEERING
Hydraulic power steering providing stopped engine steering meeting
SAE J1511.
Minimum turning radius. . . . . . . . . . . . . . . . . . . . . . . . . . 6.9 m 22' 8"
Maximum steering range, right or left . . . . . . . . . . . . . . . . . . . . . . 49°
Articulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23°
BRAKES
Service brake . . . . . . . . . . . . . . Foot operated, sealed oil disc brakes,
hydraulically actuated on four tandem wheels,
13338 cm
2
2067 in
2
total braking surface
Parking brake . . . . . . . . . . . . . . . . Manually actuated, spring applied,
hydraulically released caliper with
transmission interlock
FRAME
Section, welded unit (w x h) . . . . . . . . . 300 x 300 mm 11.8" x 11.8"
Side plate . . . . . . . . . . . . . . . . . . . . . . . . . 250 x 14 mm 9.8" x 0.55"
Vertical section modulus, front frame:
Minimum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2140 cm
Maximum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4860 cm
Linear weight per length, front frame:
Minimum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 kg/m 116 lb/ft
Maximum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 kg/m 148 lb/ft
3
131 in
3
3
297 in
3
9
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