ENGINE
Model:
D65E-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu 6D125E-2
D65P-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu S6D125E-2
Type . . . . . . . . . . . . . . . 4-stroke cycle, water-cooled, direct injection
Aspiration:
D65E-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Natural aspiration
D65P-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turbocharged
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 mm 4.92"
Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mm 5.91"
Piston displacement. . . . . . . . . . . . . . . . . . . . . . . . . 11.04 ltr 674 in
3
Net flywheel horsepower*:
D65E-12 . . . . . . . . . . . . . . . . . . . . . 135 kW 180 HP @ 1950 rpm
D65P-12 . . . . . . . . . . . . . . . . . . . . . 142 kW 190 HP @ 1950 rpm
Net maximum torque:
D65E-12. . . . . . . . . . . . 799 N•m 81.5 kg•m 589 lb ft @ 1100 rpm
D65P-12 . . . . . . . . . . . . 981 N•m 100 kg•m 723 lb ft @ 1200 rpm
Direct injection fuel system. All-speed mechanical governor. Forced
lubrication driven by gear pump. Full-flow for lube purification.
Dry-type air cleaner with automatic dust evacuator and dust
indicator. 7.5 kW/24V electrical starter motor. 35 A/24V alternator.
140 Ah/2 x 12V batteries.
* Net flywheel horsepower output for standard engine (SAE J1349)
including air cleaner, alternator (not charging), water pump, lubricating
oil pump, fuel pump, muffler, and fan.
TORQFLOW TRANSMISSION
Komatsu’s TORQFLOW transmission consists of a water-cooled,
3-element, 1-stage, 1-phase torque converter and a planetary gear,
multiple-disc clutch transmission which is hydraulically actuated and
force-lubricated for optimum heat dissipation. Joystick control of
gears (3 forward and 3 reverse) and directional steering changes.
Gearshift lock lever and neutral safety switch prevent machine
from accidental starts.
6
FINAL DRIVE
Double-reduction final drives of spur gear and planetary gears to
minimize transmission of shocks to power train components.
Segmented sprocket are bolt-on for easy in-the-field replacement.
STEERING
Joystick controls for all directional movements. Pushing the joystick
forward results in forward machine travel, while pulling it rearward
reverses the machine. Simply tilt the joystick to the left to make a
left turn. Tilt it to the right for a right turn.
Wet, multiple-disc steering clutches are hydraulically loaded and
hydraulically released. Wet, multiple-disc brakes are spring-actuated
and hydraulically released. Steering brakes also function as service
and parking brakes.
Minimum turning radius*:
D65E-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 m 10'6"
D65P-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.6 m 11'11"
*As measured by track marks on ground.
UNDERCARRIAGE
Suspension . . . . . . . . . . . . . . . . . . . . . Oscillation with equalizer bar
and forward mounted pivot shafts
Track roller frame. . . . . . . . . . . . . . . . . . . Monocoque, large section,
durable construction
Number of carrier rollers (each side) . . . . . . . . . . . . . . . . . . . . . . . . 2
Track shoes . . . . . . . . . . . . . . . Lubricated tracks. Unique dust seals
for preventing entry of foreign abrasives into
pin-to-bushing clearances for extended service.
Track tension is easily adjusted with a grease gun.
Travel speed Forward Reverse
1st 0–3.9 km/h 0–2.4 mph 0–5.0 km/h 0–3.1 mph
2nd 0–6.8 km/h 0–4.2 mph 0–8.6 km/h 0–5.3 mph
3rd 0–10.6 km/h 0–6.6 mph 0–13.4 km/h 0–8.3 mph
D65E-12
Number of track rollers (each side) 7
Number of shoes (each side) 39
Grouser height mm in 65 2.6"
Shoe width (standard) mm in 510 20.1"
Ground contact area cm
2
27285
in
2
4,230
Ground pressure kPa 55.9
(Tractor) kgf/cm
2
0.57
psi 8.11
Track gauge mm in 1880 6'2"
Length of track on ground mm ft.in 2675 8'9""
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