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Electronic Monitoring
System

An electronic monitoring
system prevents minor
problems from developing into
major ones.  All meters and
gauges are controlled by a
microcomputer, which provides
a wide indication range for an easier, more
precise reading.

Low-Noise Design

For smoother riding comfort, power train components and

hydraulic control valves are mounted to the frame with

rubber pads to soften vibration and shut out noise. 

Since the D65 employs joysticks, the walk-through 

operator compartment is uncluttered for smooth entry 

and exit. An adjustable seat with backrest is standard

equipment.

Three-stage height adjustable armrests

Three-stage height adjustable arm rests and relocated fuel

control lever provide

comfortable operation and

increased leg space.

Hexagonal Pressurized Cab (Optional)

Air filters and a higher internal air pressure combine to

prevent external dust from entering the cab. In addition, the

cab’s hexagonal design provides excellent front, side, and

rear visibility.  The viscous damper cab suspension softens

shocks for operator comfort and extends component life.

Easy-to-Operate Work Equipment Control Lever

With the Closed-center Load Sensing (CLSS) hydraulic
system, blade lever stroke is directly proportional with blade
speed, regardless of the load and travel speed. This results
in superb, fine controllability.

Benefits of CLSS

More precise and responsive operation due to the
pressure compensation valve.

Reduced fuel consumption by discharging only the
required amount of oil from the pump.

The work equipment  moves smoothly for operations such
as side-cutting even when priority is given to steering.

4

All steering, direction, and speed changes

are made by a left-hand single joystick control. If the operator wants to 

move the machine forward and to the left, he simply moves the joystick forward and to the left. If he desires a gear change, 

he merely twists his wrist. The machine responds to the movement of the lever providing the operator with the feeling of 

natural control with Komatsu’s joystick. 

Cylinder

Unload
valve

Tank

Cylinder

Unload
valve

Tank

PPC

PPC

CLSS for D65E-12 and D65P-12

Steering 

Functions

Forward and 

reverse

Right and left 

steering

First, to second, 

to third shifting

Left Hand

Right Hand

Blade 

Functions

Lifting and 

lowering

Tilting

O

PERATOR

S

C

OMPARTMENT

O

PERATOR

S

C

OMPARTMENT

Photo may include optional equipment.

Summary of Contents for D65E-12 -

Page 1: ... Photo may include optional equipment FLYWHEEL HORSEPOWER 1950 rpm D65E 12 135 kW 180 HP D65P 12 142 KW 190 HP OPERATING WEIGHT D65E 12 19125 kg 42 160 lb D65P 12 20185 kg 44 500 lb WITH STEERING CLUTCH BRAKE SYSTEM ...

Page 2: ...Straight Tilt dozer for D65P combined the highest power in its class with outstanding productivity Komatsu Torqflow transmission offers single lever control of speed 3 forward and 3 reverse and directional changes Left hand joystick controls all tractor motion Right hand joystick controls all blade movements D65E 12 D65P 12 Crawler Dozer Blade tilt lines completely protected Forward mounted pivot ...

Page 3: ...E P CRAWLER DOZER 3 Electronic Monitoring System prevents minor problems from developing into major ones Optional hexagonal low noise cab with viscous damping mounts provides unsurpassed operator comfort and visibility Wet multiple disc brakes eliminates brake band adjustments for maintenance free operation Modular power train for increased serviceability and durability Bolt on segmented sprocket ...

Page 4: ...life Easy to Operate Work Equipment Control Lever With the Closed center Load Sensing CLSS hydraulic system blade lever stroke is directly proportional with blade speed regardless of the load and travel speed This results in superb fine controllability Benefits of CLSS More precise and responsive operation due to the pressure compensation valve Reduced fuel consumption by discharging only the requ...

Page 5: ...LER DOZER RELIABILITY FEATURES RELIABILITY FEATURES 5 Power train unit Engine Final drive Pivot shaft Shoe Track frame Hull frame Tough Undercarriage Large diameter bushings increased track link heights and improved oil seals help to increase undercarriage durability Serviceability has also been improved with the addition of remote greasing of the equalizer bar center pin Low Drive and Long Track ...

Page 6: ...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...

Page 7: ...t cab COOLANT AND LUBRICANT CAPACITY REFILLING Coolant 52 ltr 13 7 U S gal Fuel tank 406 ltr 107 3 U S gal Engine oil 38 ltr 10 0 U S gal Damper 1 7 ltr 0 4 U S gal Transmission bevel gear and steering system 48 ltr 12 7 U S gal Final drive each side D65E 12 24 ltr 6 3 U S gal D65P 12 27 ltr 7 1 U S gal OPERATING WEIGHT APPROXIMATE Tractor weight Including rated capacity of lubricant coolant full ...

Page 8: ...s Blade lift Raise hold lower and float Blade tilt Right hold and left Spool control valve for angle dozer Positions Blade lift Raise hold lower and float Additional control valve for multi shank ripper Positions Ripper lift Raise hold and lower Hydraulic oil capacity refilling Semi U tilt dozer 55 0 ltr 14 5 U S gal Straight tilt dozer 55 0 ltr 14 5 U S gal Angle tilt dozer 55 0 ltr 14 5 U S gal ...

Page 9: ...ht 285 kg 630 lb All weather enclosed pressurized cab Dimensions Length 1765 mm 5 9 Width 1720 mm 5 8 Height 1625 mm 5 4 Height from floor to ceiling 1515 mm 5 0 Additional ground pressure D65E 1 0 kPa 0 010 kgf cm2 0 14 psi D65P 0 6 kPa 0 006 kgf cm2 0 09 psi MULTI SHANK RIPPER for D65E Additional weight including hydraulic control unit 1680 kg 3 700 lb Beam length 2170 mm 7 1 Maximum digging dep...

Page 10: ...HESS143108 Printed in Japan 200305 IP AD 15 www Komatsu com Materials and specifications are subject to change without notice is a trademark of Komatsu Ltd Japan ...

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