D41E-6 INTRODUCTORY

FLYWHEEL HORSEPOWER
D41P-6 82 kW 110 HP @ 2400 rpm
BLADE CAPACITY
2.6 m3 3.4 yd3

CRAWLER DOZER

D41-6
S
SPECIFICATIONS
PECIFICATIONS

ENGINE FINAL DRIVES

Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu S6D102E-1 ● Spur gear, single-reduction final drives

Type . . . . . . . . . . . . . . . . . . . . 4-cycle, water-cooled, direct injection ● Bolt-on sprockets for easy replacement
Aspiration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turbocharged
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 mm 4.02" UNDERCARRIAGE
Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 mm 4.72"
Piston Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . 5.9 ltr 360 in3 Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rigid type
Flywheel Horsepower: Track roller frame . . . . . . . . . . . . . Box-section, high-tensile-strength
SAE J1349. . . . . . . . . . . . . . . . . . . . . 82 kW 110 HP @ 2400 rpm steel construction
Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . All-speed, mechanical Rollers and idlers . . . . . . . . . . . . . . . . Lubricated carrier/track rollers
and idlers are sealed with floating seals.
Track shoes . . . . . . . . . . . . Lubricated tracks. Single-grouser shoes.
Unique dust seals for preventing entry of contaminants
TORQFLOW TRANSMISSION
into pin-to-bushing clearances for extended service.
The unique Komatsu hydroshift transmission with planetary gears is Track tension is easily adjusted with a grease gun.
hydraulically-controlled and force-lubricated. Efficient power flow and
simplified direction and speed changes (3 forward and 3 reverse). D41E-6 D41P-6
Number of shoes (each side) 41 44
D41E-6
Grouser height 53 mm 2.1" 53 mm 2.1"
Travel Rated single grouser single grouser
Speed Forward Drawbar Pull Reverse
Shoe width (standard) 510 mm 20.1" 700 mm 27.5"
2.4 km/h 9910 kg 2.0 km/h
1st Ground contact area 25350 cm2 38430 cm2
1.5 mph 21,850 lb 1.9 mph
3,930 in2 6,000 in2
4.4 km/h 5080 kg 5.5 km/h
2nd Ground pressure 0.41 kgf/cm2 0.28 kgf/cm2
2.7 mph 11,200 lb 3.4 mph
5.9 psi 4.0 psi
7.6 km/h 2560 kg 9.4 km/h
3rd Number of track rollers 6 7
4.7 mph 5,640 lb 5.8 mph
Number of carrier rollers 1 1
Maximum drawbar pull . . . . . . . . . . . . . . . . . . . . 14740 kg 32,500 lb Track gauge 1790 mm 5'10" 1790 mm 5'10"
D41P-6
COOLANT AND LUBRICANT
Travel Rated
Speed Forward Drawbar Pull Reverse CAPACITY (REFILL)

2.4 km/h 9880 kg 3.0 km/h Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ltr 7.4 U.S. gal
1st
1.5 mph 21,780 lb 1.9 mph Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225 ltr 59.4 U.S. gal
4.4 km/h 5040 kg 5.5 km/h Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 ltr 5.8 U.S. gal
2nd
2.7 mph 11,110 lb 3.4 mph Damper case . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8 ltr 0.21 U.S. gal
7.6 km/h 2520 kg 9.4 km/h Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 ltr 5.0 U.S. gal
3rd
4.7 mph 5,560 lb 5.8 mph Bevel gear and steering clutch . . . . . . . . . . . . . 74 ltr 19.6 U.S. gal
Final drive (each side) . . . . . . . . . . . . . . . . . . . . 13 ltr 3.4 U.S. gal
Maximum drawbar pull . . . . . . . . . . . . . . . . . . . . 14700 kg 32,410 lb

OPERATING WEIGHT (APPROXIMATE)

STEERING SYSTEM
Tractor weight:
Single-lever controls for all directional movements. Simply tilt Including ROPS canopy, standard equipment, operator, rated
the lever to the left to make a left turn. Tilt it to the right to make a capacity of lubricant, coolant, and full fuel tank.
right turn. Pushing the lever forward results in forward movement,
pulling it rearward reverses the machine. Wet, single-disc steering D41E-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8380 kg 18,470 lb
clutch is hydraulically actuated and released. Wet, single-disc steer- D41P-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8950 kg 19,730 lb
ing brakes are hydraulically actuated. A PPC valve integrated into Operating weight:
the steering circuit facilitates smooth, shockless steering control. Including dozer, ROPS canopy, standard equipment, operator,
rated capacity of lubricant, coolant, and full fuel tank.
D41E-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10510 kg 23,170 lb
D41P-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11080 kg 24,430 lb
 D41-6
CRAWLER DOZER

DIMENSIONS (D41E-6 EQUIPPED WITH ROPS CANOPY AND POWER-ANGLE TILT DOZER)

1600 mm 5'3" 1830 mm 6'0"

2700 mm 8'10"

2885 mm 9'6"
2020 mm 6'8"
D41E-6

1010 mm
"
1790 mm 5'10" 2485 mm 8'2"
485 mm 645 mm 1'7"
1'7" 2745 mm 9'0" (D41P-6)
3045 mm 10'0" 2'1"
4880 mm 16'0"

Ground clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365 mm 1'2"

HYDRAULIC SYSTEM

Hydraulic control unit: Additional control valve required for ripper

Gear-type hydraulic pump with capacity (discharge flow) of 90 ltr/min
Positions:
23.8 U.S. gal/min, at rated engine rpm.
Ripper lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . Raise, hold, and lower
Relief valve setting . . . . . . . . . . . . . . . . . . . . . 210 kgf/cm2 2,990 psi
Hydraulic cylinders. . . . . . . . . . . . . . . . . Double-acting, piston type
Control valves:
Three control valves for power-angle tilt dozer Number of cylinders Bore
Blade lift 2 105 mm 4.13"
Positions:
Blade lift. . . . . . . . . . . . . . . . . . . . . . . . . Raise, hold, lower, and float Blade tilt 1 110 mm 4.33"
Blade angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . Left, hold, and right Blade angle 1 130 mm 5.12"
Blade tilt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Left, hold, and right

DOZER EQUIPMENT

The D41 uses box construction of the back plate while using high-tensile-strength steel in the moldboard to ensure extended service.
Hydraulic hoses for blade angling and tilting are covered with steel plates for protection from damage.
Power-Angle Tilt Dozer

Overall Blade Maximum Maximum Maximum tilt Blade Additional weight

length with capacity Blade lift above drop below adjustment angle Transport
width x height Dozer Hydraulic width
dozer (SAE) ground ground L.H. R.H. L.H. R.H. equipment control unit
4880 mm 2.6 m3 3045 mm x 1060 mm 1010 mm 490 mm 485 mm 645 mm 1580 kg 210 kg 2395 mm
55° 25°
16' 3.4 yd3 10' x 3'6" 3'4" 1'7" 1'7" 2'1" 3,480 lb 460 lb 7'10"
D41E
4880 mm 2.9 m3 3350 mm x 1060 mm 1010 mm 490 mm 530 mm 710 mm 1660 kg 210 kg 2485 mm
55° 25°
16' 3.8 yd3 11' x 3'6" 3'4" 1'7" 1'9" 2'4" 3,660 lb 460 lb 8'2"
4880 mm 2.6 m3 3045 mm x 1060 mm 1010 mm 490 mm 485 mm 645 mm 1580 kg 210 kg 2490 mm
55° 25°
16' 3.4 yd3 10' x 3'6" 3'4" 1'7" 1'7" 2'1" 3,480 lb 460 lb 8'2"
D41P
4880 mm 2.9 m3 3350 mm x 1060 mm 1010 mm 490 mm 530 mm 710 mm 1660 kg 210 kg 2990 mm
30° 25°
16' 3.8 yd3 11' x 3'6" 3'4" 1'7" 1'9" 2'4" 3,660 lb 460 lb 9'10"
 STANDARD EQUIPMENT

● Air cleaner, double element ● Electronic instrument panel ● Single-grouser shoes with sealed
● Alternator, 40 amp ● Engine hood and gull-wing side covers and lubricated link assembly
● Back-up alarm ● Fenders —510 mm 20.1" D41E-6
● Batteries, 2 x 12 V ● Hitch —700 mm 27.8" D41P-6
● Blower cooling fan ● Locks, filler cap, and covers ● Track roller guards, center section
● Decelerator pedal ● ROPS mounting brackets
● Dozer assembly, power-angle tilt ● Seat, suspension type with seat belt Unit must be equipped with ROPS canopy

OPTIONAL EQUIPMENT

● Air conditioner ● Heater and defroster ● Pull hook, front

● Cab ● Ripper, multi-shank ● Track roller guards, full length
● Dozer assembly ● ROPS canopy ● Vandalism protection cover for
—power-angle tilt, wide blade ● Shoes: instrument panel
● Drawbar, swing type —560 mm 22.2" D41E-6 ● Water separator
● Guarding packages —700 mm 27.8" circ. arc D41P-6

ROPS* Steel Cab Multi-shank Ripper (D41E-6)

Canopy for Steel Cab: All-weather, enclosed-type pressurized cab, Hydraulically controlled parallelogram-type
Additional weight . . . . . . . . . . 250 kg 550 lb includes oil damper-type suspension, left ripper with 3 shanks.
Overall height . . . . . . . . . . . . 2885 mm 9'6" and right, front and rear wipers, ashtray,
Additional weight (including
cigarette lighter, floormat, hot/cold box.
Canopy: hydraulic control unit) . . . . . . 250 kg 550 lb
Additional weight . . . . . . . . . . 340 kg 750 lb Additional weight . . . . . . . . . . 285 kg 630 lb Beam length . . . . . . . . . . . . . 1555 mm 5'1"
Overall height . . . . . . . . . . . . 2885 mm 9'6" Maximum lift above ground . . . 400 mm 1'4"
Roof Dimensions:
Maximum digging depth . . . . . 460 mm 1'6"
Height from floor to ceiling . . . 1515 mm 5'2"
*Meets ISO 3471, SAE J1040 APR88, and
SAE J395a ROPS standards, as well as
ISO 3449 FOPS standards.

AESS548-00 ©2000 Komatsu Printed in USA SN10(10M)C DataKom 10/00 (EV-2)

Komatsu America International Company

440 N. Fairway Dr., Vernon Hills, IL 60061

www.KomatsuAmerica.com Materials and specifications are subject to change without notice

is a trademark of Komatsu Ltd. Japan