Catalogs >
Komatsu Construction and Mining Equipment >
Dozers D21P-8

Dozers D21P-8
6Pages

Catalog excerpts

NET HORSEPOWER 29.5 kW 40 HP @ 2450 rpm OPERATING WEIGHT D21A-8: 3940 kg 8,690 lb D21P-8: 4240 kg 9,350 lb D21A-8 D21P-8 D 21 CRAWLER DOZER Photos may include optional equipment.

Open the catalog to page 1

D21A/P-8 C R A W L E R D O Z E R WALK-AROUND Responsive Operation A single joystick on the left controls all speed and directional changes including: • 1st to 2nd • Forward and reverse • Right and left steering 1 LH A single joystick on the right controls all blade functions including: • Lifting/Digging • Angling • Tilting This left and right joystick system offers precise control and response for shorter cycle times. 2 F Float RH Down Angle N LH N 2 1 R RH Tilt N Tilt Up Easy-to-see instrument panel Ergonomically arranged meters and lamps make it easier to check the machine condition. In...

Open the catalog to page 2

C R AW L E R D O Z E R D21A/P-8 FLYWHEEL HORSEPOWER 29.5 kW 40 HP @ 2450 rpm OPERATING WEIGHT D21A-8: 3940 kg 8,690 lb D21P-8: 4240 kg 9,350 lb BLADE CAPACITY D21A-8: 0.57m3 0.75 yd3 D21P-8: 0.68m3 0.89 yd3 Efficient HYDROSHIFT transmission The D21-8 is equipped with Komatsu's unique HYDROSHIFT transmission, assuring smooth gear shifts, powerful traction and low fuel consumption. It consists of a damper and planetary gear packs. The HYDROSHIFT transmission makes two previously incompatible factors compatible: It efficiently converts engine power to traction with minimal power loss through a...

Open the catalog to page 3

D21A/P-8 C R A W L E R D O Z E R SPECIFICATIONS ENGINE Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu 4D94LE-2 Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Water-cooled, diesel Aspiration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Naturally aspirated Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 mm 3.70" Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Open the catalog to page 4

D21A/P-8 C R AW L E R D O Z E R DIMENSIONS D21A-8 1610 5'3" 1080 3'6" 1310 4'4" 890 2'11" 2450 8'0.5" 355 1'2" 590 1'11" 1785 5'10" 2315 7'7" GL 1310 4'4" 2170 7'1" 300 11.8" 1685 5'6" 39 1.5" 820 2'8" 250 9.8" 1125 3'8" 3365 11'0.5" D21P-8 2000 6'7" 1080 3'6" 1310 4'4" 1070 3'6" 2450 8'0.5" 1490 4'11" 2560 8'5" 510 20" 39 1.5" 355 1'2" 590 1'11" 1785 5'10" 2315 7'7" 820 2'8" 280 11.0" GL 1300 4'3" 1685 5'6" 3365 11'0.5" HYDRAULIC SYSTEM Control valves: Three control valves for power angle tilt dozer. Positions: Blade lift . . . . . . . . . . . . . . . . . . . . . . . . Raise, hold, lower,...

Open the catalog to page 5

STANDARD EQUIPMENT • Alternator, 12 V, 40 A • Back-up alarm • Batteries, 12 V, 64 Ah (5 hrs rate capacity) • Blower fan • Crankcase guard • Dry-type air cleaner with automatic dust evacuator and dust indicator lamp • Dry-type, interconnected steering clutches and brakes • Electric starting motor, 12 V, 2.3 kW • End track guiding guards • Hydraulic track adjusters • Hitch • Inching pedal • KOMTRAX • Lighting system (including 2 front and 1 rear lights) • Lubricated track links • Power angle tilt dozer, inside arms • Muffler • ROPS/FOPS Level 2 canopy* • Seat belt, 76 mm 3" • Suspension seat...

Open the catalog to page 6