Komatsu — SPECIFICATIONS

OM5021 8/00 Specifications - Section 5 Page 5-3 SPECIFICATIONS ENGINE SERVICE CAPACITIES . . . . . . . . . . . . . . Liters . U.S. Gallons Cummins . . . . . . . . . . . 193 . . . . . . (51) (Includes Lube Oil Filters) Cooling System . . . . . . . 532 . . . . (140.6) Fuel Tank . . . . . . . . . . 2120 . . . . (560.0) Transmission . . . . . . . . . 153 . . . . . (40.5) And Torque Converter Hydraulic System . . . . . . 900 . . . . . (238) (Includes Retarder Cooling) Differential . . . . . . . . . . 300 . . . . . (79.0) Final Drive (each planetary) . 120 . . . . . (31.7) Cummins . . . . . . . . . . . . . . . . . . . QSK 45 Number of Cylinders . . . . . . . . . . . . . . .

12 Operating Cycle (diesel) . . . . . . . . . . 4-Stroke Rated 1108 kW (1486 SAE Brake HP) @ 1900 rpm Flywheel . . 1048 kW ( 1406 SAE HP) @ 1900 rpm Weight (dry) . . . . . . . . . . . 5813 kg ( 12,815 lbs ) TRANSMISSION Automatic Electronic Shift Control . . . with Automatic Clutch Modulation In All Gears. HYDRAULIC SYSTEM Torque Converter . . . . . 3-Element, Single-stage, . . . . . . . . . . . . . . . . . . . . . . Two-phase Hydraulic Pumps (3) Hoist (Tandem Gear) . 805 l/min. (213 gpm) @ 18 960 kPa (2,750 psi) Steering (Piston Pump) 221 l/min. (58.5 gpm) @ 18 960 kPa (2,750 psi) Brakes (Tandem Gear) . . . 1512 l/min. (400 gpm) Lockup Clutch . . . . . . . . . . Wet, Double-disc, . . . . .

. . . . . . . . . Activated in F1–F7 gears. Transmission . . . . . 7 Forward Speeds, 1 Reverse . . . . . . . . Planetary Gear, Multiple Disc Clutch, . . . . . . Hydraulically Actuated, Force-lubricated Hoist Control Valve . . . . . . . . . . . . Spool Type Gear . . . . . . . . . . . . Km/h . . . . . MPH 1 . . . . . . . . . . . . . . . 11.0 . . . . . . 6.8 2 . . . . . . . . . . . . . . . 14.6 . . . . . . 9.1 3 . . . . . . . . . . . . . . . 19.5 . . . . . . 12.1 4 . . . . . . . . . . . . . . . 24.5 . . . . . . 15.2 5 . . . . . . . . . . . . . . . 32.6 . . . . . . 20.3 6 . . . . . . . . . . . . . . . 44.2 . . . . . . 27.5 7 . . . . . . . . . . . . . . . 58.0 . . . . . . 36.0 Rev . . . . . . . .

. . . . . . 10.6 . . . . . . 6.6 Hydraulic Cylinders Positions . . . . . . Raise, Hold, Float, and Lower Hoisting . . . . . . . . 3-Stage Telescoping Piston Steering . . . . . . . . Twin - Double Acting Piston Relief Valve Setting . . . . . . 18 960 kPa (2,750 psi) Filtration . . . . . . . . In-line Replaceable Elements Suction . . . . . . . . Single, Full Flow, 100 Mesh Hoist & Steering . . . . . . Dual, Full Flow, In-line . . . . . . . High Pressure. Beta 12 Rating = 200 Transmission . . . . . . . . . Dual, High Pressure FINAL DRIVE ASSEMBLY Final Drive . . . . . . . . . . . . Plug-in Differential . . . . . . . . . . . . . with Planetary Wheel Drive SERVICE BRAKES Actuation: . . . . . . .

. . . . . . . . . All-Hydraulic Reduction Ratios: Front . . . . . . . . . . Oil-Cooled, Multiple-Disc Rear . . . . . . . . . . . Oil-Cooled, Multiple-Disc . . Both Act as both Service and Retarder Brakes Bevel Set . . . . . . . . . . . . . . . . . . 2.647:1 Planetary Final Drive . . . . . . . . . . . . 7.235:1 Total Reduction . . . . . . . . . . . . . . 19.151:1 Retarder Brakes: Normally Applied . . . . . Manually By Operator. Automatically Actuated . . . . . . . . . . . . . . when engine speed exceeds the rated revolutions of the shift position for the transmission. Parking Brake: . . . Spring-Applied, Oil Released . Dry Caliper Disc Actuates On Rear Drive Shaft Emergency Brakes:

An emergency brake valve actuates the brakes automatically, if the hydraulic pressure drops below a pre-set value. Manual operation is also possible. ELECTRIC SYSTEM Batteries (series-parallel) . . . . 4 x 12V / 220 A. Hr. Alternator . . . . . . . . 24 Volt, 240 Ampere Output Lighting . . . . . . . . . . . . . . . . . . . . 24 Volt Starters . . . . . . . . . . . One (1) - 24 Volt Electric