Caterpillar 988K Block Handler Arrangement Wheel Loader

Units

Specifications

Engine

Net Power

541hp

Rated Speed

1700rpm

Displacement

1105cu in

Torque Rise

58%

Bore

5.7in

Stroke

7.2in

Emissions

U.S. EPA Tier 4 Final/EU Stage IV, Tier 2 Equivalent

Net Power - Sae J1349

541hp

Engine Model

Cat C18 ACERT

Peak Torque - 1,200 Rpm

2104lb ft

Gross - Iso 14396

580hp

Peak Power Speed

1500 r/min

Peak Power Speed - Gross - Iso 14396

580hp

Peak Power Speed - Gross - Sae J1995

588hp

Peak Power Speed - Net Power - Sae J1349

541hp

Operational

Operating Weight

135602lb

Transmission

Transmission Type

Cat planetary power shift

Forward - 1

3.6mph

Forward - 2

4.5mph

Forward - 3

11.4mph

Forward - 4

19mph

Reverse - 1

4.1mph

Reverse - 2

7.3mph

Direct Drive - Forward 3

11.9mph

Direct Drive - Reverse 3

13.7mph

Direct Drive - Forward 4

21mph

Direct Drive - Forward 2

6.7mph

Direct Drive - Reverse 2

7.7mph

Direct Drive - Forward 1

Lock-up disabled

Direct Drive - Reverse 1

4.3mph

Reverse - 3

13mph

Axles

Front

Fixed

Rear

Trunnion

Oscillation Angle

13 degrees

Brakes

SAE J1473 OCT90, ISO 3450:1992

Service Refill Capacities

Cooling System

31.7gal

Fuel Tank

188.1gal

Crankcase

15.9gal

Diesel Exhaust Fluid Tank

8.7gal

Transmission

31.7gal

Differential - Final Drives - Front

49.1gal

Differential - Final Drives - Rear

49.1gal

Hydraulic System Factory Fill

125.5gal

Hydraulic System - Tank Only

63.4gal

Hydraulic Cycle Times

Raise

8 s

Dump

2.2 s

Lower Float Down

3.5 s

Rack Back

4.5 s

Total Hydraulic Cycle Time - Empty Bucket

18.2 s

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit

Pilot operated - EH control, flow sharing

Relief Valve Setting - Lift/Tilt

4757 psi

Cylinders, Double Acting - Lift, Bore And Stroke

235 mm 976 mm (9.3 in 38.4 in)

Cylinders, Double Acting - Tilt, Bore And Stroke

291 mm 671 mm (11.5 in 26.4 in)

Pilot System

Variable displacement piston

Lift/Tilt System

Variable displacement piston

Relief Valve Setting

551 psi

Maximum Flow At 1,400-1,860 Rpm

153 gal/min

Maximum Flow At 1,700 Rpm

13.7 gal/min

Hydraulic System - Steering

Steering System - Circuit

Pilot, load sensing

Steering System - Pump

Piston, variable displacement

Total Steering Angle

86degrees

Relief Valve Setting - Steering

4641 psi

Steering Cycle Times - Low Idle

5.6 s

Steering Cycle Times - High Idle

3.4 s

Maximum Flow

74 gal/min

Sound Performance - Standard

Interior Sound Level

71 dB(A)

Exterior Sound Level

111 dB(A)

Sound Performance - Suppression

Interior Sound Level

70 dB(A)

Exterior Sound Level

109 dB(A)