Caterpillar 988K XE Wheel Loader

Axles

Front Fixed
Oscillation Angle 13 degrees
Rear Trunnion

Brakes

Brakes ISO 3450:2011

Bucket

Bucket Capacities 17 cu yd (13 cu m)

Engine

Bore 6 in (14 cm)
Displacement 1,105 cu in (18,108 cu cm)
Emissions U.S. EPA Tier 4 Final/EU Stage IV
Engine Model Cat C18 ACERT
Gross Power – ISO 14396 580 hp (433 kw)
Net Power 541 hp (403 kw)
Net Power – SAE J1349 541 hp (403 kw)
Peak Power Speed – 1,500 rpm – Gross – ISO 14396 580 hp (433 kw)
Peak Power Speed – 1,500 rpm – Gross – SAE J1995 588 hp (438 kw)
Peak Power Speed – 1,500 rpm – Net Power – SAE J1349 541 hp (403 kw)
Rated Speed 1700 rpm
Stroke 7 in (18 cm)
Torque Rise 58%

Hydraulic Cycle Times

Dump 2.2 seconds
Lower Float Down 3.5 seconds
Rack Back 4.5 seconds
Raise 8 seconds
Total Hydraulic Cycle Time 18.2 seconds

Hydraulic System – Lift/Tilt

Lift Cylinder – Bore 9 in (22 cm)
Lift Cylinder – Stroke 41 in (105 cm)
Lift/Tilt System – Circuit EH-Positive Flow Control, Flow Sharing
Lift/Tilt System – Pump Variable displacement piston
Relief Valve Setting – Lift/Tilt 4757 psi
Tilt Cylinder – Bore 9 in (22 cm)
Tilt Cylinder – Stroke 27 in (69 cm)

Hydraulic System – Steering

Steering Cut Off Pressure 4351 psi
Steering Cycle Times – High Idle 3.4 seconds
Steering Cycle Times – Low Idle 5.6 seconds
Steering System – Circuit Pilot, load sensing
Steering System – Pump Piston, variable displacement

Operating Specifications

Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3)
Operating Weight 116,362 lbs (52,781 kg)

Service Refill Capacities

Diesel Exhaust Fluid Tank 9 gal (33 l)
Differential – Final Drives – Front 49 gal (185 l)
Differential – Final Drives – Rear 49 gal (185 l)
Engine Crankcase 16 gal (61 l)
Fuel Tank 147 gal (556 l)
Transmission 16 gal (61 l)

Transmission

Transmission Type Cat switched reluctance electric drive
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