988K XE Wheel Loader

988K XE Wheel Loader

360° Exterior View

Cat® Large Wheel Loaders are designed with durability built in, ensuring maximum availability through multiple life cycles. With optimized performance and simplified serviceability, our machines allow you to move more ...
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Engine

Engine Model
Cat® C18 ™
Rated Speed
1,700 rpm
Peak Power Speed
1,500 rpm
Engine Power - ISO 14396
580HP
Gross Power - SAE J1995
588HP
Net Power - SAE J1349
538HP
Emissions
U.S. EPA Tier 4 Final/EU Stage V
Bore
5.7in
Stroke
7.2in
Displacement
1105in³
Peak Torque - 1,200 rpm - SAE J1995
2230ft·lbf
Torque Rise
58%

Operating Specifications

Operating Weight
116362lb
Operating Weight - Standard
116362lb
Operating Weight - High Lift
119618lb
Rated Payload - Standard (Quarry Face)
12.5ton (US)
Rated Payload - Loose Material (Standard)
16ton (US)
Bucket Capacity Range
4.7-13 m3 (6.2-17 yd3)

Transmission

Transmission Type
Cat switched reluctance electric drive
Forward 1 (virtual)
4.3mile/h
Forward 2 (virtual)
7mile/h
Forward 3 (virtual)
13.8mile/h
Forward 4 (virtual)
20mile/h
Reverse 1 (virtual)
4.3mile/h
Reverse 2 (virtual)
7mile/h
Reverse 3 (virtual)
17.5mile/h

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit
EH-Positive Flow Control, Flow Sharing
Lift/Tilt System - Pump
Variable displacement piston
Maximum Flow at 1,400-1,600 rpm
153gal/min
Relief Valve Setting - Lift/Tilt
4757psi
Lift Cylinder - Bore
8.7in
Lift Cylinder - Stroke
41.3in
Tilt Cylinder - Bore
8.7in
Tilt Cylinder - Stroke
27in

Hydraulic Cycle Times

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

Hydraulic System - Steering

Steering System - Circuit
Pilot, load sensing
Steering System - Pump
Piston, variable displacement
Maximum Flow at 1,400-1,600 rpm
71.3gal/min
Steering Cut Off Pressure
4351psi
Total Steering Angle
86°
Steering Cycle Times - High Idle
3.4s
Steering Cycle Times - Low Idle
5.6s

Air Conditioning System

Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes.

Axles

Front
Fixed
Rear
Trunnion
Oscillation Angle
13°

Brakes

Brakes
ISO 3450:2011

Operator's Cab

ROPS/FOPS
ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards

Service Refill Capacities

Fuel Tank
147gal (US)
Cooling System - Jacket Water
30gal (US)
Cooling Systems - Power Train
8gal (US)
Engine Crankcase
16gal (US)
Diesel Exhaust Fluid Tank
8.7gal (US)
Transmission
16gal (US)
Differential - Final Drives - Front
49gal (US)
Differential - Final Drives - Rear
49gal (US)
Hydraulic System - Implement/Steering
126gal (US)
Note
All nonroad Tier 4 Final/Stage V diesel engines are required to use: – The machine has the flexibillity to run on either ultra-low-sulfur diesel fuel (ULSD with 15 ppm of sulfur or less). – Cat engines are compatible with the following renewable, alternat

Sound Performance - Tier 4 Final/EU Stage V - Standard

Operator Sound Level (ISO 6396)
72dB(A)
Machine Sound Level (ISO 6395)
109dB(A)
Note (1)
The operator sound pressure level was measured according to the test procedures and conditions specified in ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.
Note (2)
Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment.
Note (3)
The machine sound power level was measured according to the test procedures and conditions specified in ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed.

Dimensions (Approximate) - Standard Lift

Ground to Top of ROPS
13.8ft
Ground to Top of Exhaust Stacks
14.8ft
Ground to Top of Hood
10.9ft
Ground to Bumper Clearance
3.1ft
Rear Axle - Centerline to Bumper
10.5ft
Front Axle Centerline to Bucket Tip
14ft
Wheel Base
14.9ft
Maximum Overall Length
39.3ft
Ground to Lower Hitch Clearance
1.9ft
Ground to Center of Axles
3.2ft
Clearance at Maximum Lift
11.9ft
B-Pin Height - Maximum Lift
18ft
Reach - Maximum Lift
6.5ft
Maximum Overall Height - Bucket Raised
24.5ft
Note
Specs are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height.

Dimensions (Approximate) - High Lift

Ground to Top of ROPS
13.8ft
Ground to Top of Exhaust Stacks
14.8ft
Ground to Top of Hood
10.9ft
Ground to Bumper Clearance
3.1ft
Rear Axle - Centerline to Bumper
10.5ft
Front Axle Centerline to Bucket Tip
15.3ft
Wheel Base
14.9ft
Maximum Overall Length
40.7ft
Ground to Lower Hitch Clearance
1.9ft
Ground to Center of Axles
3.2ft
Clearance at Maximum Lift
13.3ft
B-Pin Height - Maximum Lift
19.3ft
Maximum Overall Height - Bucket Raised
25.8ft
Reach - Maximum Lift
6.8ft
Note
Specs are calculated with 6.9 m3 (9.0 yd3) rock bucket and Michelin XLDD2 with 978 mm (3.2 ft) centerline of rear axle height.

Buckets

Bucket Capacities
4.7-13 m3 (6.2-17 yd3)