CAT 988K XE Wheel Loader

Dimensions (Approximate) – High Lift

Wheel Base 14.9 ft in (4.55 m)
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.
B-Pin Height – Maximum Lift 19.3 ft in (5.89 m)
Clearance At Maximum Lift 12.7 ft in (3.88 m)
Front Axle Centerline To Bucket Tip 15.9 ft in (4.85 m)
Ground To Bumper Clearance 3.1 ft in (0.95 m)
Ground To Center Of Axles 3.2 ft in (0.98 m)
Ground To Lower Hitch Clearance 1.9 ft in (0.58 m)
Ground To Top Of Exhaust Stacks 14.8 ft in (4.52 m)
Ground To Top Of Hood 10.9 ft in (3.33 m)
Ground To Top Of ROPS 13.7 ft in (4.18 m)
Maximum Overall Height – Bucket Raised 25.8 ft in (7.87 m)
Maximum Overall Length 41.3 ft in (12.59 m)
Reach – Maximum Lift 7 ft in (2.14 m)
Rear Axle – Centerline To Bumper 10.5 ft in (3.21 m)

Dimensions (Approximate) – Standard Lift

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.
Ground To Top Of Hood 10.9 ft in (3.33 m)
B-Pin Height – Maximum Lift 18 ft in (5.49 m)
Reach – Maximum Lift 6.8 ft in (2.08 m)
Clearance At Maximum Lift 11.3 ft in (3.45 m)
Wheel Base 14.9 ft in (4.55 m)
Front Axle Centerline To Bucket Tip 14.7 ft in (4.49 m)
Ground To Top Of ROPS 13.7 ft in (4.18 m)
Ground To Bumper Clearance 3.1 ft in (0.95 m)
Maximum Overall Height – Bucket Raised 24.5 ft in (7.47 m)
Ground To Center Of Axles 3.2 ft in (0.98 m)
Rear Axle – Centerline To Bumper 10.5 ft in (3.21 m)
Ground To Lower Hitch Clearance 1.9 ft in (0.58 m)
Maximum Overall Length 40 ft in (12.2 m)
Ground To Top Of Exhaust Stacks 14.8 ft in (4.52 m)

Engine Details

Net Power 541 hp (403.5 kw)
Rated Speed 1700 rpm
Displacement 1105 cu in (18.2 L)
Torque Rise 58 %
Bore 5.7 in (144.8 mm)
Stroke 7.2 in (182.9 mm)
Emissions U.S. EPA Tier 4 Final/EU Stage IV
Net Power – Sae J1349 541 hp (403.5 kw)
Engine Model Cat C18 ACERT
Gross Power – Iso 14396 580 hp (432.6 kw)
Peak Power Speed 1,500 rpm
Peak Power Speed – 1,500 Rpm – Gross – Iso 14396 580 hp (432.6 kw)
Peak Power Speed – 1,500 Rpm – Gross – Sae J1995 588 hp (438.5 kw)
Peak Power Speed – 1,500 Rpm – Net Power – Sae J1349 541 hp (403.5 kw)
Peak Torque @ (Speed) – Sae J1995 2104 lb ft (2852.7 Nm)

Operational Specs

Operating Weight 116362 lb (52781 kg)

Transmission

Transmission Type Cat switched reluctance electric drive
Forward 1 (Virtual) 4.3 mph (7 km/h)
Forward 2 (Virtual) 7 mph (11.3 km/h)
Forward 3 (Virtual) 13.8 mph (22.3 km/h)
Forward 4 (Virtual) 20 mph (32.2 km/h)
Reverse 1 (Virtual) 4.3 mph (7 km/h)
Reverse 2 (Virtual) 7 mph (11.3 km/h)
Reverse 3 (Virtual) 17.5 mph (28.2 km/h)

Buckets

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

Axles

Front Fixed
Rear Trunnion
Oscillation Angle 13 degrees

Brakes

Brakes ISO 3450:2011

Operating Specifications

Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3)
Rated Payload – Standard (Loose Material) 35274 lb (16000 kg)
Rated Payload – High Lift (Loose Material) 35274 lb (16000 kg)
Operating Weight – Standard 116362 lb (52781 kg)
Operating Weight – High Lift 119618 lb (54257.9 kg)
Rated Payload – Standard (Face Material) 27557.8 lb (12500 kg)
Rated Payload – High Lift (Face Material) 27557.8 lb (12500 kg)

Service Refill Capacities

Fuel Tank Capacity 147 gal (556.5 L)
Diesel Exhaust Fluid Tank 8.7 gal (33 L)
Engine Crankcase 16 gal (60.6 L)
Transmission 16 gal (60.6 L)
Differential – Final Drives – Front 49 gal (185.5 L)
Differential – Final Drives – Rear 49 gal (185.5 L)
Note All non-road Tier 4 Final/Stage IV diesel engines are required to use: The machine has the flexibility to run on either ultra-low-sulfur diesel fuel (ULSD with 15 ppm of sulfur or less) or up to B20 biodiesel when feedstock meeting ASTM D7467 specifications is blended with ULSD. Cat DEO-ULS or oils that meet the Cat ECF-3, API CJ-4, and ACEA E9 specifications are required. Only use DEF that meets ISO 22241-1 standards.
Cooling System – Jacket Water 30 gal (113.6 L)
Cooling Systems – Power Train 8 gal (30.3 L)
Hydraulic System – Implement/Steering 126 gal (477 L)

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 18.2 s

Hydraulic System – Lift/Tilt

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 – Stroke 27 in (685.8 mm)
Lift Cylinder – Bore 8.7 in (221 mm)
Lift Cylinder – Stroke 41.3 in (1049.1 mm)
Tilt Cylinder – Bore 8.7 in (221 mm)
Maximum Flow At 1,400-1,600 Rpm 153 gal/min

Hydraulic System – Steering

Steering System – Circuit Pilot, load sensing
Steering System – Pump Piston, variable displacement
Steering Cut Off Pressure 4351 psi
Steering Cycle Times – Low Idle 5.6 s
Steering Cycle Times – High Idle 3.4 s
Maximum Flow At 1,400-1,600 Rpm 71.3 gal/min
Steering ISO 5010:2007

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.

Operator’S Cab

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

Sound Performance – Tier 4 Final/Stage Iv

Operator Sound Level (Iso 6396) 72 dB(A)
Machine Sound Level (Iso 6395) 109 dB(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.
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