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988K XE Wheel Loader

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Product Description

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 material efficiently and safely at a lower cost per ton.
Introduced in 1963, the 988 has been the industry leader for over 50 years, built on a legacy of reliability, performance, safety, operator comfort, serviceability, and productivity. The 988K XE brings improved sustainability and maximum efficiency to this machine platform.

Specifications
Us
Metric
Engine
Net Power
541 HP
403 kW
Engine Model
Cat® C18 ™
Bore
5.7 in
145 mm
Stroke
7.2 in
183 mm
Displacement
1105 in³
18.1 l
Rated Speed
1,700 rpm
Peak Torque @ (speed) - SAE J1995
2104 ft·lbf
2852 N·m
Net Power - SAE J1349
541 HP
403 kW
Torque Rise
58%
Peak Power Speed - 1,500 rpm - Gross - ISO 14396
580 HP
432 kW
Emissions
U.S. EPA Tier 4 Final/EU Stage V
Peak Power Speed - 1,500 rpm - Gross - SAE J1995
588 HP
439 kW
Gross Power - ISO 14396
580 HP
432 kW
Peak Power Speed
1,500 rpm
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349
541 HP
403 kW
Operating Specifications
Operating Weight
116362 lb
52781 kg
Rated Payload - Standard (Quarry Face)
12.5 ton (US)
11.3 t
Rated Payload - Loose Material (Standard)
16 ton (US)
14.5 t
Bucket Capacity Range
4.7-13 m3 (6.2-17 yd3)
Transmission
Transmission Type
Cat switched reluctance electric drive
Forward 4 (virtual)
20 mile/h
32.1 km/h
Reverse 3 (virtual)
17.5 mile/h
28.2 km/h
Forward 2 (virtual)
7 mile/h
11.3 km/h
Reverse 2 (virtual)
7 mile/h
11.3 km/h
Forward 3 (virtual)
13.8 mile/h
22.2 km/h
Reverse 1 (virtual)
4.3 mile/h
7 km/h
Forward 1 (virtual)
4.3 mile/h
7 km/h
Hydraulic System - Lift/Tilt
Lift Cylinder - Bore
8.7 in
210 mm
Lift/Tilt System - Pump
Variable displacement piston
Lift/Tilt System - Circuit
EH-Positive Flow Control, Flow Sharing
Maximum Flow at 1,400-1,600 rpm
153 gal/min
580 l/min
Lift Cylinder - Stroke
41.3 in
1050 mm
Relief Valve Setting - Lift/Tilt
4757 psi
32800 kPa
Tilt Cylinder - Bore
8.7 in
269 mm
Tilt Cylinder - Stroke
27 in
685 mm
Service Refill Capacities
Fuel Tank
147 gal (US)
555 l
Transmission
16 gal (US)
60 l
Cooling System - Jacket Water
30 gal (US)
112 l
Differential - Final Drives - Rear
49 gal (US)
186 l
Cooling Systems - Power Train
8 gal (US)
30 l
Differential - Final Drives - Front
49 gal (US)
186 l
Engine Crankcase
16 gal (US)
60 l
Diesel Exhaust Fluid Tank
8.7 gal (US)
33 l
Hydraulic System - Implement/Steering
126 gal (US)
475 l
Buckets
Bucket Capacities
4.7-13 m3 (6.2-17 yd3)
Axles
Front
Fixed
Rear
Trunnion
Oscillation Angle
13°
Brakes
Brakes
ISO 3450:2011
Hydraulic System - Steering
Steering Cycle Times - High Idle
3.4 s
3.4 s
Total Steering Angle
86°
Maximum Flow at 1,400-1,600 rpm
71.3 gal/min
270 l/min
Steering Cycle Times - Low Idle
5.6 s
5.6 s
Steering Cut Off Pressure
4351 psi
30000 kPa
Steering System - Circuit
Pilot, load sensing
Steering System - Pump
Piston, variable displacement
Hydraulic Cycle Times
Rack Back
4.5 s
4.5 s
Raise
8 s
8 s
Lower Float Down
3.5 s
3.5 s
Total Hydraulic Cycle Time
18.2 s
18.2 s
Dump
2.2 s
2.2 s
Sound Performance - Tier 4 Final/Stage IV
Machine Sound Level (ISO 6395)
109 dB(A)
109 dB(A)
Operator Sound Level (ISO 6396)
72 dB(A)
72 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.
Dimensions (Approximate) - Standard Lift
Rear Axle - Centerline to Bumper
10.5 ft
3187 mm
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 Lower Hitch Clearance
1.9 ft
568 mm
Dimensions (Approximate) - Standard Lift
Maximum Overall Height - Bucket Raised
24.5 ft
7455 mm
Dimensions (Approximate) - High Lift
B-Pin Height - Maximum Lift
19.3 ft
5881 mm
Dimensions (Approximate) - Standard Lift
Ground to Top of ROPS
13.7 ft
4187 mm
Dimensions (Approximate) - High Lift
Rear Axle - Centerline to Bumper
10.5 ft
3187 mm
Clearance at Maximum Lift
12.7 ft
3882 mm
Ground to Bumper Clearance
3.1 ft
933 mm
Ground to Top of Hood
10.9 ft
3334 mm
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.
Dimensions (Approximate) - Standard Lift
Ground to Top of Exhaust Stacks
14.8 ft
4498 mm
Dimensions (Approximate) - High Lift
Front Axle Centerline to Bucket Tip
15.9 ft
4854 mm
Ground to Top of Exhaust Stacks
14.8 ft
4498 mm
Operating Specifications
Operating Weight - Standard
116362 lb
52781 kg
Dimensions (Approximate) - Standard Lift
Wheel Base
14.9 ft
4550 mm
Dimensions (Approximate) - High Lift
Reach - Maximum Lift
7 ft
2130 mm
Dimensions (Approximate) - Standard Lift
B-Pin Height - Maximum Lift
18 ft
5479 mm
Dimensions (Approximate) - High Lift
Maximum Overall Length
41.3 ft
12582 mm
Wheel Base
14.9 ft
4550 mm
Dimensions (Approximate) - Standard Lift
Reach - Maximum Lift
6.8 ft
2074 mm
Maximum Overall Length
40 ft
12204 mm
Dimensions (Approximate) - High Lift
Ground to Top of ROPS
13.7 ft
4187 mm
Service Refill Capacities
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.
Operating Specifications
Operating Weight - High Lift
119618 lb
54258 kg
Dimensions (Approximate) - Standard Lift
Ground to Bumper Clearance
3.1 ft
933 mm
Ground to Lower Hitch Clearance
1.9 ft
568 mm
Ground to Center of Axles
3.2 ft
978 mm
Hydraulic System - Steering
Steering
ISO 5010:2007
Dimensions (Approximate) - High Lift
Ground to Center of Axles
3.2 ft
978 mm
Dimensions (Approximate) - Standard Lift
Front Axle Centerline to Bucket Tip
14.7 ft
4467 mm
Dimensions (Approximate) - High 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.
Dimensions (Approximate) - Standard Lift
Clearance at Maximum Lift
11.3 ft
3445 mm
Sound Performance - Tier 4 Final/Stage IV
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) - High Lift
Maximum Overall Height - Bucket Raised
25.8 ft
7849 mm
Operator's Cab
ROPS/FOPS
ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards
Dimensions (Approximate) - Standard Lift
Ground to Top of Hood
10.9 ft
3334 mm
Standard/Optional

Standard Equipment

NOTE
ELECTRICAL
OPERATOR ENVIRONMENT
POWER TRAIN
OTHER

Optional Equipment

NOTE
POWER TRAIN
OPERATOR ENVIRONMENT
MISCELLANEOUS ATTACHMENTS
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Available Used

CATERPILLAR 988
Serial Number 87A08634C
CATERPILLAR 988F
Serial Number 2ZR01712C
View All

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