988 Wheel Loader

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Product Description

The Cat® 988 Wheel Loader helps you move more material in less time, at a low cost per ton, for a fast return on your investment. This machine offers significant fuel savings with durability to achieve multiple lifecycles.

Specifications
Us
Metric
Engine
Net Power - SAE J1349
541 HP
401 kW
Engine Power - ISO 14396
580 HP
432 kW
Gross Power - SAE J1995
588 HP
439 kW
Engine Model
Cat® C18 ™
Peak Power Speed
1500/rpm
Rated Speed
1700/min
Emissions
U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014
Bore
5.7 in
145 mm
Stroke
7.2 in
183 mm
Displacement
1105 in³
18.1 l
Peak Torque - 1,200 rpm
2230 lb/ft
3023 N·m
Torque Rise
58 %
58 %
Operating Specifications
Operating Weight
112574 lb
51062 kg
Rated Payload - Quarry Face
12.5 t
11.3 t
Rated Payload - Loose Material
16 t
14.5 t
Bucket Capacity Range
4.7-13 m3 (6.2-17 yd3)
Cat Truck Match - Standard
770~772
Cat Truck Match - High Lift
773~775
Transmission
Transmission Type
Cat planetary powershift
Forward - 1
4 mile/h
6.5 km/h
Forward - 2
7.2 mile/h
11.6 km/h
Forward - 3
12.7 mile/h
20.4 km/h
Forward - 4
21.6 mile/h
34.7 km/h
Reverse - 1
4.7 mile/h
7.5 km/h
Reverse - 2
8.3 mile/h
13.3 km/h
Reverse - 3
14.4 mile/h
23.2 km/h
Direct Drive - Forward 1
Lock-up disabled
Direct Drive - Forward 2
7.8 mile/h
12.5 km/h
Direct Drive - Forward 3
13.9 mile/h
22.3 km/h
Direct Drive - Forward 4
24.4 mile/h
39.3 km/h
Direct Drive - Reverse 1
5 mile/h
8 km/h
Direct Drive - Reverse 2
8.9 mile/h
14.3 km/h
Direct Drive - Reverse 3
15.8 mile/h
25.5 km/h
Hydraulic System - Lift/Tilt
Lift/Tilt System - Circuit
EH- Positive Flow Control, Flow Sharing
Lift/Tilt System
Variable displacement piston
Maximum Flow at 1,400-1,860 rpm
153 gal/min
580 l/min
Relief Valve Setting - Lift/Tilt
4757 psi
32800 kPa
Cylinders, Double Acting - Lift, Bore and Stroke
210 mm × 1050 mm (8.7 in × 41.3 in)
Cylinders, Double Acting - Tilt, Bore and Stroke
269 mm × 685 mm (8.7 in × 27 in)
Pilot System
Variable displacement piston
Relief Valve Setting - Main
551 psi
3800 kPa
Hydraulic Cycle Time (1,400-1,860 rpm)
Rack Back
4.5 s
4.5 s
Raise
8 s
8 s
Dump
2.2 s
2.2 s
Lower Float Down
3.5 s
3.5 s
Total Hydraulic Cycle Time - Empty Bucket
18.2 s
18.2 s
Hydraulic System - Steering
Steering System - Circuit
Pilot, load sensing
Steering System - Pump
Piston, variable displacement
Maximum Flow
71.3 gal/min
270 l/min
Relief Valve Setting - Steering
4351 psi
30000 kPa
Total Steering Angle
86 °
Steering Cycle Times - High Idle
3.4 s
3.4 s
Steering Cycle Times - Low Idle
5.6 s
5.6 s
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
188 gal (US)
712 l
Cooling System
31.7 gal (US)
120 l
Coolant (Validated by Test Cell Fill Quantities)
33 gal (US)
125 l
Crankcase
15.9 gal (US)
60 l
Diesel Exhaust Fluid Tank
8.7 gal (US)
33 l
Transmission
31.7 gal (US)
120 l
Transmission - Validated by Test Cell Fill Quantities
29 gal (US)
110 l
Differential - Final Drives - Front
49.1 gal (US)
186 l
Differential - Final Drives - Rear
49.1 gal (US)
186 l
Hydraulic System Factory Fill
125.5 gal (US)
475 l
Hydraulic System - Tank Only
63.4 gal (US)
240 l
Sound Performance - Tier 4 Final/EU Stage V - Standard
Operator Sound Level (ISO 6396)
72 dB(A)
72 dB(A)
Machine Sound Level (ISO 6395)
111 dB(A)
111 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 Linkage
Ground to Top of ROPS
13.8 ft
4202 mm
Ground to Top of Exhaust Stacks
14.8 ft
4521 mm
Ground to Top of Hood
10.9 ft
3334 mm
Rear Axle - Centerline to Bumper
10.5 ft
3187 mm
Front Axle Centerline to Bucket Tip
14 ft
4254 mm
Wheel Base
14.9 ft
4550 mm
Maximum Overall Length
39.3 ft
11991 mm
Ground to Lower Hitch Clearance
1.9 ft
568 mm
Clearance at Maximum Lift
11.9 ft
3641 mm
B-Pin Height - Maximum Lift
18 ft
5491 mm
Maximum Overall Height - Bucket Raised
24.5 ft
7455 mm
Reach - Maximum Lift
6.5 ft
1981 mm
Dimensions (Approximate) - High Lift Linkage
Ground to Top of ROPS
13.8 ft
4202 mm
Ground to Top of Exhaust Stacks
14.8 ft
4521 mm
Ground to Top of Hood
10.9 ft
3334 mm
Rear Axle - Centerline to Bumper
10.5 ft
3187 mm
Front Axle Centerline to Bucket Tip
15.3 ft
4661 mm
Wheel Base
14.9 ft
4550 mm
Maximum Overall Length
40.7 ft
12398 mm
Ground to Lower Hitch Clearance
1.9 ft
568 mm
Clearance at Maximum Lift
13.3 ft
4043 mm
B-Pin Height - Maximum Lift
19.3 ft
5887 mm
Maximum Overall Height - Bucket Raised
25.8 ft
7849 mm
Reach - Maximum Lift
6.8 ft
2062 mm
Buckets
Bucket Capacities
4.7-13 m3 (6.2-17 yd3)
Standard/Optional

Standard Equipment

NOTE
ELECTRICAL
OPERATOR ENVIRONMENT
POWER TRAIN
OTHER

Optional Equipment

NOTE
POWER TRAIN
OPERATOR ENVIRONMENT
ADDITIONAL EQUIPMENT
OTHER OPTIONAL CONFIGURATIONS

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