988 GC Wheel Loader

Operating Weight

112426lb

Bucket Capacity Range

6.4-7.6 m3 (8.3-10 yd3)

Rated Payload – Quarry Face

12.5ton (US)

Cat Truck Match – High Lift

772/773/775

Engine Model

Cat® C15

Rated Speed

2000 rpm

Peak Power Speed

1600 rpm

Gross Power – SAE J1995:2014

456hp

Net Power – SAE J1349:2011

448hp

Bore

5.4in

Stroke

6.75in

Displacement

927in³

Peak Torque (1,200 rpm) – SAE J1995:2014

1778lbf·ft

Torque Rise

16%

Note (1)

Two engine emission options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan emission standards. 2. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.

Note (2)

Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake system, exhaust system, and alternator.

Note (3)

Net power at the flywheel when the fan is at maximum speed is 304 kW / 408 hp per SAE reference conditions.

Transmission Type

Cat planetary power shift

Forward – 1

5mile/h

Forward – 2

8mile/h

Reverse – 1

5mile/h

Reverse – 2

8mile/h

Direct Drive – Forward 1

Lock-up disabled

Direct Drive – Forward 2

8mile/h

Direct Drive – Forward 3

14mile/h

Direct Drive – Forward 4

24mile/h

Direct Drive – Reverse 1

Lock-up disabled

Direct Drive – Reverse 2

9mile/h

Direct Drive – Reverse 3

16mile/h

Direct Drive – Reverse 4

25.4mile/h

Note

Travel speeds based on 35/65-R33 tires.

Lift/Tilt System – Circuit

EH – Load Sense

Lift/Tilt System – Pump

Variable displacement piston

Maximum Flow at 2,165 rpm

159gpm

Relief Valve Setting – Lift/Tilt

4598psi

Cylinders, Double Acting – Lift, Bore and Stroke

190 mm x 1216 mm (7.5 in x 48 in)

Cylinders, Double Acting – Tilt, Bore and Stroke

170 mm x 722 mm (6.7 in x 28.4 in)

Pilot System

Variable displacement piston

Relief Valve Setting

500psi

Rack Back

3.8s

Raise

7.5s

Dump

Lower Float Down

4.6s

Total Hydraulic Cycle Time – Empty Bucket

18.9s

Steering System – Circuit

Pilot, load sensing

Steering System – Pump

Piston, variable displacement

Maximum Flow at 2,165 rpm

52gpm

Relief Valve Setting – Steering

4000psi

Total Steering Angle

70°

Steering Cycle Times – High Idle

Steering Cycle Times – Low Idle

5.2s

Air Conditioning

The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. – If equipped with R134a (Global Warming Potential = 1430), the system co

Front

Fixed

Rear

Trunnion

Oscillation Angle

+/-12.5°

Brakes

ISO 3450:2011

ROPS/FOPS

Rollover Protective Structure/Falling Objects Protective Structure (ROPS/FOPS) meet ISO 3471:2008 and ISO 3449:2005 Level II standards

Operator Sound Pressure Level (ISO 6396:2008)

73dB(A)

Machine Sound Power Level (ISO 6395:2008)

113dB(A)

Operator Sound Pressure Level (ISO 6396:2008)*

72dB(A)

Machine Sound Power Level (ISO 6395:2008)**

110dB(A)

Note (1)

* For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”

Note (2)

** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701.

Note (3)

The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.

Note (4)

The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.

Note (5)

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.

Operator Sound Pressure Level (ISO 6396:2008)

74dB(A)

Machine Sound Power Level (ISO 6395:2008)

113dB(A)

Operator Sound Pressure Level (ISO 6396:2008)*

73dB(A)

Machine Sound Power Level (ISO 6395:2008)**

110dB(A)

Note (1)

* For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.”

Note (2)

** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701.

Note (3)

The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.

Note (4)

The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed.

Note (5)

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.

Fuel Tank

141gal (US)

Cooling System

27gal (US)

Engine Crankcase

9gal (US)

Diesel Exhaust Fluid Tank

5.5gal (US)

Transmission

20gal (US)

Differential – Final Drives – Front

49gal (US)

Differential – Final Drives – Rear

45gal (US)

Hydraulic System Factory Fill

94gal (US)

Note

Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: – 20% biodiesel FAME (fatty acid methyl ester) *** – 10

Ground to Top of ROPS

13.5ft

Ground to Top of Exhaust Stacks

13.3ft

Ground to Top of Hood

10.7ft

Ground to Fuel Tank Clearance

2.2ft

Rear Axle – Centerline to Bumper

10.3ft

Front Axle Centerline to Bucket Tip

16.7ft

Wheel Base

12.5ft

Maximum Overall Length

39.5ft

Ground to Lower Hitch Clearance

1.5ft

Ground to Center of Front Axle

3.2ft

Clearance at Maximum Lift (45° Dump)

12ft

B-Pin Height – Maximum Lift

18.7ft

Maximum Overall Height – Bucket Raised

25ft

Reach at Maximum Lift (45° Dump)

7.7ft

Note

Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires.

Note
- Standard and optional equipment may vary. Consult your Cat dealer for details.
Electrical
- Alarm, back-up
- Alternator, single 145 amp
- Batteries, maintenance free
- Converter, 10/15 amp, 24V to 12V
- Lighting system (LED, work lights, access and service platform lighting)
- Starting and charging system, 24V
- Auxiliary jump start receptacle
Operator Environment
- Cab precleaner
- Lights, LED
- AM/FM radio
- Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
- Air conditioner
- Cat Vision, rear vision camera system
- Cab, sound suppressed and pressurized, integrated rollover protective structure/falling objects protective structure (ROPS/FOPS) radio ready for entertainment, includes antenna, speakers and converter (12‑volt 5-amp) and power port
- Controls, lift and tilt function
- Heater, defroster
- Horn, electric
- Instrumentation, gauges
  – Coolant temperature
  – Engine hour meter
  – Hydraulic oil temperature
  – Powertrain oil temperature
- Light, cab, dome
- Lunchbox, beverage holders
- Mirrors, rearview (externally mounted)
- Seat, Cat Comfort Cloth, air suspension, six-way adjustable
- Seat belt minder
- Seat belt, retractable, 76 mm (3 in) wide
- Steering and Transmission Integrated Control (STIC^™) system
- UV glass
- Transmission gear indicator
- Wet-Arm wipers/washers (front and rear)
  – Intermittent front and rear wipers
- Lights, directional
- Cat Production Measurement ready
Powertrain
- Brakes, oil-cooled, multi-disc, service/secondary
- Case drain screens
- Electro hydraulic parking brake
- Engine, C15 MEUI^™ diesel, turbocharged/aftercooled
- Ground level emergency engine shutdown switch
- Turbine precleaner, engine air intake
- Manual switch and automatic fuel priming
- Torque converter, neutralizer
- Transmission, planetary power shift, 4F/4R electronic control
- Cat Integrated Powered Electronics
- Automatic retarding controls
- Crankcase guard
Additional Equipment
- Automatic bucket lift kickout/positioner
- Base machine price includes a rim allowance
- Hydraulically driven demand fan
- Couplings, Cat O-ring face seals
- Doors, service access (locking)
- Ecology drains for engine, radiator, hydraulic tank
- Fuel tank, 535 L (141 gal)
- Hoses, Cat XT^™
- Hydraulic, steering and brake filtration/screening system
- Cat Clean Emission Module
- Oil sampling valves
- Premixed 50 percent concentration of extended life coolant with freeze protection to –34° C (–29° F)
- Rear access to cab and service platform
- Steering, load sensing
- Toe kicks
- Vandalism protection caplocks

Note
- Standard and optional equipment may vary. Consult your Cat dealer for details.
Powertrain
- High ambient cooling – software
- Starting aid, ether, automatic
- Antifreeze -50°C (-58°F)
Operator Environment
- Cat Production Measurement
- CB radio-ready
- Cat Detect, object detection system
Additional Equipment
- Front and rear roading fenders