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988 GC Wheel Loader

Operating Specifications

Operating Weight 112426 lb - -
Bucket Capacity Range 6.4-7.6 m3 (8.3-10 yd3) - -
Rated Payload - Quarry Face 12.5 ton (US) - -
Cat Truck Match - High Lift 772/773/775 - -

Engine

Engine Model Cat® C15 - -
Rated Speed 2000 rpm - -
Peak Power Speed 1600 rpm - -
Gross Power - SAE J1995:2014 456 hp - -
Net Power - SAE J1349:2011 448 hp - -
Bore 5.4 in - -
Stroke 6.75 in - -
Displacement 927 in³ - -
Peak Torque (1,200 rpm) - SAE J1995:2014 1778 lbf·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

Transmission Type Cat planetary power shift - -
Forward - 1 5 mile/h - -
Forward - 2 8 mile/h - -
Reverse - 1 5 mile/h - -
Reverse - 2 8 mile/h - -
Direct Drive - Forward 1 Lock-up disabled - -
Direct Drive - Forward 2 8 mile/h - -
Direct Drive - Forward 3 14 mile/h - -
Direct Drive - Forward 4 24 mile/h - -
Direct Drive - Reverse 1 Lock-up disabled - -
Direct Drive - Reverse 2 9 mile/h - -
Direct Drive - Reverse 3 16 mile/h - -
Direct Drive - Reverse 4 25.4 mile/h - -
Note Travel speeds based on 35/65-R33 tires. - -

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit EH - Load Sense - -
Lift/Tilt System - Pump Variable displacement piston - -
Maximum Flow at 2,165 rpm 159 gal/min - -
Relief Valve Setting - Lift/Tilt 4598 psi - -
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 500 psi - -

Hydraulic Cycle Times

Rack Back 3.8 s - -
Raise 7.5 s - -
Dump 3 s - -
Lower Float Down 4.6 s - -
Total Hydraulic Cycle Time - Empty Bucket 18.9 s - -

Hydraulic System - Steering

Steering System - Circuit Pilot, load sensing - -
Steering System - Pump Piston, variable displacement - -
Maximum Flow at 2,165 rpm 52 gal/min - -
Relief Valve Setting - Steering 4000 psi - -
Total Steering Angle 70° - -
Steering Cycle Times - High Idle 3 s - -
Steering Cycle Times - Low Idle 5.2 s - -

Air Conditioning System

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 - -

Axles

Front Fixed - -
Rear Trunnion - -
Oscillation Angle +/-12.5° - -

Brakes

Brakes ISO 3450:2011 - -

Operator's Cab

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

Sound Performance - Tier 4 Final / Stage V

Operator Sound Pressure Level (ISO 6396:2008) 73 dB(A) - -
Machine Sound Power Level (ISO 6395:2008) 113 dB(A) - -
Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) - -
Machine Sound Power Level (ISO 6395:2008)** 110 dB(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. - -

Sound Performance - Tier 3 / Stage IIIA

Operator Sound Pressure Level (ISO 6396:2008) 74 dB(A) - -
Machine Sound Power Level (ISO 6395:2008) 113 dB(A) - -
Operator Sound Pressure Level (ISO 6396:2008)* 73 dB(A) - -
Machine Sound Power Level (ISO 6395:2008)** 110 dB(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. - -

Service Refill Capacities

Fuel Tank 141 gal (US) - -
Cooling System 27 gal (US) - -
Engine Crankcase 9 gal (US) - -
Diesel Exhaust Fluid Tank 5.5 gal (US) - -
Transmission 20 gal (US) - -
Differential - Final Drives - Front 49 gal (US) - -
Differential - Final Drives - Rear 45 gal (US) - -
Hydraulic System Factory Fill 94 gal (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 - -

Dimensions (Approximate) - High Lift

Ground to Top of ROPS 13.5 ft - -
Ground to Top of Exhaust Stacks 13.3 ft - -
Ground to Top of Hood 10.7 ft - -
Ground to Fuel Tank Clearance 2.2 ft - -
Rear Axle - Centerline to Bumper 10.3 ft - -
Front Axle Centerline to Bucket Tip 16.7 ft - -
Wheel Base 12.5 ft - -
Maximum Overall Length 39.5 ft - -
Ground to Lower Hitch Clearance 1.5 ft - -
Ground to Center of Front Axle 3.2 ft - -
Clearance at Maximum Lift (45° Dump) 12 ft - -
B-Pin Height - Maximum Lift 18.7 ft - -
Maximum Overall Height - Bucket Raised 25 ft - -
Reach at Maximum Lift (45° Dump) 7.7 ft - -
Note Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires. - -
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