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988 GC Wheel Loader
990 Wheel Loader

Engine

Engine Model Cat® C15 C27 Cat® -
Rated Speed 2000 1,800/min -
Peak Power Speed 1600 - -
Engine Power - ISO 14396 449 HP 752 HP -
Gross Power - SAE J1995 456 HP 766 HP -
Net Power - SAE J1349 373 HP - -
Emissions U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 U.S. EPA TIer 4 Final and EU Stage V emission standards or U.S. EPA Tier 2 and EU Stage II equivalent -
Bore 5.4 in 5.4 in -
Stroke 6.75 in 6 in -
Displacement 927 in³ 1649.5 in³ -
Peak Torque - 1,200 rpm - SAE J1995 1778 ft·lbf - -
Torque Rise 16% 18 % -
Net Power - SAE J1349 - Standard Ambient - 699 HP -
Net Power - SAE J1349 - High Ambient - 648 HP -
Peak Torque - 1,200 rpm - 2624 lb/ft -

Operating Specifications

Operating Weight 116858 lb 178517 lb -
Rated Payload - Quarry Face 12.5 ton (US) - -
Bucket Capacity Range 6.4-7.6 m3 (8.3-10 yd3) 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) -
Cat Truck Match - High Lift 772/773/775 775-777 -
Rated Payload - Standard - 17.5 ton (US) -
Rated Payload - High Lift - 17.5 ton (US) -
Cat Truck Match - Standard - 773-775 -

Transmission

Transmission Type Cat planetary power shift Cat planetary power shift -
Forward - 1 5 mile/h 4.5 mile/h -
Forward - 2 8 mile/h 8.3 mile/h -
Reverse - 1 5 mile/h 4.9 mile/h -
Reverse - 2 8 mile/h 9.1 mile/h -
Direct Drive - Forward 1 Lock-up disabled Lock-up disabled -
Direct Drive - Forward 2 8 mile/h 8.5 mile/h -
Direct Drive - Forward 3 14 mile/h 15.2 mile/h -
Direct Drive - Forward 4 24 mile/h - -
Direct Drive - Reverse 1 Lock-up disabled 5.4 mile/h -
Direct Drive - Reverse 2 9 mile/h 9.6 mile/h -
Direct Drive - Reverse 3 16 mile/h 16.4 mile/h -
Direct Drive - Reverse 4 25.4 mile/h - -
Forward - 3 - 14.2 mile/h -
Reverse - 3 - 15.5 mile/h -
Note - Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. -

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit EH - Load Sense Positive flow control -
Lift/Tilt System 2X x 145 cc Variable displacement piston Variable displacement piston -
Maximum Flow at 2,165 rpm 159 gal/min - -
Relief Valve Setting - Lift/Tilt 4598 psi 4786 psi -
Cylinders, Double Acting - Lift, Bore and Stroke 190 mm x 1216 mm (7.5 in x 48 in) 235 mm × 1287 mm (9.3 in × 50.7 in) -
Cylinders, Double Acting - Tilt, Bore and Stroke 170 mm x 722 mm (6.7 in x 28.4 in) 292.1 mm × 820 mm (11.5 in × 32.3 in) -
Pilot System Variable displacement piston Open loop and pressure reducing -
Tilt Cylinder - Stroke 27 in - -
Maximum Flow at 1,800 rpm (1) - 240 gal/min -
Relief Valve Setting - Main - 507 psi -

Hydraulic Cycle Times

Rack Back 3.8 s 4.3 s -
Raise 7.5 s 8.2 s -
Dump 3 s 2.9 s -
Lower Float Down 4.6 s 3.6 s -
Total Hydraulic Cycle Time - Empty Bucket 18.9 s 13.8 s -
Lower - 3.7 s -

Hydraulic System - Steering

Steering System - Circuit Pilot, load sensing Pilot, load sensing -
Steering System - Pump Piston, variable displacement Piston, variable displacement -
Maximum Flow 52 gal (US) - -
Relief Valve Setting - Steering 4000 psi 5004 psi -
Total Steering Angle 70° 70° -
Steering Cycle Times - High Idle 3 s - -
Steering Cycle Times - Low Idle 5.2 s - -
Maximum Flow at 1,400 rpm - 96.2 gal/min -

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. The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.7 kg of refrigerant which has a CO2 equivalent of 3.861 metric tonnes (4.256 tons). -

Axles

Front Fixed Fixed -
Rear Trunnion Trunnion -
Oscillation Angle +/-12.5° 8.5° -

Brakes

Brakes ISO 3450:2011 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 141 gal (US) 294.3 gal (US) -
Cooling System 27 gal (US) 54.9 gal (US) -
Engine Crankcase 9 gal (US) 20 gal (US) -
Diesel Exhaust Fluid Tank 5.5 gal (US) - -
Transmission 20 gal (US) 29.1 gal (US) -
Differential - Final Drives - Front 49 gal (US) 71.6 gal (US) -
Differential - Final Drives - Rear 45 gal (US) 68.9 gal (US) -
Note Cat U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: - 20% biodiesel FAME (fatty a All nonroad U.S. EPA Tier 4 diesel engines are required to use only Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm (mg/kg) sulfur or less. Biodiesel blends up to B20 (20% blend by volume) are acceptable when blended with 15 ppm (mg/kg) sulfur or l -
Hydraulic System Factory Fill - 210 gal (US) -
Hydraulic Tank - Implement and Hydraulic Fan - 68.9 gal (US) -
Hydraulic Tank - Steering and Braking - 34.9 gal (US) -

Sound Performance - Tier 4 Final/EU Stage V - Standard

Operator Sound Level (ISO 6396) 72 dB(A) - -
Machine Sound Level (ISO 6395) 110 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. - -

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 - -
Rear Axle - Centerline to Bumper 10.3 ft - -
Front Axle Centerline to Bucket Tip 15.7 ft - -
Wheel Base 12.5 ft - -
Maximum Overall Length 39.5 ft - -
Ground to Lower Hitch Clearance 1.5 ft - -
Clearance at Maximum Lift 12 ft - -
B-Pin Height - Maximum Lift 18.7 ft - -
Maximum Overall Height - Bucket Raised 25 ft - -
Reach - Maximum Lift 7.7 ft - -
Note Specifications are calculated with 6.9 m3 (9.0 yd3 ) rock bucket equipped with Michelin XLDD1 35/65 R33 tires. - -

Buckets

Bucket Capacities 6.4-7.6 m3 (8.3-10 yd3) 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) -

Sustainability

Recyclability 96% - -

Sound Performance - Standard

Operator Sound Level (ISO 6396:2008) - 65.5 dB(A) -
Machine Sound Level (ISO 6395:2008) - 115 dB(A) -

Sound Performance - Suppression

Operator Sound Level (ISO 6396:2008) - 65.5 dB(A) -
Machine Sound Level (ISO 6395:2008) - 113 dB(A) -
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