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990 Wheel Loader
988 GC Wheel Loader

Engine

Engine Power - ISO 14396:2002 752 hp - -
Engine Model Cat® C27 Cat® C15 -
Emissions Option 2 - Emits equivalent to U.S. EPA Tier 2 - -
Rated Speed 1800 r/min 2000 rpm -
Gross Power - SAE J1995:2014 766 hp 456 hp -
Net Power - SAE J1349:2011 - Standard Ambient 699 hp - -
Net Power - SAE J1349:2011 - High Ambient 648 hp - -
Bore 5.4 in 5.4 in -
Stroke 6 in 6.75 in -
Displacement 1649.5 in³ 927 in³ -
Peak Torque - 1,200 rpm 2624 lb/ft - -
Torque Rise 18 % 16% -
Note Net power advertised is the power available at the flywheel when the engine is equipped with fan at minimum speed, air intake sytstem, exhaust system, and alternator. - -
Peak Power Speed - 1600 rpm -
Net Power - SAE J1349:2011 - 448 hp -
Peak Torque (1,200 rpm) - SAE J1995:2014 - 1778 lbf·ft -
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. -

Operating Specifications

Operating Weight - Standard 178517 lb - -
Bucket Capacity Range 8.6 m³ – 10.0 m³ (11.25 yd³ – 13.0 yd³) 6.4-7.6 m3 (8.3-10 yd3) -
Rated Payload - Standard 17.5 ton (US) - -
Rated Payload - High Lift 17.5 ton (US) - -
Cat Truck Match - Standard 773-775 - -
Cat Truck Match - High Lift 775-777 772/773/775 -
Operating Weight - 112426 lb -
Rated Payload - Quarry Face - 12.5 ton (US) -

Transmission

Transmission Type Cat planetary power shift Cat planetary power shift -
Forward - 1 4.6 mile/h 5 mile/h -
Forward - 2 8.2 mile/h 8 mile/h -
Forward - 3 14.5 mile/h - -
Reverse - 1 5.1 mile/h 5 mile/h -
Reverse - 2 9.1 mile/h 8 mile/h -
Reverse - 3 16 mile/h - -
Direct Drive - Forward 1 Lock-up disabled Lock-up disabled -
Direct Drive - Forward 2 8.2 mile/h 8 mile/h -
Direct Drive - Forward 3 14.5 mile/h 14 mile/h -
Direct Drive - Reverse 1 5.1 mile/h Lock-up disabled -
Direct Drive - Reverse 2 9.1 mile/h 9 mile/h -
Direct Drive - Reverse 3 16 mile/h 16 mile/h -
Note Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. Travel speeds based on 35/65-R33 tires. -
Direct Drive - Forward 4 - 24 mile/h -
Direct Drive - Reverse 4 - 25.4 mile/h -

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit Positive flow control EH - Load Sense -
Lift/Tilt System Variable displacement piston - -
Maximum Flow at 1,800 rpm 240 gal/min - -
Relief Valve Setting - Lift/Tilt 4786 psi 4598 psi -
Cylinders, Double Acting - Lift, Bore and Stroke 235 mm × 1287 mm (9.3 in × 50.7 in) 190 mm x 1216 mm (7.5 in x 48 in) -
Cylinders, Double Acting - Tilt, Bore and Stroke 292.1 mm × 820 mm (11.5 in × 32.3 in) 170 mm x 722 mm (6.7 in x 28.4 in) -
Pilot System Open loop and pressure reducing Variable displacement piston -
Pilot Relief Setting 507 psi - -
Lift/Tilt System - Pump - Variable displacement piston -
Maximum Flow at 2,165 rpm - 159 gal/min -
Relief Valve Setting - 500 psi -

Hydraulic Cycle Times

Rack Back 4.3 s 3.8 s -
Raise 8.6 s 7.5 s -
Dump 2.9 s 3 s -
Lower 3.7 s - -
Lower Float Down 3.7 s 4.6 s -
Total Hydraulic Cycle Time - Empty Bucket 13.8 s 18.9 s -

Hydraulic System - Steering

Steering System - Circuit Pilot, load sensing Pilot, load sensing -
Steering System - Pump Piston, variable displacement Piston, variable displacement -
Maximum Flow at 1,400 rpm 96.2 gal/min - -
Relief Valve Setting - Steering 5004 psi 4000 psi -
Total Steering Angle 70° 70° -
Maximum Flow at 2,165 rpm - 52 gal/min -
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 c 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 Fixed -
Rear Trunnion Trunnion -
Oscillation Angle 8.5° +/-12.5° -

Brakes

Brakes ISO 3450: 2011 ISO 3450:2011 -

Service Refill Capacities

Fuel Tank 281 gal (US) 141 gal (US) -
Cooling System 54.9 gal (US) 27 gal (US) -
Engine Crankcase 20 gal (US) 9 gal (US) -
Transmission 29.1 gal (US) 20 gal (US) -
Differential - Final Drives - Front 71.6 gal (US) 49 gal (US) -
Differential - Final Drives - Rear 68.9 gal (US) 45 gal (US) -
Hydraulic System Factory Fill 210 gal (US) 94 gal (US) -
Hydraulic Tank - Implement and Hydraulic Fan 68.9 gal (US) - -
Hydraulic Tank - Steering and Braking 34.9 gal (US) - -
Note Cat U.S. EPA Tier 4 Final/EU Stage V 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 acid methyl este 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 -
Diesel Exhaust Fluid Tank - 5.5 gal (US) -

Sound Performance - Tier 4 Final / Stage V

Operator Sound Pressure Level (ISO 6396:2008) 72 dB(A) 73 dB(A) -
Machine Sound Power Level (ISO 6395:2008) 116 dB(A) 113 dB(A) -
Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) 72 dB(A) -
Machine Sound Power Level (ISO 6395:2008)* 114 dB(A) - -
Note (1) *Sound suppression equipped * For machines in European Union countries and in countries that adopt the “EU Directives” and “UK Directives.” -
Note (2) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. ** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701. -
Note (3) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. 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) 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. 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. -
Machine Sound Power Level (ISO 6395:2008)** - 110 dB(A) -
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 2

Operator Sound Pressure Level (ISO 6396:2008) 72 dB(A) - -
Machine Sound Power Level (ISO 6395:2008) 116 dB(A) - -
Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) - -
Machine Sound Power Level (ISO 6395:2008)* 114 dB(A) - -
Note (1) *Sound suppression equipped - -
Note (2) The machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. - -
Note (3) The operator sound pressure level was measured according to ISO 6396:2008. The measurement was conducted at 70 percent of the maximum engine cooling fan speed. - -
Note (4) 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 17.2 ft - -
Ground to Top of Exhaust Stacks 16.6 ft - -
Ground to Top of Hood 12.7 ft - -
Ground to Bumper Clearance 3.5 ft - -
Rear Axle - Centerline to Bumper 12.5 ft - -
Front Axle Centerline to Bucket Tip 15.4 ft - -
Wheel Base 15.1 ft - -
Maximum Overall Length 42.9 ft - -
Ground to Lower Hitch Clearance 2 ft - -
Ground to Center of Front Axle 4.2 ft - -
Clearance at Maximum Lift 7.2 ft - -
Rack Back Angle at Ground Level 40.4° - -
Rack Back Angle at Carry 48.8° - -
B-Pin Height - Maximum Lift 19.7 ft - -
Maximum Overall Height - Bucket Raised 27.2 ft - -
Rack Angle at Maximum Lift 63.7° - -
Dump Angle at Maximum Lift 45° - -
Reach - Maximum Lift 7.2 ft - -
Note Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. - -

Dimensions (Approximate) - High Lift Linkage

Ground to Top of ROPS 17.2 ft - -
Ground to Top of Exhaust Stacks 16.6 ft - -
Ground to Top of Hood 12.7 ft - -
Ground to Bumper Clearance 3.5 ft - -
Rear Axle - Centerline to Bumper 12.5 ft - -
Front Axle Centerline to Bucket Tip 17.8 ft - -
Wheel Base 15.1 ft - -
Maximum Overall Length 45.3 ft - -
Ground to Lower Hitch Clearance 2 ft - -
Ground to Center of Front Axle 4.2 ft - -
Clearance at Maximum Lift 14.8 ft - -
Rack Back Angle at Ground Level 39.9° - -
Rack Back Angle at Carry 49.3° - -
B-Pin Height - Maximum Lift 21.2 ft - -
Maximum Overall Height - Bucket Raised 28.7 ft - -
Rack Angle at Maximum Lift 60.6° - -
Dump Angle at Maximum Lift 51° - -
Reach - Maximum Lift 8.5 ft - -
Note Specifications are calculated with 9.0 m3 (11.8 yd3) rock bucket and Bridgestone 45/65R39 VSDL One Star tires. - -

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 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. -

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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