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988 GC Wheel Loader
950 GC Wheel Loader | Front Loader
990 Wheel Loader
910 Compact Wheel Loader

Operating Specifications

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

Engine

Engine Model Cat® C15 Cat C7.1 Cat® C27 Cat C3.6
Rated Speed 2000 rpm - 1800 r/min -
Peak Power Speed 1600 rpm - - -
Gross Power - SAE J1995:2014 456 hp - 766 hp -
Net Power - SAE J1349:2011 448 hp - - -
Bore 5.4 in 4.13 in 5.4 in 3.85 in
Stroke 6.75 in 5.31 in 6 in 4.72 in
Displacement 927 in³ 428 in³ 1649.5 in³ 220 in³
Peak Torque (1,200 rpm) - SAE J1995:2014 1778 lbf·ft - - -
Torque Rise 16% - 18 % -
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. - - -
Net Power - ISO 9249 - 225 hp - -
Emissions - Tier 4/Stage V Option 2 - Emits equivalent to U.S. EPA Tier 2 Engine meets Tier 4 Final/Stage V emission standards.
Note - The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.9 kg (4.2 lb) of refrigerant which has a CO2 equivalent of 2.717 metric tonnes (2.995 tons). 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. Net power advertised is the power available at the flywheel plus front drive implement pump when the engine is equipped with fan, air cleaner, muffler and alternator.
Maximum Net Power - 1,700 rpm - ISO 9249 - Metric - 228 hp - -
Maximum Power - 1,700 rpm - ISO 14396 - 240 hp - -
Maximum Power - 1,700 rpm - ISO 14396 - Metric - 243 hp - -
Peak Gross Torque - 1,400 rpm - SAE J1995 - 811 ft·lbf - -
Peak Gross Torque - 1,400 rpm - ISO 14396 - 805 ft·lbf - -
Maximum Net Power - 1,700 rpm - ISO 9249 - 225 hp - -
Maximum Net Power - 1,700 rpm - SAE J1349 - 225 hp - -
Maximum Power - 1,700 rpm - SAE J1995 - 241 hp - -
Engine Power - ISO 14396:2002 - - 752 hp -
Net Power - SAE J1349:2011 - Standard Ambient - - 699 hp -
Net Power - SAE J1349:2011 - High Ambient - - 648 hp -
Peak Torque - 1,200 rpm - - 2624 lb/ft -
Maximum Gross Power - - - 110 hp
Rated Net Power - Rated Engine Speed - - - 2200 r/min
Maximum Gross Power - Rated Engine Speed - - - 1800 r/min
Rated Net Power - SAE J1349 - - - 99 hp
Maximum Gross Power - ISO 14396 (metric) - - - 112 hp
Rated Net Power - ISO 9249 - - - 98 hp
Maximum Gross Torque - SAE J1995 - - - 335 ft·lbf
Maximum Gross Torque - ISO 14396 - - - 332 ft·lbf
Maximum Net Torque - SAE J1349 - - - 329 ft·lbf
Maximum Net Torque - ISO 9249 - - - 327 ft·lbf
Maximum Gross Power - ISO 14396 - - - 110 hp

Transmission

Transmission Type Cat planetary power shift - Cat planetary power shift -
Forward - 1 5 mile/h 4.5 mile/h 4.6 mile/h -
Forward - 2 8 mile/h 8 mile/h 8.2 mile/h -
Reverse - 1 5 mile/h 4.5 mile/h 5.1 mile/h -
Reverse - 2 8 mile/h 8 mile/h 9.1 mile/h -
Direct Drive - Forward 1 Lock-up disabled - Lock-up disabled -
Direct Drive - Forward 2 8 mile/h - 8.2 mile/h -
Direct Drive - Forward 3 14 mile/h - 14.5 mile/h -
Direct Drive - Forward 4 24 mile/h - - -
Direct Drive - Reverse 1 Lock-up disabled - 5.1 mile/h -
Direct Drive - Reverse 2 9 mile/h - 9.1 mile/h -
Direct Drive - Reverse 3 16 mile/h - 16 mile/h -
Direct Drive - Reverse 4 25.4 mile/h - - -
Note Travel speeds based on 35/65-R33 tires. Maximum travel speed in standard vehicle with empty bucket and standard L3 tires with 760 mm (30 in) roll radius. Travel speeds based on Michelin 45/65R39 LD D2**L5 tires. *Creeper Control allows speed control from a stand still up to 10 km/h (6.3 mph). The Creeper Control will only work in Range 1.
Reverse - 3 - 14.2 mile/h 16 mile/h -
Forward - 3 - 14.2 mile/h 14.5 mile/h -
Forward - 4 - 22.4 mile/h - -
Forward and Reverse - Speed Range 3 - - - 25 mile/h
Forward and Reverse - Speed Range 2* - - - 12.5 mile/h
Forward and Reverse - Speed Range 1* - - - 6.3 mile/h

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit EH - Load Sense - Positive flow control -
Lift/Tilt System - Pump Variable displacement piston - - -
Maximum Flow at 2,165 rpm 159 gpm - - -
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 -
Relief Valve Setting 500 psi - - -
Lift/Tilt System - - Variable displacement piston -
Maximum Flow at 1,800 rpm - - 240 gpm -
Pilot Relief Setting - - 507 psi -

Hydraulic Cycle Times

Rack Back 3.8 s - 4.3 s -
Raise 7.5 s - 8.6 s -
Dump 3 s - 2.9 s -
Lower Float Down 4.6 s - 3.7 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 at 2,165 rpm 52 gpm - - -
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 gpm -

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 - • 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 -

Axles

Front Fixed - Fixed Fixed; Locking differential (standard)
Rear Trunnion - Trunnion Oscillating ±11 degrees; Locking differential (Standard)
Oscillation Angle +/-12.5° - 8.5° -

Brakes

Brakes ISO 3450:2011 - 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) - 72 dB(A) -
Machine Sound Power Level (ISO 6395:2008) 113 dB(A) - 116 dB(A) -
Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) - 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.” - *Sound suppression equipped -
Note (2) ** European Union Directive “2000/14/EC” as amended by “2005/88/EC” and UK Noise Regulation 2001 No. 1701. - 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 machine sound power level was measured according to ISO 6395:2008. The measurement was conducted at 70% of the maximum engine cooling fan speed. - 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) 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. - 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 (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. - - -
Machine Sound Power Level (ISO 6395:2008)* - - 114 dB(A) -

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) - 281 gal (US) 43.6 gal (US)
Cooling System 27 gal (US) 13.2 gal (US) 54.9 gal (US) 5.7 gal (US)
Engine Crankcase 9 gal (US) - 20 gal (US) 2.6 gal (US)
Diesel Exhaust Fluid Tank 5.5 gal (US) - - -
Transmission 20 gal (US) 11.9 gal (US) 29.1 gal (US) 0.8 gal (US)
Differential - Final Drives - Front 49 gal (US) 10.6 gal (US) 71.6 gal (US) -
Differential - Final Drives - Rear 45 gal (US) 10 gal (US) 68.9 gal (US) -
Hydraulic System Factory Fill 94 gal (US) - 210 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 - 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 DEF used in Cat SCR systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1.
DEF Tank - 4.2 gal (US) - -
Fuel Tank Size - 76.6 gal (US) - -
Crankcase - 4.8 gal (US) - -
Hydraulic Tank - 29.6 gal (US) - 14.5 gal (US)
Hydraulic Tank - Implement and Hydraulic Fan - - 68.9 gal (US) -
Hydraulic Tank - Steering and Braking - - 34.9 gal (US) -
Diesel Exhaust Fluid (DEF) Tank - - - 4.8 gal (US)
Hydraulic System - Including Tank - - - 25.9 gal (US)
Axles - Front Center Differential - - - 2 gal (US)
Axles - Rear Center Differential - - - 2 gal (US)

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. - - -

Weights

Operating Weight - 41554 lb - 18102 lb

Buckets

Bucket Capacities - 2.9-4.4 m³ (3.75-5.75 yd³) - 1.3-3.5 m3 (1.7-4.6 yd3)
Bucket Capacities - General Purpose - - - 1.3-1.9 m³ (1.7-2.5 yd³)
Bucket Capacities - Light Material - - - 2.5-3.5 m³ (3.3-4.6 yd³)

Sound

With Cooling Fan Speed at Maximum Value - Exterior Sound Pressure Level (SAE J88:2013) - 76 dB(A)* - -
Note (1) - *Distance of 15 m (49.2 ft), moving forward in second gear ratio. - -
With Cooling Fan Speed at 70% of Maximum Value: Note (2) - European Union Directive "2000/14/EC" as amended by "2005/88/EC." - -
With Cooling Fan Speed at 70% of Maximum Value - Operator Sound Pressure Level (ISO 6396:2008)** - 73 dB(A) - -
With Cooling Fan Speed at 70% of Maximum Value: Note (1) - For machines in European Union countries and in countries that adopt the EU Directives - -
With Cooling Fan Speed at Maximum Value - Note - Distance of 15 m (49.2 ft), moving forward in second gear ratio. - -
With Cooling Fan Speed at 70% of Maximum Value - Exterior Sound Power Level (ISO 6395:2008)** - 107 LWA*** - -
Note (3) - ***European Union Directive "2000/14/EC" as amended by "2005/88/EC." - -
Note (2) - **For machines in European Union countries and in countries that adopt the "EU Directives." - -
With Cooling Fan Speed at Maximum Value - Operator Sound Pressure Level (ISO 6396:2008) - 73 dB(A) - -
With Cooling Fan Speed at Maximum Value - Exterior Sound Power Level (ISO 6395:2008) - 109 dB(A) - -

Dimensions

Rack Back - Ground - 40 degrees - -
Height - Top of Exhaust Pipe - 11.17 ft - -
Centerline of Rear Axle to Hitch - 5.42 ft - -
Lift Arm Clearance - 12 ft - -
B-Pin Height - 13.75 ft - -
Centerline of Rear Axle to Edge of Counterweight - 6.75 ft - -
Ground Clearance - 1.5 ft - -
Rack Back - Maximum Lift - 60 degrees - -
Height - Top of Hood - 8.75 ft - -
Wheel Base - 10.83 ft - -
Height - Top of ROPS - 11.33 ft - -
Rack Back - Carry - 45 degrees - -
Note - All dimensions are approximate and based on MAXAM MS302 23.5R25 L3 radial tires. - -

Weights and Operating Specifications

Note (2) - *Full compliance to ISO (2007) 14397-1 Sections 1 thru 6, which requires 2% verification between calculations and testing. - -
Tipping Load - Full Turn - Rigid Tires** - 25875 lb - -
Breakout Force - 34638 lbf - -
Tipping Load - Full Turn - ISO 14397-1* - 24264 lb - -
Note (3) - **Compliance to ISO (2007) 14397-1 Sections 1 thru 5. - -
Operating Weight - 41554 lb - -
Note (1) - For 3.1 m3 (4.0 yd3) general purpose buckets with BOCE. Weight based on a machine configuration with MAXAM MS302 23.5R25 L3 radial tires, full fluids, operator, standard counterweight, cold start, roading fenders, Product Link™, secondary steering, sound - -

Hydraulic System

Hydraulic Cycle Time - Total Cycle Time - 9.4 s - -
Steering System - Pump Type - Piston - -
Implement System - Maximum Operating Pressure @ 50 ± 1.5 L/min (13.2 + 0.4 gal/min) - 4047 psi - -
Implement System - Maximum Pump Output at 2,390 rpm - 68 gpm - -

Engine - Tier 4 Final/Stage IV

Emissions - Tier 4/Stage IV - -

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. -

Sustainability

Recyclability - - - 95%

Cab

ROPS - - - ISO 3471:2008
FOPS - - - ISO 3449:2005
Note (2) - - - The declared dynamic operator sound pressure levels per ISO 6396:2008*, when the cab is properly installed and maintained, is 77 dB(A).
Note (3) - - - The labelled sound power level for the CE marked configurations when measured according to the test procedure and conditions specified in 2000/14/EC (as amended by 2005/88/EC) is 103 dB(A).
Note (1) - - - Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.
Note (4) - - - *The measurements were conducted with the cab doors and windows closed.

Steering

Maximum Working Pressure - Steering Pump - - - 2683 psi
Steering Articulation Angle - Each Direction - - - 40 °
Steering Cycle Times - Full Left to Full Right - At 2,350 rpm: 90 rpm Steering Wheel Speed - - - 3.2 s
Maximum Flow - Steering Pump - - - 17 gpm
Number of Steering Wheel Turns - Full Left to Full Right or Full Right to Full Left - - - 3.75 turns

Loader Hydraulic System

Hydraulic Cycle Time - Dump, at Maximum Reach - - - 1.4 s
Hydraulic Cycle Time - Total Cycle Time - - - 12.5 s
Maximum Working Pressure - Implement Pump - - - 3408 psi
Relief Pressure - Tilt Cylinder - - - 4931 psi
Hydraulic Cycle Time - Rackback - - - 2.2 s
Relief Pressure - Tilt Cylinder - 3rd Function Maximum Working Pressure - - - 3046 psi
Hydraulic Cycle Time - Raise, Ground Level to Maximum Lift - - - 5.2 s
Relief Pressure - Tilt Cylinder - 4th Function Maximum Working Pressure - - - 3046 psi
Maximum Flow - Implement Pump - 4th Function, Maximum Flow - - - 24 gpm
Maximum Flow - Implement Pump - 3rd Function, Maximum Flow - - - 24 gpm
Hydraulic Cycle Time - Float Down, Maximum Lift to Ground Level - - - 3.7 s
Maximum Flow - Implement Pump - - - 32 gpm

Tires

Note (2) - - - In certain applications, the loader’s productive capabilities may exceed the tire’s tonnes-km/h (ton-mph) capabilities.
Standard Size - - - 15.5 R25 L2 XTLA
Other Choices Include - - - 17.5 R25 L2 XTLA; 15.5 R25 L3 XHA2; 17.5 R25 L3 XHA2; 17.5-25 L2/L3 SGL; 17.5-25 L3 HRL D/L-3A; 17.5 R25 L2 Snow
Note (3) - - - Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model.
Note (1) - - - Other tire choices are available. Contact your Cat dealer for details.
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