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988 Wheel Loader
950 GC Wheel Loader | Front Loader

Engine

Net Power - SAE J1349:2011 538 hp - -
Engine Power - ISO 14396:2002 580 hp - -
Gross Power - SAE J1995:2014 588 hp - -
Engine Model Cat® C18 ™ Cat C7.1 -
Rated Speed 1700/min - -
Peak Power Speed 1500/rpm - -
Emissions U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards, Brazil MAR-1 and China Nonroad Stage IV emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA, and U.S. EPA Tier 2 and EU Stage II Tier 4/Stage V -
Bore 5.7 in 4.13 in -
Stroke 7.2 in 5.31 in -
Displacement 1105 in³ 428 in³ -
Peak Torque - 1,200 rpm 2230 lb/ft - -
Torque Rise 58 % - -
Net Power - ISO 9249 - 225 hp -
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). -
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 -

Operating Specifications

Operating Weight 112574 lb - -
Rated Payload - Quarry Face 12.5 t - -
Rated Payload - Loose Material 16 t - -
Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3) - -
Cat Truck Match - Standard 770~772 - -
Cat Truck Match - High Lift 773~775 - -

Transmission

Transmission Type Cat planetary powershift - -
Forward - 1 4 mile/h 4.5 mile/h -
Forward - 2 7.2 mile/h 8 mile/h -
Forward - 3 12.7 mile/h 14.2 mile/h -
Forward - 4 21.6 mile/h 22.4 mile/h -
Reverse - 1 4.7 mile/h 4.5 mile/h -
Reverse - 2 8.3 mile/h 8 mile/h -
Reverse - 3 14.4 mile/h 14.2 mile/h -
Direct Drive - Forward 1 Lock-up disabled - -
Direct Drive - Forward 2 7.8 mile/h - -
Direct Drive - Forward 3 13.9 mile/h - -
Direct Drive - Forward 4 24.4 mile/h - -
Direct Drive - Reverse 1 5 mile/h - -
Direct Drive - Reverse 2 8.9 mile/h - -
Direct Drive - Reverse 3 15.8 mile/h - -
Note - Maximum travel speed in standard vehicle with empty bucket and standard L3 tires with 760 mm (30 in) roll radius. -

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit EH- Positive Flow Control, Flow Sharing - -
Lift/Tilt System Variable displacement piston - -
Maximum Flow at 1,400-1,860 rpm 153 gal/min - -
Relief Valve Setting - Lift/Tilt 4757 psi - -
Cylinders, Double Acting - Lift, Bore and Stroke 210 mm × 1050 mm (8.7 in × 41.3 in) - -
Cylinders, Double Acting - Tilt, Bore and Stroke 269 mm × 685 mm (8.7 in × 27 in) - -
Pilot System Variable displacement piston - -
Relief Valve Setting - Main 551 psi - -

Hydraulic Cycle Time (1,400-1,860 rpm)

Rack Back 4.5 s - -
Raise 8 s - -
Dump 2.2 s - -
Lower Float Down 3.5 s - -
Total Hydraulic Cycle Time - Empty Bucket 18.2 s - -

Hydraulic System - Steering

Steering System - Circuit Pilot, load sensing - -
Steering System - Pump Piston, variable displacement - -
Maximum Flow 71.3 gal/min - -
Relief Valve Setting - Steering 4351 psi - -
Total Steering Angle 86 ° - -
Steering Cycle Times - High Idle 3.4 s - -
Steering Cycle Times - Low Idle 5.6 s - -

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. - -

Axles

Front Fixed - -
Rear Trunnion - -
Oscillation Angle 13 ° - -

Brakes

Brakes 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 188 gal (US) - -
Cooling System 31.7 gal (US) 13.2 gal (US) -
Coolant (Validated by Test Cell Fill Quantities) 33 gal (US) - -
Crankcase 15.9 gal (US) 4.8 gal (US) -
Diesel Exhaust Fluid Tank 8.7 gal (US) - -
Transmission 31.7 gal (US) 11.9 gal (US) -
Transmission - Validated by Test Cell Fill Quantities 29 gal (US) - -
Differential - Final Drives - Front 49.1 gal (US) 10.6 gal (US) -
Differential - Final Drives - Rear 49.1 gal (US) 10 gal (US) -
Hydraulic System Factory Fill 125.5 gal (US) - -
Hydraulic System - Tank Only 63.4 gal (US) - -
DEF Tank - 4.2 gal (US) -
Fuel Tank Size - 76.6 gal (US) -
Hydraulic Tank - 29.6 gal (US) -

Sound Performance - Tier 4 Final / Stage V - Standard

Operator Sound Pressure Level (ISO 6396:2008) 73 dB(A) - -
Machine Sound Power Level (ISO 6395:2008) 111 dB(A) - -

Sound Performance - Tier 3 / Stage III - Standard

Operator Sound Pressure Level (ISO 6396:2008) 73 dB(A) - -
Machine Sound Power Level (ISO 6395:2008) 112 dB(A) - -

Dimensions (Approximate) - Standard Lift Linkage

Ground to Top of ROPS 13.8 ft - -
Ground to Top of Exhaust Stacks 14.8 ft - -
Ground to Top of Hood 10.9 ft - -
Rear Axle - Centerline to Bumper 10.5 ft - -
Front Axle Centerline to Bucket Tip 14 ft - -
Wheel Base 14.9 ft - -
Maximum Overall Length 39.3 ft - -
Ground to Lower Hitch Clearance 1.9 ft - -
Clearance at Maximum Lift 11.9 ft - -
B-Pin Height - Maximum Lift 18 ft - -
Maximum Overall Height - Bucket Raised 24.5 ft - -
Reach - Maximum Lift 6.5 ft - -

Dimensions (Approximate) - High Lift Linkage

Ground to Top of ROPS 13.8 ft - -
Ground to Top of Exhaust Stacks 14.8 ft - -
Ground to Top of Hood 10.9 ft - -
Rear Axle - Centerline to Bumper 10.5 ft - -
Front Axle Centerline to Bucket Tip 15.3 ft - -
Wheel Base 14.9 ft - -
Maximum Overall Length 40.7 ft - -
Ground to Lower Hitch Clearance 1.9 ft - -
Clearance at Maximum Lift 13.3 ft - -
B-Pin Height - Maximum Lift 19.3 ft - -
Maximum Overall Height - Bucket Raised 25.8 ft - -
Reach - Maximum Lift 6.8 ft - -

Buckets

Bucket Capacities 4.7-13 m3 (6.2-17 yd3) 2.9-4.4 m³ (3.75-5.75 yd³) -

Weights

Operating Weight - 41554 lb -

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 gal/min -

Engine - Tier 4 Final/Stage IV

Emissions - Tier 4/Stage IV -
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