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988 Wheel Loader
950 GC Wheel Loader | Front Loader
938M Waste Handler Small Wheel Loader

Engine

Engine Power - ISO 14396:2002 580 hp - 188 hp
Engine Model Cat® C18 Cat C7.1 Cat® C7.1
Rated Speed 1700/rpm - -
Peak Power Speed 1500/rpm - -
Gross Power - SAE J1995:2014 588 hp - -
Net Power - SAE J1349:2011 538 hp - -
Bore 5.7 in 4.13 in 4 in
Stroke 7.2 in 5.31 in 5 in
Displacement 1105 in³ 428 in³ 427 in³
Peak Torque - 1,200 rpm 2104 lbf·ft - -
Torque Rise 58 % - -
Note (1) Three engine emission options are available: 1. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. 2. Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. 3. Meets China Nonroad Stage IV emissio - *Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
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. - Net power ratings are tested at the reference conditions for the specified standard and denote power available at the flywheel when the engine is equipped with alternator, air cleaner, emission components and fan at specified speed.
Net Power - ISO 9249 - 225 hp -
Emissions - Tier 4/Stage V The Cat C7.1 engine meets U.S. EPA Tier 4 Final/EU Stage V and Korea Tier 4 Final 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). -
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 -
Maximum Gross Power - - 188 hp
Maximum Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4) - - 1800 r/min
Maximum Net Torque - SAE J1349 (Performance [HP+] Power Mode: Range 1-4) - - 649 ft·lbf
Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4) - - 664 ft·lbf
Maximum Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*) - - 1600 r/min
Maximum Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*) - - 173 hp
Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*) - - 642 ft·lbf
Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*) - - 627 ft·lbf
Note (3) - - No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.
Maximum Gross Power - ISO 14396 (Performance Power Mode: Range 1-4) - - 188 hp
Maximum Net Torque - ISO 9249:2007 (Performance Power Mode: Range 1-4) - - 650 ft·lbf
Maximum Net Torque - ISO 9249:2007 (Standard Power Mode: Range 1-3*) - - 628 ft·lbf
Net Power - ISO 9249 (metric) at Minimum Fan Speed (Performance Power Mode: Range 1-4) - - 186 hp
Engine Power - ISO 14396 - Metric - - 190 hp
Maximum Gross Power - ISO 14396 (metric) (Performance Power Mode: Range 1-4) - - 190 hp
Net Power - ISO 9249 at Minimum Fan Speed (Performance Power Mode: Range 1-4) - - 184 hp
Net Power - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4) - - 183 hp
Net Power (Standard Power Mode: Range 1-3*) - - 1600 r/min
Net Power (Performance Power Mode: Range 1-4) - - 1800 r/min
Maximum Gross Power - ISO 14396 (metric) (Standard Power Mode: Range 1-3*) - - 176 hp
Net Power - ISO 9249 at Minimum Fan Speed (Standard Power Mode: Range 1-3*) - - 170 hp
Net Power - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*) - - 170 hp
Net Power - ISO 9249 (metric) at Minimum Fan Speed (Standard Power Mode: Range 1-3*) - - 172 hp

Operating Specifications

Operating Weight 112574 lb - -
Bucket Capacity Range 4.7-13 m3 (6.2-17 yd3) - -
Rated Payload - Quarry Face 12.5 t - -
Rated Payload - Loose Material 16 t - -
Cat Truck Match - Standard 770 - 772 - -
Cat Truck Match - High Lift 773 - 775 - -
Note (1) - - **Dimensions listed are for a machine configured with optional counterweights, waste guarding, 80 kg (176 lb) operator, and Michelin 20.5 R25 XMINE D2 tires.
Full Turn Tip Load (1) - - 9795 kg (21,594 lb)**
Note (2) - - ^Dimensions listed are for a machine configured with standard counterweights, waste guarding, rear waste gate, 80 kg (176 lb) operator, and new solid tires.
Full Turn Tip Load (2) - - 10 741 kg (23,679 lb)^

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. *Creeper control allows maximum speed range adjustability from 1 km/h (0.6 mph) to 13 km/h (8 mph) in Range 1 through the touch screen display when equipped. Factory default is 7 km/h (4.4 mph).
Forward and Reverse - Range 2 - - 8 mile/h
Forward and Reverse - Range 4 - - 25 mile/h
Forward and Reverse - Range 3 - - 17 mile/h
Forward and Reverse - Range 1* - - 1-13 km/h (0.6-8 mph)

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit EH- Positive Flow Control, Flow Sharing - -
Lift/Tilt System - Pump 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 266 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 at 1,400-1,600 rpm 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 or R1234yf. See the label or instruction manual for identification of the gas. • If equipped with R134a (Global Warming Potential = 1430), the system - The air conditioning system on this machine contains the flourinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.9 kg of refrigerant which has a CO2 equivalent of 2.717 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 - -

Sound Performance - Tier 4 Final / Stage V

Operator Sound Pressure Level (ISO 6396:2008) 73 dB(A) - -
Machine Sound Power Level (ISO 6395:2008) 111 dB(A) - -
Operator Sound Pressure Level (ISO 6396:2008)* 72 dB(A) - -
Machine Sound Power Level (ISO 6395:2008)** 109 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) 73 dB(A) - -
Machine Sound Power Level (ISO 6395:2008) 112 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. - -

Service Refill Capacities

Fuel Tank 188 gal (US) - 51.5 gal (US)
Cooling System 31.7 gal (US) 13.2 gal (US) 8.5 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 (For Tier 4 Final/Stage V Only) 8.7 gal (US) - -
Transmission 24.3 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) - -
Note • All non-road Tier 4 Final/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 ester - -
DEF Tank - 4.2 gal (US) -
Fuel Tank Size - 76.6 gal (US) -
Hydraulic Tank - 29.6 gal (US) 23.8 gal (US)
Axles - Rear - - 9.2 gal (US)
Axles - Front - - 9.2 gal (US)
Transmission - Gear Box - - 2.9 gal (US)
Hydraulic System - Including Tank - - 44.9 gal (US)
Engine Crankcase - - 5.3 gal (US)
Diesel Exhaust Fluid (DEF) Tank - - 5 gal (US)

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 - -

Weights

Operating Weight - 41554 lb 41794 lb
Operating Weight (1) - - 17 258 kg (38,046 lb)**
Operating Weight (2) - - 18 958 kg (41,794 lb)^
Note (2) - - ^Dimensions listed are for a machine configured with standard counterweights, waste guarding, rear waste gate, 80 kg (176 lb) operator, and new solid tires.
Note (1) - - **Dimensions listed are for a machine configured with optional counterweights, waste guarding, 80 kg (176 lb) operator, and Michelin 20.5 R25 XMINE D2 tires.

Buckets

Bucket Capacities - 2.9-4.4 m³ (3.75-5.75 yd³) 3.0-5.0 m3 (3.9-6.5 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 gal/min -

Engine - Tier 4 Final/Stage IV

Emissions - Tier 4/Stage IV -

Cab

ROPS - - ISO 3471:2008
FOPS - - ISO 3449:2005 LEVEL II
Declared Sound Levels - Exterior Sound Power Level (ISO 6395:2008)* - - 101 dB(A)
Note (1) - - * Measurements were conducted at 70% of maximum engine cooling fan speed. Sound level may vary at different engine cooling fan speeds. The cab was properly installed and maintained. The measurements were conducted with the cab doors and the cab windows cl
Declared Sound Levels - Operator Sound Pressure Level (ISO 6396:2008)* - - 68 dB(A)

Loader Hydraulic System

Maximum Flow - Implement Pump - 4th Function Maximum Flow* - - 42 gal/min
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure - - 4351 psi
Relief Pressure - Tilt Cylinder - - 4351 psi
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure - - 4061 psi
Note (1) - - Implement system uses a dedicated load sensing variable displacement pump with dual double acting lift cylinders and a single double acting tilt cylinder.
Maximum Flow - Implement Pump - - 50 gal/min
Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Raise (Ground Level to Maximum Lift) - - 5.5/6.2 seconds
Note (2) - - Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Total Cycle Time - - 9.7/10.6 seconds
Maximum Working Pressure - Implement Pump - - 4061 psi
Note (3) - - * 3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the touch screen display when equipped.
Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Float Down (Maximum Lift to Ground Level) - - 2.7/2.7 seconds
Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Dump (at Maximum Lift Height) - - 1.5/1.7 seconds
Maximum Flow - Implement Pump - 3rd Function Maximum Flow* - - 50 gal/min
Lift Cylinder: Standard Lift Linkage - Stroke - - 31.1 in
Tilt Cylinder: Standard Lift Linkage - Rod Diameter - - 3.5 in
Lift Cylinder: Standard Lift Linkage - Rod Diameter - - 2.6 in
Tilt Cylinder: Standard Lift Linkage - Bore Diameter - - 5.9 in
Lift Cylinder: Standard Lift Linkage - Bore Diameter - - 4.7 in
Tilt Cylinder: Standard Lift Linkage - Stroke - - 21.9 in

Steering

Maximum Steering Torque - 0° (Straight Machine) - - 42506 ft·lbf
Maximum Steering Torque - 40° (Full Turn) - - 31398 ft·lbf
Maximum Working Pressure - Steering Pump - - 3500 psi
Steering Cycle Times - Full Left to Full Right - Maximum RPM: 90 rpm Steering Wheel Speed - - 2.3 s
Steering Cylinder, Double Acting - Bore Diameter - - 3.1 in
Steering Cylinder, Double Acting - Stroke - - 15.7 in
Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited - - 3.1 s
Note (1) - - Steering system uses a dedicated load sensing variable displacement pump with dual double acting cylinders.
Steering Cylinder, Double Acting - Rod Diameter - - 2 in
Maximum Flow - Steering Pump - - 34 gal/min
Note (2) - - Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).

Power Train

Front Axle - Traction Aid - - Locking differential
Note (1) - - Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency.
Rear Axle - - Oscillating
Note (3) - - Differential front locking axle can be engaged on the go at full torque up to 20 km/h (12.4 mph) on the 938M.
Rear Axle - Oscillation Angle by Tire Size - 20.5 R25, 550/65, 600/65, 650/65 - - ± 10.5 degrees
Rear Axle - Traction Aid - Optional - - Limited slip differential
Rear Axle - Oscillation Angle by Tire Size - 23.5 R25 - - ± 7 degrees
Brakes - Service - - Inboard wet disc
Note (2) - - Offset rims available to meet European roading requirements.
Brakes - Parking - - Spring applied hydraulically released
Front Axle - - Fixed
Rear Axle - Oscillation Angle by Tire Size - Solid Tires, 750/65, 620/65, Skidder - - ± 7 degrees

Sustainability

Recyclability - - 94%
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