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938M Aggregate Handler Small Wheel Loader
992 Wheel Loader

Engine

Maximum Gross Power 188 HP - -
Bore 4 in 5.7 in -
Stroke 5 in 6.4 in -
Displacement 427 in³ 1963.5 in³ -
Maximum Gross Power - ISO 14396 (Performance Power Mode: Range 1-4) 188 HP - -
Maximum Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4) 1800 r/min - -
Maximum Rated Gross Power - ISO 14396 188 HP - -
Maximum Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*) 1600 r/min - -
Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4) 649 ft·lbf - -
Note (3) No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems. - -
Note (1) *Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology. - -
Note (2) 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. - -
Maximum Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*) 173 HP - -
Emissions The Cat C7.1 engine meets U.S. EPA Tier 4 Final, EU Stage V and Korea Tier 4 Final emission standards. U.S. EPA Tier 4 Final, U.S. EPA Tier 2 Equivalent -
Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*) 627 ft·lbf - -
Maximum Net Torque - ISO 9249 (Performance Power Mode: Range 1-4) 650 ft·lbf - -
Net Power - ISO 9249 (metric) at Minimum Fan Speed (Performance Power Mode: Range 1-4) 186 HP - -
Net Power - ISO 9249 at Minimum Fan Speed (Performance Power Mode: Range 1-4) 184 HP - -
Maximum Gross Power - ISO 14396 (metric) (Performance Power Mode: Range 1-4) 190 HP - -
Net Power - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4) 183 HP - -
Net Power - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*) 170 HP - -
Net Power (Standard Power Mode: Range 1-3*) 1600 r/min - -
Maximum Gross Power - ISO 14396 (metric) (Standard Power Mode: Range 1-3*) 176 HP - -
Net Power (Performance Power Mode: Range 1-4) 1800 r/min - -
Maximum Rated Gross Power - ISO 14396 (metric) 190 HP - -
Net Power - ISO 9249 (metric) at Minimum Fan Speed (Standard Power Mode: Range 1-3*) 172 HP - -
Maximum Net Torque - ISO 9249 (Standard Power Mode: Range 1-3*) 628 ft·lbf - -
Net Power - ISO 9249 at Minimum Fan Speed (Standard Power Mode: Range 1-3*) 170 HP - -
Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4) 664 ft·lbf - -
Engine Model Cat® C7.1 Cat® C32B -
Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*) 642 ft·lbf - -
Net Power - 814 HP -
Rated Speed - 1750 rpm -
Gross Power - SAE J1995 at 1,750 rpm - Tier 4/HRC (Highly Regulated Country) - Standard - 900 HP -
Gross Power - SAE J1995 at 1,750 rpm - Tier 4/HRC - High Ambient - 937 HP -
Gross Power - SAE J1995 at 1,750 rpm - Tier 2/LRC (Less Regulated Country) - Standard - 907 HP -
Gross Power - SAE J1995 at 1,750 rpm - Tier 2/LRC - High Ambient - 944 HP -
Gross Power - ISO 14396 at 1,750 rpm - Tier 4/HRC - Standard - 884 HP -
Gross Power - ISO 14396 at 1,750 rpm - Tier 4/HRC - High Ambient - 921 HP -
Gross Power - ISO 14396 at 1,750 rpm - Tier 2/LRC - Standard - 893 HP -
Gross Power - ISO 14396 at 1,750 rpm - Tier 2/LRC - High Ambient - 931 HP -
Net Power - SAE J1349 at 1,750 rpm - Tier 4/HRC - Standard - 814 HP -
Net Power - SAE J1349 at 1,750 rpm - Tier 4/HRC - High Ambient - 814 HP -
Net Power - SAE J1349 at 1,750 rpm - Tier 2/LRC - Standard - 823 HP -
Net Power - SAE J1349 at 1,750 rpm - Tier 2/LRC - High Ambient - 823 HP -
Peak Torque - SAE J1995 - Tier 4/HRC - Standard @ 1,200 rpm - 3514 ft·lbf -
Peak Torque - SAE J1995 - Tier 4/HRC - High Ambient @ 1,300 rpm - 3555 ft·lbf -
Peak Torque - SAE J1995 - Tier 2/LRC - Standard @ 1,200 rpm - 3537 ft·lbf -
Peak Torque - SAE J1995 - Tier 2/LRC - High Ambient @ 1,350 rpm - 3570 ft·lbf -

Weights

Operating Weight 36839 lb - -
Note (2) ^Aggregate Handler equipped with full counterweight, optional guards, roading fenders, cold start package, and 23.5R25 tires. - -
Note (1) **Aggregate Handler machine equipped with full counterweight and optional guards. - -
Operating Weight (2) 16 710 kg (36,839 lb)^ - -
Operating Weight (1) 16 199 kg (35,712 lb)** - -

Buckets

Bucket Capacities 2.9-5.0 m3 (3.8-6.5 yd3) 11.5-24.5 m³ (15-32 yd³) -

Cab

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

Steering

Maximum Flow - Steering Pump 34 gal/min - -
Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited 3.1 s - -
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 - Rod Diameter 2 in - -
Steering Cylinder, Double Acting - Stroke 15.7 in - -
Note (1) Steering system uses a dedicated load sensing variable displacement pump with dual double acting cylinders. - -
Maximum Working Pressure - Steering Pump 3500 psi - -
Note (2) Flow values listed are for a machine running in Performance Power Mode (1,800 rpm). - -

Loader Hydraulic System

Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure 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. - -
Tilt Cylinder, Double Acting - Bore Diameter 5.9 in - -
Relief Pressure - Tilt Cylinder 4351 psi - -
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 - -
Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Total Cycle Time 9.7/10.6 seconds - -
Tilt Cylinder, Double Acting - Rod Diameter 3.5 in - -
Maximum Flow - Implement Pump 50 gal/min - -
Note (2) Flow values listed are for a machine running in Performance Power Mode (1,800 rpm). - -
Tilt Cylinder, Double Acting - Stroke 21.9 in - -
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 - -
Maximum Flow - Implement Pump - 4th Function Maximum Flow* 42 gal/min - -
Note (3) * 3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped. - -
Lift Cylinder, Double Acting - Stroke 31.1 in - -
Maximum Working Pressure - Implement Pump 4061 psi - -
Lift Cylinder, Double Acting - Bore Diameter 4.7 in - -
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 - -
Lift Cylinder, Double Acting - Rod Diameter 2.6 in - -
Maximum Flow - Implement Pump - 3rd Function Maximum Flow* 50 gal/min - -

Service Refill Capacities

Rear Axles 9.2 gal (US) - -
Hydraulic System - Including Tank 44.9 gal (US) - -
Hydraulic Tank 23.8 gal (US) - -
Diesel Exhaust Fluid (DEF) Tank 5 gal (US) - -
Engine Crankcase 5.3 gal (US) - -
Cooling System 8.5 gal (US) - -
Front Axles 9.2 gal (US) - -
Transmission - Gear Box 2.9 gal (US) - -
Fuel Tank 51.5 gal (US) 385.7 gal (US) -
Cooling Systems - 59.4 gal (US) -
Crankcase - 31.7 gal (US) -
Transmission - 51.5 gal (US) -
Differential - Final Drives - Front - 96.4 gal (US) -
Differential - Final Drives - Rear - 96.4 gal (US) -
Hydraulic System Factory Fill (Implement) - 104.1 gal (US) -
Hydraulic Tank - Implement - 60.2 gal (US) -
Hydraulic Factory Fill (Steering) - 32.5 gal (US) -
Hydraulic Tank (Steering Tank Only) - 26.3 gal (US) -

Power Train

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

Transmission

Forward and Reverse - Range 4 25 mile/h - -
Note * 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 secondary display when equipped. Factory default is 7 km/h (4.4 mph). - -
Forward and Reverse - Range 1* 1-13 km/h (0.6-8 mph) - -
Forward and Reverse - Range 2 8 mile/h - -
Forward and Reverse - Range 3 17 mile/h - -
Transmission Type - Cat Planetary Powershift -
Forward - 1 - 4.3 mile/h -
Forward - 2 - 7.4 mile/h -
Forward - 3 - 12.7 mile/h -
Direct Drive - Forward 1 - Disabled -
Direct Drive - Forward 2 - 8 mile/h -
Direct Drive - Forward 3 - 14 mile/h -
Reverse - 1 - 4.7 mile/h -
Reverse - 2 - 8.1 mile/h -
Reverse - 3 - 13.9 mile/h -
Direct Drive - Reverse 1 - 5 mile/h -
Direct Drive - Reverse 2 - 8.8 mile/h -
Direct Drive - Reverse 3 - 15.3 mile/h -

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 1.9 kg of refrigerant which has a CO2 equivalent of 2.717 metric tonnes. - -

Sustainability

Recyclability 94% - -

Operating Specifications

Full Turn Tip Load (2) 10 662 kg (23,504 lb)^ - -
Full Turn Tip Load (1) 10 551 kg (23,260 lb)** - -
Note (2) ^Aggregate Handler equipped with full counterweight, optional guards, roading fenders, cold start package, and 23.5R25 tires. - -
Note (1) **Aggregate Handler machine equipped with full counterweight and optional guards. - -
Operating Weight - 233430 lb -
Rated Payload - Standard - 25.5 ton (US) -
Rated Payload - Standard (Material Handler) - 30 ton (US) -
Rated Payload - High Lift - 22.5 ton (US) -
Rated Payload - High Lift (Material Handler) - 27 ton (US) -
Bucket Capacity Range - 11.5-24.5 m³ (15-32 yd³) -
Cat Truck Match - Standard - 775/777 -
Cat Truck Match - High Lift - 785 -

Hydraulic System - Lift/Tilt

Lift/Tilt System - Circuit - Positive Flow Control -
Lift/Tilt System - Pump - Variable Displacement Piston -
Maximum Flow at 2,165 rpm - 250 gal/min -
Relief Valve Setting - Lift/Tilt - 5000 psi -
Lift Cylinder - Bore - 9.3 in -
Lift Cylinder - Stroke - 63.5 in -
Tilt Cylinder - Bore - 11.5 in -
Tilt Cylinder - Stroke - 41.5 in -

Hydraulic Cycle Times

Rack Back - 2.3 s -
Rack Back - High Lift - 2.3 s -
Raise - 9 s -
Raise - High Lift - 9 s -
Dump - 2.6 s -
Dump - High Lift - 2.6 s -
Float Down - 3.2 s -
Float Down - High Lift - 3.2 s -
Total Hydraulic Cycle Time - 17.1 s -

Axles

Front - Fixed -
Rear - Trunnion -
Oscillation Angle - ±9° -

Brakes

Brakes - ISO 3450:2011 -

Hydraulic System - Steering

Steering System - Circuit - Pilot, Load Sensing -
Steering System - Pump - Piston, Variable Displacement -
Maximum Flow at 1,400-1,850 rpm - 70 gal/min -
Steering Cut Off Pressure - 4500 psi -
Total Steering Angle - 80° -
Steering Cycle Times - Low Idle - 4.9 s -
Steering Cycle Times - High Idle - 3.1 s -

Cooling System

Ambient Capability Hydraulically Driven Demand Fan - Standard - 109.4 °F -
Ambient Capability, Hydraulically Driven Demand Fan - High - 131 °F -

Sound Performance - Standard

Note - Machine Sound Level (ISO 6396:2008) - 116 dB(A) -

Sound Performance - Suppression

Note - Machine Sound Level (ISO 6396:2008) - 113 dB(A) -

Dimensions - Standard Lift - Approximate

Ground to Top of Exhaust Stacks - 17 ft -
Ground to Top of ROPS - 18.3 ft -
Ground to Top of Hood - 13.1 ft -
Ground to Center of Front Axle - 4.3 ft -
Ground to Bumper Clearance - 3.8 ft -
Ground to Lower Hitch Clearance - 2.2 ft -
Reach - Maximum Lift - 8.2 ft -
Clearance at Maximum Lift - 15.2 ft -
B-Pin Height - Maximum Lift - 22.8 ft -
Maximum Overall Height - Bucket Raised - 30.8 ft -
Rear Axle - Centerline to Bumper - 13.5 ft -
Tread Width - 10.83 ft -
Rack Back Angle - Maximum Lift - 56.9 degrees -
Dump Angle at Maximum Lift - -49.5 degrees -
Rack Back Angle - Ground Level - 40.2 degrees -
Width - Over Tires - With Bulge - 14.74 ft -
Rack Back Angle - Carry - 48.9 degrees -
Wheel Base - 19.3 ft -
Maximum Overall Length - 50.8 ft -
Front Axle Centerline to Bucket Tip - 18 ft -

Dimensions - High Lift - Approximate

Tread Width - 10.83 ft -
Rack Back Angle - Ground Level - 42.5 degrees -
Dump Angle at Maximum Lift - -48.1 degrees -
Rack Back Angle - Maximum Lift - 56.2 degrees -
Width - Over Tires - With Bulge - 14.75 ft -
Rack Back Angle - Carry - 51.6 degrees -
Ground to Top of Exhaust Stacks - 17 ft -
Ground to Top of ROPS - 18.3 ft -
Ground to Top of Hood - 13.1 ft -
Ground to Center of Front Axle - 4.3 ft -
Ground to Bumper Clearance - 3.8 ft -
Ground to Lower Hitch Clearance - 2.2 ft -
Reach - Maximum Lift - 7.6 ft -
Clearance at Maximum Lift - 17.2 ft -
B-Pin Height - Maximum Lift - 24.5 ft -
Maximum Overall Height - Bucket Raised - 32 ft -
Rear Axle - Centerline to Bumper - 13.5 ft -
Wheel Base - 19.3 ft -
Maximum Overall Length - 51.6 ft -
Front Axle Centerline to Bucket Tip - 18.8 ft -
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