938M Small Wheel Loader

Engine

Maximum Gross Power

188 HP

Engine Model

Cat C7.1 ACERT**

Rated Net Power - 1,600 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Standard Power Mode: Range 1-3*)

172 mhp

Rated Net Power - 1,600 rpm - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)

170 HP

Rated Net Power - 1,800 rpm - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4)

183 HP

Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4)

664 ft·lbf

Note (3)

**The Cat C7.1 ACERT engine meets Tier 4 Final/Stage V off-highway emission standards.

Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4)

649 ft·lbf

Note (1)

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 compon

Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*)

627 ft·lbf

Maximum Gross Power - 1,600 rpm - ISO 14396 (Standard Power Mode: Range 1-3*)

173 HP

Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*)

642 ft·lbf

Displacement (Performance Power Mode: Speed Range 1-4)

427 in³

Maximum Gross Power - 1,800 rpm - ISO 14396 (Performance Power Mode: Range 1-4)

188 HP

Displacement (Standard Power Mode: Speed Range 1-3*)

427 in³

Rated Net Power - 1,800 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Performance Power Mode: Range 1-4)

186 mhp

Note (2)

*Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.

Maximum Gross Power - 1,600 rpm - ISO 14396 (DIN) (Standard Power Mode: Range 1-3*)

176 mhp

Maximum Gross Power - 1,800 rpm - ISO 14396 (DIN) (Performance Power Mode: Range 1-4)

190 mhp

Weights

Operating Weight

35778 lb

Buckets

Bucket Capacities

2.5-5.0 m3 (3.2-6.5 yd3)

Bucket Capacities - General Purpose

2.5-3.2 m³ (3.2-4.2 yd³)

Bucket Capacities - Light Material

3.1-5.0 m³ (4.0-6.5 yd³)

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 equiv

Axles

Front

Fixed; Locking differential (standard)

Rear

Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional)

Cab

ROPS

ISO 3471:2008

FOPS

ISO 3449:2008 Level II

Note (1)

Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.

Note (2)

The declared dynamic operator sound pressure levels per ISO 6396:2008*, when properly installed and maintained, are:
– Standard cab: 68 ±3 dB(A)
– Deluxe cab: 66 ±2 dB(A)

Note (3)

*The measurements were conducted with the cab doors and windows closed and at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan speeds.

Service Refill Capacities

Note

DEF used in Cat SCR systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1.

Front Axles

9.2 gal (US)

Cooling System

7.9 gal (US)

Engine Crankcase

5.3 gal (US)

Diesel Exhaust Fluid (DEF) Tank

5 gal (US)

Fuel Tank

51.5 gal (US)

Hydraulic System - Including Tank

44.9 gal (US)

Hydraulic Tank

23.8 gal (US)

Transmission - Gear Box

2.9 gal (US)

Rear Axles

9.2 gal (US)

Transmission

Forward and Reverse - Range 2

8 mile/h

Forward and Reverse - Range 3

17 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 4

25 mile/h

Loader Hydraulic System

Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Dump, at Maximum Lift Height

1.5 s

Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Float Down, Maximum Lift to Ground Level

2.7 s

Maximum Flow - Implement Pump

50 gal/min

Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Raise, Ground Level to Maximum Lift

5.5 s

Relief Pressure - Tilt Cylinder

4351 psi

Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Dump, at Maximum Lift Height

1.7 s

Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Total Cycle Time

9.7 s

Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Raise, Ground Level to Maximum Lift

6.2 s

Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure

4061 psi

Maximum Flow - Implement Pump - 4th Function Maximum Flow*

42 gal/min

Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure

4351 psi

Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Total Cycle Time

10.6 s

Maximum Working Pressure - Implement Pump

4061 psi

Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Float Down, Maximum Lift to Ground Level

2.7 s

Note (1)

*3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display, when equipped.

Steering

Maximum Steering Torque - 0° (Straight Machine)

42506 ft·lbf

Maximum Flow - Steering Pump

34 gal/min

Steering Cycle Times - Full Left to Full Right - At 1,800 rpm: 90 rpm Steering Wheel Speed

2.3 s

Maximum Working Pressure - Steering Pump

3500 psi

Number of Steering Wheel Turns - Full Left to Full Right or Full Right to Full Left

3.3 turns

Maximum Steering Torque - 40° (Full Turn)

31398 ft·lbf

Steering Articulation Angle - Each Direction

40°

Shipping

UPC

94%

Sound

Note (1)

European Union Directive “2000/14/EC”

Tires

Note (1)

Other tire choices are available. Contact your Cat dealer for details.

Other Choices Include

20.5 R25, radial (L-2); 20.5 R25, radial (L-5); 20.5-25 12PR (L-2); 20.5-25 12PR (L-3); 20.5-25 16PR (L-5); 23.5 R25, radial (L-3); 650/65 R25 radial (L-3); Skidder/Agriculture; Solid Tires

Note (2)

In certain applications, the loader’s productive capabilities may exceed the tire’s tonnes-km/h (ton-mph) capabilities.

Note (3)

Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model.

Standard Size

20.5 R25, radial (L-3)