938M Small Wheel Loader

Engine

Maximum Gross Power

188 hp

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 components and fan at specified speed.

Note (2)

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

Note (3)

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

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

427 in³

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

427 in³

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

170 hp

Maximum Net Torque - ISO 9249:2007 (Standard Power Mode: Range 1-3*)

628 ft·lbf

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

184 hp

Maximum Net Torque - ISO 9249:2007 (Performance Power Mode: Range 1-4)

650 ft·lbf

Maximum Rated Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4)

1800 r/min

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

183 hp

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

186 mhp

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

664 ft·lbf

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

649 ft·lbf

Maximum Rated Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*)

1600 r/min

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

170 hp

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

172 mhp

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

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 (Performance Power Mode: Range 1-4)

188 hp

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

190 mhp

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

173 hp

Engine Model

Cat C7.1 ACERT**

Weights

Operating Weight

35778 lb

Buckets

Bucket Capacities

2.5-5.0 m3 (3.2-6.5 yd3)

Bucket Capacities - Light Material

3.1-5.0 m³ (4.0-6.5 yd³)

Bucket Capacities - General Purpose

2.5-3.2 m³ (3.2-4.2 yd³)

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.

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.

Loader Hydraulic System

Maximum Flow - Implement Pump

50 gal/min

Maximum Working Pressure - Implement Pump

4061 psi

Relief Pressure - Tilt Cylinder

4351 psi

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

5.5 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 - Total Cycle Time

10.6 s

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 - Dump, at Maximum Lift Height

1.5 s

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

6.2 s

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

2.7 s

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

2.7 s

Maximum Flow - Implement Pump - 3rd Function Maximum Flow*

50 gal/min

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

42 gal/min

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

4061 psi

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

4351 psi

Note (1)

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

Service Refill Capacities

Cooling System

7.9 gal (US)

Diesel Exhaust Fluid (DEF) Tank

5 gal (US)

Engine Crankcase

5.3 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)

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)

Rear Axles

9.2 gal (US)

Sustainability

Recyclability

94%

Steering

Maximum Flow - Steering Pump

34 gal/min

Maximum Steering Torque - 0° (Straight Machine)

42506 ft·lbf

Maximum Working Pressure - Steering Pump

3500 psi

Steering Articulation Angle - Each Direction

40°

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

3.3 turns

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

2.3 s

Maximum Steering Torque - 40° (Full Turn)

31398 ft·lbf

Transmission

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

Forward and Reverse - Range 4

25 mile/h

Sound

Note (1)

European Union Directive “2000/14/EC”

Average Exterior Sound Pressure (ISO 6395:2008)

101 dB(A)

Operator Sound Pressure (ISO 6396:2008)

72 dB(A)

Tires

Note (1)

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

Standard Size

20.5 R25, radial (L-3)

Note (2)

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

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 (3)

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

Axles

Rear

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

Front

Fixed; Locking differential (standard)