938M Small Wheel Loader

Product Specs

• Weights

Operating Weight

36216lb

Operating Weight

35778lb

• Buckets

Bucket Capacities

2.5-5.0 m3 (3.3-6.5 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)

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)

Bucket Capacities

2.5-5.0 m3 (3.2-6.5 yd3)

• Engine

Engine Model

Cat® C7.1 ACERT™

Note

No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.

Note

Spark arrestor performance as standard – Meets performance requirements of EN 1834-1.2000 (section 6.4.2 Visual Test).

Rated Net Power

182HP

Maximum Rated Gross Power - ISO 14396

188HP

Maximum Rated Gross Power - ISO 14396 (DIN)

190HP

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

1800r/min

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

188HP

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

190HP

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

183HP

Stroke

5in

Rated Net Power - 1,800 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Performance Power Mode: Range 1-4)

184HP

Note

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

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

186mhp

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

664ft·lbf

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

649ft·lbf

Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Performance Power Mode: Range 1-4)

628lb/ft

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

1600r/min

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

173HP

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

175HP

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

170HP

Rated Net Power - 1,600 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)

169HP

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

172mhp

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

642ft·lbf

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

627ft·lbf

Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Standard Power Mode: Range 1-3*)

628lb/ft

Displacement

427in3

Bore

4in

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

427in³

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

176mhp

Emissions

Engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.

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

188HP

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

427in³

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

190mhp

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

173HP

Engine Model

Cat C7.1 ACERT**

Maximum Gross Power

188HP

Bore

4in

Stroke

5in

Displacement

427in³

Emissions

Engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.

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.

Note (4)

Spark arrestor performance as standard – Meets performance requirements of EN 1834-1.2000 (section 6.4.2 Visual Test).

Maximum Gross Power

188hp

Note

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.

• Cab

Note

Declared sound levels per ISO 6396:2008* while in Performance Power Mode: – Standard cab: 68 ±3 dB(A) and Deluxe cab

Note

* 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.

ROPS

ISO 3471: 2008

FOPS

ISO 3449: 2005 LEVEL II

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.

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)

• Loader Hydraulic System

Note (2)

Implement system uses a dedicated load sensing variable displacement pump with dual double acting lift cylinders and a single double acting tilt cylinder.

Note (3)

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 - 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 - Total Cycle Time

9.7/10.6 seconds

Note (1)

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

Maximum Flow – Implement Pump

50gal/min

Maximum Flow - Implement Pump - 3rd Function*

50gal/min

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

42gal/min

Maximum Working Pressure – Implement Pump

4061psi

Relief Pressure – Tilt Cylinder

4351psi

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

4061psi

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

4351psi

Lift Cylinder: Double Acting – Bore Diameter

4.7in

Lift Cylinder: Double Acting – Rod Diameter

2.6in

Lift Cylinder: Double Acting – Stroke

31.1in

Tilt Cylinder: Double Acting – Bore Diameter

5.9in

Tilt Cylinder: Double Acting – Rod Diameter

3.5in

Tilt Cylinder: Double Acting – Stroke

21.9in

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

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*

50gal/min

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

5.5s

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

9.7s

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

10.6s

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

1.7s

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

1.5s

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

6.2s

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

2.7s

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

2.7s

Lift Cylinder, Double Acting - Bore Diameter

4.7in

Lift Cylinder, Double Acting - Rod Diameter

2.6in

Lift Cylinder, Double Acting - Stroke

31.1in

Maximum Flow - Implement Pump

50gal/min

Maximum Working Pressure - Implement Pump

4061psi

Relief Pressure - Tilt Cylinder

4351psi

Tilt Cylinder, Double Acting - Bore Diameter

5.9in

Tilt Cylinder, Double Acting - Rod Diameter

3.5in

Tilt Cylinder, Double Acting - Stroke

21.9in

• Steering

Note (1)

Steering system uses a dedicated load sensing variable displacement pump with dual double acting cylinders.

Note (2)

Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).

Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited

3.1s

Steering Cycle Times - Full Left to Full Right - Maximum RPM: 90 rpm Steering Wheel Speed

2.3s

Steering Cylinder: Double Acting – Bore Diameter

3.1in

Steering Cylinder: Double Acting – Rod Diameter

2in

Steering Cylinder: Double Acting – Stroke

15.7in

Maximum Flow – Steering Pump

34gal/min

Maximum Working Pressure – Steering Pump

3500psi

Maximum Steering Torque – 0° (Straight Machine)

42506lbf-ft

Maximum Steering Torque - 40° (Full Turn)

31398ft·lbf

Steering Articulation Angle - Each Direction

40°

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

3.3turns

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

2.3s

Maximum Flow - Steering Pump

34gal/min

Maximum Steering Torque - 0° (Straight Machine)

42506ft·lbf

Maximum Working Pressure - Steering Pump

3500psi

Steering Cylinder, Double Acting - Bore Diameter

3.1in

Steering Cylinder, Double Acting - Rod Diameter

2in

Steering Cylinder, Double Acting - Stroke

15.7in

• Power Train

Note (1)

Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency.

Note (2)

Differential front locking axle can be engaged on the go at full torque up to 20 km/h (12.4 mph) on the 938M.

Note (3)

Offset rims available to meet European roading requirements.

Front Axle

Fixed

Front Axle - Traction Aid - Standard

Locking differential

Rear Axle

Oscillating

Rear Axle - Oscillation Angle by Tire Size - 20.5 R25, 550/65, 600/65, 650/65

± 10.5 degrees

Rear Axle - Oscillation Angle by Tire Size - 23.5 R25

± 7 degrees

Rear Axle - Oscillation Angle by Tire Size - Solid Tires, 750/65, 620/65, Skidder

± 7 degrees

Rear Axle - Traction Aid - Optional

Limited slip differential

Brakes: Service

Outboard wet disc

Brakes: Park

Spring applied hydraulically released

Brakes - Parking

Spring applied hydraulically released

Brakes - Service

Outboard wet disc

Front Axle

Fixed

Rear Axle

Oscillating

• 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).

Note (cont'd)

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

8mile/h

Forward and Reverse - Range 3

17mile/h

Forward and Reverse - Range 4

25mile/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).

• Service Refill Capacities

Fuel Tank

51.5gal

Cooling System

8.5gal

Engine Crankcase

5.3gal

Transmission (Gear Box)

2.9gal

Front Axles

9.2gal (US)

Rear Axles

9.2gal (US)

Hydraulic System (Including Tank)

44.9gal

Hydraulic Tank

23.8gal

Diesel Exhaust Fluid (DEF) Tank

5.0gal

Note

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

Cooling System

7.9gal (US)

Diesel Exhaust Fluid (DEF) Tank

5gal (US)

Engine Crankcase

5.3gal (US)

Fuel Tank

51.5gal (US)

Hydraulic System - Including Tank

44.9gal (US)

Hydraulic Tank

23.8gal (US)

Transmission - Gear Box

2.9gal (US)

• Operating Specifications

Full Turn Tip Load

22107lb

Full Turn Tip Load

22107lb

• Tires

Standard Size

20.5 R25, radial (L-3)

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)

Other Choices Also Include:

23.5 R25, radial (L-3); 650/65 R25 radial (L-3); Skidder/Agriculture; Flexports Gen II

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

Front

Fixed; Locking differential (standard)

Rear

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

Rear

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

Front

Fixed; Locking differential (standard)

• Sound

Note (1)

European Union Directive “2000/14/EC”

• 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.