938M Aggregate Handler Small Wheel Loader

Engine

Maximum Gross Power

188HP

Bore

4in

Stroke

5in

Displacement

427in³

Note (4)

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

Note (3)

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

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.

Note (1)

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

Emissions

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

Engine Model

Cat® C7.1 ACERT™

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)

182HP

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

184HP

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

186HP

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

648ft·lbf

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

621ft·lbf

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

628ft·lbf

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*)

168HP

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*)

171HP

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

648ft·lbf

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

621ft·lbf

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

628ft·lbf

Weights

Operating Weight

36075lb

Buckets

Bucket Capacities

2.9-3.2 m3 (3.8-4.2 yd3)

Cab

ROPS

ISO 3471: 2008, FOPS: ISO 3449: 2005 LEVEL II

Note (2)

The Blue Angel environmental label is an optional attachment for Europe only.

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)* – Exterior Sound Power Level (ISO 6395:2008): 101 dB(A)*

Steering

Note (1)

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

Maximum Working Pressure - Steering Pump

3500psi

Maximum Steering Torque - 0° (Straight Machine)

42506ft·lbf

Maximum Flow - Steering Pump

34gal/min

Maximum Steering Torque - 40° (Full Turn)

31398ft·lbf

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

Note (2)

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

Steering Cylinder, Double Acting - Bore Diameter

3.1in

Steering Cylinder, Double Acting - Rod Diameter

2in

Steering Cylinder, Double Acting - Stroke

15.7in

Service Refill Capacities

Transmission - Gear Box

2.9gal (US)

Hydraulic Tank

23.8gal (US)

Hydraulic System - Including Tank

44.9gal (US)

Fuel Tank

51.5gal (US)

Engine Crankcase

5.3gal (US)

Cooling System

8.5gal (US)

Diesel Exhaust Fluid (DEF) Tank

5gal (US)

Front Axles

9.2gal (US)

Rear Axles

9.2gal (US)

Power Train

Rear Axle

Oscillating

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.

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.

Front Axle - Traction Aid**

Locking differential (standard)

Front Axle

Fixed

Brakes - Service

Outboard wet disc

Brakes - Parking

Spring applied hydraulically released

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 - Traction Aid - Optional

Limited slip differential

Operating Specifications

Full Turn Tip Load

23466lb

Loader Hydraulic System

Tilt Cylinder, Double Acting - Stroke

21.9in

Tilt Cylinder, Double Acting - Rod Diameter

3.5in

Tilt Cylinder, Double Acting - Bore Diameter

5.9in

Relief Pressure - Tilt Cylinder - 3rd Function Relief Pressure

4351psi

Relief Pressure - Tilt Cylinder - 3rd Function Maximum Working Pressure

4061psi

Relief Pressure - Tilt Cylinder

4351psi

Note (3)

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

Note (2)

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

Maximum Working Pressure - Implement Pump

4061psi

Maximum Flow - Implement Pump

50gal/min

Lift Cylinder, Double Acting - Stroke

31.1in

Lift Cylinder, Double Acting - Rod Diameter

2.6in

Lift Cylinder, Double Acting - Bore Diameter

4.7in

Maximum Flow - Implement Pump - 3rd Function*

50gal/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

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 - 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)

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

Transmission

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).