938M Small Wheel Loader

Product Description

The Cat 938M Small Wheel Loader sets the standard for productivity, fuel efficiency and operator comfort. The improved optimized Z-bar loader linkage delivers the quick loading performance of a traditional Z-bar with the parallelism and load handling capability of a tool carrier. A high torque, low speed C7.1 ACERT engine works in concert with an intelligent hystat power train to deliver fuel efficiency as standard. Meets Tier 4 Final/Stage V emission standards with an environmentally friendly, Clean Emission Module designed to manage itself so you can concentrate on your work. Experience the new industry benchmark.

Product Details

Engine

Maximum Gross Power 188 HP

Displacement (Standard Power Mode: Speed Range 1-3*) 427 in³

Maximum Rated Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*) 1600 r/min

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 (Standard Power Mode: Range 1-3*) 642 ft·lbf

Maximum Gross Power - 1,600 rpm - ISO 14396 (DIN) (Standard Power Mode: Range 1-3*) 176 mhp

Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4) 649 ft·lbf

Maximum Gross Power - 1,800 rpm - ISO 14396 (Performance Power Mode: Range 1-4) 188 HP

Rated Net Power - 1,600 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Standard Power Mode: Range 1-3*) 172 mhp

Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*) 627 ft·lbf

Rated Net Power - 1,800 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Performance Power Mode: Range 1-4) 186 mhp

Maximum Rated Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4) 1800 r/min

Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4) 664 ft·lbf

Displacement (Performance Power Mode: Speed Range 1-4) 427 in³

Maximum Gross Power - 1,800 rpm - ISO 14396 (DIN) (Performance Power Mode: Range 1-4) 190 mhp

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.

Engine Model Cat C7.1 ACERT**

Rated Net Power - 1,600 rpm - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*) 170 HP

Maximum Gross Power - 1,600 rpm - ISO 14396 (Standard Power Mode: Range 1-3*) 173 HP

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.

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

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)

Weights

Operating Weight 35778 lb

Cab

ROPS ISO 3471:2008

FOPS ISO 3449:2008 Level II

Service Refill Capacities

Transmission - Gear Box 2.9 gal (US)

Engine Crankcase 5.3 gal (US)

Cab

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.

Loader Hydraulic System

Note (1) *3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display, when equipped.

Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Raise, Ground Level to Maximum Lift 5.5 s

Steering

Maximum Working Pressure - Steering Pump 3500 psi

Transmission

Forward and Reverse - Range 3 17 mile/h

Loader Hydraulic System

Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Total Cycle Time 9.7 s

Steering

Steering Articulation Angle - Each Direction 40°

Sound

Note (1) European Union Directive “2000/14/EC”

Service Refill Capacities

Hydraulic System - Including Tank 44.9 gal (US)

Rear Axles 9.2 gal (US)

Loader Hydraulic System

Relief Pressure - Tilt Cylinder 4351 psi

Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Total Cycle Time 10.6 s

Service Refill Capacities

Front Axles 9.2 gal (US)

Steering

Maximum Flow - Steering Pump 34 gal/min

Loader Hydraulic System

Maximum Working Pressure - Implement Pump 4061 psi

Tires

Note (1) Other tire choices are available. Contact your Cat dealer for details.

Loader Hydraulic System

Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure 4061 psi

Tires

Standard Size 20.5 R25, radial (L-3)

Loader Hydraulic System

Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Dump, at Maximum Lift Height 1.7 s

Steering

Number of Steering Wheel Turns - Full Left to Full Right or Full Right to Full Left 3.3 turns

Loader Hydraulic System

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

Tires

Note (2) In certain applications, the loader’s productive capabilities may exceed the tire’s tonnes-km/h (ton-mph) capabilities.

Loader Hydraulic System

Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Float Down, Maximum Lift to Ground Level 2.7 s

Maximum Flow - Implement Pump - 4th Function Maximum Flow* 42 gal/min

Transmission

Forward and Reverse - Range 4 25 mile/h

Service Refill Capacities

Diesel Exhaust Fluid (DEF) Tank 5 gal (US)

Loader Hydraulic System

Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure 4351 psi

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.

Axles

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

Front Fixed; Locking differential (standard)

Steering

Maximum Steering Torque - 0° (Straight Machine) 42506 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).

Loader Hydraulic System

Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Float Down, Maximum Lift to Ground Level 2.7 s

Tires

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

Service Refill Capacities

Hydraulic Tank 23.8 gal (US)

Cab

Note (1) Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.

Service Refill Capacities

Fuel Tank 51.5 gal (US)

Steering

Maximum Steering Torque - 40° (Full Turn) 31398 ft·lbf

Service Refill Capacities

Cooling System 7.9 gal (US)

Transmission

Forward and Reverse - Range 1* 1-13 km/h (0.6-8 mph)

Tires

Note (3) Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model.

Loader Hydraulic System

Maximum Flow - Implement Pump 50 gal/min

Steering

Steering Cycle Times - Full Left to Full Right - At 1,800 rpm: 90 rpm Steering Wheel Speed 2.3 s

Transmission

Forward and Reverse - Range 2 8 mile/h

Cab

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)

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.

Sound

Average Exterior Sound Pressure (ISO 6395:2008) 101 dB(A)

Operator Sound Pressure (ISO 6396:2008) 72 dB(A)

Loader Hydraulic System

Maximum Flow - Implement Pump - 3rd Function Maximum Flow* 50 gal/min