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Ziegler CAT

938M Wheel Loader

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 engine works in concert with an intelligent hystat power train to deliver fuel efficiency as standard. Meets U.S. EPA Tier 4 Final/EU Stage IV 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.

Brand: Caterpillar

Photos

Videos

  • M Series Small Wheel Loaders | At Work
  • M Series Small Wheel Loaders | Overview
  • Built in Quality: Cat® Small Wheel Loaders Manufactured in Clayton, NC
  • Safety and Service Overview | Cat® 926M, 930M, 938M Small Wheel Loader
  • Kick-Outs, Snubbing, Wrap-Out and Soft Detents | M Series Small Wheel Loader Operator Tips
  • Secondary Display Navigation | M Series Small Wheel Loader Operator Tips
  • Preventative Maintenance | M Series Small Wheel Loader Operator Tips
  • Coded Start Feature/Individual Operator Profiles | M Series Small Wheel Loader Operator Tips
  • Creeper Control | M Series Small Wheel Loader Operator Tips
  • Rim Pull | M Series Small Wheel Loader Operator Tips
  • Efficient Hystat Operation | M Series Small Wheel Loader Operator Tips
  • Throttle Lock | M Series Small Wheel Loader Operator Tips
  • Fine Mode Control and Perfect Parallelism | M Series Small Wheel Loader Operator Tips
  • Quick Steer | M Series Small Wheel Loader Operator Tips
  • Power Train Modes | M Series Small Wheel Loader Operator Tips
  • Cab Controls and Features | M Series Small Wheel Loader Operator Tips
  • Hydro-mechanical Applications | M Series Small Wheel Loader Operator Tips
  • Third and Fourth Auxiliary Flow | M Series Small Wheel Loader Operator Tips
  • Reversing Fan | M Series Small Wheel Loader Operator Tips
  • Customize Your Experience | M Series Small Wheel Loader Operator Tips
  • Diesel Exhaust Fluid (DEF) Fill Alarm | M Series Small Wheel Loader Operator Tips
  • Cat® Production Measurement (CPM) | M and K Series Small Wheel Loader Operator Tips
  • Cat® Production Measurement (CPM) Updates | M and K Series Small Wheel Loader Operator Tips
  • Differential Lock | M Series Small Wheel Loader Operator Tips
  • Tire Pressure Monitoring System | M Series Small Wheel Loader Operator Tips
  • Tire Pressure Monitoring System Updates | M Series Small Wheel Loader Operator Tips
  • Engine Idle Shutdown | M and K Series Small Wheel Loader Operator Tips
  • Continuously Adjustable Creep Mode | M and K Series Small Wheel Loader Operator Tips
  • Operator ID and Machine Security | M and K Series Small Wheel Loader Operator Tips

360° View

Exterior

Model shown represents features on all Cat® Small Wheel Loaders except where indicated.

Interior

Model shown represents features on all Cat® Small Wheel Loaders except where indicated.

Specifications

  • Engine
    SpecValue
    Maximum Gross Power 173 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 Rated Gross Power - ISO 14396 (DIN) (Standard Power Mode: Range 1-3*) 176 HP
    Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4) 649 ft·lbf
    Maximum Rated Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*) 173 HP
    Rated Net Power - 1,600 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Standard Power Mode: Range 1-3*) 172 HP
    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 HP
    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
    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 Rated Gross Power - ISO 14396 (Performance Power Mode: Range 1-4) 188 HP
    Note (2) *Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
    Maximum Rated Gross Power - ISO 14396 (DIN) (Performance Power Mode: Range 1-4) 190 HP
    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
    SpecValue
    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
    SpecValue
    Operating Weight 35778 lb
  • Cab
    SpecValue
    ROPS ISO 3471:2008
    FOPS ISO 3449:2008 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.
    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)
  • Service Refill Capacities
    SpecValue
    Transmission - Gear Box 2.9 gal (US)
    Engine Crankcase 5.3 gal (US)
    Hydraulic System - Including Tank 44.9 gal (US)
    Rear Axles 9.2 gal (US)
    Front Axles 9.2 gal (US)
    Diesel Exhaust Fluid (DEF) Tank 5 gal (US)
    Note DEF used in Cat SCR systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1.
    Hydraulic Tank 23.8 gal (US)
    Fuel Tank 51.5 gal (US)
    Cooling System 7.9 gal (US)
  • Loader Hydraulic System
    SpecValue
    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
    Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Total Cycle Time 9.7 s
    Relief Pressure - Tilt Cylinder 4351 psi
    Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Total Cycle Time 10.6 s
    Maximum Working Pressure - Implement Pump 4061 psi
    Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure 4061 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 - 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
    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 - Float Down, Maximum Lift to Ground Level 2.7 s
    Maximum Flow - Implement Pump 50 gal/min
    Maximum Flow - Implement Pump - 3rd Function Maximum Flow* 50 gal/min
  • Steering
    SpecValue
    Maximum Working Pressure - Steering Pump 3500 psi
    Steering Articulation Angle - Each Direction 40°
    Maximum Flow - Steering Pump 34 gal/min
    Number of Steering Wheel Turns - Full Left to Full Right or Full Right to Full Left 3.3 turns
    Maximum Steering Torque - 0° (Straight Machine) 42506 ft·lbf
    Maximum Steering Torque - 40° (Full Turn) 31398 ft·lbf
    Steering Cycle Times - Full Left to Full Right - At 1,800 rpm: 90 rpm Steering Wheel Speed 2.3 s
  • Transmission
    SpecValue
    Forward and Reverse - Range 3 17 mile/h
    Forward and Reverse - Range 4 25 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 2 8 mile/h
  • Sound
    SpecValue
    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
    SpecValue
    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
    SpecValue
    Rear Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional)
    Front Fixed; Locking differential (standard)
  • Air Conditioning System
    SpecValue
    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.