938M Aggregate Handler Small Wheel Loader

Maximum Gross Power

188hp

Bore

4in

Stroke

5in

Displacement

427in³

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

664ft·lbf

Engine Model

Cat® C7.1

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

642ft·lbf

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

188hp

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

1800r/min

Maximum Rated Gross Power – ISO 14396

188hp

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

1600r/min

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

649ft·lbf

Note (3)

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

Note (1)

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

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.

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

173hp

Emissions

The Cat C7.1 engine meets U.S. EPA Tier 4 Final, EU Stage V and Korea Tier 4 Final emission standards.

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

627ft·lbf

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

650ft·lbf

Net Power – ISO 9249 (metric) at Minimum Fan Speed (Performance Power Mode: Range 1-4)

186hp

Net Power – ISO 9249 at Minimum Fan Speed (Performance Power Mode: Range 1-4)

184hp

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

190hp

Net Power – SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4)

183hp

Net Power – SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)

170hp

Net Power (Standard Power Mode: Range 1-3*)

1600r/min

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

176hp

Net Power (Performance Power Mode: Range 1-4)

1800r/min

Maximum Rated Gross Power – ISO 14396 (metric)

190hp

Net Power – ISO 9249 (metric) at Minimum Fan Speed (Standard Power Mode: Range 1-3*)

172hp

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

628ft·lbf

Net Power – ISO 9249 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)

170hp

Operating Weight

36839lb

Note (2)

^Aggregate Handler equipped with full counterweight, optional guards, roading fenders, cold start package, and 23.5R25 tires.

Note (1)

**Aggregate Handler machine equipped with full counterweight and optional guards.

Operating Weight (2)

16 710 kg (36,839 lb)^

Operating Weight (1)

16 199 kg (35,712 lb)**

Bucket Capacities

2.9-5.0 m3 (3.8-6.5 yd3)

ROPS

ISO 3471:2008

Note (1)

* 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.

FOPS

ISO 3449:2005 LEVEL II

Declared Sound Levels

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

Note (1)

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

Maximum Working Pressure – Steering Pump

3500psi

Note (2)

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

Maximum Flow – Steering Pump

34gal/min

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

3.1s

Cycle Times – Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm – Total Cycle Time

9.7/10.6 seconds

Tilt Cylinder, Double Acting – Rod Diameter

3.5in

Maximum Flow – Implement Pump

50gal/min

Note (2)

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

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

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

42gal/min

Note (3)

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

Lift Cylinder, Double Acting – Stroke

31.1in

Maximum Working Pressure – Implement Pump

4061psi

Lift Cylinder, Double Acting – Bore Diameter

4.7in

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

Lift Cylinder, Double Acting – Rod Diameter

2.6in

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

50gal/min

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

4351psi

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

4061psi

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.

Tilt Cylinder, Double Acting – Bore Diameter

5.9in

Relief Pressure – Tilt Cylinder

4351psi

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

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).

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

Hydraulic Tank

23.8gal (US)

Diesel Exhaust Fluid (DEF) Tank

5gal (US)

Engine Crankcase

5.3gal (US)

Cooling System

8.5gal (US)

Front Axles

9.2gal (US)

Transmission – Gear Box

2.9gal (US)

Fuel Tank

51.5gal (US)

Rear Axles

9.2gal (US)

Hydraulic System – Including Tank

44.9gal (US)

Rear Axle – Oscillation Angle by Tire Size – 23.5 R25

± 7 degrees

Rear Axle

Oscillating

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

± 10.5 degrees

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.

Brakes – Service

Outboard wet disc

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.

Front Axle

Fixed

Front Axle – Traction Aid*

Locking differential (standard)

Brakes – Parking

Spring applied hydraulically released

Rear Axle – Traction Aid – Optional

Limited slip differential

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.

Full Turn Tip Load (2)

10 662 kg (23,504 lb)^

Full Turn Tip Load (1)

10 551 kg (23,260 lb)**

Note (2)

^Aggregate Handler equipped with full counterweight, optional guards, roading fenders, cold start package, and 23.5R25 tires.

Note (1)

**Aggregate Handler machine equipped with full counterweight and optional guards.

Recyclability

94%

Power Train
- Axle Duo-Cone^™ seal guards
- Axle seal guards
- Auto idle shut down feature
- Auto idle shut down feature
- Cat C7.1 engine
  – Power modes (Standard and Performance)
  – Power by range (High Power in Range 4)
  – Turbocharged and aftercooled
  – Diesel particulate filter (Fit for Life)
- Cat C7.1 ACERT engine: – Power Modes (Standard and Performance) – Power by Range (High Power in Range 4) – Turbocharged and aftercooled – Filtered crankcase breather – Diesel particulate filter (Fit for Life)
- Coded start (requires secondary display)
- Coolant protection to –34° C (–29° F)
- Differential lock in front axle
- Differential lock in front axle
- Enclosed wet disc full hydraulic brakes
- Dry type air cleaner
- Hydraulically driven demand cooling fan
- Enclosed wet disc full hydraulic brakes
- Hydrostatic transmission with electronic control
  – Operator modes (Default, TC, Hystat, and Ice)
  – Directional Shift Aggressiveness (fast, medium, slow)
  – Rimpull control, adjust wheel torque
  – Creeper control, adjust ground speed
- Fuel priming pump, automatic
- Parking brake, electric
- Fuel water separator
- Single plane cooling package wide six fins per inch density
- Hydraulically driven demand cooling fan
- Oil sampling ports
- Intelligent hydrostatic transmission: – Power train modes – Directional Shift Aggressiveness – Rimpull control, adjust wheel torque – Creeper control, adjust ground speed
- Throttle lock and max speed limiter
- Lubed for life driveshafts
- Parking brake, electric
- Wide spaced 6 fins per inch cooling package
- S·O·SSM sampling ports
- Throttle lock and maximum speed limiter
Hydraulics
- Automatic lift lower and tilt kickouts, adjustable in-cab
- Bucket and fork modes, adjustable in-cab
- Cylinder damping at kickout and mechanical end stops
- Fine mode control (fast, medium, slow)
- Hydraulic response setting (fast, medium, slow)
- Automatic lift, lower and tilt kickouts
- Load sensing hydraulics and steering
- Bucket and Fork Modes, adjustable in-cab
- Seat-mounted hydraulic joystick controls
- Cylinder damping at kickout and end stops
- Fine Mode control in Fork Mode
- Hydraulic Response setting
- Load sensing hydraulics and steering
- Seat-mounted hydraulic joystick controls
Electrical
- Alternator, 115 amp, heavy duty
- Batteries, 1,000 CCA (2) 24V system, disconnect switch
- Back-up alarm
- Emergency shutdown switch
- Halogen work and roading lights, LED rear tail lights
- Alternator, 115-amp, heavy duty
- Product Link PRO with three year subscription
- 12V power supply in cab (2)
- Remote jump start post
- Batteries, 1,000 CCA (2) 24 volt system
- Resettable main and critical function breakers
- Back-up alarm
- Emergency shutdown switch
- Heavy duty gear reduction starter
- Product Link PRO with subscription
- Remote jump start post
- Resettable main and critical function breakers
Operator Environment
- 75 mm (3 in) High-Vis retractable seat belt, with audible alarm and indicator
- Automatic temperature control
- Cab, pressurized
- Camera, rearview
- External heated mirrors with lower parabolic
- Ground level cab door release
- 75 mm (3 in) retractable seat belt, with audible alarm and indicator
- Hydraulic control lockout
- Automatic temperature control
- Mirror, single
- Cab, enclosed and pressurized
- Lunch box storage
- Cup holders
- Radio ready speakers
- External heated mirrors with lower parabolic
- Rear window defrost, electric
- Ground level cab door release
- Column mounted multi function control – lights, wipers, turn signal
- Gauges: – Digital hour meter, odometer, tachometer, ground speed and direction indicator – Engine coolant temperature gauge – Fuel and Diesel Exhaust Fluid level – Hydraulic oil temperature gauge
- Tilt and telescopic steering wheel
- Hydraulic control lockout
- Tinted front glass
- Interior cab lighting, door and dome
- Wet arm wiper/washer, 2-speed and intermittent, front, lights, wipers, turn signal
- Interior rearview mirrors (2)
- Suspension seat, fabric
- Lunch box storage
- Operator warning system indicators
- Radio ready speakers
- Rear window defrost, electric
- Seat-mounted controls, adjustable
- Sliding glass on the side windows
- Column mounted multi function control – lights, wipers, turn signal
- Suspension seat, fabric
- Tilt and telescopic steering wheel
- Wet arm wiper/washer, front and rear
Other Standard Equipment
- Large-access enclosure doors with adjustable close/open force
- Cat optimized Z-bar linkage with parallel lift
- Recovery hitch, with pin
- Remote mounted lubrication points
- Lockable compartments and enclosures
- Large-access enclosure doors
- Parallel lift loader linkage
- Recovery hitch with pin
- Remote mounted lubrication points
- Lockable compartments and enclosures

Cab, Deluxe (standard In Europe):
- Automatic blower control
- Electrically adjustable heated mirrors (2)
- LED interior lighting
- Secondary display to adjust settings
Optional Equipment
- Autolube, integrated in secondary display
- Auxiliary flow, third and fourth function
- Differential, limited slip, rear
- Beacon light, strobe
- Cab, deluxe (standard in Europe)
  – Camera, rearview integrated into advanced display
  – Electrically adjustable external heated mirrors (2)
  – Secondary display to enable features and adjust parameters
  – LED interior lighting
  – Sunscreen, front and rear
  – Touchscreen secondary display
  – Ride control adjustable speed activation
  – Preventative maintenance reminders
  – Integrated help function (26 languages)
- Camera, roof mounted, front view with separate display
- Cold start package
  – Ether starting aid, block heater and additional batteries, 1,000 CCA (4 total)
- Counterweight, additional options
- Coupler, (Fusion and ISO 23727)
- Debris packages (low, medium, high)
- Fenders (extended cover and full coverage)
- Guarding packages
- Linkage, high lift
- Lights, auxiliary, halogen or LED with engine and DEF compartment lights
- Payload Technology
  – Cat Production Measurement (CPM)
  – CPM Printer
- Product Link ELITE with capabilities for software push, data logging, histogram and trend mapping
- Radio packages
- Rear Object Detection
- Ride Control System, adjustable through secondary display
- Seats
  – Deluxe seat – fully adjustable fabric air suspension seat with mid seat backrest
  – Premium seat – fully adjustable leather and fabric air suspension with high backrest and air lumbar support. Seat is heated and ventilated on bottom cushion and backrest.
- Steering
  – Dual mode and secondary
- Tire Pressure Monitoring (TPM)
Cold Start Package:
- Ether starting aid, block heater and additional batteries 1,000 CCA (4 in total)
Guards
- Power train, (lower, side, driveshaft and crankcase)
- Windshield and lights
- Cylinders, tilt and steering
Radio Packages:
- Radio ready with Bluetooth
- Radio, AM/FM with Bluetooth and clock
- Radio, AM/FM with CD player deluxe, weatherband, Bluetooth and clock
Seats:
- Deluxe seat – fully adjustable fabric air suspension seat with high seat backrest
- Premium seat – fully adjustable leather and fabric air suspension with high backrest and air lumbar support. Heated and cooled bottom cushion and backrest.
Steering:
- Dual mode and Secondary
Tires:
- Bias ply, 17.5, 20.5-25
- Radial, 17.5, 20.5, 23.5, 550/65, 600/65, 650/65 R25

938M Aggregate Handler Small Wheel Loader