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938M Aggregate Handler Small Wheel Loader
Maximum Gross Power
188 hp
140 kW
Operating Weight
36,839 lb
16,710 kg
Bucket Capacities
2.9-5.0 m3 (3.8-6.5 yd3)
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SPECIFICATIONS
The Cat® 938M Aggregate Handler sets a new standard for productivity, fuel efficiency and comfort. A high torque, low speed C7.1 engine works in concert with an intelligent hystat power train to deliver fuel efficiency as standard. The optimized Z-bar loader linkage combined with long wear life Performance Series buckets delivers improved payloads and bucket longevity. Extremely low sound levels, large spacious cab and intuitive controls keep you working comfortably all day and even all night! Experience this industry benchmark.
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.
Buckets
Bucket Capacities
2.9-5.0 m3 (3.8-6.5 yd3)
Cab
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
Declared Sound Levels<br>– Operator Sound Pressure Level (ISO 6396:2008): 68 dB(A)*<br>– Exterior Sound Power Level (ISO 6395:2008): 101 dB(A)*
Engine
Maximum Gross Power
188 hp
140 kW
Bore
4 in
105 mm
Stroke
5 in
135 mm
Displacement
427 in³
7.01 l
Maximum Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4)
1,800 r/min
1,800 r/min
Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4)
664 ft·lbf
900 N·m
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 (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.
Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4)
649 ft·lbf
880 N·m
Maximum Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*)
1,600 r/min
1,600 r/min
Maximum Rated Gross Power - ISO 14396
188 hp
140 kW
Maximum Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*)
173 hp
129 kW
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*)
627 ft·lbf
850 N·m
Maximum Net Torque - ISO 9249 (Performance Power Mode: Range 1-4)
650 ft·lbf
882 N·m
Net Power - ISO 9249 (metric) at Minimum Fan Speed (Performance Power Mode: Range 1-4)
186 hp
137 kW
Net Power - ISO 9249 at Minimum Fan Speed (Performance Power Mode: Range 1-4)
184 hp
137 kW
Maximum Gross Power - ISO 14396 (metric) (Performance Power Mode: Range 1-4)
190 hp
140 kW
Net Power - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4)
183 hp
137 kW
Net Power - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
170 hp
127 kW
Net Power (Standard Power Mode: Range 1-3*)
1,600 r/min
1,600 r/min
Maximum Gross Power - ISO 14396 (metric) (Standard Power Mode: Range 1-3*)
176 hp
129 kW
Net Power (Performance Power Mode: Range 1-4)
1,800 r/min
1,800 r/min
Maximum Rated Gross Power - ISO 14396 (metric)
190 hp
140 kW
Net Power - ISO 9249 (metric) at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
172 hp
127 kW
Maximum Net Torque - ISO 9249 (Standard Power Mode: Range 1-3*)
628 ft·lbf
852 N·m
Net Power - ISO 9249 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
170 hp
127 kW
Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*)
642 ft·lbf
870 N·m
Engine Model
Cat® C7.1
Maximum Gross Power - ISO 14396 (Performance Power Mode: Range 1-4)
188 hp
140 kW
Loader Hydraulic System
Note (2)
Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
Tilt Cylinder, Double Acting - Stroke
21.9 in
555 mm
Maximum Working Pressure - Implement Pump
4,061 psi
28,000 kPa
Lift Cylinder, Double Acting - Rod Diameter
2.6 in
65 mm
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*
42 gpm
160 L/min
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure
4,351 psi
30,000 kPa
Note (3)
* 3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped.
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure
4,061 psi
28,000 kPa
Lift Cylinder, Double Acting - Stroke
31.1 in
789 mm
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.
Lift Cylinder, Double Acting - Bore Diameter
4.7 in
120 mm
Tilt Cylinder, Double Acting - Bore Diameter
5.9 in
150 mm
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
Relief Pressure - Tilt Cylinder
4,351 psi
30,000 kPa
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*
50 gpm
190 L/min
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
3.5 in
90 mm
Maximum Flow - Implement Pump
50 gpm
190 L/min
Operating Specifications
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.
Power Train
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
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
Note (2)
Offset rims available to meet European roading requirements.
Rear Axle
Oscillating
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
Brakes - Parking
Spring applied hydraulically released
Front Axle - Traction Aid*
Locking differential (standard)
Rear Axle - Traction Aid - Optional
Limited slip differential
Service Refill Capacities
Cooling System
8.5 gal (US)
32 l
Fuel Tank
51.5 gal (US)
195 l
Hydraulic Tank
23.8 gal (US)
90 l
Diesel Exhaust Fluid (DEF) Tank
5 gal (US)
19 l
Engine Crankcase
5.3 gal (US)
20 l
Front Axles
9.2 gal (US)
35 l
Transmission - Gear Box
2.9 gal (US)
11 l
Rear Axles
9.2 gal (US)
35 l
Hydraulic System - Including Tank
44.9 gal (US)
170 l
Steering
Steering Cylinder, Double Acting - Bore Diameter
3.1 in
80 mm
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 Cylinder, Double Acting - Stroke
15.7 in
399 mm
Steering Cylinder, Double Acting - Rod Diameter
2 in
50 mm
Maximum Flow - Steering Pump
34 gpm
130 L/min
Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited
3.1 s
3.1 s
Maximum Working Pressure - Steering Pump
3,500 psi
24,130 kPa
Steering Cycle Times - Full Left to Full Right - Maximum RPM: 90 rpm Steering Wheel Speed
2.3 s
2.3 s
Sustainability
Recyclability
94%
Transmission
Forward and Reverse - Range 3
17 mile/h
27 km/h
Forward and Reverse - Range 2
8 mile/h
13 km/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 4
25 mile/h
40 km/h
Weights
Operating Weight
36,839 lb
16,710 kg
Operating Weight (2)
16 710 kg (36,839 lb)^
Note (2)
^Aggregate Handler equipped with full counterweight, optional guards, roading fenders, cold start package, and 23.5R25 tires.
Operating Weight (1)
16 199 kg (35,712 lb)**
Note (1)
**Aggregate Handler machine equipped with full counterweight and optional guards.
- 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
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