938M Waste Handler Small Wheel Loader

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The Cat® 938M Waste 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. A complete range of guarding and debris management solutions are available to meet the needs of the most demanding environments. Extremely low sound levels, large spacious cab and intuitive controls keep you working comfortably all day and even all night! Experience this industry benchmark.

Engine

Maximum Gross Power
188 HP
Bore
4 in
Stroke
5 in
Displacement
427 in³
Net Power (Performance Power Mode: Range 1-4)
1800 r/min
Net Power - ISO 9249 (metric) at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
172 HP
Maximum Net Torque - ISO 9249:2007 (Standard Power Mode: Range 1-3*)
628 ft·lbf
Net Power - ISO 9249 (metric) at Minimum Fan Speed (Performance Power Mode: Range 1-4)
186 HP
Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4)
664 ft·lbf
Engine Model
Cat® C7.1
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 - ISO 9249:2007 (Performance Power Mode: Range 1-4)
650 ft·lbf
Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*)
642 ft·lbf
Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*)
627 ft·lbf
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.
Note (3)
No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.
Maximum Gross Power - ISO 14396 (Performance Power Mode: Range 1-4)
188 HP
Engine Power - ISO 14396
188 HP
Engine Power - ISO 14396 - Metric
190 HP
Maximum Gross Power - ISO 14396 (metric) (Performance Power Mode: Range 1-4)
190 HP
Net Power - ISO 9249 at Minimum Fan Speed (Performance Power Mode: Range 1-4)
184 HP
Net Power - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4)
183 HP
Maximum Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*)
173 HP
Maximum Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4)
1800 r/min
Net Power (Standard Power Mode: Range 1-3*)
1600 r/min
Maximum Gross Power - ISO 14396 (metric) (Standard Power Mode: Range 1-3*)
176 HP
Net Power - ISO 9249 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
170 HP
Net Power - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
170 HP
Maximum Net Torque - SAE J1349 (Performance [HP+] Power Mode: Range 1-4)
649 ft·lbf
Maximum Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*)
1600 r/min

Weights

Operating Weight
41794 lb
Note (1)
**Dimensions listed are for a machine configured with optional counterweights, waste guarding, 80 kg (176 lb) operator, and Michelin 20.5 R25 XMINE D2 tires.
Note (2)
^Dimensions listed are for a machine configured with standard counterweights, waste guarding, rear waste gate, 80 kg (176 lb) operator, and new solid tires.
Operating Weight (2)
18 958 kg (41,794 lb)^
Operating Weight (1)
17 258 kg (38,046 lb)**

Buckets

Bucket Capacities
3.0-5.0 m3 (3.9-6.5 yd3)

Cab

ROPS
ISO 3471:2008
FOPS
ISO 3449:2005 LEVEL II
Declared Sound Levels - Exterior Sound Power Level (ISO 6395:2008)*
101 dB(A)
Declared Sound Levels - Operator Sound Pressure Level (ISO 6396:2008)*
68 dB(A)
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

Power Train

Rear Axle - Oscillation Angle by Tire Size - Solid Tires, 750/65, 620/65, Skidder
± 7 degrees
Front Axle - Traction Aid
Locking differential
Brakes - Parking
Spring applied hydraulically released
Brakes - Service
Inboard wet disc
Front Axle
Fixed
Note (1)
Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency.
Note (2)
Offset rims available to meet European roading requirements.
Note (3)
Differential front locking axle can be engaged on the go at full torque up to 20 km/h (12.4 mph) on the 938M.
Rear Axle
Oscillating
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

Loader Hydraulic System

Tilt Cylinder: Standard Lift Linkage - Stroke
21.9 in
Lift Cylinder: Standard Lift Linkage - Bore Diameter
4.7 in
Tilt Cylinder: Standard Lift Linkage - Bore Diameter
5.9 in
Lift Cylinder: Standard Lift Linkage - Rod Diameter
2.6 in
Tilt Cylinder: Standard Lift Linkage - Rod Diameter
3.5 in
Lift Cylinder: Standard Lift Linkage - Stroke
31.1 in
Maximum Flow - Implement Pump - 3rd Function Maximum Flow*
50 gal/min
Note (3)
* 3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the touch screen display when equipped.
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure
4061 psi
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure
4351 psi
Maximum Flow - Implement Pump - 4th Function Maximum Flow*
42 gal/min
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 - 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 - Total Cycle Time
9.7/10.6 seconds
Maximum Flow - Implement Pump
50 gal/min
Maximum Working Pressure - Implement Pump
4061 psi
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.
Note (2)
Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
Relief Pressure - Tilt Cylinder
4351 psi

Air Conditioning System

Air Conditioning
The air conditioning system on this machine contains the flourinated 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.

Operating Specifications

Full Turn Tip Load (2)
10 741 kg (23,679 lb)^
Full Turn Tip Load (1)
9795 kg (21,594 lb)**
Note (2)
^Dimensions listed are for a machine configured with standard counterweights, waste guarding, rear waste gate, 80 kg (176 lb) operator, and new solid tires.
Note (1)
**Dimensions listed are for a machine configured with optional counterweights, waste guarding, 80 kg (176 lb) operator, and Michelin 20.5 R25 XMINE D2 tires.

Service Refill Capacities

Cooling System
8.5 gal (US)
Diesel Exhaust Fluid (DEF) Tank
5 gal (US)
Engine Crankcase
5.3 gal (US)
Fuel Tank
51.5 gal (US)
Hydraulic System - Including Tank
44.9 gal (US)
Hydraulic Tank
23.8 gal (US)
Transmission - Gear Box
2.9 gal (US)
Axles - Rear
9.2 gal (US)
Axles - Front
9.2 gal (US)

Steering

Maximum Flow - Steering Pump
34 gal/min
Maximum Steering Torque - 0° (Straight Machine)
42506 ft·lbf
Maximum Steering Torque - 40° (Full Turn)
31398 ft·lbf
Maximum Working Pressure - Steering Pump
3500 psi
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 Cycle Times - Full Left to Full Right - Maximum RPM: 90 rpm Steering Wheel Speed
2.3 s
Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited
3.1 s
Steering Cylinder, Double Acting - Bore Diameter
3.1 in
Steering Cylinder, Double Acting - Rod Diameter
2 in
Steering Cylinder, Double Acting - Stroke
15.7 in

Transmission

Forward and Reverse - Range 1*
1-13 km/h (0.6-8 mph)
Forward and Reverse - Range 2
8 mile/h
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 touch screen display when equipped. Factory default is 7 km/h (4.4 mph).