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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.
| Maximum Gross Power | 188 HP |
| Bore | 4 in |
| Stroke | 5 in |
| Displacement | 427 in³ |
| Maximum Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4) | 1800 r/min |
| 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 Net Torque - SAE J1349 (Performance [HP+] Power Mode: Range 1-4) | 649 ft·lbf |
| Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4) | 664 ft·lbf |
| Maximum Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*) | 1600 r/min |
| Maximum Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*) | 173 HP |
| Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*) | 642 ft·lbf |
| Engine Model | Cat® C7.1 |
| Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*) | 627 ft·lbf |
| 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 |
| Emissions | The Cat C7.1 engine meets U.S. EPA Tier 4 Final/EU Stage V and Korea Tier 4 Final emission standards. |
| Note (1) | *Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology. |
| Maximum Net Torque - ISO 9249:2007 (Performance Power Mode: Range 1-4) | 650 ft·lbf |
| 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 |
| 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 |
| Net Power (Standard Power Mode: Range 1-3*) | 1600 r/min |
| Net Power (Performance Power Mode: Range 1-4) | 1800 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 |
| Net Power - ISO 9249 (metric) at Minimum Fan Speed (Standard Power Mode: Range 1-3*) | 172 HP |
| Bucket Capacities | 3.0-5.0 m3 (3.9-6.5 yd3) |
| 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. |
| 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. |
| Full Turn Tip Load (2) | 10 741 kg (23,679 lb)^ |
| Operating Weight | 41794 lb |
| Operating Weight (1) | 17 258 kg (38,046 lb)** |
| Operating Weight (2) | 18 958 kg (41,794 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. |
| ROPS | ISO 3471:2008 |
| FOPS | ISO 3449:2005 LEVEL II |
| Declared Sound Levels - Exterior Sound Power Level (ISO 6395:2008)* | 101 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 closed.<br>– The Blue Angel environmental label is an optional attachment for Europe only. |
| Declared Sound Levels - Operator Sound Pressure Level (ISO 6396:2008)* | 68 dB(A) |
| 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. |
| Maximum Flow - Implement Pump - 4th Function Maximum Flow* | 42 gal/min |
| Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure | 4351 psi |
| Relief Pressure - Tilt Cylinder | 4351 psi |
| Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure | 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. |
| Maximum Flow - Implement Pump | 50 gal/min |
| 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 |
| Note (2) | Flow values listed are for a machine running in Performance Power Mode (1,800 rpm). |
| Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Total Cycle Time | 9.7/10.6 seconds |
| Maximum Working Pressure - Implement Pump | 4061 psi |
| Note (3) | * 3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the touch screen display when equipped. |
| 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 - Dump (at Maximum Lift Height) | 1.5/1.7 seconds |
| Maximum Flow - Implement Pump - 3rd Function Maximum Flow* | 50 gal/min |
| Lift Cylinder: Standard Lift Linkage - Stroke | 31.1 in |
| Tilt Cylinder: Standard Lift Linkage - Rod Diameter | 3.5 in |
| Lift Cylinder: Standard Lift Linkage - Rod Diameter | 2.6 in |
| Tilt Cylinder: Standard Lift Linkage - Bore Diameter | 5.9 in |
| Lift Cylinder: Standard Lift Linkage - Bore Diameter | 4.7 in |
| Tilt Cylinder: Standard Lift Linkage - Stroke | 21.9 in |
| 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 |
| Steering Cycle Times - Full Left to Full Right - Maximum RPM: 90 rpm Steering Wheel Speed | 2.3 s |
| Steering Cylinder, Double Acting - Bore Diameter | 3.1 in |
| Steering Cylinder, Double Acting - Stroke | 15.7 in |
| Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited | 3.1 s |
| Note (1) | Steering system uses a dedicated load sensing variable displacement pump with dual double acting cylinders. |
| Steering Cylinder, Double Acting - Rod Diameter | 2 in |
| Maximum Flow - Steering Pump | 34 gal/min |
| Note (2) | Flow values listed are for a machine running in Performance Power Mode (1,800 rpm). |
| Forward and Reverse - Range 2 | 8 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). |
| Forward and Reverse - Range 3 | 17 mile/h |
| Forward and Reverse - Range 1* | 1-13 km/h (0.6-8 mph) |
| Front Axle - Traction Aid | Locking differential |
| Note (1) | Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency. |
| Rear Axle | Oscillating |
| 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 - Oscillation Angle by Tire Size - 20.5 R25, 550/65, 600/65, 650/65 | ± 10.5 degrees |
| Rear Axle - Traction Aid - Optional | Limited slip differential |
| Rear Axle - Oscillation Angle by Tire Size - 23.5 R25 | ± 7 degrees |
| Brakes - Service | Inboard wet disc |
| Note (2) | Offset rims available to meet European roading requirements. |
| Brakes - Parking | Spring applied hydraulically released |
| Front Axle | Fixed |
| Rear Axle - Oscillation Angle by Tire Size - Solid Tires, 750/65, 620/65, Skidder | ± 7 degrees |
| Axles - Rear | 9.2 gal (US) |
| Fuel Tank | 51.5 gal (US) |
| Axles - Front | 9.2 gal (US) |
| Transmission - Gear Box | 2.9 gal (US) |
| Hydraulic System - Including Tank | 44.9 gal (US) |
| Engine Crankcase | 5.3 gal (US) |
| Diesel Exhaust Fluid (DEF) Tank | 5 gal (US) |
| Cooling System | 8.5 gal (US) |
| Hydraulic Tank | 23.8 gal (US) |
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