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 938M Small Wheel Loader |
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Engine |
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| Maximum Gross Power | 188 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 Gross Power - 1,600 rpm - ISO 14396 (DIN) (Standard Power Mode: Range 1-3*) | 176 mhp | - | - |
| Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4) | 649 ft·lbf | - | - |
| Maximum Gross Power - 1,800 rpm - ISO 14396 (Performance Power Mode: Range 1-4) | 188 HP | - | - |
| Rated Net Power - 1,600 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Standard Power Mode: Range 1-3*) | 172 mhp | - | - |
| 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 mhp | - | - |
| 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 | - | - |
| Maximum Gross Power - 1,800 rpm - ISO 14396 (DIN) (Performance Power Mode: Range 1-4) | 190 mhp | - | - |
| 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 Gross Power - 1,600 rpm - ISO 14396 (Standard Power Mode: Range 1-3*) | 173 HP | - | - |
| Note (2) | *Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology. | - | - |
| 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 | - | - |
Weights |
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| Operating Weight | 35778 lb | - | - |
Buckets |
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| 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) | - | - |
Cab |
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| 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) |
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Sustainability |
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| Recyclability | 94% | - | - |
Sound |
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| Average Exterior Sound Pressure (ISO 6395:2008) | 101 dB(A) | - | - |
| Operator Sound Pressure (ISO 6396:2008) | 72 dB(A) | - | - |
| Note (1) | European Union Directive “2000/14/EC” | - | - |
Service Refill Capacities |
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| 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 |
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| 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 |
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| 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 |
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| 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 | - | - |
Tires |
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| 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 |
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| Rear | Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional) | - | - |
| Front | Fixed; Locking differential (standard) | - | - |
Air Conditioning System |
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| 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. | - | - |
