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938M Small Wheel Loader

Engine

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. Cat engine meets U.S. EPA Tier 4 Final, EU Stage V, Korea Stage V, and Japan 2014 emission standards. -
Engine Model Cat C7.1 ACERT** Cat C13 -
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. The net power advertised is the power available at the flywheel when the engine is equipped with fan, alternator, air cleaner, and aftertreatment. -
Note (3) **The Cat C7.1 ACERT engine meets Tier 4 Final/Stage V off-highway emission standards. Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: • 20% biodiesel FAME (fatty acid methyl ester)* • 100% renewable diesel, HVO (h -
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 - -
Net Power @ 1,700 rpm – ISO 9249:2007, SAE J1349:2011 - 404 HP -
Engine Power @ 1,700 rpm – ISO 14396:2002 - 432 HP -
Gross Torque @ 1,200 rpm – SAE J1995:2014 - 1636 lb/ft -
Gross Power @ 1,700 rpm – SAE J1995:2014 - 436 HP -
Net Torque @ 1,100 rpm – ISO 9249:2007, SAE J1349:2011 - 1515 lb/ft -
Displacement - 12.5L -
Engine Torque @ 1,200 rpm – ISO 14396:2002 - 1620 lb/ft -

Weights

Operating Weight 35778 lb 78264 lb -
Note - Weight based on a machine configuration with Bridgestone 875/65R29 VLTS L4 radial tires, full fluids, operator, standard counterweight, ride control, cold start, roading fenders, Product Link, open differential axles (front/rear), secondary steering, soun -

Buckets

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

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)
- -

Sustainability

Recyclability 94% - -

Sound

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” * For machines in European Union countries and in countries that adopt the “EU Directives.” -
Note (2) - European Union Directive “2000/14/EC” as amended by “2005/88/EC.” -
With Cooling Fan Speed at 70% of Maximum Value - Exterior Sound Power Level* - 107 -
With Cooling Fan Speed at 70% of Maximum Value - Operator Sound Pressure Level (ISO 6396:2008) - 70 dB(A) -
With Cooling Fan Speed at Maximum Speed - Exterior Sound Power Level (ISO 6395:2008) - 110 dB(A) -
With Cooling Fan Speed at Maximum Speed - Exterior Sound Pressure Level (SAE J88:2013) - 75 -
With Cooling Fan Speed at Maximum Speed - Operator Sound Pressure Level (ISO 6396:2008) - 70 dB(A) -

Service Refill Capacities

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) 40.4 gal (US) -
Fuel Tank 51.5 gal (US) 112.5 gal (US) -
Cooling System 7.9 gal (US) 13.7 gal (US) -
Crankcase - 9.8 gal (US) -
DEF Tank - 5.5 gal (US) -
Differential - Final Drives - Front - 24.3 gal (US) -
Differential - Final Drives - Rear - 24.3 gal (US) -
Transmission - 20.3 gal (US) -

Loader Hydraulic System

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

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

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). Maximum travel speed in standard vehicle with empty bucket and standard L4 tires with 914 mm (36 in) roll radius. -
Forward and Reverse - Range 1* 1-13 km/h (0.6-8 mph) - -
Forward and Reverse - Range 2 8 mile/h - -
Forward - 1 - 3.9 mile/h -
Forward - 2 - 7.3 mile/h -
Forward - 3 - 13 mile/h -
Forward - 4 - 24.5 mile/h -
Reverse - 1 - 4.4 mile/h -
Reverse - 2 - 8.4 mile/h -
Reverse - 3 - 17.4 mile/h -

Tires

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

Rear Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional) - -
Front Fixed; Locking differential (standard) - -

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. The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.9 kg (4.2 lb) of refrigerant which has a CO2 equivalent 2.717 metric tonnes (2.995 tons). -

Bucket Capacities

Bucket Range - 4.8-17.2 m³ 6.25-22.5 yd³ -

Operating Specifications

Breakout Force - 59060 lbf -
Note (1) - For a machine configuration as defined under Weight. -
Note (2) - Full compliance to ISO 14397-1:2007 Sections 1 thru 6, which requires 2% verification between calculations and testing. -
Static Tipping Load - Full 40° Turn - No Tire Deflection - 22418 kg -
Static Tipping Load - Full 40° Turn - With Tire Deflection - 46526 lb -

Hydraulic System

Implement System - Maximum Operating Pressure - 4975 psi -
Implement System - Maximum Pump Output at 2,250 rpm - 119 gal/min -
Hydraulic Cycle Time - Total - 10.1 seconds -

Dimensions

Note - All dimensions are approximate and based on machine equipped with 6.1 m3 (8.0 yd3) general purpose bucket with BOCE and Bridgestone 875/65R29 VLTS L4 radial tires. -

Dimensions - High Lift

Centerline of Rear Axle to Edge of Counterweight - 9.4 ft -
Centerline of Rear Axle to Hitch - 6.3 ft -
Ground Clearance - 1.4 ft -
Height - Top of Exhaust Pipe - 12.4 ft -
Height - Top of Hood - 10 ft -
Height - Top of ROPS - 12.6 ft -
Hinge Pin Height at Carry - 2.11 ft -
Hinge Pin Height at Maximum Lift - 16.1 ft -
Lift Arm Clearance at Maximum Lift - 13.4 ft -
Overall Length - Without Bucket - 29.11 ft -
Tread Width - 8.4 ft -
Wheel Base - 12.6 ft -
Width over Tires (Loaded) - 11.5 ft -

Dimensions - Standard Lift

Centerline of Rear Axle to Edge of Counterweight - 8.95 ft -
Centerline of Rear Axle to Hitch - 6.3 ft -
Ground Clearance - 428 mm -
Height - Top of Exhaust Pipe - 3736 mm -
Height - Top of Hood - 3036 mm -
Height - Top of ROPS - 3801 mm -
Hinge Pin Height at Carry - 2.7 ft -
Hinge Pin Height at Maximum Lift - 4741 mm -
Lift Arm Clearance at Maximum Lift - 3902 mm -
Overall Length - Without Bucket - 8597 mm -
Tread Width - 8.4 ft -
Wheel Base - 3800 mm -
Width over Tires (Loaded) - 11.5 ft -
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