Caterpillar 938K Wheel Loader

Bucket

Bucket Capacities 7 cu yd (5 cu m)
Dump Clearance at Max Raise 9 ft (3 m)

Cab

FOPS SAE J/ISO 3449 APR98 Level II, ISO 3449 1992 Level II
ROPS SAE J1040 MAY94, ISO 3471-1994

Dimensions

Bucket Pin Height – Maximum Lift 13 ft (4 m)
Carry Height 2 ft (0 m)
Centerline of Front Axle to Hitch 5 ft (2 m)
Digging Depth 4 in (10 cm)
Dump Angle at Maximum Lift 49 degrees
Dump Clearance at Maximum Lift – 45 degrees 9 ft (3 m)
Height – Center of Axle 2 ft (1 m)
Height – Top of ROPS/FOPS 11 ft (3 m)
Length – Rear Axle to Bumper 6 ft (2 m)
Overall Height – Bucket Raised 17 ft (5 m)
Overall Length 25 ft (8 m)
Rack Back Angle – Carry 45 degrees
Rack Back Angle – Maximum Lift 54 degrees
Reach at Maximum Lift and 45 degrees Dump 4 ft (1 m)
Wheel Base 10 ft (3 m)
Wheel Base Length 10 ft (3 m)

Engine

Bore 4 in (10 cm)
Displacement 402 cu in (6,588 cu cm)
EEC 80/1269 170 hp (127 kw)
Engine Model C7.1 ACERT
Gross Power 175 hp (130 kw)
Model C6.6 ACERT
Net Power 169 hp (126 kw)
Net Torque 591 lbs ft (801 nm)
Number of Cylinders 6
Rated Net Power 169 hp (126 kw)
Stroke 5 in (13 cm)
Torque Measured @ 1600 rpm

Hydraulic System

Dump Time 1.5 seconds
Lower Time 2.7 seconds
Pump Flow Capacity 50 gpm (189 lpm)
Raise Time 6.2 seconds
Relief Valve Setting 4061 psi

Loader Hydraulic System

Bore (1) 5 in (12 cm)
Bore (2) 6 in (15 cm)
Dump 1.5 seconds
Hydraulic Cycle Time 9.7 seconds
Lower, Empty, Float Down 2.7 seconds
Pump Flow – Implement Pump 50 gpm (189 lpm)
Raise 5.5 seconds
Stroke (1) 31 in (79 cm)
Stroke (2) 22 in (56 cm)
Total 9.7 seconds

Operating Specifications

Articulation Angle 40 degrees
Cooling System Fluid Capacity 9 gal (32 l)
Dump Clearance at Full Lift and 45 degrees Dump Angle 9 ft (3 m)
Front Axle/Diff Fluid Capacity 9 gal (35 l)
Fuel Capacity 52 gal (195 l)
Hydraulic System Fluid Capacity 24 gal (90 l)
Operating Weight 34,129 lbs (15,481 kg)
Rated Bucket Capacity 3-7 cu yd (3-5 cu m)
Reach – Full Lift and 45 degrees Dump 4 ft (1 m)
Rear Axle/Diff Fluid Capacity 9 gal (35 l)
Static Tipping Load – Full Turn 20,997 lbs (9,524 kg)
Tire Size 20.5
Transmission Fluid Capacity 3 gal (11 l)

Service Refill Capacities

Cooling System 8 gal (30 l)
Crankcase 5 gal (20 l)
Front 9 gal (35 l)
Fuel Tank 52 gal (195 l)
Hydraulic Tank 24 gal (90 l)
Rear 9 gal (35 l)
Transmission 3 gal (11 l)

Steering System

Maximum Working Pressure 3500 psi
Steering Angle – Each Direction 40 degrees
Steering Articulation 40 degrees
Steering Cylinder, Two, Bore 3 in (8 cm)

Tires

Size 20.5 R25, radial (L-3)

Transmission

2 Forward 8 mph (13 kph)
3 Forward 17 mph (27 kph)
4 Forward 25 mph (40 kph)
Forward – 1 8 mph (13 kph)
Max Speed – Forward 25 mph (40 kph)
Max Speed – Reverse 25 mph (40 kph)
Number of Forward Gears 4
Number of Reverse Gears 4
Reverse – 1 8 mph (13 kph)

Weights

Operating Weight 35,104 lbs (15,923 kg)
Operational Weight 35,104 lbs (15,923 kg)
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