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Allis Chalmers HD-41

Allis Chalmers HD-41 tractor
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The Allis Chalmers HD-41 is an industrial crawler tractor produced from 1970 to 1973. It features a powerful Cummins VT-1710 12-cylinder turbocharged diesel engine with 524 hp (390.7 kW). The tractor uses a 3-speed power shift transmission by Twin Disc and has a crawler drive with planetary final drives. It offers an open operator station with an optional cab. The HD-41 has a fuel capacity of 300 gallons and a hydraulic system capacity of 52 gallons with an open center hydraulic system operating at 2000 psi. The tractor weighs 101,500 lbs and runs on 32-inch wide tracks. Various front-mount blades are available as attachments, including 204", 240", and 136" blades with different dimensions and weights.
Allis Chalmers HD-41industrial crawler tractorCummins VT-1710 engine524 hppower shift transmissioncrawler tractor specstractor attachments
Power-
Founded-
ModelHD-41

Technical Specifications

Detailed specifications and technical data for Allis Chalmers HD-41

Power

Engine power:524 hp (390.7 kW)

Engine

Type:turbocharged diesel
Model:Cummins VT-1710
Power:524 hp (390.7 kW)
Cooling:liquid-cooled
Cylinders:12-cylinder
Rated RPM:2100
Air cleaner:dry
Bore/Stroke:5.50x6.00 inches (140 x 152 mm)
Displacement:1710 ci (28.0 L)
Oil capacity:80 qts (75.7 L)
Starter type:electric
Coolant capacity:152 qts (143.9 L)

Tracks

Width:32 inches (81 cm)
Area on ground:9184 in² (5.9 m²)
Ground pressure:11 psi (0.8 bar)
Length on ground:143.5 inches (364 cm)

Capacity

Fuel:300 gal (1135.5 L)
Hydraulic system:52 gal (196.8 L)

Dimensions

Gauge:100 inches (254 cm)
Width:133.5 inches (339 cm)
Length:242 inches (614 cm)
Weight:101500 lbs (46040 kg)
Shipping weight:101500 lbs (46040 kg)
Ground clearance:22.25 inches (56 cm)
41HC dozer length:307 inches (779 cm)
41HS dozer length:305 inches (774 cm)
41HU dozer length:331 inches (840 cm)

Hydraulics

Type:open center
Capacity:52 gal (196.8 L)
Pressure:2000 psi (137.9 bar)
Pump flow:140 gpm (529.9 lpm)

Mechanical

Drive:crawler
Final drives:planetary
Operator station:Open operator station. Cab optional.

Production

Type:Industrial Crawler tractor
Manufacturer:Allis Chalmers
Years produced:1970 - 1973

Attachments

136" Blade:Allis Chalmers 41HC, front-mount, 136 inches width (345 cm), 57 inches height (144 cm), 40 inches lift (101 cm), 52 inches cut (132 cm), 15560 lbs (7058 kg)
204" Blade:Allis Chalmers 41HS, front-mount, 204 inches width (518 cm), 72 inches height (182 cm), 61 inches lift (154 cm), 22 inches tilt (55 cm), 24 inches cut (60 cm), 16800 lbs (7620 kg)
240" Blade:Allis Chalmers 41HU, front-mount, 240 inches width (609 cm), 86 inches height (218 cm), 61 inches lift (154 cm), 26 inches tilt (66 cm), 24 inches cut (60 cm), 22430 lbs (10174 kg)

Transmission

Type:power shift
Gears:3 forward and reverse
Manufacturer:Twin Disc