Industrial Tractor · 1966Unverified
Allis Chalmers HD-4 Loader
Allis Chalmers HD-4 Loader — Industrial Crawler tractor · 52 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
52 hp
Weight
5624 kg
Hover a source tag to verify
Overview
ManufacturerAllis ChalmersReference
Industrial Crawler tractorReference
DrivecrawlerReference
External band brakesReference
Open operator station.Reference
Variants
HD-4crawlerReference
HD-4 Loaderloader-crawlerReference
Engine
Allis Chalmers 3.3L 4-cyl dieselReference
Fuel tank68.1 LReference
Engine (gross)38.8 kWReference
Allis ChalmersReference
dieselReference
4-cylinderReference
liquid-cooledReference
Displacement3.3 LReference
Bore/Stroke99 x 108 mmReference
Power (gross)38.8 kWReference
Air cleanerdryReference
Compression16.25:1Reference
Rated RPM2100Reference
Torque191.9 NmReference
Torque RPM1600Reference
StarterelectricReference
Starter volts12Reference
Oil capacity7.6 LReference
Coolant capacity15.1 LReference
Transmission
3-speed torque converterReference
Typetorque converterReference
Gears3 forward and reverseReference
Clutchhydraulic discReference
Oil capacity11.6 LReference
PTO & Hydraulics
Pressure112.0 barReference
Pump flow56.8 lpmReference
Pump flow94.6 lpmReference
Dimensions
Weight5624 kgReference
10-inch tracksReference
Length392 cmReference
Width167 cmReference
Height (hood)187 cmReference
Clearance (drawbar)25 cmReference
Gauge129 cmReference
Allis Chalmers HD-4 Loader attachments
front-end loaderReference
HD-4 Loader Serial Numbers
Location:Serial number on the front of the crawler, below the grill.Reference
Allis Chalmers HD-4 Loader Tracks
Width25 cmReference
Length on ground177 cmReference
Area on ground0.5 m²Reference
Width30 cmReference
Area on ground0.5 m²Reference
Ground pressure0.5 barReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.