Tractor · 1960Unverified
Allis Chalmers HD3
Allis Chalmers HD3 — Agricultural Crawler tractor · 33 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
33 hp
Max power
19.5 kW
Weight
3467 kg
Hover a source tag to verify
Overview
ManufacturerAllis ChalmersReference
Agricultural Crawler tractorReference
Built in Springfield, Illinois, USAReference
The Allis-Chalmers H3 crawler was based on the diesel-powered D15 farm tractor.Reference
DrivecrawlerReference
Steeringmechanical clutchesReference
Mechanical contracting band brakesReference
Open operator station.Reference
Variants
H3gas engineReference
HD3diesel engineReference
Engine
Allis Chalmers 2.9L 4-cyl dieselReference
Drawbar (tested)19.5 kWReference
Allis ChalmersReference
dieselReference
4-cylinderReference
liquid-cooledReference
Displacement2.9 LReference
Bore/Stroke90 x 111 mmReference
Fuel systemRoosa-Master injection pumpReference
Air cleaneroil bathReference
Rated RPM1650Reference
StarterelectricReference
Starter volts12Reference
Coolant capacity8.5 LReference
Power at rated engine speed24.3 kWReference
Max power19.5 kWReference
Transmission
8-speed two-speed power shiftReference
4-speed mechanical shuttleReference
TransmissionPower DirectorReference
Typetwo-speed power shiftReference
Gears8 forward and 2 reverseReference
Clutchwet disc (Power Director)Reference
Clutchdry disc (gear)Reference
Four gears (1-4) plus reverse (R) with two-speed high/low power shift.Reference
Typemechanical shuttleReference
Gears4 forward and reverseReference
PTO & Hydraulics
PTO (tested)24.3 kWReference
Hydraulic system62.5 LReference
Typeopen centerReference
Capacity62.5 LReference
Valves1 to 3Reference
Pump flow56.8 lpmReference
Pump flow94.6 lpmReference
Rear PTOoptionalReference
Rear PTO Type540Reference
Capacities
Fuel53.0 LReference
Dimensions
Weight3467 kgReference
7-inch tracksReference
Weight1279 kgReference
Length276 cmReference
Height (hood)122 cmReference
Height (exhaust)182 cmReference
Gauge121 cmReference
Allis Chalmers HD3 attachments
bladeReference
front-end loaderReference
backhoeReference
HD3 Serial Numbers
19601001Reference
19611250Reference
19623199Reference
19636001Reference
19646945Reference
19657890Reference
19668856Reference
19679483Reference
19689700Reference
Final9949Reference
FAQ: How to read a serial number table.Reference
Attachment overview
BladeReference
Front-end loaderReference
BackhoeReference
Allis-Chalmers Mark V Backhoe
Backhoe typeAllis-Chalmers Mark V BackhoeReference
Transport height342 cmReference
Digging depth411 cmReference
Reach from pivot477 cmReference
Loading height309 cmReference
Swing Arc200°Reference
Allis Chalmers HD3 Tracks
Width17 cmReference
Width25 cmReference
Width30 cmReference
Width35 cmReference
Width45 cmReference
Test results
Diesel 8-speed crawlerMay 12 - 26, 1961Link: Nebraska Tractor Test 794 fileReference
PTO performanceReference
Fuel use9.8 l/hourReference
Drawbar performanceReference
Gear 2H used for power test.Reference
Max pull3722 kgReference
Gear 1L used for pull test.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.