Allis Chalmers

Allis Chalmers HD3

The Allis Chalmers HD3 is an agricultural crawler tractor produced from 1960 to 1968. It was built in Springfield, Illinois, USA and is based on the diesel-powered D15 farm tractor. The HD3 variant features a 2.9L 4-cylinder diesel engine and offers an 8-speed two-speed power shift or a 4-speed mechanical shuttle transmission. It has a crawler drive with mechanical clutch steering and mechanical contracting band brakes. The tractor has an open operator station and optional rear PTO. It supports various attachments including blades, front-end loaders, and backhoes.

Power36 hp[P]

Founded1960 - 1968

ModelHD3

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Technical Specifications

Detailed specifications and technical data for Allis Chalmers HD3

Power

PTO (tested)	32.53 hp (24.3 kW)
Drawbar (tested)	26.17 hp (19.5 kW)

Engine

Type	diesel
Cooling	liquid-cooled
Starter	electric
Cylinders	4-cylinder
Rated RPM	1650
Air cleaner	oil bath
Bore/Stroke	3.562x4.375 inches (90 x 111 mm)
Fuel system	Roosa-Master injection pump
Displacement	175 ci (2.9 L)
Engine model	Allis Chalmers 2.9L 4-cyl diesel
Starter volts	12
Coolant capacity	9 qts (8.5 L)

Capacity

Fuel	14 gal (53.0 L)
Hydraulic system	16.5 gal (62.5 L)

Variants

H3	gas engine
HD3	diesel engine

Hydraulics

Type	open center
Valves	1 to 3
Capacity	16.5 gal (62.5 L)
Pump flow	15 gpm (56.8 lpm), 25 gpm (optional) (94.6 lpm)

Mechanical

Drive	crawler
Brakes	Mechanical contracting band brakes
Steering	mechanical clutches
Operator station	Open operator station

Production

Type	Agricultural Crawler tractor
Notes	The Allis-Chalmers H3 crawler was based on the diesel-powered D15 farm tractor.
Built in	Springfield, Illinois, USA
Years produced	1960 - 1968

Attachments

Blade	80" Blade, 90" Blade
Backhoe	Allis-Chalmers Mark V Backhoe
80" Blade	Cut10 inches (25 cm) Lift38 inches (96 cm) Tilt8 inches (20 cm) ModelAllis-Chalmers 1080 Mountfront-mount Width80 inches (203 cm) Height24 inches (60 cm) Weight1560 lbs (707 kg) Angling25° Featureshydraulic-lift, hydraulic-angle
90" Blade	Cut11 inches (27 cm) Lift48 inches (121 cm) Tilt11 inches (27 cm) ModelAllis-Chalmers 1090 Mountfront-mount Width90 inches (228 cm) Height24 inches (60 cm) Weight1942 lbs (880 kg) Angling25° Featureshydraulic-lift, manual-angle
Front-end loader	Allis-Chalmers 1066 Loader
Allis-Chalmers 1066 Loader	Weight2379 lbs (1079 kg) Dump angle50° Bucket width60 inches (152 cm), 66 inches (167 cm) Lift capacity3600 lbs (full at pin) (1632 kg) Breakout force8000 lbs (3628 kg) Rollback angle60° Clearance (dumped)96 inches (243 cm)
Allis-Chalmers Mark V Backhoe	Weight2821 lbs (1279 kg) Swing Arc200° Backhoe typeAllis-Chalmers Mark V Backhoe Digging depth162 inches (411 cm) Loading height122 inches (309 cm) Reach from pivot188 inches (477 cm) Transport height135 inches (342 cm)

Transmission

Type	two-speed power shift
Gears	8 forward and 2 reverse
Notes	Four gears (1-4) plus reverse (R) with two-speed high/low power shift.
Clutch	wet disc (Power Director), dry disc (gear)
Transmission	Power Director
Mechanical shuttle	Typemechanical shuttle Gears4 forward and reverse
Transmission options	8-speed two-speed power shift, 4-speed mechanical shuttle

Serial Numbers

1960	1001
1961	1250
1962	3199
1963	6001
1964	6945
1965	7890
1966	8856
1967	9483
1968	9700
Final	9949

Dimensions & Tracks

Gauge	48 inches (121 cm)
Length	108.75 inches (276 cm)
Weight	7645 lbs (3467 kg)
Height (hood)	48.3 inches (122 cm)
Height (exhaust)	71.7 inches (182 cm)
Tracks width options	7 inches (17 cm), 10 inches (25 cm), 12 inches (30 cm), 14 inches (35 cm), 18 inches (45 cm)

Power Take-off (PTO)