Tractorpedia.com

Allis Chalmers HD-4

Allis Chalmers HD-4 tractor
View Images
The Allis Chalmers HD-4 is an industrial crawler tractor produced from 1966 to 1969. It features a 3.3L 4-cylinder diesel engine producing 52 hp gross, coupled with a 3-speed torque converter transmission. The tractor has a crawler drive with external band brakes and an open operator station. It offers hydraulic pressure of 1625 psi with a pump flow of 15 gpm, optional 25 gpm. The HD-4 weighs 8500 lbs and runs on 12-inch tracks with various track width options. It is related to the Allis Chalmers 650 model produced later.
Allis Chalmers HD-4industrial crawler tractor52 hp3.3L diesel enginetorque converter transmissioncrawler tractor specs
Power-
Founded-
ModelHD-4

Technical Specifications

Detailed specifications and technical data for Allis Chalmers HD-4

Power

Engine (gross):52 hp (38.8 kW)

Engine

Model:Allis Chalmers 3.3L 4-cyl diesel
Torque:141.5 lb-ft (191.9 Nm)
Starter:electric
Fuel tank:18 gal (68.1 L)
Rated RPM:2100
Torque RPM:1600
Air cleaner:dry
Bore/Stroke:3.88x4.25 inches (99 x 108 mm)
Compression:16.25:1
Displacement:200 ci (3.3 L)
Oil capacity:8 qts (7.6 L)
Power (gross):52 hp (38.8 kW)
Starter volts:12
Coolant capacity:16 qts (15.1 L)

Variants

H-4:gasoline
HD-4:diesel
HD-4 Loader:loader-crawler

Hydraulics

Pressure:1625 psi (112.0 bar)
Pump flow:15 gpm (56.8 lpm)
Optional pump flow:25 gpm (94.6 lpm)

Mechanical

Drive:crawler
Brakes:External band brakes
Operator station:Open operator station

Production

Type:Industrial Crawler tractor
Manufacturer:Allis Chalmers
Years produced:1966 - 1969

Transmission

Type:torque converter
Gears:3 forward and reverse
Clutch:hydraulic disc
Oil capacity:12.25 qts (11.6 L)

Serial Numbers

Location:Serial number on the front of the crawler, below the grill.

Dimensions & Tracks

Gauge:51 inches (129 cm)
Width:61 inches (154 cm) *Minimum width with 10-inch shoes
Length:108.875 inches (276 cm)
Weight:8500 lbs (3855 kg)
Track width:12 inches (30 cm)
Height (hood):73.625 inches (187 cm)
Long-track width:12 inches (30 cm)
Other track widths:10 inches (25 cm), 14 inches (35 cm)
Clearance (drawbar):10 inches (25 cm)
Track area on ground:765 in² (0.5 m²)
Track length on ground:63.75 inches (161 cm)
Long-track area on ground:837 in² (0.5 m²)
Long-track length on ground:69.75 inches (177 cm)

Related Models

Allis Chalmers 650

Model:650