Allis Chalmers industrial tractors

Allis Chalmers 918

The Allis Chalmers 918 is a backhoe loader tractor produced from 1968 to 1974. It was built in Topeka, Kansas, USA, and based on a model 190 farm tractor chassis converted into a loader-backhoe. It features an Allis-Chalmers 4.9L 6-cylinder diesel engine producing 84 hp, a 4-speed power shuttle transmission, and two-wheel drive with spur gear final drives. The tractor has an open operator station with optional cab, power steering, and disc brakes. Its hydraulics system is open center with a total flow of 52.6 gpm. The loader has a 6500 lbs lift capacity and 1.5 cubic yard bucket capacity, while the backhoe offers a digging depth of 216 inches and a bucket force of 15752 lbs. The tractor weighs 18500 lbs and has industrial tires sized 9.00-20 front and 23.1-26 rear.

Power-

Founded-

Model918

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Technical Specifications

Detailed specifications and technical data for Allis Chalmers 918

Power

Engine power	84 hp (62.6 kW)

Engine

Type	diesel
Model	Allis-Chalmers 2800
Power	84 hp (62.6 kW)
Cooling	liquid-cooled
Idle RPM	650-2425
Cylinders	6-cylinder
Fuel tank	35.5 gal (134.4 L)
Rated RPM	2200
Air cleaner	dry
Bore/Stroke	3.875x4.25 inches (98 x 108 mm)
Displacement	301 ci (4.9 L)
Firing order	1-5-3-6-2-4
Oil capacity	9 qts (8.5 L)
Starter volts	12
Coolant capacity	18 qts (17.0 L)
Compression ratio	16.25:1
Intake valve clearance	0.015 inches (hot) (0.381 mm)
Exhaust valve clearance	0.015 inches (hot) (0.381 mm)

Electrical

Ground	negative
Batteries	2
Battery AH	95
Battery volts	12
Charging system	alternator

Hydraulics

Type	open center
Pressure	2250 psi (155.1 bar)
Pump flow	37.5 gpm (141.9 lpm)
Total flow	52.6 gpm (199.1 lpm)
Loader flow	26 gpm available to the loader
Backhoe flow	Full 37.5 gpm available to the backhoe
Steering flow	6 gpm (22.7 lpm)
Steering pressure	1850 psi (127.6 bar)
Transmission flow	9.1 gpm (34.4 lpm)

Mechanical

Drive	Two-wheel drive
Brakes	Disc brakes
Final drives	spur gear
Power steering	Yes
Operator station	Open operator station. Cab optional.

Production

Type	Backhoe loader tractor
Notes	The Allis-Chalmers 918 was based on a model 190 farm tractor chassis that was converted into a loader-backhoe.
Built in	Topeka, Kansas, USA
Years produced	1968 - 1974

Transmission

Type	power shuttle
Gears	4 forward and reverse
Clutch	hydraulic wet disc
Description	Four-speed transmission with torque converter and power shuttle.

Backhoe & Loader

Dig depth	216 inches (548 cm)
Swing arc	180°
Dump angle	52 degrees
Dump height	52 inches (132 cm)
Backhoe type	Allis-Chalmers Backhoe
Bucket force	15752 lbs (7145 kg)
Bucket width	96 inches (243 cm)
Rollback angle	34 degrees
Bucket capacity	1.5 cu yd (1.1 cu m)
Bucket rotation	172°
Loader dump time	4.2s
Dipperstick force	9831 lbs (4459 kg)
Loader raise time	3.1s
Backhoe bucket width	24 inches (60 cm)
Loader rollback time	3.0s
Backhoe digging depth	216 inches (548 cm)
Loader reach (dumped)	45.5 inches (115 cm)
Loader reach (ground)	84 inches (213 cm)
Backhoe loading height	118.3 inches (300 cm)
Loader height (at pin)	134.4 inches (341 cm)
Additional bucket widths	30 inches (76 cm), 36 inches (91 cm)
Backhoe reach from pivot	246.5 inches (626 cm)
Backhoe transport height	152.3 inches (386 cm)
2-Foot flat digging depth	210 inches (533 cm)
Loader clearance (dumped)	105 inches (266 cm)

Dimensions & Tires

Length	329.5 inches (836 cm)
Weight	18500 lbs (8391 kg)
Rear tire	23.1-26, 18.4-26 (industrial)
Wheelbase	105.8 inches (268 cm)
Front tire	9.00-20, 11.00-16 (industrial)
Rear tread	72.25 inches (183 cm)
Front tread	67 inches (170 cm)
Height (backhoe)	152.3 inches (386 cm)