ENGINE
- GM Detroit Model 3-71, 3 cylinder vertical in-line 2 stroke diesel,
bore 4.25", stroke 5.00".
- Engine Speed 1,200 - 1,500 rpm. Compression ignition.
- Displacement 71 cubic inch per cylinder, compression ratio 16:1
CRANKSHAFT
- Drop - forged. Carbon Steel "Tocco Hardened."
Counter Balanced.
BEARINGS
- Four Main Bearings 3.5" dia. 1.125" long.
Copper Lead. Steel backed. Replacement Type.
- Con Rod Bearings 2.750" dia. 2.125" long.
CONNECTING ROD
- Drop - Forged. Heat - treated carbon
steel. Rifle drilled for lubrication.
CYLINDERS
- Replacement liner. Hardened Alloy Cast Iron.
Slip Fit.
LUBRICATION
- By submerged Gear Type Pump. Warm oil is forced by pump
through an Oil Cooler into Main and upper cylinder Block Galleries.
A replacement element type filter removes undesirable
solids and moisture.
COLD STARTING AID
- A highly volatile liquid is injected into the air intake system to
assist cold starting under extreme conditions.
HORSEPOWER at 1,500 Engine R.P.M.
- 85.0 Max. engine crankshaftat 1500 rpm.
- 78.0 Max. belt, 65.4 Rated belt.
- 70.0 Max. drawbar, 52.5 Rated drawbar.
FUEL
- Diesel. Fuel tank capacity 30.0 imp.gallons.
FUEL SYSTEM
- Full Flow System used to cool Injector Units and eliminate air.
Fuel Oil is drawn through Primary Filter by by Fuel Pump
and forced through Secondary Filter.
INJECTORS
- General Motors Unit Type. Capacity 70 cub. mm.
COOLING
- Water circulated through engine and radiator by centrifugal pump
mounted on engine.
- Temperature controlled by thermostat.
- Temperature Gauge on Instrument Panel.
GOVERNOR
- Mechanical. Controlled by hand lever.
ELECTRICAL
- 12 Volt starting and lighting system.
CLUTCH
- Over-centre type, driving plate is carried by involute
splines in fly-wheel ring gear. A ball-bearing
clutch release collar is provided. Clutch operation is by
conveniently placed hand lever, which also permits operation
from behind tractor platform to facilitate coupling up of implements.
TRANSMISSION
- A three speed and reverse sliding spur gearbox mounted on the rear
of the engine, providing nine forward gears and three reverse.
- Gears are forged from high grade alloy steel and case hardened.
DIFFERENTIAL
- Bevel - gear type with hypoid crown wheel and pinion, running
at four times rear wheel speed.
FINAL DRIVES
- Two large ( 18 inch diameter ) case-hardened bull-
gears meshing with pinions on the differential shaft.
- Rear axles are 3.50 inches in diameter, high tensile steel.
Rear wheels are mounted on long splines through tapered
clamping sleeves.
STEERING BRAKES
- Individual steering brakes with separate pedals to assist steering
under exceptional circumstances.
SERVICE BRAKE
- A powerful brake operates on both rear wheels through compensating
mechanism.
STEERING
- Recirculating ball type steering gear.
- Connected to front wheels by adjustable draglink and track
rods fitted with ball joints.
POWER TAKE-OFF
- Splined shaft is to the A.S.A.E. standard of 1.375" 6B.
- Shaft speed is 540 rpm at 1200 engine rpm. Clockwise
rotation (viewed from rear).
- This power take-off is capable of transmitting full engine
power continuosly.
BELT PULLEY
- Belt Pulley attachment is provided with bevel-gear drive at
rear of differential housing.
- Pulley - 13.0 in. diameter x 7.0 in. wide.
- Pulley Speed - 810 rpm. at 1200 R.P.M.
- Belt Speed - 2,740 ft. per minute
TYRE AND WHEEL EQUIPMENT
- Front - 8.25 x 20 x 6 ply on split cast wheels.
- Rear - 13.50 x 32 x 6 ply duals.
- Rear - 18.00 x 26 x 6 ply single.(optional)
OVERALL DIMENSION
- Length 135.0 in., Width 104.0 in. on duals )
- Height ( top of steering wheel ) 90.0 in.
- Wheelbase 83.0 in.
- Outside Turning radius 12ft.
OVERALL WEIGHT
- On 13.50 x 32 dual tyres - 10,000 lbs.
STANDARD EQUIPMENT
- Electric Lighting.
- Electric Starting.
- Power Take-Off.
- Pneumatic Tyres Dual Rear.
- Spark Arrestor.
- Hour Meter.
- Cold Start Air Heater Unit.
| SPECIFICATIONS AND GEAR CHART ( M.P.H. on Standard
Tyres ) |
| Eng.rpm |
1 Low |
2 Low |
3 Low |
1 Int |
2 Int |
3 Int |
1 High |
2 High |
3 High |
| 1,200 |
2.5 |
3.1 |
3.8 |
4.4 |
5.3 |
6.4 |
10.3 |
12.5 |
15.0 |
| 1,500 |
3.1 |
4.0 |
4.8 |
5.4 |
6.5 |
7.8 |
12.8 |
15.6 |
18.8 |
|
