Limited Slip Differential
This differential lock device is totally
automatic. It does not require any type of manual
operation and significantly reduces (but does not
completely eliminate) wheel
slipping.
The difference in speed, between the sun
gears and the differential casing when a
wheel
begins to slip as a result of grip loss, is impeded by
clutch assemblies that are
compressed by axial thrusts from
the bevel drive torque transmitted to the sun gears
by means
of the teeth on the two planet gears.
1.Sun gear 2.Pin 3.Half Casing 4.Differential Pin 5.Half Casing
6.Sun Gear 7.Planet gear 8.Thrust washer 9.Bolt
Z. Friction plates
Dog
Clutch Differential Lock:
With
diff lock disengaged no oil pressure is supplied, spring keeps the dog clutch
teeth apart,
oil can return to sump.
When
the diff lock switch is activated the solenoid valve opens supplying low
pressure circuit
oil
to the piston, overcoming the spring locking the
differential.
Multi-Plate
Differential Lock:
•
Actuated from Low Pressure Circuit Oil - via solenoid valve.
•
Terra lock control for automatic dis-engage and re-engagement.
1- Steering angle.
2- Brake operation.
3- Steering angle and speed.
4- Fast raise/lower switch position.
6
drive discs and 6 driven discs
Assemble
side gears, pivot pins and retaining pins.
Place
the side gear (3) complete with a test shim (2) on tool no. 293986 (1).
Assemble
the side gear and attached tool no. 293986 on the differential casing, place
the crown wheel above it and fix the crown wheel with three bolts (4). Turn the
assembly to settle.
Place
a dial test indicator gauge with the stylus on the tool screw (5), press the
tool
and set gauge to zero.
Pull
the tool (6) upwards and read the travel (H) on the gauge.
befor you can read part 1 -2
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