الاثنين، 30 ديسمبر، 2013

Differentials part p3

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