Disassembling and Assembling Front Drive Shaft

Disassembling and assembling front drive shaft
Tools





Information
Component overview











Tools





Disassembling drive shaft

ATTENTION:
Increased risk of accidents during disassembly work from falling parts.
^ Danger of injury and damage.
^ Watch out for falling parts.
^ Get another worker to help.

The joint on the transmission side and joint pin on the wheel side of the front axle can be replaced. The entire drive shaft must be replaced if the profile shaft is defective.





1. Remove cap from inner joint -arrow-.
2. Remove circlip using circlip pliers NR.68.





3. Remove clamp and hose clamp at the boot -arrows-. If you intend to re-use the boot, make sure not to damage it.
4. Position inner joint on the ball hub (star-shaped inner ring). Do not put it on the sheetmetal part! Press the joint off the profile shaft on a hydraulic press.





5. Release hose clamps and boots and take them off the profile shaft.





6. Clamp the drive shaft (use aluminum protective jaws). Position an aluminum mandrel on the ball hub (star-shaped inner ring) -arrow- and remove the joint pin (outer joint) by hitting it several times with a hammer -see figure-.

Assembling drive shaft

ATTENTION:
Increased risk of accidents during disassembly work from falling parts.
^ Danger of injury and damage.
^ Watch out for falling parts.
^ Get another worker to help.

The drive shaft is assembled in reverse order.
Check all parts to be re-used carefully.
Before fitting the joint, slide all boots, hose clamps and other clamps on to the drive shaft.
Do not confuse the boots. They are not identical parts.
Use new circlips and ensure that they are seated correctly.





1. Clamp the drive shaft (use aluminum protective jaws). Position an aluminum mandrel on the ball hub (star-shaped inner ring) and fit the joint -see figure- as far as it will go by hitting it several times with a hammer.
2. Fit the joint pin as far as it will go on to the drive shaft.

Note:
^ Before regreasing, remove excess grease with a lint-free cloth. Do not use cleaning agents on the joints (grease thinners!).
^ Make sure that only a small amount of grease gets into the bellows. This grease is not relevant for the actual lubrication of the joint.

Regreasing joints:
Regrease the joints with special grease. The original grease quantities for the individual joints are specified in the following table.









Joint on transmission side: regrease as required, depending on the amount of grease left in the joint. Before replacing the cap, fill in the required amount of grease.





Joint pin on wheel side: regrease as required, depending on the amount of grease left in the joint. The joint pin is supplied ex-works with approximately 80 grams of grease at the outside and approximately 40 grams at the inside.
Remove excess grease with a lint-free cloth. Push the required amount of grease through the joint to the outside. Then grease the inside of the joint.
3. Fit the large hose clamps for the two boots. The hose clamp lug - on the transmission side - must be positioned between two bores on the joint.





4. Fit the small hose clamps for the two boots between the grooves. If the boots are fitted correctly, the groove -A- will be visible.





5. Before replacing the cap (transmission side), fill in the required amount of grease. Seal the sealing faces with special sealant. When fitting the cap, use two cheese-head bolts -see figure- for fixing. Tap on alternate sides with a rubber hammer in order to fit the cap in the correct position.