Input Shaft, Checking for Wear

Input Shaft, Checking for Wear





1 - Bearing "A" in the input shaft cover

• After removing the input shaft cover, always replace bearing " A"

3 - Input shaft cover

• Checking => [ Check input shaft cover ]

4 - Piston

• Checking for wear => [ Checking pistons and thrust plate for wear ]

5 - Pressure plate

• Checking for wear => [ Checking pistons and thrust plate for wear ]

8 - Lining discs

• Check the version and number => [ Check number and version of the lining discs. ]

11 - Input shaft cylinder

• Check running and sealing surfaces for wear => [ Check input shaft cylinder running and sealing
surfaces for wear ].

• Checking for signs of wear on the lining discs => [ Check inner circumference of input shaft cylinder
for scoring from lining discs. ]

13 - Oil pipe

• Checking for wear => [ Checking oil pipe for wear ]

Checking pistons and thrust plate for wear





- Remove pistons - 1 - from thrust plate - 2 -.

Check the thrust plate - 2 -:

- Check thrust plate running and sealing surfaces - arrow A - for wear.

- Check thrust plate running and sealing surfaces - arrow D - for wear.

• If running or sealing surfaces - arrow A - show grooves, scratches or scoring, thrust plate - 2 - must be replaced.

• If running or sealing surfaces - arrow D - show grooves, scratches or scoring, thrust plate - 2 - and pistons - 1 - must be replaced.

Checking pistons - 1 -:

- Check seal - arrow B - on outer piston circumference - 1 - for damage.

- Check running surface - arrow C - on interior piston circumference - 1 - on shaft.

• If seal - arrow B - is damaged or piston running surface - arrow C - shows grooves, scratches, scoring or uneven thickness from wear, piston - 1 - must be replaced.

Check input shaft cylinder running and sealing surfaces for wear





- Check input shaft running and sealing surfaces - arrow A - for wear.

• Shaft seal in input shaft cover seals at this sealing surface - arrow A -.

• Light scoring from shaft seal is normal.

- Check running surface - arrow B - of bearing " A" (ball bearing for transmission input shaft) in the input shaft cover for wear.

- Check shaft seal - arrow C - for damage.

• If seal - arrow C - is damaged or shaft running surfaces - arrow B - or - arrow A - show deep scoring or grooves, entire input shaft must be replaced.

Check inner circumference of input shaft cylinder for scoring from lining discs.





- Check inner circumference of input shaft cylinder for scoring from lining discs - arrows -.

• If there is scoring on interior circumference of input shaft cylinder from lining discs - arrows -, entire input shaft must be replaced.

Checking oil pipe for wear





- Check oil pipe seal - 1 - for damage.

• The seal must have a gap - arrow B -.

• If gap - arrow B - is completely closed, oil pipe must be replaced.

- Check oil pipe contact surfaces - arrows - and rotor blades - arrow A - for wear and damage.

• If seal - 1 - or rotor blades - arrow A - are damaged or contact surfaces - arrow - show deep scoring or grooves, oil pipe must be replaced.

• The O-ring - 2 - must be replaced.

- Check contact surface of the oil pipe in the suction jet pump => [ Chain, Disc Set I and II, Bearing C and Suction Jet Pump, Checking for Wear ] [1][2]Chain, Disc Set I and II, Bearing C and Suction Jet Pump, Checking for Wear

Check number and version of the lining discs.





Depending on the version of the transmission as well as the type of complaint, the following changes can be made:

• Exchange input shaft lining discs set from 6 lining discs to the newer 7 lining discs version.

• Exchange input shaft lamellae set with rectangular-shaped pattern for a newer version with trapezoidal-shaped pattern.





Check input shaft cover





- Check cover sealing surface - arrow - and cover for damage.

• Surface of sealing surfaces must not show any damage.

• Input shaft cover must not be broken cracked.

- If the sealing surface or the cover are damaged, then replace the input shaft cover.