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 ]
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.