Clutch A
Clutch A
Disassembling
- Rotate clutch "A".
- Remove circlip - 1 - and remove plate pack - 2 - from cylinder "A".
- Press plate spring down under shop press using installation bracket (T10276).
- Remove split retaining ring - 1 -.
- Release shop press.
- Remove dished washer.
- Press ring - 2 - with O-ring - 3 - out of cylinder "A" - 1 -.
CAUTION!
Wear eye protection.
- Carefully press piston "A" out of cylinder " A" with compressed air, to do so plug two other oil bores using fingers.
Assembling
CAUTION!
Before assembling, check clutch components "A" for wear and damage => [ Clutch A ] Clutch A.
- Replace O-rings - 2 - (green), - 3 - (black) and - 5 - (black) for piston "A" - 4 -.
- Press piston "A" - 4 - into cylinder " A" - 1 - as far as stop.
- Position plate spring - 6 -.
7 Split retaining ring
- Press plate spring down under shop press using installation bracket (T10276).
- Install split retaining ring - 1 -.
• Bent inner side at right angle of retaining ring faces downward.
- Release shop press.
- Insert waved washer - 2 - into cylinder "A " - 1 -.
- Install outer plate - 3 - and coated plate - 4 - alternately.
- Install thick outer plate - 5 -.
• Ensure rounded edges of thick outer clutch disc faces toward lining disc - 4 - and not toward circlip - 6 -. This improves circlip contact surface.
- Insert circlip - 6 -.
Adjust clutch "A" air gap
- Place clutch "A" on pre-tensioning tool (T10285).
- Place plate (T10293) on outer clutch disc "A".
• Plate must not touch circlip all around.
- Insert pressure unit (T10285/1) with centering pin into bore of plate.
- Align clutch "A" on plate of pre-tensioning tool.
• The pressure unit must be centrally positioned under spindle thrust piece.
- Turn spindle of pre-tensioning tool downward.
• The markings at the inspection hole of the pressure unit must align - arrow -.
- Apply Digital depth gauge (VAS 6087) at upper edge of cylinder "A", as depicted in illustration.
- Apply measuring tongue on outer plate and note measuring value.
- Mark contact point on cylinder "A".
- Repeat measurement at 2 other points of outer plate, 120° offset each, and mark contact points.
- Average over 3 measured values under load.
- Release spindle and remove plate.
- Reach with both hands into clutch "A" and pull plate pack upward until stop.
- When disc pack is pulled up, measure distance between upper edge of cylinder "A" and outer disc (2nd technician required) at one of the marked points.
- Repeat measurement at 2 other marked points of outer plate.
- Average over 3 measured values when pate pack is pulled up.
- Determine air gap on basis of the following calculations:
- Subtract average of measured values when plate pack is pulled up from average of measured values under load.
Clutch "A" air gap - Automatic Transmission 01V Front Wheel Drive
Clutch "A" air gap - Automatic Transmission 01V All Wheel Drive
If specified value is not obtained:
- Determine new circlip - 1 - according to the following table.
• Disregard - 2 -.
• Air gap too small: Install respectively thinner circlip.
• Air gap too large: Install respectively thicker circlip.
- Check air gap of circlip again after inserting.
- Replace O-ring - 3 - on ring - 2 -.
- Press ring into cylinder "A" - 1 - until stop.