Removing and installing hydraulic pipes to lower hydraulic cylinder — AUDI

Observe rules for cleanliness => Page
61-94
.

Special tools and workshop equipment required

Mandrel 3335

Removing

Notes:

The hydraulic pipes are supplied in pairs (supply and return).
Start from hydraulic pump when removing hydraulic pipe.

Remove hydraulic pump => Page
61-101
.
Unscrew connection plate => Fig.
61-104
.

Use small screwdriver to lift spring lock washer -1- at hydraulic pipes to be removed (supply and return) over collar at connection piece and remove.
Unclip hydraulic pipes from mounts beneath bottom of convertible top compartment.
Unfasten appropriate hydraulic pipe cable tie and pull hydraulic pipe out of connection plate.
Pull hydraulic pipes through into convertible top compartment.
Remove convertible top frame => Page
61-5
.

Set down convertible top frame with mounting brackets -1- at rear on transverse wooden block and have 2 mechanics hold it in a horizontal position.

Cut through cable tie -arrow- on outside of mounting bracket.

Notes:

Fig. shows cable tie on inside.
All cable ties unfastened or cut open on removal of convertible top frame are to be re-attached in same position on installation.

Transfer letter markings on hydraulic pipes to hydraulic cylinder.
Unscrew union nuts at hydraulic cylinder.

Installing

Install in reverse order, paying attention to the following:

Note:

Take care not to interchange supply and return pipe.

Pay attention to installation position of hydraulic pipes.
Mark -arrow- must be beneath cable tie

Tighten union nuts of hydraulic pipes.
Tightening torque: 28 Nm

Lay hydraulic pipes and wires as shown and secure with 4 cable ties -1- at hydraulic cylinder.

Insert hydraulic pipe with connection piece through connection plate.
Slip sleeve -1- of mandrel 3335 over connection piece.
Slip spring lock washer -2- over sleeve and press home with mandrel 3335.

Note:

Spring lock washer -2- must be slipped completely over collar at connection piece -1-.

Coat sealing ring -3- with hydraulic fluid and slip it onto connection piece.