Rear Axle Pressure Reservoir, Replace

R AND R PRESSURE RESERVOIR

Tightening Torques

Hex. screws for attaching pressure reservoir: 20 Nm
Thread connection on pressure reservoir: 45 Nm
Coupling nut for pressure hose on pressure reservoir and spring strut: 20 Nm
Hollow screw for ring fitting of pressure hose on pressure reservoir: 43 Nm

Note
For tightening pressure lines, use open box wrenches, but never normal open end wrenches, to prevent damage to line connections. A special tool has been developed for better access to individual line connections, e.g. on level controller.

Use only solid copper sealing rings of specified dimension for hollow screws and screw connections. Always replace sealing rings on principle.

Removal

1 Drain pressure oil system. Procedures





2 Disconnect pressure line (B2 and B3) on pressure reservoir (4).

3 Loosen the three hex. bolts for attaching pressure reservoir to frame floor.

4 Close pressure lines and connections of pressure reservoir by suitable plugs.

Installation

Note: Pressure reservoirs of 1st version (up to May 1978) can be mounted on rear axle during repairs together with pressure reservoirs of 2nd version (starting June 1978). Pressure reservoirs of 2nd version are lighter in weight and smaller (part no. 123 320 00 15).

5 Attach pressure reservoir to frame floor.





6 Connect pressure lines (B2 and B3), making sure that line (B3) designed as pressure hose is not chafing against frame floor.

7 Fill pressure oil system and check for leaks. Procedures

Attention!
When scrapping pressure reservoirs, respective safety rules must be observed.





Carefully release pressure reservoirs with gas filling screw (1st to 3rd version) on dome-shaped face, let gas flow out end completely remove screw (arrow).