Accumulator: Service and Repair

REMOVAL AND INSTALLATION OF ACCUMULATOR

Preceding work: Pressure oil system emptied. Procedures

Model 124 Station Wagon





Pressure line (S1, S2, P4):
disconnect, connect using open box wrench 116 589 00 17 00. Check for correct routing. Replace solid copper sealing rings.

M10 x 1 = 14 Nm
M16 x 1.5 = 30 Nm

Self-locking hex. nuts with washers
unscrew, tighten and replace, 20 Nm.

Accumulator (4):
observe information on scrapping.

Model 124 Station Wagon





1 Remove cover (70a) of loading area.

2 Unscrew six recessed head screws (arrows) and remove cover plate.

Left Rear Accumulator:

3 Disconnect pressure line (S1, S2, P4) at accumulator (4) using open box wrench.

4 Seal pressure lines and connections of accumulator with suitable plugs.

Installation Note:
Screw in banjo bolt with new solid copper sealing rings and connect pressure line (P4) so that it does not chafe on frame.

M10 x 1 = 14 Nm
M16 x 1.5 = 30 Nm





5 Unscrew three self-locking hex. nuts (arrows). Remove washers and accumulator.

Installation Note:
Replace hex. self-locking nuts, 20 Nm

Notes On Disposal
The relevant safety provisions are to be observed when discarding accumulators.





In order to eliminate the residual pressure in the accumulator, drill carefully into the convex side with a 3 mm drill until the gas flows out. To prevent accidents caused by the outflowing gas and to protect against drilling chips, goggles and gloves must be worn. The hole is to be drilled with the minimum possible feed.

6 Install in reverse sequence.