1
2
3
4
5
7
6
9
8
Fig. 15:
Overflow valve
1 Allen head screws
6
Pressure screw
2 Valve cover
7
Compression spring
3 O-ring
8
Valve plate
4 O-ring
9
Housing
5 Friction pin
Remove the overflow valve
1. Unscrew the screws and remove the valve cover.
2. Be careful with the O-ring.
3. Remove the valve plate from the overflow channel, watching out for the O-ring in the process.
4. Unscrew and remove the pressure screw and at the same time remove the compression spring
and friction pin.
5. Clean and dry the guide pin from the valve cover.
6. Lightly rub the surface with emery cloth (grain size 180).
– Never oil the guide pin, this has an adverse effect on damping.
– If necessary, replace completely if there are pronounced traces of wear.
7. Clean the other parts.
8. Inspect all parts for wear and replace if necessary.
Install the overflow valve
1. Lock the thread on the pressure screw with Loctite 243.
2. Mount the friction pin, compression spring and pressure screw.
3. Locate the valve plate in the overflow channel.
4. Mount both O-rings in the respective grooves.
5. Place the valve cover on the housing.
6. Tighten the screws crosswise.
– Tightening torque:
25 Nm
Maintenance
45/60
