28/40 Bosch Rexroth AG A4VG Series 40 | RE 92004-01-S031/08.2015
Valves
7.5 Seal shuttle valve
This section describes how you seal the shuttle valve.
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Fig. 16: Shuttle valve
1 Pump case
2 O-ring
3 O-ring
4 Shuttle valve
5 Stop screw
6 Sleeve
7 Piston
8 Threaded plug
To replace the valve seal:
1. Loosen and remove the stop screw (5).
2. Loosen the shuttle valve (4) and screw the shuttle valve (4) out of the pump
case (1).
3. Check both O-rings and O-ring grooves for damage, wear or contaminants.
4. Exchange the O-rings (2+3) for new ones.
5. Screw the shuttle valve (4) into the pump case (1).
6. Tighten the shuttle valve with 50 Nm.
7. Screw the stop screw (5) into the pump case (1).
8. Tighten the stop screw with 5.5 Nm.
Procedure
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