9.3 Replace the suction / pressure valve and metering cartridge
Fig. 20: Replace the suction / pressure valve and metering cartridge
1 O-ring, hose connection, pressure side
2 Pressure valve
3 O-ring: Pump head pressure valve
4 V3 metering cartridge
5 O-ring: Pump head suction valve
6 Suction valve
7 O-ring, hose connection, suction-side
1. Remove suction and pressure valve using an open spanner
.
2. Mount all O-rings.
3. Fit metering cartridges (for pump head with 5 l/h)
(valve model V3)
4. Screw in the new suction and pressure valves in the correct position (tightening
torque of 2-3 Nm).
NOTICE!
T
ightening torques of the suction and pressure valves:
See
Ä
Chapter 9.4 ‘Installing the dosing valve in the correct position’
on page 56
Maintenance
55 417102264 Rev. 5-01.2019
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