HygroMatik HPS250, Руководство по эксплуатации

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Seite 82
15.2.2 Replacing the valves
The high-pressure-pump has 3 identical
valves on the low-pressure and high-pres-
sure side. If the pump can no longer build up
the required pressure, worn valves may be
the cause. To replace the valves,
Replace-
ment kit KIT123
is required which includes 6
valves and 6 O-rings.
Method
» Disassemble the valve holders (13)
with a suitable tool.
» Detach valve (14) from valve holder
(13) (6 valves).
» Remove O-rings (15) in the valve
seat with a smal screw driver or sim-
ilar.
» For reassembling, lay the new O-
ring (15) in the valve seat.
» Put the valve into the holder.
» Screw the holder with the valve into
the pump.
15.2.3 Replacing the seals on the
water side
If water leaks occur on the pump, the seals
must be replaced. In order to do this, the
water supply must be turned off, the system
must be switched off at the main switch and
the water connection hoses must be disman-
tled from the pump.
Method
» Remove the 8 screws (15).
» Separate valve block from drive
block.
13
Valve holders (6 pcs.)
12
13
12
13
Valve holder aund valve (removed
and separated)
15
O-Ring in valve seat
15
Valve block securing screws (8 pcs.)