16
GB
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IND
Removing intake and pressure valve
• Remove the pressure vessel [14] (see Points a – c, “Care and maintenance”).
Pressure valve:
d) Using the filling strainer [8], rotate the pressure valve screw [22] counter-clockwise.
(Fig. 15)
Intake valve:
d) Screw off the hexagon nut [23] and take the cylinder [18] out of the tank.
(Fig. 16)
e) Screw the valve screw [24] out of the cylinder [18].
(Fig. 17)
Faults
Use only MESTO spare and accessory parts.
(Remove pressure vessel
→
“Care and maintenance” chapter)
Fault
Cause
Remedy
No pressure builds up in
the device.
Lever [10] can be moved
very easily.
Diaphragm [16] is defective.
Replace the diaphragm.
(Fig. 18)
Foreign object prevents closure
of the intake valve [24] and / or
pressure valve [22].
Clean intake and / or pressure
valve.
(Figs. 18, 19)
O-ring [27] incorrectly situated
in the intake valve [24].
Insert O-ring correctly into the
intake valve.
(Fig. 19)
Lever [10] is pulled
downwards.
Intake valve [24] dirty or valve
ball [26] sticking.
Clean intake valve.
(Fig. 19)
Lever [10] is pulled
upwards.
Foreign object prevents closure
of the pressure valve [22] or
defective valve disc in the
pressure valve [25].
Clean pressure valve
or
replace valve disc.
(Fig. 18)
Lever [10] locked or can
be moved downwards
with difficulty only.
Diaphragm [16] is defective.
Replace the diaphragm.
(Fig.
18)
Pressure valve [22] dirty.
Clean pressure valve.
(Fig. 18)
Filter [19]
and / or nozzle [20]
blocked.
Clean filter
(Fig. 13)
and / or
nozzle
(Fig. 14)
.
Only a spray, emerges,
there is no atomization.
Nozzle insert [21] is missing.
Position the insert in the
nozzle.
(Fig. 14)
Liquid dripping from the
nozzle.
Foreign object in the nozzle
[20] and / or the insert [21].
Clean nozzle and / or insert.
(Fig. 14)
Device sprays only when
pumped.
Pressure vessel completely
filled with liquid
Pump device empty.
Repeat after 5 fillings at the
latest.
The shut-off valve does
not close.
Liquid emerges without
the lever being activated.
O-ring [28] of the pressure bolt
[29] not greased
O-ring [27] defective
Grease the O-ring of the
pressure bolt.
(Fig. 20)
Replace the pressure bolt or
O-ring.
(Fig. 20)
Contact address for additional information
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Title page
