20
Fault
Cause
Remedy
No pressure builds up in
the device.
Pump lever with handle [11]
can be moved very easily.
Diaphragm [24] is defec-
tive.
Replace the diaphragm.
(Fig. 14)
Foreign object prevents
the valve disc [28] from
closing
Clean intake or pressure valve
(Figs. 11 and 14)
Valve disc [28] of the
intake or pressure valve
defective.
Replace valve disc.
(Figs. 11 and 14)
Pump lever with handle [11]
is pulled downwards.
Intake valve [27] sticking.
Clean intake valve. (Fig. 11)
Pump lever with handle [11]
is pulled upwards.
Foreign object prevents
closure of the pressure
valve [35] or defective
valve disc [28].
Clean pressure valve or replace
valve disc. (Fig. 14)
Pump lever with handle [11]
locked or can be moved
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only.
Diaphragm [24] and/or
guide bush [49] not lubri-
cated.
Lubricate diaphragm and/or
guide bush (Figs. 10, 20)
Pressure valve [35] dirty.
Clean pressure valve. (Fig. 14)
Filter [38] and / or nozzle
[41] blocked.
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nozzle (Fig. 18).
Only a jet emerges, there is
no atomization.
Nozzle insert [40] is mis-
sing.
Position the insert in the nozzle.
(Fig. 18)
Nozzle [41] dirty.
Clean nozzle (Fig. 18)
Liquid dripping from the
nozzle.
Foreign object in the nozz-
le [41] or / and the insert
[40].
Clean nozzle and / or insert.
Device sprays only when
pumped.
Pressure vessel [34] com-
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Pump device completely empty.
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latest.
The shut-off valve does not
close.
Liquid comes out without
the pump lever being acti-
vated.
O-ring [47] of the pressure
bolt [46] not greased.
O-ring [47] defective.
Grease the O-ring of the pressu-
re bolt. (Fig. 19)
Replace pressure bolt or
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shut-off valve“)
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Faults
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