Mesto 3558BM Mode D'emploi page 21

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