16
GB
IRL
AUS
USA
NZ
CDN
IND
Pressure valve
d) Using the filling strainer [9], rotate the pressure valve screw [24] counter-clockwise.
(Fig. 15)
Intake valve
d) Rotate the cylinder [19] 90° counter-clockwise and take it out of the tank.
(Fig. 17)
e) Using a screwdriver (starting at the recess [26]), detach the intake valve [27] from the
cylinder [19].
(Fig. 18)
Re-assembly:Position the cylinder [19] on the intake valve [27] (opening [30] exactly
over the mushroom of the pressure relief valve [28], Fig. 20) and press the cylinder [19]
and the intake valve [27] together (Fig. 21)
Faults
Use only MESTO spare and accessory parts.
(Remove pressure vessel
→
section “Care and maintenance” chapter)
Fault
Cause
Remedy
No pressure builds up in
the device.
Lever [11] can be moved
very easily.
Diaphragm [17] is defective.
Replace the diaphragm.
(Fig.
16)
Foreign object prevents closure
of the pressure valve [24] or
intake valve [27]
Clean intake or pressure valve
(Figs. 16 and 19)
Valve disc [29] of the intake
valve defective.
Replace valve disc.
(Fig. 19)
Pressure relief valve [27] dirty. Clean pressure relief valve.
(Fig. 19)
Lever [11] is pulled
downwards.
Intake valve [28] sticking.
Clean intake valve.
(Fig. 19)
Lever [11] is pulled
upwards.
Foreign object prevents closure
of the pressure valve [24] or
defective valve disc [25].
Clean pressure valve
or replace valve disc.
(Fig. 16)
Lever [11] locked or can
be moved downwards
with difficulty only.
Diaphragm [17] is defective.
Replace the diaphragm.
(Fig.
16)
Pressure valve [24] dirty.
Clean pressure valve.
(Fig. 16)
Filter [20]
or / and nozzle [22]
blocked.
Clean filter
(Fig. 13)
or / and
nozzle
(Fig. 14)
.
