MESTO 3275PP Instrucciones De Uso página 18

EN
Faults
Use only original spare and accessory parts.
Fault
No pressure builds up in
the device.
Liquid flows out of the
pump.
Piston pressure gauge
does not indicate any tank
pressure.
Safety valve blows off too
early.
The nozzle does not spray
even though pressure is
present.
The shut-off valve does not
close.
Liquid emerges without the
lever being activated.
Contact address for additional information → see title page.
Cause
The pump is not screwed
on tightly.
O-ring [19] on the pump is
faulty.
Diaphragm [20] is defec-
tive.
Valve disc [23] dirty or
defective.
Piston pressure gauge [16]
is defective.
Nozzle [21] or / and filter
[22] is clogged.
O-rings [24] of the pres-
sure bolt [25] are not
greased / lubricated.
Faulty O-rings [24] or pres-
sure bolt [25].
18
Remedy
Screw the pump on tightly.
Replace the O-ring (Fig. 19).
Replace the diaphragm (Fig.
19).
Clean or replace the valve disc
(Fig. 21).
Replace the piston pressure
gauge (Fig. 26).
Clean the filter (Fig. 24) or/and
nozzle (Fig. 22).
Grease the O-rings of the
pressure bolt (dismantle shut-
off valve → section „Care and
maintenance") (Fig. 29)
Replace O-ring or pressure bolt
(Fig. 29).
ENGLISH