Mesto 3237P-Serie Gebrauchsanleitung Seite 18

EN
Observe the legal requirements of your country for accident prevention and check
the device in regular intervals.
test every 2 years and an internal test every 5 years as well as a strength test every
10 years.
Faults
Use only original spare and accessory parts.
Fault
No pressure builds up in the
device
Leaky container
No tank pressure indication on
the piston pressure gauge,
The nozzle does not spray even
though pressure is present
close.
Liquid emerges without the
lever being activated
Cause
The pump is not screwed
on tightly.
O-ring [13] on the pump is
faulty. (Fig. 16)
Diaphragm [14] is defecti-
ve. (Fig. 16)
Valve disc [18] dirty of
defective. (Fig. 21)
Piston pressure gauge [10]
is defective
Nozzle [16] (Fig. 18) or
clogged.
blocked.
O-rings [19] of the pressure
bolt [20] is not greased /
lubricated. (Fig. 22)
Defective pressure bolt
[20] or
O-ring [19]. (Fig. 22)
18
Remedy
Screw the pump on tightly.
Replace the O-ring.
Replace the diaphragm.
Immediately put the device
out of operation
Clean or replace the valve
disc.
For safety reasons, it is not
possible to replace the sa-
fety valve/piston pressure
gauge.
Please contact your local
MESTO specialist or MES-
TO directly.
(3237P).
Replace the piston pressu-
re gauge (3278P).
Clean the nozzle or / and
(Fig. 20)
Grease the O-rings of the
pressure bolt
Replace the pressure bolt
or O-rings.
ENGLISH