Mesto PRIMER 3237P Mode D'emploi page 18

GB IRL
Faults
Use only MESTO spare parts and accessories
Fault
No pressure builds up in
the device
pump
No tank pressure indica-
tion on the piston pressure
gauge,
Safety valves blow 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
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AUS USA
Cause
The pump is not screwed
on tightly.
O-ring [13] on the pump is
faulty.
Diaphragm [14] is defecti-
ve.
Valve disc [18] dirty of
defective.
Piston pressure gauge [10]
is defective
Nozzle [16]
clogged.
blocked.
O-rings [19] of the pressu-
re bolt [20] is not greased /
lubricated.
Defective pressure bolt
[20] or
O-ring [19].
18
NZ CDN
Remedy
Screw the pump on tightly.
Replace the O-ring. (dismantle
tion „Care and maintenance")
Replace the diaphragm.
Clean or replace the valve disc.
Have the piston pressure gauge
repaired (3237P).
Replace the piston pressure
gauge (3278P).
or
Grease the O-rings of the pres-
sure bolt
Replace the pressure bolt or
O-rings.
IND
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