Mesto HERBI 3232U, Instructions For Use Manual

Page: 18 / 75

18
GB IRL AUS USA NZ CDN IND
Faults
Use only MESTO spare parts and accessories (
→
Fig. on page 2) .
Fault Cause Remedy
No pressure builds up in
the device
The pump is not screwed on
tightly.
Screw the pump on tightly.
O-ring [17] on the pump is
faulty. (Fig. 15)
Replace the O-ring.
Diaphragm [18] is defective.
(Fig. 15)
Replace the diaphragm.
Liquid flows out of the
pump
Valve disc [21] dirty or
defective. (Fig. 19)
Clean or replace the valve disc.
No tank pressure
indication on the piston
pressure gauge,
Safety valves blow off too
early.
Piston pressure gauge [14] is
defective
Have the piston pressure
gauge repaired.
The nozzle does not
spray even though
pressure is present
Filter [20] (Fig. 18) and / or
nozzle [13] (Fig. 17) is clogged.
Clean the filter or / and nozzle.
Only spray, no
atomization
Insert [12] is missing (Fig. 17) Position the insert in the nozzle
The shut-off valve does
not close.
Liquid emerges without
the lever being activated.
O-ring [22] of the pressure bolt
[23] not greased / lubricated.
(Fig. 20)
Defective pressure bolt [23] or
O-ring [22] (Fig. 20)
Grease the O-ring of the
pressure bolt (dismantle or
assemble the pump
→
section
"Care and maintenance")
Replace the pressure bolt or O-
ring.
Contact address for additional information
→
see title page .