18
EN ENGLISH
Observe the legal requirements of your country for accident prevention and check
the device in regular intervals.
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test every 2 years and an internal test every 5 years as well as a strength test every
10 years.
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.
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Replace the O-ring.
Diaphragm [18] is defective.
)LJ
Replace the diaphragm.
Leaky container
Immediately put the device out
of operation
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pump
Valve disc [21] dirty or defecti-
ve.
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Clean or replace the valve
disc.
No tank pressure
indication on the piston
pressure gauge,
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early.
Piston pressure gauge [14] is
defective
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For safety reasons, it is not
possible to replace the safety
valve/piston pressure gauge.
Please contact your local
MESTO specialist or MESTO
directly.
The nozzle does not
spray even though pres-
sure is present
Filter [20]
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and / or
nozzle [13]
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is clogged.
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nozzle.
Only spray, no atomiza-
tion
Insert [12] is missing
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Position the insert in the
nozzle
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not close.
Liquid emerges without
the lever being activated.
O-rings [24] of the pressure bolt
[25] not greased / lubricated.
)LJ
Defective pressure bolt [25] or
O-rings [24]
)LJ
Grease the O-rings of the
pressure bolt
Replace the pressure bolt or
O-rings.
Faults
Use only original spare and accessory parts.
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•
Screw the sealing cap [45] from the valve body [44] and pull the pressure bolt [25] from
the valve body [44].
)LJ
• Grease the O-rings [24]
)LJ
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