16
Care and maintenance
Observe the instructions in the section entitled "Safety".
After using the device 50 times or at least once a year:
• Disassemble the pump [2] and grease the diaphragm [18].
(Fig. 18)
• Clean the nozzle [20] and insert [21] under flowing water. If necessary use a needle.
(Fig. 22)
• Remove the filter [22] between the shut-off valve [4] and hose [6] and clean it under
flowing water.
(Fig. 23)
• Grease the O-rings [16], [17] and [23].
(Figures 15, 18, 24)
Observe the legal requirements of your country for accident prevention and check
the device in regular intervals.
If there are no special rules, we recommend you have the device examined
externally by a competent professional every 2 years and subject it to an internal
inspection every 5 years.
We would be happy to provide you with an inspection schedule in German or
English.
Faults
Use only MESTO spare and accessory parts.
Fault
Cause
Remedy
No pressure builds up in
the device
Cover leaking
Close cover properly
(Fig. 7)
Grease or replace O-ring [16]
(Fig. 15)
The pump is not screwed on tightly Screw the pump on tightly
O-ring [17] on the pump is faulty Replace O-ring
(Fig. 20)
Diaphragm [18] is defective
Replace diaphragm
(Fig. 20)
Liquid is forced up out of
the air pump
Valve disk [19] dirty or defective Clean or replace valve disk
(Fig. 19)
The nozzle does not
spray even though
pressure is present
Filter [22]
or / and nozzle [20]
blocked
Clean filter
(Fig. 23)
or / and
nozzle
(Fig. 22)
Only spray, no
atomization
Insert [21] is missing
Position the insert in the nozzle
(Fig. 22)
The shut-off valve does
not close.
Liquid emerges without
the lever being activated.
O-ring [23] of the pressure bolt
is not greased / lubricated
Faulty pressure bolt [24] or
O-ring [23]
Grease O-ring of the pressure
bolt
(Fig. 24)
Replace pressure bolt or O-ring
(Fig. 24)
Contact address for additional information
→
see title page
.
