Care And Maintenance - Mesto 3270FO Mode D'emploi

GB IRL

Care and maintenance

Observe the instructions in the section entitled „Safety".
After using the device 50 times or at least once a year:
• Unscrew the pump [2] from the tank. (Fig. 6)
• Dismantle the pump [2]. (Fig. 14)
• Grease the diaphragm [12]. (Fig. 15)
• Assemble the pump.
• Grease the O-ring [11] (Fig. 15)
• Lock the piston rod with handle [9] and screw the pump [2] into the tank [1]. (Fig. 8)
• Clean the nozzle [14] under running water. (Fig. 19)
• Remove the filter [16] between nozzle [14] and spray wand [24]. (Fig. 20a)
• Clean the filter [16] under running water.
• Unscrew the handgrip [19] from the shut-off valve [4].
• Remove the filter [26] and clean it under running water. (Fig. 20b)
• Disassemble the shut-off valve [4]. (Fig. 21)
a) Pull off the ring [21].
a) Loosen the four screws and pull the half shells [20] apart.
b) Screw the sealing cap [23] from the valve body [20] and pull the pressure bolt [18]
from the valve body [22]. (Fig. 22)
• Grease the O-rings [17]. (Fig. 22)
• Assemble the shut-off valve [4].
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 parts and accessories (→ Fig. on page 2).
Fault
No pressure builds up in the
device
Liquid flows out of the pump
No tank pressure indication on
the piston pressure gauge.
Safety valve blows off too early.
AUS USA
Cause
The pump is not screwed
on tightly.
O-ring [11] on the pump
is faulty. (Fig. 16)
Diaphragm [12] is defec-
tive. (Fig. 16)
Valve disc [13] dirty or
defective. (Fig. 17)
Piston pressure gauge
[7] is defective. (Fig. 18)
16
NZ CDN
Remedy
Screw the pump on tightly.
Replace the O-ring. (dismantle
or assemble the pump → sec-
tion „Care and maintenance")
Replace the diaphragm.
Clean or replace the valve disc.
Replace the piston pressure
gauge.
IND