MESTO 3270 Serie Instrucciones De Uso página 16

EN
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. 7)
• Dismantle the pump [2]. (Fig. 17)
• Grease the O-ring [19] and the sleeve [20]. (Fig. 18)
• Assemble the pump.
• Lock the piston rod with handle [13] and screw the pump [2] into the tank [1].
• Take the hose [4] with the discharge filter [34] out of the tank and clean the discharge
filter under running water. (Fig. 24)
Observe the legal requirements of your country for accident prevention and check
the device in regular intervals.
Unless otherwise specified, we recommend that an expert carries out an external
test every 2 years and an internal test every 5 years as well as a strength test every
10 years.
Faults
Use only original spare and accessory parts.
Fault
No pressure builds up in
the device
Liquid flows out of the
pump
No tank pressure
indication on the piston
pressure gauge, Safety
valves blow off too early.
Contact address for additional information → see title page.
6993240_0223_3270W-15Spr-neutr.indd 16 6993240_0223_3270W-15Spr-neutr.indd 16
Cause
The pump is not screwed on
tightly.
O-ring [19] on the pump is
faulty.
Diaphragm [20] is defective.
Valve disc [23] dirty of defec-
tive.
Piston pressure gauge [16] is
defective.
16
ENGLISH
Remedy
Screw the pump on tightly.
Replace the O-ring (Fig. 19).
Replace the diaphragm (Fig. 19).
Clean or replace the valve disc
(Fig. 21).
Replace the piston pressure
gauge (Fig. 26).
05.04.2023 13:52:57 05.04.2023 13:52:57