Ragazzini RC2-Mxl, Инструкция по эксплуатации

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INSTRUCTIONS FOR USE
32
LM05EN002
I.5 NORMAL WEAR PARTS
The operations described here below must be carried out by qualified and authorised personnel.
The parts subject to wear for routine maintenance are the following:

Check valves.

Caps.

Gland rings.

Rods.
When there is a decrease in pump performance (indicating a wear of the aforementioned internal parts), it
necessary to carry out a check of the parts.
WARNING:
Before opening the pump make sure that the piping is empty and that there is no pressure.
The pressure exerted by the fluid could represent a hazard for the operator.
I.5.1
Check and replace the valves

Unscrew the cap nuts (1).

Remove the door (2) using the supplied
wrench, taking care not to damage the door
seals (3). If damaged, replace them.

Check the condition of the valves (4):
absence of deep abrasions and sphericity
(resting on their seat without pressure, they
must be able to close it perfectly).

Check that there are no foreign bodies
around the valves.

If necessary, replace the worn valves with
new ones (see the table in paragraph J.3).

Fit the new valves by performing the steps
listed above in reverse order.
I.5.2
Check and replace the caps

Loosen the screws (1).

Remove the front plate (2), taking care not
to damage the O-Ring (3).
1
2
3
4
1
2
3