Metallisation MK 73, Operating Manual / Spare Parts List

Page: 29 / 64

Page 29 of 64

Check hose connection and hose condition and replace any connection or hose as
necessary.
As part of the routine maintenance, the system should also be leak tested at least every time
the system is assembled and once per week. (See Leak Test Procedure - Section 1.1.2).
4.3 Disconnecting the Pistol
Follow the below procedure to disconnect the pistol:

Once the correct procedure for extinguishing the pistol has been carried out (Section
3.4), ensure that all supplies to the pistol are turned off and that the gas lines have
been emptied.

Disconnect all hoses at the pistol (remembering that the pistol gas union has a left
hand thread). Do not allow the hose ends to fall to the floor or be contaminated with
dust as this could damage the threads and introduce foreign matter into the valve
upon re-fitting.

Coil up the hoses and hang them in a safe place.

Leave the pistol valve open to avoid damaging the internal diaphragms
NOTE: In order to prevent the ingress of any dirt, ensure that any further disassembly is
carried out in a clean environment.
Before proceeding to dismantle the pistol further, ensure that as a minimum the following
spares are available:
Part Number: GAS-SSP - MK61 / MK73 Standard Spares Pack for Gas Systems (See
Section 4.1
– Recommended Spares).
Visual representations of all recommended spare parts can be found in Section 7
– Illustrated
Parts List.