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Use and Maintenance Manual
M
MCCHH88--1111//EEM
M -- M
MCCHH1133--1166//EETT
Standard
Cap.7 _ Maintenance
CHANGING THE FLEX HOSES
7.12
IMPORTANT
The hoses must be changed periodically (every 3 years or ever 1000 hours) or when
they show signs of abrasion/wear/damage.
The bending radius of the hoses must not be less than 250 mm.
To change the bottle refill hoses proceed as follows:
- disconnect the bottle refill hoses by unscrewing the
fittings (
a
) (17 mm wrench).
- replace the old hoses with new ones.
- screw the hoses onto the connectors (
a
).
- use a dynamometric wrench to tighten the hoses
on the compressor with a torque of 15 Nm.
a
a
DANGER
Do not carry out these tasks if the compressor has only just shut down; wait for the
compressor to cool.
All maintenance work must be carried out with the compressor OFF and the power
supply lead unplugged from the mains socket.
Vent the air from the compressor before carrying out any maintenance tasks.
Tank refill pressure is very high; therefore, before refilling the tanks check that the
hoses are perfectly connected and in good condition. Check also that the taps on any
unused hoses are closed properly so as to prevent the dangers that derive from hose
whiplash.
When the tanks are being refilled unauthorised personnel must remain at a distance
of at least 3 metres.
It is strictly forbidden to disconnect the hoses from the fittings or refill tap when the
machine is under pressure.