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Use and Maintenance Manual
M
MCCHH88--1111//EEM
M -- M
MCCHH1133--1166//EETT
Standard
Cap.7 _ Maintenance
CHECKING THE SAFETY VALVE
7.8
The final safety valve protects bottles from being filled with air at too high a pressure; the valve setting is made
at the time of testing the compressor.
The safety valve must be tested every time bottles are refilled.
After attaching the coupling to the bottle start the compressor with the bottle taps closed.
Once you have checked, using the gauge, that the safety valve trips properly at maximum working pressure,
open the taps and start the refill.
IMPORTANT
Should the safety valve fail to operate properly contact the AEROTECNICA COLTRI
technical assistance service.
CONDENSATE DISCHARGE
7.9
DANGER
Do not carry out these tasks if the compressor has only ju st 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.
IMPORTANT
The condensate must be discharged at the end of every working day.
Condensation accumulates in the condensate sepa-
rator; the condensate must be discharged every 10-
15 minutes of compressor use.
To discharge the condensate open the drain valves
(
a
) and collect the condensate in an appropriate
recipient.
Close the valves.
For models with a control panel (
b
) condensate
discharge occurs automatically every 7 minutes.
The yellow TEST PURGE pushbutton (
e
) must be
pressed every day to make sure that the discharge
valve is working properly. Use a plastic pipe to
connect the discharge fittings (
c
) to a recipient or
bowl for collection of the condensate and check this
container periodically to stop it overflowing. Should
you wish to effect a manual discharge use the drain
taps (
d
).
Every 250 hours it is necessary to replace the
SINTERED FILTER
inside the solenoid valve fitting
(
f
).
Condensate must be disposed of according to the
instructions shown in section “9.1 Waste disposal”.
a/2
nd
a/1
nd
a/3
nd
b
c
c
d
d
e
f
