jbc AM 6500, Instruction Manual

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14
Cleaning the vacuum pump valve
Open the control unit as follow:
- Disconnect the control unit.
- Turn it upside down, remove the fixing
s c r e w s .
- Return the station to its normal position and
lift up the lid.
- Undo the four screws fastening the pump
cover.
- Clean the valve with a cloth dampened in
alcohol. If it is too soiled, replace it with
new one. Ref. 0982970.
Detecting air leaks in the circuit
To detect air leaks in the circuit:
- O b s t r u c t t h e t i p i n l e t
orifice by pressing down
on a silicone disc, or bend
the tube connecting the
d e s o l d e r i n g i r o n t o t h e
filter.
- Press the pushbutton vacuum pump.
If the red led lights up, there is no loss of
suction. Otherwise air gets into the system at
some point. This can occur at the desoldering
tip, or may be caused by the lid of the deposit,
lids of filters or because the air pump does
not function correctly due to dirty valves
which occurs when the air filter has not been
used correctly.
Changing the pump inlet filter
Verify the filter at the entrance of the pump, and
change it if dirty or obstructed, therefor:
Open the filter pulling the flap.
Take out the 2 cotton filters, throw away those
which are soiled and replace them with new
ones. Always use 2 filters.
Close the filter and check the airtightness.