4.5 MC40 Control board failure
NOTE:Refer to menu structure on page 13.
This board software is allowing access to a "Diagnostics Menu". Only qualified service
technicians are authorized to access this menu by entering a security password.
By acceding either the "D1 input test" feature or the "D2 output test" feature,a trained
technician will be able to quickly know the origin of the problem: pump, sealing system,
pneumatic problem, security switches problem, etc...
Keep in mind that in most cases trouble is due to a leakage, loose electrical connection or
evident dammage to the main components: vacuum pump, valves, electrical contactors,
thermal overload, fuses holder or transformer.
For assistance do not hesitate to contact your local service technicians.
5. Regular maintenance:
Routine controls to be made at regular intervals:
Check teflon for wear.
Check silicone rubber for burnt spots and smooth even position.
Check pressure bar for jamming.
Check lid sealing for damage and hardened spots.
Check switch-point of micro switch, adjust if necessary.
Check evacuation hose for damage (contraction of diameter, or abrasions).
Check vacuum connections for tightness.
Check oil in pump (oil level in view glass; add if necessary. Regular change of oil - necessity
indicated by change of color).
Check vacuum in chamber with precision vacuumeter.
Check function of cycle with various settings of timers.
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