Extron electronic 3000B - Manual (Page 138)

Exatron 3000B
www.exatron.com 7-13 Chapter 7 Preventive Maintenance
2. Check the vacuum sensor adjustment. First, be aware that the vacuum sensor adjustment is a 270 °
total turn potentiometer. If you try to turn it more than the 270 °°°° allowed, it will break. The
vacuum generator is an expensive component and abuse is not covered by the E XATRON
warranty.
The red indicator LED on the vacuum generator should normally be off. Turn on the vacuum using
the handler's yellow vacuum override button. The red indicator LED will remain off. Cover the vacuum
hole in the handler plunger/apply head with one device. (You may also cover the vacuum hole with
the end of your finger, although this may not be as accurate.) You will hear a noticeable change in the
sound of the vacuum as it intercepts the device (or your finger) and the red indicator LED should turn
on.
If the red LED does not turn on, adjust as needed by carefully turning the potentiometer clockwise until
the red LED comes on.
3. If the valves in the vacuum generator assembly become plugged with dirt, you may send the assembly
back to E XATRON Customer Service where it will be repaired, if possible, for a fee.
REMEMBER: Damage caused by a dirty air supply is not covered by the E XATRON warranty.
If you are experiencing dirt-clogged vacuum generator valves, check the air regulator. Verify that it is
clean and properly installed. Please refer to the Air Regulator Maintenance Guidelines section earlier
in this chapter, and as always, contact the E
XATRON factory for assistance as needed.
Our toll-free telephone number is 1-800-EXA-TRON.