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10 - English
Control box
The control system consists of two switches:
1. On/Off swich.
Turns machine off in OFF position and on in ON posi-
tion.
2. Fwd/Rev switch.
Changes direction of vacuum pump. Sometimes direc-
tion of vacuum will need to be reversed depending on
phase order of power supply.
IMPORTANT!
Direction should NEVER be changed while
machine is switched to ON position (this is
why there is a lock on the FWD/REV switch).
If direction needs to be changed, turn ma-
chine back to OFF position, wait for 1 minute,
change direction and then switch back on.
Once direction setting has been changed,
remove key from FWD/REV switch before
switching back on.
Changing of direction while machine is run-
ning will result in motor failure.
1. 2.
What is what
Diagram 4.