Extension Cords
Use only a 3-wire extension cord that has a 3-blade grounding plug and a
3-slot receptacle that will accept the plug on the product. Make sure your
extension cord is in good condition. When using an extension cord, be sure
to use one heavy enough to carry the current your product will draw. An
undersized cord will cause a drop in line voltage resulting in loss of power
and overheating. The correct size to use depending on cord length and
nameplate ampere rating is No. 18 AWG, 3 conductor up to 100 feet. If in
doubt, use the next heavier gage. NOTE: The smaller the gage number, the
heavier the cord.
Operation (see Figure 3)
For pressure delivery, the manifold port marked “TO PUMP” should be
connected via the 9 inch long tube to the pump port marked “FOR PRES-
SURE,” with pressure regulated by the valve marked “PRESSURE
ADJUST.” The “INPUT/OUTPUT” port should be connected to suitable
containers for receiving pressurized air or gas. If a medium other than
ambient air is to be pressurized, the source of supply should be connect-
ed to the pump inlet port marked “FOR VACUUM.”
WARNING:
Gas under pressure should not be used for supply as a haz-
ardous bursting condition could develop in the pump head.
Use only gases contained at atmospheric pressure.
CAUTION:
Do not operate pump when pressure ports of both heads are
in a blocked condition.
To draw a regulated vacuum from a source, first, connect the source of
supply to the port marked “INPUT/OUTPUT” and then connect the “TO
PUMP” port to the pump inlet, marked “FOR
VACUUM.” If the
Vacuum/Pressure Station was previously used for pressure delivery, be
sure all pressures are relieved before disconnecting tubing from the “FOR
PRESSURE” and/or the “INPUT/OUTPUT” port(s). This can be done best
by stopping the pump and gradually relieving pressure by turning the
“PRESSURE ADJUST” valve screw counterclockwise until the gauge
reads zero.
The motor is supplied with an internal thermal overload switch which may
trip if something happens to the pump. If this should occur, check the pump
to ensure that everything is normal. Allow motor to cool for approximately
30 minutes, then restart. If overload trips again, return the complete unit to
your dealer for repair. Refer to return policy in back of manual.
DANGER:
Unplug power cord before any cleaning operation is started.
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