Spec Sheet

26
can be switched from either operating mode by opening and closing a ball valve. The pilot valve is
used to control the compressor when operating in the constant run and the pressure switch is used to
control the compressor when operating in the stop/start mode.
A good rule of thumb in determining which is the best mode of operation is by the amount of time the
compressor will be required to supply air. If the demand for air is infrequent, then the unit should be
set up for stop/start operation to minimize unnecessary run time and operational wear and tear and to
save energy. If there is a frequent or extended demand for air, and/or the unit is located in a distant or
remote area where access to the compressor is diffi cult, the unit should be set up for constant run to
minimize the number of times the motor must start in an hour to ensure good motor life.
Dual Voltage Switch (If so equipped) - The dual voltage switch allows the operator to
change the operating voltage of the unit from 115VAC to 230VAC by toggling the switch
to the corresponding voltage position.
Magnetic Starter (If so equipped) - A magnetic starter is included on all models 5HP and larger
simplex and all duplex single phase units and three phase units. The magnetic starter works in
conjunction with a pressure switch to start and stop the electric motor. The magnetic starter is
primarily a switch which can take the full load of starting and stopping an electric motor when other
switching devices are incapable of handling this load. Starters typically are made of two components;
the contactor and a heater overload block.
The contactor is a switch designed to engage and disengage all the power to an electric motor.
The heater overload blocks is a protective device for the motor. If the motor draws over a preset
number of amps, the overload will disengage the starter and shut the unit down.
PREPARATION FOR USE
Read and understand the safety instructions before using any Jenny Air Compressor.
Prior to any use of the compressor, it is important to follow the check list outlined below:
1.) Check the pump and gasoline engine (if so equipped) to ensure proper oil levels as
specifi ed in Section 5.
Do not operate the unit without or an inadequate amount of
lubricant(s). This may cause severe damage to the air compressor
pump or gasoline engine (if so equipped).
2.) Check oil level safety relief valve operation, air fi lter cleanliness, air receiver condensate as
specifi ed in Section 5.
3.) Perform all the preventive maintenance servicing as specifi ed in Section 5 of this manual.
LUBRICATION
If the unit is portable, lubrication of the wheels may be required. Use a high quality standard
grease. Maintain proper oil level in the compressor pump and gasoline engine if so equipped.
CAUTION
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