Pump Manual

4
If the compressor has to be located where the motor will be exposed to appreciable quantities of water, dirt, oil, acid,
or alkaline fumes, the motor must be of special construction to avoid rapid deterioration; i.e. TEFC
Unless the base is exactly level, shims will be required. Any space between the base and foot of the tank should be
shimmed rather than drawing the foot down, thus placing strain on the unit. When properly shimmed, vibration will
be at a minimum. Also use a ¼’’ or less rubber pad under each foot to help with vibration.
Allow sufficient space around the compressor so that it is accessible from all sides for maintenance. Mount the unit
with the pulley side toward the wall, but at least 18 inches from it.
Installing the pump
• Mount pump to the deck of the tank. We recommend using angle iron to raise the pump above the deck, to
allow for better crankcase cooling. Install mounting bolts, but don’t tighten them yet
• Hook up main feed tube from the3/4’’ flare fitting to the check valve in the tank.
• Tighten up the mounting bolts now
• Install the belt over the flywheel and motor pulley
• Loosen the bolts on the electric motor and slide the motor back so that there is ½” deflection in the center
of the belt for proper belt tension. There should be a ½’’ of play on the belt tension. Tighten the bolt back
up on the motor
• Run ¼’’ copper tubing from 90-degree elbow (coming out of the front crankcase) to the side of your check
valve.
• Don’t hook up the ¼’’ copper tubing on the top of the cylinder heads unless using a pilot valve.
• Make sure there is a tube from the check valve in the tank to the unloader on the pressure switch. This will
relieve the head pressure when the compressor stops. This will make it easier for the motor when the
compressor goes to restart.
• Fill crankcase with Airbase synthetic oil to the center of the sight glass
• Size the correct pulley for your motor. When using a 7.5 HP motor use a 3 1/2’’ pulley on a 3450-rpm
motor and a 7’’ pulley on a 1750 rpm motor. When using a 10 HP motor that runs 3450 rpm use a 4 ½’’
pulley and a 9’’ pulley when using a 1750 rpm motor.
• Turn on the motor and check for proper rotation. The pump must run counterclockwise when facing the
pulley side of the compressor.
Air intake
The compressor pumps are equipped with intake filters that require no piping.
Pipe Connection
A flexible connector should be used between the compressor tank and building piping or connection to after cooler
or other similar equipment in order to minimize noise, vibration, vibration damage, and wear and tear.