Oil-Lubricated Compressors
Operation
•P r e ssure Switch - Auto/Off Switch (Figure7) - In the AUTO position, the compressor shuts off automatically when tank pressure reaches the maximum preset pressure. In the OFF position, the compressor will not operate. This switch should be in the OFF position when connecting or disconnecting the power cord from the electrical outlet or when changing air tools.
MOISTURE IN COMPRESSED AIR
Moisture in compressed air will form into droplets as it comes from an air compressor pump. When humidity is high or when a compressor is in continuous use for an extended period of time, this moisture will collect in the tank. When using a paint spray or sandblast gun, this water will be carried from the tank through the hose, and out of the gun as droplets mixed with the spray material.
IMPORTANT: This condensation will cause water spots in a paint job, especially when spraying other than water based paints. If sandblasting, it will cause the sand to cake and clog the gun, rendering it ineffective. A filter in the air line (MP3105), located as near to the gun as possible, will help eliminate this moisture.
Figure 7 - Auto/Off switch
•R e g u l a t o r - The regulator controls the amount of air pressure released at the hose outlet.
•ASME Safety Valve - This valve automatically releases air if the tank pressure exceeds the preset maximum.
•Exhaust Tube - This tube carries compressed air from the pump to the check valve. This tube becomes very hot during use. To avoid the risk of severe burns, never touch the exhaust tube.
•Check Valve - A
•Handle - Designed to move the c o m p r e s s o r .
Never use the handle on wheeled
units to lift the unit completely off the g r o u n d .
•Drain Valve - This valve is located on the bottom of the tank. Use this valve to drain moisture from the tank daily to reduce the risk of corrosion.
Reduce tank pressure below 10 psi, then drain moisture from tank daily to avoid tank corrosion. Drain moisture from tank by opening the drain valve located underneath the tank.
BEFORE FIRST START-UP
BREAK-IN PROCEDURE
(Complete this procedure before using compressor for the first time. Once completed, it is not necessary to repeat.)
1 . Turn regulator knob fully clockwise (to the right) to open air flow.
2 . Turn on/off switch to OFF position.
3 . Plug in power cord.
4 . Turn on/off switch to AUTO position and run compressor for 30 minutes.
5 . Turn on/off switch to OFF position.
6 . Unplug power cord.
The compressor is now ready for use.
BEFORE EACH START-UP
OPERATING PROCEDURE
1 . Turn regulator knob fully counter clockwise (to the left) to close air flow.
2.Connect air hose to outlet of r e g u l a t o r .
3 . Turn on/off switch to OFF position.
4 . Plug in power cord.
5 . Turn on/off switch to AUTO position and let compressor run until it reaches automatic shutoff pressure.
6 . Attach tire chuck or tool to end of h o s e .
7 . Turn regulator knob clockwise (to the right) to desired pressure of tool being used.
On/Off cycling of compressor
In the AUTO position, the compressor pumps air into the tank. When a shut- off (preset
If the compressor is left in the AUTO position and air is depleted from the tank by use of a tire chuck, tool, etc., the compressor will restart automatically at its preset
In the OFF position, the pressure switch cannot function and the compressor will not operate. Make sure switch is in OFF position when connecting or disconnecting power cord from electrical outlet.
ASME SAFETY VALVE
Do not remove or attempt to adjust
the safety valve!
Check the safety valve by performing the following steps:
1 . Plug the compressor in and run until shut off pressure is reached (see Operating Procedure).
2 . Wearing safety glasses, pull the ring on the safety valve (see Figures 6 and
8)to release pressure from compressor tank. Use your other hand to deflect
Figure 8
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