Excell Precision E7540 - Manual (Page 14)

14-ENG A18791
Drain Valve: The drain valve is located at the base of
Drain
Valve
the air tank and is used to drain condensation at the end of
each use.
Check Valve: When the air compressor is operating, the
check valve is "open", allowing compressed air to enter
Check Valve
the air tank. When the air compressor reaches "cut-
out" pressure, the check valve "closes", allowing air
pressure to remain inside the air tank.
Pressure Release Valve: The pressure release valve
located on the side of the pressure switch, is designed
to automatically release compressed air from the
compressor head and the outlet tube when the air
Pressure
Release
Valve
compressor reaches "cut-out" pressure or is shut off. The
pressure release valve allows the motor to restart freely.
When the motor stops running, air will be heard escaping
from this valve for a few seconds. No air should be heard
leaking when the motor is running or after the unit
reaches "cut-out" pressure.
Motor Overload Protector: This motor has a manual
thermal overload protector. If the motor overheats for any reason, the overload
protector will shut off the motor. The motor must be allowed to cool down be-
fore restarting. To restart:
1. Place the On/Auto/Off lever in the "Off" position.
Reset
Button
2. Allow the motor to cool.
3. Depress the red reset button on the motor.
4. Place the On/Auto/Off lever in the "On/Auto" postion to
restart the motor.
Air Intake Filter (not shown): This filter is designed to
clean air coming into the pump. This filter must always be
clean and ventilation openings free from obstructions. See "Maintenance".
How to Use Your Unit
How to Stop:
1. Set the On/Auto/Off lever to "Off".
Before Starting
Break-in Procedure
Risk of Unsafe Operation. Serious damage may result if the
following break-in instructions are not closely followed.
This procedure is required before the air compressor is put into service and
when the check valve or a complete compressor pump has been replaced.
1. Make sure the On/Auto/Off lever is in the "Off" position.
2. Check oil level in pump. See "Oil" paragraph in the Maintenance section for
instructions.
3. Recheck all wiring. Make sure wires are secure at all terminals connections.
Make sure all contacts move freely and are not obstructed.
4. Open the globe valve fully to permit air to escape and prevent air pressure
build up in the air tank during the break-in period.
5. Move the On/Auto/Off lever to "On/Auto" position. The compressor will start.