Porter-Cable N003568 - Manual (Page 13)

13 - ENG N003568
TO DRAIN TANk
Risk of Unsafe Operation. Risk from noise. Air tanks contain
high pressure air. keep face and other body parts away from
outlet of drain. Use ANSI Z87.1 eye protection (CAN/CSA Z94.3) when drain-
ing as debris can be kicked up into face.
Risk from noise. Use ear protection [(ANSI S12.6 (S3.19)
hearing protection] as air flow noise is loud when draining.
1. Set the On/Off switch to "Off".
2. Turn the regulator knob counter-clockwise to set the outlet pressure to zero.
3. Remove the air tool or accessory.
4. Pull ring on safety valve allowing air to bleed from the tank until tank pressure
is approximately 20 PSI. Release safety valve ring.
5. Drain water from air tank by opening drain valve on bottom of tank.
Risk of Bursting. Water will condense in the air tank. If not
drained, water will corrode and weaken the air tank causing
a risk of air tank rupture.
Risk of Property Damage. Drain water from air tank may contain
oil and rust which can cause stains.
6. After the water has been drained, close the drain valve. The air compressor
can now be stored.
NOTE: If drain valve is plugged, release all air pressure. The valve can then be
removed, cleaned, the reinstalled.
SERVICE AND ADjUSTMENTS
ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE
PERFORMED BY TRAINED SERVICE TECHNICIAN.
Risk of Unsafe Operation. Unit cycles automatically when
power is on. When servicing, you may be exposed to volt-
age sources, compressed air, or moving parts. Before servicing unit unplug
or disconnect electrical supply to the air compressor, bleed tank of pressure,
and allow the air compressor to cool.
TO REPLACE OR CLEAN CHECk VALVE
1. Release all air pressure from air tank. See "To Drain Tank" in the Maintenance
section.
2. Unplug unit.
3. Remove the hose by removing the
Check
Valve
Hose Clamp
hose clamp. NOTE: The hose clamp
is not reusable. You must purchase a
new hose clamp, see Replacement
Parts in the Service section or pur-
chase a standard hose clamp at a
local hardware store.
4. Unscrew the check valve (turn coun-
ter-clockwise) using a socket wrench.
5. Make sure the valve disc moves freely
inside the check valve and the spring
holds the disc in the upper, closed
position. The check valve may be
cleaned with a solvent, such as paint and varnish remover.