Porter-Cable C7501 Air Compressor User Manual


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15 - ENG
TO DRAIN TANK
Risk of unsafe operation. Air tanks contain high pressure air.
Keep face and other body parts away from outlet of drain. Use eye protection
[ANSI Z87.1 (CAN/CSA Z94.3)] when draining as debris can be kicked up into
face.
Risk from noise. Use ear protection (ANSI S12.6 (S3.19) as air
flow noise is loud when draining.
NOTE: All compressed air systems generate condensate that accumulates in any
drain point (e.g., tanks, filter, aftercoolers, dryers). This condensate contains lubricat-
ing oil and/or substances which may be regulated and must be disposed of in accor-
dance with local, state, and federal laws and regulations.
1. Set the Auto/Off lever to "Off".
2. Slowly bleed the air from the air tank and air distribution system until tank
pressure is approximately 20 psi.
3. 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.
4. 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, then reinstalled.
OIL
Risk of property damage. Use air compressor oil only. Multi-weight
automotiveengine oilslike 10W30should not beuse inair compressors. They
leave carbon deposits on critical components, thus reducing performance and
compressor life.
NOTE: Use 30Wcompressor oil or aheavy duty SAE 30W,nondetergent, SF
grade or better oil. DO NOT use multi-weight automotive engine oils, they will
reduce compressor life. Under extreme winter condition use SAE-10 weight oil.
NOTE: Crankcase oil capacity is approximately 16 fluid ounces (0.47 L).
Checking
1. The oil level should be to the middle of
C
B
A
the sight glass (C).
2. If needed remove oil fill plug (A) and
slowly add oil until it reaches the middle
of the sight glass.
Changing
1. Remove the oil fill plug (A).
2. Remove the oil drain plug (B) and drain
oil into a suitable container.
3. Replace the oil drain plug (B) and tight-
en securely.
4. Slowly add compressor oil until the oil
level is in the middle of the sightglass
(C). NOTE:Whenfillingthecrankcase,theoilflowsveryslowlyintothe
pump. If the oil is added too quickly, it will overflow and appear to be full.
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