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4. Allow air compressor to cool down before starting service.
NOTE: All compressed air systems contain maintenance parts (e.g.,
oil, filters, separators) that are periodically replaced. These used parts
may contain substances that are regulated and must be disposed of in
accordance with local, state, and federal laws and regulations.
NOTE: Take note of the positions and locations of parts during
disassembly to make reassembly easier.
NOTE: Any service operations not included in this section should
be performed by a D
e
WALT factory service center or a D
e
WALT
authorizedservicecenter.
Maintenance Chart
Procedure Before Each
Use
Daily or after each
use
Check safety valve
X
Drain air tank
X
Checking Safety Valve
WARNING: Risk of bursting. If the safety valve does not work
properly, over-pressurization may occur, causing air tank rupture or
anexplosion.
Before starting compressor, pull the ring on the safety valve to make
sure that the safety valve operates freely. If the valve is stuck or
does not operate smoothly, it must be replaced with the same type
of valve.
To Drain Tank
WARNING: 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 draining as debris can be kicked up into face.
WARNING: Risk from noise. Use ear protection [(ANSI S12.6
(S3.19) hearing protection] 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 lubricating oil and/or substances
which may be regulated and must be disposed of in accordance
with local, state, and federal laws and regulations.
1. Ensure On/Off switch (A) is in the OFF position.
2. Turn the regulator knob counter-clockwise to set the outlet pres-
suretozero.
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 (G) on bottom
of tank.
WARNING: 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.
NOTICE: 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.