DeWalt D55150 Instruction Manual page 13

wJtt alsobeheard when theunit s huts offbecause theunloader
valve, located inthepressure switch, ispurging airfrom thelines.
5. Attach t hehose and accessory.
6. Adjust theregulator tothedesired setting.
NOTE: Ifanyunusual noise orvibration isnoticed, stop thecom-
pressor and refer t othetroubleshooting section.
Shut-down
NOTE: NEVER stop the air compressor by unplugging it from the
power source. This could result in damage to the unit.
1. Move the ON/OFF lever to the OFF position.
NOTE: If finished using compressor, follow steps 2 - 7 below.
2. Unplug the cord from the outlet.
3. Turn the regulator knob counterclockwise until it is fully closed.
Ensure that the regulated pressure gage reads 0 PSI.
3. Remove the hose and accessory.
4. Drain the air tanks.
5. Allow the compressor to cool down.
6. Wipe compressor clean and store in a safe, non-freezing area.
Maintenance
The following procedures must be followed when maintenance or
service is performed on the air compressor.
1. Turn off the compressor.
2. Disconnect cord from electrical outlet.
3. Drain tanks.
4. Allow the compressor to cool down before starting service.
NOTE: All compressed air systems contain maintenance parts (e.g.
lubricating oil, filters, separators) which are periodically replaced.
These used parts may be, or 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. The assembly sequences
and parts illustrated may differ for your particular unit.
NOTE: Any service operations not included in this section should be
performed by authorized service personnel.
Maintenance Chart
Procedure
Check pump oil level
Oil leak inspection
Drain condensation in air tank(s)
Check for unusual noise/vibration
Check for air leaks**
Inspect air filter
Clean exterior of compressor
Check safety relief valve
Change pump oil *
Replace air filter
Day Week Month
X
X
X
X
X
X
X
X
200 Hrs.
X
X
* The pump oil must be changed after the first 20 hours of oper -
ation. Thereafter, every 200 hours or once a year, whichever comes
first. In harsh environments, maintenance must be performed on an
accelerated schedule. Always use DEWALT synthetic oil.
** To check for air leaks apply a solution of soapy water around joints.
While the compressor is reaching the pressure cut-out lim# and after
the pump cuts out, look for air bubbles around the joints.
Compressor Pump Oil Change
NOTE: Pump oil contains substances that are regulated and must be
disposed of in accordance with local, state, and federal laws and