Checking Safety Valve - DeWalt DPC17PS-QS Instruction Manual

EN G LI SH
DRAINING AIR TANK
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
current regulations.
The condensation in the tank must be drained daily by
opening the drain valve (2) under the tank. Take care
if there is compressed air inside the cylinder, as water
could flow out with considerable force.
1. Verify that the compressor is turned "Off".
2. Holding the handle, tilt the compressor toward the
drain valve so it is positioned at the bottom of the tank.
3. Turn the drain valve to open.
4. Keep the compressor tilted until all moisture has been
removed.

CHECKING SAFETY VALVE (9)

m WARNING: Hot surfaces. Risk of burn. Outlet tube,
pump head, and surrounding parts are very hot, do not
touch. Allow compressor to cool prior to servicing.
m WARNING: Risk of bursting. If the safety valve does
not work properly, over-pressurization may occur,
causing air tank rupture or an explosion.
The safety valve has been set for the highest permitted
pressure of the pressure vessel. It is prohibited to adjust
the safety valve. Actuate the safety valve from time to
time to ensure that it works when required.
Turn the nut until you can hear the compressed air
being released. Then screw it back on. Always keep the
safety valve and the surrounding area clean and free of
obstructions.
WHAT TO DO IF SMALL
MALFUNCTIONS OCCUR
Air losses
These can be caused by poor tightness of a union -
check all unions, wetting them with soapy water.
16
Compressor not starting
If the compressor has trouble starting, check the
following :
- Does mains power match that of the data-plate?
- Are power cable extensions of adequate diameter or
length?
- Is the work environment too cold? (under 0°C)
- Is power supplied to the electrical line?
- Are sockets properly connected?
- Are the thermal breaker and fuses in good condition?
Compressor not stopping
- If the compressor does not stop when maximum
pressure is reached, the tank safety valve comes into
operation. A compressor with a faulty safety valve must
NEVER be used - contact your nearest service centre
immediately.
IMPORTANT
- Do not on any account unscrew any connection while
the tank is pressurised .
- Always check if the tank is pressure free.
- Do not drill holes, weld or purposely deform the
compressed air tank.
- Do not do any maintenance on the compressor unless
you have disconnected the power plug.
- Temperature in operating ambient: 0°C to +35°C.
- Do not aim jets of water or inflammable liquids on the
compressor.
- Do not place flammable objects near the compressor.
- During down-times, turn the switch to position "0"
(OFF).
- Never aim the air jet at people or animals.
- Do not transport the compressor while the tank is
pressurised.
- Be careful with regard to some parts of the compressor
such as the head and delivery tubes, as they can reach
high temperatures. Do not touch these parts to avoid
burns.
- Transport the compressor, lifting or pulling it with the
appropriate grips or handles.
- Keep children and animals well away from the machine
operating area.
- If using the compressor for painting: a) Do not work
in closed environments or near to naked flames b)
Make sure there is adequate exchange of air at the
place of work c) Protect your nose and mouth with an
appropriate mask. Consult the tool / accessory manual
and adhere to any safety requirements.
- If the electrical cable or plug are damaged, do not use
the compressor and contact an authorised service