Parker WVM Series, Руководство по эксплуатации, Страница: 42 / 56

EN | Operating manual Maintenance and repair of the dryer
42 WVM 45 -1450
Maintenance interval (6 months)
Check the screw and clamp connections
After six months at the latest, all the electrical panel’s screw and clamp connections must be
checked to ensure that they are secure. The maintenance interval should be reduced in the
case of a vibrating substrate or a vibrating compressor feed line.
De-pressurize the dryer and shut it down (see page 37).
Switch off the electric power feed, and take precautions to prevent it being switched back
on.
Check that all the screw connections and clamps in the electrical panel are secure, and
tighten if necessary.
Replace any corroded components immediately.
Switch the electric power supply back on and close the electrical panel.
Restart the dryer.
Maintenance interval (12 months)
Replacing the silencer
The dryer is equipped with silencers. A ram pressure builds up when a silencer is blocked,
which could even cause the silencer to burst.
Risk posed by a blocked silencer!
Dangerous excess pressure may develop at blocked silencers, causing the
silencers to burst. Flying debris could injure persons and damage property.
Silencer elements should therefore be checked annually and replaced if soiled.
Beware of sudden air blast!
Pressure suddenly escapes via the silencer during expansion:
- A loud expansion noise occurs which may damage your hearing.
- Particles carried along with the air fl ow can damage your eyes or skin.
For this reason you must always wear eye and hearing protection when you are
near the dryer!
De-pressurize the dryer and shut it down
(see page 37)
Unscrew the silencer as shown in the illust-
ration to the right.
Fit new silencer in place and screw tight.
Restart the dryer (see page 38).
Replacement the silencer
Renew fi lter element of the control air fi lter
The control air fi lter is used to clean the control air and thus ensures that the valve actuators
are working properly. Contaminated or damaged control air fi lters might lead to malfunctions
in the valve actuators. The fi lter must therefore be inspected at least once every year.