Maintenance and repair of the dryer
HDK350_EN_01_2005-05-10
47
Danger!
There is a very considerable risk of personal injury, when carrying out
work on the activated and pressurised dryer.
Before commencing any maintenance tasks always shut down the dryer as
described on page 43
, Depressurising and shutting down the dryer
!
Warning against electrical voltage!
Only qualified specialist personnel may carry out work on the electrical
system!
Daily maintenance tasks
Carry out visual and function check on the complete dryer
►
Check dryer for external damage or unusual noise generation.
►
Duly eliminate any defects found.
If message
SEr.
is displayed, a routine service must be completed:
►
Contact the service department of the manufacturer.
Clean dryer
►
Remove any loose dust by means of a dry cloth, and, if required, also by
means of a moist and well wrung cloth.
►
Clean the surfaces with a moist well wrung cloth.
Check dam pressure
If, following depressurisation of a vessel, e.g. after the expansion phase, the
overpressure has not decreased to 0 bar, then there is a residual pressure,
designated as dam pressure, in the vessel.
►
Check for dam pressure: if the dryer functions correctly, the respective
pressure gauge indicates 0 bar. Then there is no dam pressure.
If the dam pressure is greater than 0.3 bar:
►
Depressurise the dryer and shut it down (see page 43).
Dam pressure can be caused by:
a blocked muffler,
a blocked dust sieve or
drying agent which is too old.
The respective necessary maintenance measures are described in the following
sections.
Summary of Contents for HDK 50/100
Page 1: ...High Pressure Dryer HDK 50 100 600 350 Operating Instructions Issue 05 2005 EN...
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Page 72: ...Dimensional drawing 72 HDK350_EN_01_2005 05 10 Items Option...