Maintenance and repair of the dryer
A190-930TX_EN_03_ 2009-02-06
51
►
Unscrew flange and screw
connections from the upper arch pipe
system (see figure).
►
Withdraw upper arch pipe complete
with all mountings.
►
Remove dust sieves and gaskets.
►
Clean dust sieves with compressed
air or a suitable tool (e.g. soft wire
brush).
►
Renew gaskets.
Disassembling of dust sieve
►
Mount cleaned dust sieves:
—
mount base gasket;
—
insert dust sieve;
—
mount top gasket.
►
Repeat the process on the second vessel.
►
Re-mount and secure the upper arch pipe system.
►
If no other maintenance work is required: Restart dryer (see page 41). Check
that the connection is leak tight.
Renew drying agent
The service life of the drying agent is usually approx. 3 to 5 years. However, in
favourable installation conditions, the change of drying agent may be carried out
at a substantially later date (for notes on the installation site, see also page 22).
The change interval depends very significantly from the degree of contamination
in the compressed air (or the quality of the compressed air upstream filters). Oil,
dust, and dirt particles cover the drying agent surface and reduce its effective
surface, in part quite irreversibly.
If in doubt, have a sample of your drying agent assessed by specialists. Send a
sample of approx. 200 g to the manufacturer (for address, see page 6).
Comply with the following safety notes when changing the drying agent:
Wear eye protection and dust mask due to increased dust generation!
When emptying the drying agent, increased dust generation may occur.
In order to avoid any eye irritations, wear protective goggles!
In order to avoid any dust inhalation, wear dust mask!
Risk of skidding!
If drying agent has been spilt on the floor, there is a risk of skidding
caused by the drying agent beads. Therefore, spilt drying agent must
always be taken up immediately.
