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HDK-MT350_EN_06
► Disconnect plug from dew point sensor.
► Remove the swivel screw connection at the dryer outlet.
► Undo piston mounting screws (8) on the check valve block.
► Undo the four frame mounting screws on either side of the block.
► Attach suitable lifting gear to the lifting eyebolts.
► Lift check valve block horizontally.
Replacing O-rings on tower connection piece
The O-rings on the tower connection pieces
must be replaced as part of the 24 month
maintenance routine.
► Pull out tower connection pieces
The tower connection pieces are normally
pressed tightly into the block. Use Toolkit-3
to release the connection pieces simply and
safely.
► Grease new O-rings and fit on the tower
connection pieces.
► Reinsert tower connection pieces in the
valve block.
Tower connection pieces
Replacing desiccant, seals and dust screen
The service life of the desiccant is usually approx. 2 years.
Note:
Dust sieves are installed in the vessel that retain the desiccant dust. If
these dust sieves block, a dam pressure is generated that may impair
the function of the dryer. When changing the purifying agent, we also
recommend that you clean or renew the dust side at the same time.
Comply with the following safety notes when changing the desiccant:
Dust hazard while changing the desiccant
When emptying the desiccant, increased dust generation may occur. This
desiccant dust can irritate the eyes and respiratory tract.
Wear a dust mask while changing the desiccant!
In order to avoid any eye irritations, wear protective goggles!
Risk of skidding!
If desiccant has been spilt on the floor, there is a risk of skidding caused
by the desiccant beads. Therefore, spilt desiccant must always be taken
up immediately.
