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| User Manual
Maintenance and repair of the dryer
KA-MT 1-8/D3
43
Reaffi x top plate:
Use a dyamometric key to tighten the
screws, and take care to observe the following
torques:
— 25 Nm in the case of KA-MT 1-4
— 50 Nm in the case of KA-MT 6-8
Tighten the screws crosswise in accord-
ance with the sequence shown on the right.
Repeat the process once.
Restart dryer as described on page 31,
After the purifying agent has been replaced.
Check that the connection is leak tight.
Correctly affi xing the top plate
Maintenance work to be completed every 24 months
Replace the membranes of solenoid valves
You should replace the membranes of solenoid valves every two years. Proceed as described
in section Replace solenoid valves . You must, however, replace the membranes only (con-
tained in the Service Kit for 24 months).
Maintenance work to be completed every 48 months
Replace check valves
Check valves are wear parts and must thus be replaced every 48 months, even if no damage
is visible.
Release pressure from dryer and shut down
the unit (see page 30 ).
Remove the securing screws at the rear of
the check valve plate.
Insert new balls and new springs and ensu-
re that they are not jammed.
Replace the seals at the securing screws
and tighten the screws.
If no other maintenance work is to be car-
ried out: Restart the dryer (see page 31 ).
Check valves
