Maintenance and repair of the dryer
K-MT1-8_EN_08—2014 45
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 37).
► Remove the securing screws at the rear of the check valve plate.
► Insert new balls and new springs and ensure that they are not jammed.
► Replace the seals at the securing screws and tighten the screws.
Check valves
► With regeneration gas return (optional):
Also replace the two additional check valves, following the above
instructions.
► If no other maintenance work is to be carried out: Restart the dryer (see
page 38).
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