Maintenance of air dryers
Deadly risk!
Switch off operating voltage,
Unscrew or disconnect back-up fuse!
Risk of injury!
Prior to operation, depressurise the equipment by opening the safety valve „high pressure” (29)!
Risk of injury!
Caution with heated components!
Risk of injury!
Wear safety glasses during cleaning filters with compressed air.
1. Service air dryers (35) when the UMS monitoring system indicates that the dew point is rising.
• Switch off operating voltage!
• Turn off motor protective switch (
43
).
• Close
shut-off valve (6)
• Depressurise equipment!
- Open safety valve "high pressure” (
29
) for this.
2. Unscrew drying agent container (35)
• Unscrew all hose lines from the drying agent containers
(
35
).
• Unscrew bolts (
91
) of lower assembly bracket with the dry-
ing agent containers (
35
) and take both out.
35 91
35
91
3. Disassemble drying agent container
Risk of injury!
Do not touch drying agent with wet hands, heat build-up!
Risk of injury!
Wear safety glasses when working with drying agents.
• Unscrew nuts (
D
) of upper cover (
E
).
• Place drying agent container on the head.
• Remove lower cover (
F
) with the mounting bolts (
G
) from the cylinder tube
(
H
).
• Pour out drying agent (
I
).
• Remove upper cover (
E
) from the cylinder tube (
H
) and take out pressure
spring (
J
).
• Press out upper filter disc (
K
) with sealing ring (
L
).
• Take out o-rings (
M
), PE sealing rings (
N
) and filter disc (
O
) from the covers.
Note for disposal!
Dispose of used drying agents in accordance with the regulations
applicable in the country and site of use.
4. Clean drying agent container
• Dry clean all parts
• Replace worn o-rings (
M
).
• Replace filter discs (
K
) and (
O
).
• Replace worn sealing rings (
L
) and (
N
).
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