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6. Check the cyclone separator housing and hose line for leaks.
7. Close the door.
10.9.2 Option dd
Combination filter maintenance
Precondition The machine is shut down.
The machine is standing level.
The machine is fully vented, the pressure gauge reads 0 bar.
All compressed air consumers are disconnected and the air outlet valves are open.
WARNING
Danger of injury from compressed air!
Filter combination is pressurised during operation. Serious injury can result from loosening or open‐
ing components under pressure.
➤ Make sure there is no electrical power present on the machine. Check: Pressure gauge reads
0 bar!
➤ De-pressurise the combination filter.
Fig. 82 Combination filter maintenance
1
Filter combination
a
Pre-filter
b
Micro-filter
2
Shut-off ball valve for condensate drainage
3
Condensate drain hose fittings
4
Cyclone separator
5
Pressure differential gauge (check fittings
for Service personnel)
6
Filter head
7
Casing gasket
8
Filter element
9
Filter housing
➤ Open the right-hand access doors.
10 Maintenance
10.9 Options
No.: 9_9425 01 E
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
147
Option dd