ABB ProKiln GAC400 Operating Instruction page 116

116 ProKiln GAC400 PROBE GAS SAMPLING SYSTEM | OI/GAC400-EN REV. A
... 11 Maintenance
... Maintenance work
4. When working on the retractor and gas sampling probe,
additionally actuate the EMERGENCY-STOP -15S7 or -150S3
switch for reasons of safety and turn the Safety switch -
101S2 at the probe rear cabinet to OFF position, to prevent
any movement of the probe. This switch can also be secured
with a padlock. Additionally, secure that the flange shutter
remains closed.
5. Manually lock the flange shutter.
6. Remove incrustations (see Probe: Removing incrustations
on page 112)
7. Use the probe tip air blaster nozzle tool 42mm (see Required
tools on page 108) to unscrew, first the nozzle
the filter cartridge 3 itself.
8. Inspect the filter and clean, if possible, with compressed-air
and/or with hot water and soap
9. Replace filter if it is not possible to clean anymore due to
excessive clogging, or if it looks damaged. Part is available
through ABB Service.
10. Replace the filter sealing
below. Use tape to seal the ends of the string, making
installation easier. Install inside the air blaster nozzle
twisting it 2,5 – 3 times round inside. Part is available through
ABB Service.
11. Inspect the air blaster nozzle (1) for wear. Clean if necessary.
12. Replace air blaster nozzle
anymore, or if it looks damaged. Part is available through
ABB Service.
13. Use the Wrench size 30 high head (see Required tools on
page 108) to unscrew center tube
14. Inspect the center tube
tool to center tube (see Checking for leaks on page 108).
15. Replace center tube
1 and then
or if it looks damaged. Part is available through ABB Service.
16. Assemble the parts inside the probe in the following
sequence
17. Manually unlock the flange shutter.
2 with ceramic string 17cm shown
1 if it is not possible to clean
4.
4 for wear. Clean if necessary. Use
4 if it is not possible to clean anymore,
4,3,2,1
1 by