Carrier Graviner Mk7, Инструкция по установке, эксплуатации и обслуживанию

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March 2021 Page 87 of 143 59812-K007 Rev 17
Business Confidential
Ensure: The Alarm and Pre-Alarm level settings are correct,
The Detector is NOT Isolated,
There are NO active Faults shown.
If any Faults are indicated, please take appropriate actions to clear the indication(s).
10. Carry out Parameter readings of each Mk7 Detector prior to any cleaning taking place. See section
4.5.
This will show the current status of the selected Detector. Note the readings for each Detector.
See section 4.6 for proper Detector Head removal, cleaning and refitting. Ensure Detector Heads &
Detector base O-Ring seals are properly fitted with Molykote O-Ring Lubricant.
Clean each Detector twice using the recommended cleaning buds and fluid and repeat the Parameter
Reading process.
Again, note the readings for each Detector
Compare the Current Contamination Value with the Original Contamination Value after the Detector
has been cleaned. Any Detector NOT recovering to within 20% of the Original Contamination Value
after cleaning should be replaced as it is at the end of its Service Life.
11. Prior to refitting the detector head inspect the detector base. Document any concerns with:
Water droplets in the detector may indicate a leak in the water cooling lines or a problem with the
lube oil separator, particularly if the engine has not been in use for some time.
Figure 139 Water Droplets in the base.
Emulsified oil (foam in the detector base) may indicate cylinder or liner cooling water leaks or a
problem with the lube oil separator. If allowed to build up over time the inlet and outlet of the
detector may become blocked preventing the measurement of oil mist.