Robinair 16900 Refrigerant Identifier - Manual (Page 19)

16900 Refrigerant Identifier 17
MAINTENANCE PROCEDURES
SAMPLE FILTER REPLACEMENT
Inspection Frequency: Inspect the sample filter before and after
each use of the instrument. Failure to replace the sample filter when so
indicated may result in out-of-warranty damage to the instrument.
What To Look For: Inspect the outside diameter of the white element for
the appearance of red spots or discoloration, which indicate the sample
filter requires replacement. Note: Inspect only the outside diameter. It is
normal to see red indicating dye at the ends of the filter element.
Replacement Procedure:
1. Power down the instrument, and disconnect the sample hose.
2. Obtain replacement filter, Robinair part no. 16913.
3. Remove existing filter by pulling it straight up and out of the
retaining clip, and disconnecting the tube connections. Do not allow
the free tube ends to slip back into the instrument.
4. Discard the existing filter.
5. Install the free ends of the instrument tube onto the ends of the
replacement filter, aligning the filter flow arrow with the arrow on
the instrument case.
6. Carefully slide the tubes back into the instrument case, and position
the filter into its retaining clip on the instrument case.
7. Inspect the sample hoses for signs of oil entrapment. The need
to replace the sample filter may indicate oil contamination in the
sample hoses. Replace or flush the sample hose(s) if oil entrapment
is found.
Maintenance