Robinair 16900 Refrigerant Identifier - Manual (Page 20)

18
SAMPLE HOSE INSPECTION AND CLEANING
Inspection Frequency: Inspect sample hose(s) before and after each
use of the instrument and after every replacement of the sample filter.
What To Look For: Inspect the inside diameter of the inner tube for
signs of cracking, fouling, oil entrapment, kinks, or other signs of wear.
Oil contamination is cleansed by flushing the hose(s) as described
below. Immediately replace hoses that show signs of wear.
Sample Hose Flushing Procedure:
1. Remove the hose from the instrument; flush it with isopropyl alcohol.
WARNING
To prevent personal injury, flush hoses away from sparks,
open flames, or any other ignition source and in an area with
appropriate ventilation.
2. Dry the hose by blowing clean, dry, oil-free nitrogen or shop air
through the inner tube, or allow the hose to air-dry for several hours.
Do NOT dry the hose with lubricated shop air.
3. When the hose is completely dry, inspect for signs of wear.
Maintenance