Section XI. SIGHT GAUGE

TM 5-4110-217-14

Section XI. SIGHT GAUGE

6-30.

General.

(2) Remove flare nuts at liquid indicator sight

The sight gauge assembly consists of a flare fitting

gauge (83) and remove gauge.

containing a sight glass. The sight gauge is used to

b. Cleaning and Inspection.

observe liquid refrigerant as it flows through the system.

(1) Clean all parts with an approved cleaning

If the unit contains sufficient refrigerant and is operating

solvent and dry thoroughly.

normally, the sight gauge will appear clear. If insufficient

(2) Inspect sight gauge for cracks, chips, or

refrigerant is present, bubbles will show in the sight

other damage paying particular attention to the threaded

glass.

parts. Replace if defective.

c. Installation.

6-31.

Sight Gauge.

(1) Place sight gauge (83) in position and

tighten flare nuts.

(2) Refer to paragraph 6-6 and purge

(1) Refer to paragraph 6-1 and pump down

refrigeration system.

(3) Refer to paragraph 6-9 and test for leaks.

6-15