TM 10-8145-222-23
MAINTAINER MAINTENANCE
SIGHT GLASS
REPLACE
INITIAL SETUP:
Tools and Special Tools
References
Face Shield (WP 0097, Item 20)
TM 10-8415-222-10
Gloves, Rubber (WP 0097, Item 21)
Refrigeration Equipment
Tool Kit (supplement) (WP 0096, Table 2, Item 7)
TM 10-8145-222-23P
Service Refrigeration Ordnance
Tool Kit (WP 0096, Table 2, Item 6)
Equipment Condition
Materials/Parts
Refrigeration unit shut down (TM 10-8415-222-10)
External electric power disconnected (TM 10-8415-
Threadlocker, Sealing Compound (WP 0097, Item 41)
222-10)
Personnel Required
Utilities Equipment Repairer
REPLACE
1. Recover refrigerant (WP 0014, Service).
2. Disconnect battery negative (-) terminal (WP 0053, Disconnect).
3. Remove front panel assembly (WP 0013, Remove).
4. Remove left-side panel (WP 0013, Remove).
NOTE
The use of a step aid may be required to access sight glass.
5. Unscrew and remove sight glass (Figure 1, Item 1) and O-ring (Figure 1, Item 2) from receiver (Figure 1,
Item 3).
6. Remove O-ring (Figure 1, Item 2) from sight glass (Figure 1, Item 1). Discard O-ring.
7. Install new O-ring (Figure 1, Item 2) onto new sight glass (Figure 1, Item 1).
8. Apply sealing compound to pipe threads of new sight glass (Figure 1, Item 1).
9. Install sight glass (Figure 1, Item 1) into receiver (Figure 1, Item 3) and tighten.
10. Perform leak check on sight glass (WP 0014, Service).
11. Connect battery negative (-) terminal (WP 0053, Reconnect).
12. Perform evacuation and dehydration (WP 0014, Service).
13. Charge system with refrigerant (WP 0014, Service).
0070-1