TM 9-4120-395-14&P
5-13. CAPILLARY TUBES.
This task covers:
a.
Removal
b.
Installation
INITIAL SETUP:
Tools:
Tool kit, service, refrigeration unit
Materials:
Equipment Conditions:
Power off at power source.
Both front door assemblies removed. See para 4-17.
General Safety Instructions:
Disconnect input power to the air conditioner before performing any internal
maintenance. Voltages used can kill. Shutting the unit off at the control panel
does not disconnect unit power.
a.
Removal.
(1)
Discharge the refrigerant system. See para 5-5.
(2)
Purge the system and debraze the fittings on the heating (1, Figure 5-3)/cooling (2) capillary tubes as
NOTE
Replacement cooling capillary tubes include refrigerant screen .
(3)
Remove capillary tubes.
b.
Installation.
NOTE
Replacement cooling capillary tubes include refrigerant screen .
(1)
Place new capillary tubes in unit.
(2)
Braze the fittings onto the heating (I)/cooling (2) capillary tubes as required. See para 5-7.
(3)
(4)
Leak test all newly connected joints and those in the repair area per para 5-8.
(5)
Evacuate and charge the refrigerant system. See para 5-9 and 5-10.
(6)
Install both front door assemblies. See para 4-17.
5-22