TM 5-4220-233-14
4-23. CYLINDER PRESSURE GAUGE(S).
This task covers:
a.
Removal
b.
Cleaning
c.
Installation
INITIAL SETUP :
Tools
Materials/Parts Appendix D
Socket Wrench Handle with 6" Extension
Ant-seizing Tape (Item 16)
Screwdriver, Flat Tip
Plastic Bags ( item 2)
Socket, 5/16"
Equipment Conditions
Wrench, 11/16"
depressurize Compressed Gas System
Wrench, 7/8"
(paragraph 4-19 )
Wrench, 1-1/16"
a.
Removal.
WARNING
Prior to performing this task, maintenance personnel should review Section
VII, general guidelines on removing and installing components on life
support systems. Failure to follow proper procedures may result In system
contamination.
Figure 4-5. Replace Cylinder Pressure Gauge(s).
(1) Disconnect hose assembly (1) from CGA347 fitting (2) at end of pressure gauge tee fitting (3).
(2) Disconnect tube assembly (4) from elbow (5) on branch of tee fitting (3) and from elbow (6) on 1/4-turn
ball valve (7).
(3) Remove three screws (8) and attaching washers (9), and nuts (10) to separate retaining ring (11) from
control panel (12).
4-24
