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TM 10-4210-235-13
4-15. HOSES REPLACEMENT
This task covers: a Removal b Installation
INITIAL SETUP
Tools
General Safety Instructions
General Mechanics Tool Kit, Appendix B, Section III,
WARNING
item 1
Pipe Wrench, 18 Inch, Appendix B, Section III, item 2 Servicing the equipment with the system pressurized
can result in serious personal injury.
Automotive wrench, 18 inch, Appendix B, Section III,
item 2
Discharging nitrogen in an enclosed, unventilated space
can cause suffocation.
Materials/Parts
Antisieze Tape, Appendix E, Section II, item 4
Neoprene Washer, Appendix H, item 28
Equipment Condition
Close cylinder valves and relieve system pressure per
paragraph 4-11 steps (1) and (2).
a.
Removal (See figure 4-9.)
WARNING
Servicing the equipment with the system pressurized can result in serious personal injury.
Discharging nitrogen m an enclosed, unventilated space can cause suffocation
NOTE
Check that dry chemical and AFFF discharge ball valves are both closed.
(1)
Remove discharge hose assembly (I) if damaged.
(a)
Disconnect fitting (2) from hose reel swivel elbow Remove and discard neoprene washer (3)
(b)
Disconnect fitting (4) from discharge valve elbow.
(2)
Remove system cylinder hose assembly (5) If damaged.
(a)
Disconnect fitting (6) from system cylinder valve.
(b)
Disconnect fitting (7) from regulator elbow (8).
4-25
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