TM 5-6115-434-12
(a)
Remove drain caps from hot water tank drain (fig. 2-6), heat exchanger drain (fig. 2-6), and surge
tank drain (fig. 2-6). Open hot and cold water valves (fig. 2-6), hot water tank vent valve (fig. 1-12), and surge tank vent
valve until all water has drained from the system, then close vent valves.
(b)
Connect compressed air hose assembly (fig. 1-16) to compressed air outlet fitting (fig. 2-7). Hold
discharge end of air hose assembly against cold water outlet fitting (fig. 2-6). Start engine (para 2-14) and open
compressed air valve (fig. 2-7) approximately 20 to 30 degrees to deliver a small flow of compressed air into water
system to purge residual waters.
Caution
Observe water system tank and plumbing for excessive heating due to purge air. If external
temperature of water system components approaches safe touch temperature (160F
maximum), decrease compressed air flow, or shut off air flow completely until system cools.
Excessive temperatures will damage the pump and valve seals.
(c)
When all water has been purged, note which water connection is discharging maximum amount of
air, then close that connection. Continue to close connections discharging maximum amount of air until only one
connection remains open, then shut off compressed air, remove air hose assembly from cold water outlet fitting (fig. 2-6),
and close remaining connection and cold water outlet valve (fig. 2-6). Shut down engine (para 2-15). Disconnect
compressed air hose assembly from compressed air outlet fitting, coil hose assembly, and secure ends for stowage.
(4)
Close vacuum control valve (fig. 2-7). Disconnect vacuum hose assembly (fig. 1-16) from vacuum outlet
fitting, coil hose assembly, and secure ends for stowage. Install protective caps on vacuum outlet fitting and compressed
air outlet fitting.
(5)
Disconnect fuel hose assemblies (fig. 1-16) from fuel supply and from filter assembly (fig. 2-4). Drain hose
assemblies, coil, and secure ends for stowage. Open filter drain pet-cocks (fig. 2-4) on filter cases and allow fuel to drain
from filter assemblies. Disconnect filter assembly and fuel hose assembly from power unit fuel inlet fitting (fig. 2-4) and
allow fuel to drain from hose and inlet fitting. Install protective cap on power unit fuel inlet fitting.
(6)
Close and secure both condenser air inlet panels (fig. 1-1), condenser air outlet doors (fig. 1-1 and 1-2),
and vent air doors (fig. 1-1).
(7)
Remove three windstuds (fig. 2-5) and carefully remove divider panel from conditioned air outlet
compartment. Remove drain hoses (fig. 2-5) from panel and secure hoses to bottom of panel with adhesive tape for
storage.
Caution
Use care during removal of panel to prevent damage to insulating foam around edge of panel.
(8)
Remove wingnuts (fig. 2-1) securing battery cover and remove cover. Disconnect battery cable lugs from
battery terminals. Reinstall battery cover and secure with wingnuts.
b.
Stowage of Accessory Components.
(1)
Stow remote temperature sensing cable assembly, dual water hose assembly, three conditioned air duct
assemblies, and two conditioned air duct coupling assemblies in conditioned air outlet compartment (fig. 1-2) as shown in
figure 2-8. Secure stacked duct assemblies with strap.
(2)
Stow external fuel system filter assembly, 400 Hz electrical power cable assembly, 60 Hz electrical power
cable assembly, three fuel hose assemblies, supply and drain water hose assembly, and 400 Hz remote power cable
assembly in refrigeration compressors compartment (fig. 1-2) as shown in figure 2-9.
(3)
Stow spare filter elements, two conditioned air duct assemblies, and one conditioned air duct coupling
assembly in condenser compartment (no. 1 system) (fig. 1-1) as shown in figure 2-10. Secure duct assemblies with
positioning hooks to prevent movement during transport.
(4)
Stow two conditioned air duct assemblies and one conditioned air duct coupling assembly in condenser
compartment (no. 2 system) (fig. 1-1) as shown in figure 2-11. Secure duct assemblies with positioning hooks to prevent
movement during transport.
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