TM 9-4520-258-14
1-9. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS - continued.
b. Rear and left Side. (Refer to Figure 1-3)
(1) Exhaust Pipe. The exhaust pipe (1) provides for removing the exhaust gases from the heater during operation.
(2) Exhaust Pipe Stowage Compartment. The exhaust pipe is stored in the exhaust pipe stowage compartment (2)
when the ASH is being shipped or not in use.
(3) Exhaust Cover Plate. The exhaust cover plate (3) covers the ASH exhaust port when shipped or in stowage.
The exhaust cover plate is stowed in the exhaust elbow stowage position when the elbow is attached to exhaust
port.
(4) Sight Glass. The sight glass (4) is used to look into the burner/heat exchanger compartment to ensure that
ignition is on and the burner flame is functioning properly.
(5) Retractable Wheel Assembly (left side). The retractable wheel assembly (5) allows an individual to move and
position the ASH when used in conjunction with the right side wheel assembly.
(6) Exhaust Elbow. The exhaust elbow (6) when attached to the exhaust port at the rear of the ASH directs exhaust
fumes upward into the exhaust pipe.
(7) External Fuel Connection. The external fuel connection (71 is a quick disconnect and is used to connect the
external fuel hose to the ASH. It is protected by a removable cap.
(8) Fuel Selector Valve. The fuel selector valve (8) allows the user to select either an external fuel source or the
ASH's internal fuel tank.
(9) Fuel Tank Cap. The fuel tank cap (9) prevents dirt and debris from entering the internal fuel tank. The cap is
removable for filing the internal fuel tank.
(10) Fuel Gage. The fuel gage (10) indicates the amount of fuel remaining in the internal fuel tank.
(11) External Fuel Hose. The external fuel hose (11) connects to the unit external fuel connector and an external fuel
source.
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