4-34. HEAT EXCHANGER ASSEMBLY.
This task consists of:
General Safety Requirements:
Tool Kit, General Mechanics (Item 1, App B)
Fuels are toxic and flammable. Do not get on person
Unit disconnected from power source (para 2-8)
or clothing. Do not use near open flame. Area
Supply duct cover removed (para 4-22)
should be well ventilated.
Supply air screen removed (para 4-23)
Transformer ass'y removed (para 4-32)
Fuels Flammable / No Smoking.
Contact with hot components can cause burns.
Allow unit to cool down before attempting service/
Lockwasher (Item 1, App H)
Gasket (Item 59, App F)
Anti-seize Compound (Item 3, App E)
Wire Ties (Item 11, App E)
Wire Tags (Item 9, App E)
Disassemble only to the level required to make repairs.
Disassembly (Refer to Figure 4-61)
Remove eight nuts (1), eight lockwashers (2), eight flat washers (3) and thermostat
bracket (4). Discard lockwashers.
Remove cover (5) and gasket (6). Discard gasket.
Open right side rear door (7) and right side front door (8).