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 TM 9-4120-430-14
0036 00
ASSEMBLY
WARNING
DRY CLEANING SOLVENT P-D-680
P-D-680 solvent vapors are toxic. Avoid prolonged or repeated breathing of vapors
or solvent contact with skin. Use only with adequate ventilation. Solvent is
flammable and should not be used near open flame. Fire extinguishers should be
readily available when solvent is used.
1.
Clean heater brackets (4, 7, and 19) with dry cleaning solvent (Item 16, WP 0069 00) and lint-free cloth (Item 9, WP
2.
Attached bracket (19) to bracket (7) with two lockwashers (25) and screws (24).
3.
Attached marker strip (21) and terminal board (TB3) (20) to bracket (7) with two lockwashers (25) and screws (24).
4.
Install insulator washer (17) and flat washer (16) onto each heating element (18) and insert into bracket (19). Secure
heating element with internal tooth lockwasher (15) and nut (14).
5.
For each heating element (18), connect leads (12 and 13) to TB3. Refer to wiring list and schematic (WP 0038 00).
6.
Slide heater support bracket (4) over ends of heating elements (18).
INSTALLATION
1.
Insert and position heater assembly (10) into unit housing.
2.
Insert H-channel seal (11) between heater mounting bracket (7) and the evaporator coil.
3.
Secure heater mounting bracket (7) to base of unit housing using one lockwasher (6) and screw (5).
4.
Secure heater mounting bracket (4) to base of unit housing using two flat washers (3), lockwashers (2), and screws
(1).
5.
Secure heater support bracket (7) to inner bulkhead of unit housing using three lockwashers (9), and screws (8).
NOTE
Screws (8) are also used to secure support clamps on the compressor side of the inner bulkhead.
6.
Refer to wire lists (WP 0038 00) and connect leads (1 and 2) to terminal board (TB3).
7.
Install junction box. See WP 0028 00.
8.
Install heater cutout switch S3. See WP 0034 00.
9.
Install top cover. See WP 0018 00.
0036 00-3
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