TM 10-4520-262-12&P 0027 00
0027 00-2
7. Disconnect the two combustion air blower electrical connectors (12).
8. Carefully lift the combustion air blower assembly (8) from the heater guiding the combustion air
inlet hose (5) through the side wall of the lower housing.
9. Remove the blower assembly clamp (7) and set aside.
10. Disconnect the combustion air blower assembly (8) from the combustion air inlet hose (5) by
loosening the hose clamp (15).
11. Install a new combustion air blower assembly (8) by installing the combustion air inlet hose (5) on
the intake (16) of the combustion air blower assembly. Tighten hose clamp (11) securely.
12. Install the blower assembly clamp (7) on the body of the combustion air blower assembly (8).
13. Lower the combustion blower assembly (8) into the lower housing, guiding the combustion air
inlet hose (5) through the hole (17) in the side wall of the lower housing.
14. Connect electrical connectors (12).
15. Tighten the screw (6) the secures the clamp (7) to the body of the combustion air blower
assembly.
16. Tighten the screws (2) that secures the clamp (7) to the heated air blower assembly (8).
17. Install the combustion air blower duct (9) onto the outlet (10) of the combustion air blower
assembly. Be sure that the rubber sleeve in the duct is installed on the outlet before installing the
blower duct. Tighten the hose clamp (11) securely.
18. Install the combustion air inlet end fitting (4) on the end of the combustion air inlet hose (5).
19. Install the combustion air inlet bracket (3). Secure with two screws (2).
20. Install the combustion air inlet cover (1). Secure the two, quarter turn screws.
