TM 9-4520-271-14
UNIT MAINTENANCE INSTRUCTIONS
ARMY SPACE HEATER H-140
NSN 4520-01-477-0568
VENTILATION AIR FAN AND MOTOR ASSEMBLY
REMOVAL, INSTALLATION
INITIAL SETUP:
Materials/Parts Continued
Test Equipment
Locknut (34, WP 0062 00)
None
Lockwasher (item 28, WP 0062 00)
Rubber adhesive (item 1, WP 0061 00)
Tools and Special Tools
Thread locking sealing compound
Automotive general mechanic's tool kit
(item 20, WP 0061 00)
(item 10, WP 0058 00)
Wire marker tag (item 25, WP 0061 00)
Personnel Required
Two
Equipment Condition
ASH disconnected from power source
References
Fuel pump and solenoid valves removed
None
Return air hose assembly removed (WP 0019 00)
Materials/Parts
Return duct air screen removed (WP 0025 00)
Insulation (item 94, WP 0047 00)
Top panel assembly removed (WP 0021 00)
Insulation (item 95, WP 0047 00)
WARNING
Contact with hot components can cause burns. Allow ASH to cool down before attempting service,
inspection, or maintenance activity.
REMOVAL
1.
Open side rear door (1) and side front door (2).
2.
Remove four locknuts (3), screws (4), and eight washers (5). Discard locknuts.
3.
Loosen two setscrews (6) and remove key (7).
NOTE
Two people are required to remove the motor.
4.
Turn motor (8) onto its base and slide motor off of fan assembly (9).
5.
Lay motor (8) on its right side with junction box facing up.
6.
Remove two screws (10) and cover (11). Gently remove wires (12) from junction box.
7.
Tag and disconnect wires (12) and remove two wire nuts (13).
8.
Remove two white wires (12) through hole in junction box on motor (8).
0032 00-1
