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INSTALLATION cont'd - TM-9-4520-271-140318
REMOVAL cont'd - TM-9-4520-271-140320

TM-9-4520-271-14 Improved Army Space Heater (IASH) Electric Powered Multi-fuel 140 000 BTU Model H-140 Manual
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TM 9-4520-271-14
0034 00
UNIT MAINTENANCE INSTRUCTIONS
ARMY SPACE HEATER H-140
NSN 4520-01-477-0568
THERMOSTAT ASSEMBLY
REMOVAL, DISASSEMBLY, REPAIR, ASSEMBLY, INSTALLATION
INITIAL SETUP:
Materials/Parts
Test Equipment
Lockwasher (item 23, WP 0062 00)
None
Lockwasher (item 26, WP 0062 00)
Lockwasher (item 33, WP 0062 00)
Tools and Special Tools
Wire harness (item 69, WP 0047 00)
Automotive general mechanic's tool kit
Wire marker tag (item 25, WP 0061 00)
(item 10, WP 0058 00)
Wire tie (item 24, WP 0061 00)
Electrical repair shop set (item 8, WP 0058 00)
Equipment Condition
Personnel Required
ASH disconnected from power source
One
(WP 0005 00)
Supply air hose assembly removed
References
(WP 0019 00)
None
Supply duct air screen removed (WP 0025 00)
WARNING
Contact with hot components can cause burns. Allow ASH to cool down before attempting service,
inspection, or maintenance activity.
REMOVAL
1.
Open right rear side door (1).
2.
Tag and disconnect following wires (2 thru 6) from terminal board TB1 (7) and terminal board TB3 (8), MODE
SWITCH S1 (9), and HIGH TEMP indicator DS2 (10).
S2-1?
TB1-5 from TB1-5
S2-3?
TB1-8 from TB1-8
S3-1?
TB3-3 from TB3-3
S3-3?
S1-51 from S1-51
S2-2?
DS2 from DS2
3.
Reconnect all other wires.
4.
Remove nut (11), lockwasher (12), and braided wire (13) from ground stud (14). Discard lockwasher.
5.
Cut wire ties as required.
0034 00-1






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