TM 9-4520-272-14&P
FIELD (UNIT) MAINTENANCE
LARGE CAPACITY FIELD HEATER
NSN 4520-01-500-1534
FUEL FILTER
SERVICE, REPLACE
INITIAL SETUP:
Tools
Personnel Required
Tool Kit, General Mechanics (Item 1, WP 0092
MOS 63J or 52C
Wrench, Oil Filter (Item 19, WP 0092 00)
Materials/Parts
Equipment Condition
Rags, Wiping (Item 4, WP 0119 00)
Heater shut down and cool (WP 0005 00)
Sealant, Thread (Item 2, WP 0119 00)
Main battery switch OFF and handle removed.
SERVICE
1. To service the fuel filter, unscrew the fuel filter cartridge (1) with an oil filter wrench. Wipe up any
spilled fuel with a rag.
2. Discard old fuel filter cartridge (1) in accordance with Unit SOP and local environmental regulations.
3. Install a new fuel filter cartridge (1) by engaging the opening on the top of the fuel filter cartridge with
the threaded filter fitting. Hand tighten only.
REPLACE
1. Loosen fitting (2) and remove hose (3) from the fuel filter housing (4).
2. Remove fitting (5), clean any residual pipe joint compound or teflon tape and set aside.
3. Loosen fitting (6) and remove hose (7) from fuel filter housing (4).
4. Note orientation and remove the elbow fitting (8), clean any residual pipe joint compound or teflon
tape and set aside.
5. Remove reducing fitting (9), clean any residual pipe joint compound or teflon tape and set aside.
6. Loosen fitting (10) and remove hose (11) from fuel filter housing (4).
7. Note orientation and remove the elbow fitting (12), clean any residual pipe joint compound or teflon
tape and set aside.
8. Remove reducing fitting (13), clean any residual pipe joint compound or teflon tape and set aside.
9. Remove fuel filter housing mounting bolt (14), nut (15), and flat washer (16) on right side of housing.
10. Remove fuel filter housing mounting bolt (17), nut (18), and flat washer (19) on left side of housing.
0027 00-1
