TM 10-4520-262-12&P 0021 00
0021 00-2
3. Wrap a rag around the end of the fuel hose (1) connected to the sediment strainer outlet fitting (7)
and grasp the end of the fuel hose near the fuel hose fitting (9) with a pair of pliers. Be sure that
the rag is between the hose and the pliers to protect the hose from damage.
4. Holding the fuel hose (1) securely, use a wrench to loosen the fuel hose fitting (9). Remove the
fuel hose fitting (9) from the sediment strainer outlet fitting (7). Have a petroleum absorbment mat
or tray with absorbent material nearby to collect any fuel that may be in the fuel hose.
5. Wrap a rag around the end of the fuel hose (1) which is connected to the float assembly inlet
fitting (10) and grasp the end of the fuel hose near the fuel hose fitting (11) with a pair of pliers.
Be sure that the rag is between the hose and the pliers to protect the hose from damage.
6. Holding the fuel hose (1) securely, use a wrench to loosen the fuel hose fitting (11). Remove the
fuel hose fitting (11) from the float assembly inlet fitting (10). Place a small section of petroleum
absorbment mat at the base of the lower heater housing to collect any residual fuel that may be in
the fuel hose.
7. Pull the fuel hose and rubber grommet (3) out through the opening in lower housing assembly.
Remove the grommet from the hose and re-install it back in the lower housing assembly opening.
8. Install a new fuel hose by inserting the end of the fuel hose with the fitting that installs to the
sediment strainer assembly through the rubber grommet (3) from the inside of the heater, guiding
it out of the lower heater housing. It may be easier to insert the fuel hose through the grommet by
wetting the inside surface of the grommet. Move the fuel hose fitting (11) into position near the
float assembly inlet fitting (10).
9. Wrap a rag around the end of the fuel hose (1) which is to be connected to the float assembly
inlet fitting (10) and grasp the end of the fuel hose near the fuel hose fitting (11) with a pair of
pliers. Be sure that the rag is between the hose and the pliers to protect the hose from damage.
10. Holding the fuel hose (1) securely, use a wrench to tighten the fuel hose fitting (11) securely.
11. Wrap a rag around the end of the fuel hose (1) which is to be connected to the sediment strainer
outlet fitting (7) and grasp the end of the fuel hose near the fuel hose fitting (9) with a pair of
pliers. Be sure that the rag is between the hose and the pliers to protect the hose from damage.
12. Holding the fuel hose (1) securely, use a wrench to tighten the fuel hose fitting (9) onto the
sediment strainer outlet fitting (7).
13. Install a new tie wrap (4) in the same location as before and secure the wire loom (6) to the
sediment strainer outlet fitting (7) and the fuel hose (1).
