TM 5-3655-210-12
b. Disassembly. Refer to figure 4-104 or 4-105
and solder cracks. Replace the gasket if worn or
damaged. Inspect for damaged threads and replace
and disassemble the manifold.
WARNING
damaged parts.
c. Installation. Reverse procedures in a. above.
Dry cleaning solvent, P-D-680 or P-S-
4-110. Fuel Pump
661, used to clean parts is potentially
dangerous
to
personnel
and
a. Removal.
property. Use in a well-ventilated
(1) Pull the disconnect plug (31, fig. 4-106).
(2) Remove the four capscrews (11) that
area as the fumes are dangerous if
secure the plate (13) to the combustion head.
inhaled.
Avoid repeated and
(3) Remove the four machine screws and
prolonged skin contact. Do not use
washers securing the blower (15) to the pump (10) and
near open flame or excessive heat.
slide the blower (15), plate (13), and gasket (14) out and
Flash point of solvent is 100F.-138F.
away from the heater.
(38C.-59C.).
(4) Remove the two fuel tubes (6 and 7).
c. Cleaning, Inspection and Repair. Wipe off the
(5) Disconnect and tag the taped leads (19).
motor and limit switch with a cloth dampened in a
(6) Remove the four capscrews (24) securing
cleaning solvent. Wash all other parts in a solvent.
the pump (10). Remove the fuel pump from the heater.
Inspect the brushes for wear and replace if worn
b. Disassembly.
Refer to figure 4-107 and
excessively. Inspect the pump, motor, and switch for
disassemble the fuel pump.
cracks, breaks, or any other damage. Replace if
c. Installation. Reverse procedures in a. above.
damaged. Inspect the pipes and fittings for breaks,
4-111. Fuel Manifold And Filter Assembly
leaks and damaged thread. Replace all excessively
a. Fuel Manifold Removal.
damaged parts.
(1) Disconnect the plug (31, fig. 4-106).
d. Refer to figure 4-104 and 4-105 and reassemble
(2) Remove the wire to the solenoid valve (23)
the manifold, installing new gaskets at all points where
(3) Loosen the two tube nuts (18, fig. 4-100)
they are needed.
and remove the tubes.
e. Installation.
Reverse the procedures in a.
(4) Remove the three fuel tubes (6,7, and 22,
above, installing new gaskets (14, fig. 4-100).
fig. 4-106) by unscrewing the six tube nuts (9) and
4-109. Blower
lifting out.
a. Removal.
(5) Remove the fuel tube (17, fig. 4-108).
(1) Pull the disconnect plug (30, fig. 4-106).
(6) Remove the two screws (8, fig. 4-106),
(2) Remove the four capscrews (11) that
nuts, and washers securing the fuel filter bracket.
secure the plate (13) to the combustion head.
(7) Remove the four nuts, washers, and
(3) Remove the four machine screws and
capscrews (24) securing the manifold to the pump
washers securing the blower (15) to the pump (10) and
assembly (10).
slide the blower (15), plate (13), and gasket (14) out and
(8) Remove
the
two
capscrews
and
away from the heater.
lockwashers securing the manifold to the base.
(4) Remove the two fuel tubes (6 and 7, fig. 4-
Remove the manifold.
106).
b. Fuel Filter Disassembly. Refer to figure 4-109
(5) Disconnect and tag the taped leads (19).
and disassemble the fuel filter.
WARNING
c. Manifold and Solenoid Disassembly. Refer to
Dry cleaning solvent, P-D-680 or P-S-
figure 4-110 and disassemble the manifold and
661, used to clean parts is potentially
solenoid.
dangerous
to
personnel
and
WARNING
property. Use in a well-ventilated
Dry cleaning solvent, P-D-680 or P-S-
area as the fumes are dangerous if
661, used to clean parts is potentially
inhaled.
Avoid repeated and
dangerous
to
personnel
and
prolonged skin contact. Do not use
property. Use in a well-ventilated
near open flame or excessive heat.
area as the fumes are dangerous if
Flash point of solvent is 100F.-138F.
inhaled.
Avoid repeated and
(38C.-59C.).
prolonged skin contact. Do not use
b. Cleaning, Inspection and Repair. Wash all parts
near open flame or excessive heat.
in a cleaning solvent, inspect for bent, cracked, or
Flash point of solvent is 100F.-138F.
broken housing or fan. Straighten bent fins
(38C.-59C.).
4-117
