TM 9-2320-211-20
b. Removal.
c. Drive Shaft Locking Plungers (Fig. 2-230).
(1) Close the heater shutoff valve.
(1) R e m o v a l .
(2) Disconnect the electrical lead.
(a) Remove the self-locking nut attaching
(3) Disconnect the fuel lines from the fuel
the locking plunger housing to the stud on the rear
pump inlet and outlet.
crossmember.
(4) Remove the two screws holding the fuel
(b) Disengage the plunger from the slot in
pump integral bracket to the van body, and remove
the pawl, and remove the plunger housing from the
the fuel pump.
stud .
(2) Installation.
(a) Engage the plunger in the slot in the
pawl, then depress the plunger until it is possible to
attach the plunger housing to the stud of the rear
crossmember.
(b) Secure the housing to the stud with a
self-locking nut.
2-263. Heater Fuel Pump
WARNING
Do not permit smoking, sparks, or open
flame within 60 feet of the vehicle during
any o p e r a t i o n i n v o l v i n g r e m o v a l o r
draining of the fuel-carrying components.
a. Plunger Spring and Filter Element Servicing.
(1) Remove the bottom cap from the fuel
pump.
(2) Wash the filter element, spacer, spring,
and cover in mineral spirits paint thinner. Inspect
the filter element for cracks and other damage;
replace it if necessary, Test the action of the spring.
Replace a weak, bent, or broken spring.
(3) Install the parts in reverse order of
removal, using a new gasket in the pump cap.
c. Installation.
(1) Secure the fuel pump with its integral
bracket to the van body with two hexagon-head
screws.
(2) Connect the fuel lines to the fuel pump
inlet and outlet.
(3) Connect the electrical lead.
(4) Open the heater shutoff valve. (fig. 2-240).
2-264. Heater Fuel Filter
a. Removal.
(1) Close the heater shutoff valve.
(2) Place a suitable container under the filter
bowl to catch escaping fuel.
(3) Loosen the clamp screw holding the filter
bowl, and remove the clamp and bowl.
(4) Unscrew the filter from the filter head.
b. Installation.
(1) Screw the filter into the filter head.
