|
| |
TM 55-2915-335-30&P
2-10. PUMP AND HOUSING ASSEMBLY - lNSPECT/REPLACE/REPAIR (Cont)
2-10
b. Drain any excess fuel and solvent from drain
port (2).
c. Blow-dry outer surfaces of pump with compressed
air, 30 psi (207 KPa) maximum.
2. REMOVAL
a. If cable assembly (3) is attached, lift rubber in-
sulator boot from positive terminal. Unscrew con-
nector from positive terminal.
Apply pressure directly over valve spring
when opening or closing valve stem as-
sembly. Trying to compress valve spring
from free end of valve arm will cause
b.
c.
d.
e.
f.
valve arm to bend. When removing or in-
stalling shoulder screw, keep valve arm
depressed.
Place thumb on valve stem assembly (4), above
spring (5). Press valve stem assembly (4) in toward
pump housing.
Unscrew shoulder screw (6). Remove cable as-
sembly (3). Rotate valve stem assembly (4) away
from cartridge (7).
Using a small screwdriver, pry end of retaining
ring (8) from seat in pump housing (1). Place
screwdriver tip between retaining ring and pump
housing. Rotate pump housing counterclockwise
to remove retaining ring.
Screw cartridge pulling tool (9) (Appendix D) into
drain port (2). Slide hammer of pulling tool (9)
against bolt head to remove cartridge (7) from
fuel boost pump (1). Unscrew pulling tool from
cartridge.
Use a wooden or plastic probe to remove pack-
ings. Do not use a screwdriver or other sharp me-
tal tool. Remove three preformed packings (10)
from pump cartridge (7). Discard packings; they
cannot be reused.
GO TO NEXT PAGE
2-22
|
