TM 5-3805-258-24-2
ENGINE
DISASSEMBLY AND ASSEMBLY
FUEL TRANSFER PUMP
Models 950BNSCE and 950BSCE
DISASSEMBLE FUEL TRANSFER PUMP
4. Put 4L7464 Silicone Grease on O-ring (15)
and place O-ring on the tappet assembly (14).
start by:
Place tappet assembly with O-ring in housing.
a) remove fuel transfer pump
5. Put 4L7464 Silicone Grease on O-ring (13)
and install O-ring on sleeve (11).
WARNING
6. Place piston (12) in sleeve. Place sleeve and
piston in housing.
Cover (2) is under spring tension. To prevent pos-
sible personal injury, carefully remove screws (1).
7. Place seal (8), valve (7), washer (6), spring
(5), and valve (4) in housing.
1.
2.
3.
4.
5.
Remove two screws (1) that hold cover (2)
to housing (3). Remove cover, valve (4),
spring (5), washer (6), valve (7), and seal (8).
Remove preformed packings (9 and 10) from
cover.
Remove sleeve (11) and piston (12). Remove
preformed packing (13) from sleeve.
Remove tappet assembly (14), and pre-
formed packing (15).
8. Put 4L7464 Silicone Grease on O-rings (9
and 10) and install O-rings in cover (2). Place
cover on housing, compressing spring. Install
two screws (1) that hold cover in place.
Tighten capscrews.
Remove two screws (16), cover (17), pre-
formed packing (18) and valve (19) from
housing.
Remove preformed packing (20) from hous-
ing.
ASSEMBLE FUEL TRANSFER PUMP
1. Clean all parts and be sure all passages are
open.
2. Install O-ring (20) in housing (3).
NOTE: Valves (4), (7), and (19) must be installed
as shown for pump to operate correctly.
Place valve (19) in side bore of housing. Put
a 4L7464 Silicone Grease on O-ring (18) and
install O-ring on cover (17). Place cover on
housing and install two screws (16) that hold
the cover in place.
5-90a/5-90b (blank)
