TM 5-3805-258-24-2
ENGINE
DISASSEMBLY AND ASSEMBLY
6.
7.
8.
9.
Remove O-ring seal (17) from the pump hous-
ing.
Push guide (18) through the pump housing and
remove guides (23) and (18) together. Remove
rod (20), guide (23), O-ring seal (19) and tap-
pet (21) from guide (18). Remove ring (22)
from tappet (21).
Remove connector (24), valve (26) and seal
(25) from the pump housing.
Remove plug (30), spring (28), valve (29) and
seal (27) from the pump housing.
ASSEMBLE FUEL TRANSFER PUMP 1256-16
1. Clean all parts and be sure all passages are
open.
2. Be sure the O-ring seal is in position on plug (4)
and put 4L7464 Silicone Grease on the O-ring
seal.
NOTE: Valves (2), (6) and (19) must be installed
as shown, for the pump to operate correctly.
3. Install seal (1), valve (2), spring (3) and plug
(4) in the pump housing as shown. Tighten plug
(4) to a torque of 20 ± 7 N·m (15 ± 5 lb. ft.).
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