|
| |
TM 10-4320-351-14
4.12.2 Replace Fuel Transfer Pump Discharge Housing O-Ring. (Refer to figure 4-10.)
This task consists of:
a. Removal
b. Installation
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Tool Kit, General Mechanics
Petrolatum (Appendix F, Section II, Item 10)
(Appendix B, Section III, Item 1)
Anti-Seize Compound, Molybdenum Disulfide
(Appendix F, Section II, Item 3)
General Safety Requirements:
Equipment Condition:
Pump assembly shut down (para. 2.6)
WARNING
Fuels are toxic and flammable. Do not get on person
or clothing. Work in well ventilated area. Do not
smoke. Ensure equipment is well grounded.
a.
Removal.
(1)
Disconnect pumpage overtemperature cable W103 (1) at engine module electrical connector panel.
(2)
Remove the six socket head screws (2) and flat washers (3) that secure the discharge housing assembly
(4) to the fuel transfer pump (5).
(3)
Remove discharge housing (4). Use care to avoid damage to the pumpage overtemperature sensor on
bottom of housing.
(4)
Remove and discard the O-ring (6) from the discharge housing assembly.
(5)
Inspect and clean O-ring groove as required. Any debris or foreign material may prevent the O-ring from
seating properly.
(6)
Inspect discharge valve (7) for dents, bending or any damage that prevents free action or seating. Replace
discharge valve if damaged. Refer to paragraph 4.12.3.
b.
Installation.
(1)
Lightly lubricate O-ring (6) with petrolatum and install in o-ring groove. Do not allow the O-ring to twist or
roll during installation.
(2)
Lubricate with anti-seize compound and install the six socket head screws (2) and flat washers (3) that
secure the discharge housing assembly to the fuel transfer pump. Tighten socket head screws in a
crossing pattern.
(3)
Connect pumpage overtemperature cable W103 (1) to engine module electrical connector panel and
perform test (para. 4.9.2.c.).
4-24
|
