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TM 10-4320-351-14
(4)
Install thrust washer (1).
(a)
Install dowel pin (2) in shaft.
(b)
Install thrust washer (1) so that dowel pin (2) engages slots in washer.
(5)
Install shaft seal assembly and shaft nut. Refer to paragraph 5.4.2.
5.4.4 Repair of Rotary Vane Pump. (Refer to figure 5-6.)
This task consists of:
a. Removal
b. Repair
c. Installation
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Key, Socket Head Screw, 9/64"
Washer, Lock (Appendix I, Item 59)
(Appendix B, Section III, Item 3)
Anti-Seize Compound, Molybdenum Disulfide
(Appendix F, Section II, Item 3)
General Safety Requirements:
Equipment Condition:
Fuel transfer pump removed from pump-engine
WARNING
module. (para. 4.12.1)
Fuels are toxic and flammable. Do not get on person
Shaft nut and shaft seal assembly removed.
or clothing. Work in well ventilated area. Do not
(para. 5.4.2)
smoke. Ensure equipment is well grounded.
Vane pump housing removed. (para. 5.4.3)
a.
Removal.
(1)
Remove rotary shaft seal housing and components. Refer to paragraph 5.4.2.
(2)
Remove rotary vane pump housing. Refer to paragraph 5.4.3.
(3)
Remove the four socket head screws (1), lock washers (2) and flat washers (3) that secure the rot ary vane
pump to the impeller housing (4). Discard lock washers (2).
b.
Repair.
(1)
Lift off the vane pump clamp plate (5) and outer side plate (6), and inspect pump for physical damage
(nicks, burrs, scratches, etc.). Replace any component that has physical damage exceeding minor
scratching.
(2)
Observe length of vanes (7); each vane should be long enough to be easily retained in rotor (8) at farthest
extension. Replace vanes if excessively worn.
(3)
Remove vane pump components (7, 8, 10 and 14) as required for inspection. Be careful to retrieve rotor
key (9) when removing rotor. Replace any component that has physical damage exceeding minor
scratching.
5-15
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