TM 10-4930-351-14
0074 00
PUMP DISASSEMBLY AND INSPECTION-Continued
NOTE
Carefully examine shaft seal assembly for signs of fluid leakage at the shaft weep hole. Note
arrangement of components of the shaft seal assembly.
6.
Remove snap ring (8) that secures shaft seal assembly (7) to armature shaft.
7.
Remove shaft seal assembly (7), noting position of assembly components. Discard shaft seal assembly (7).
8.
Inspect pump cavity for damage and foreign material. Clean cavity as required. Replace pump housing (9) if cavity wall
is damaged.
9.
Remove bypass valve cap (10). Inspect bypass valve cap gasket (11), replace if damaged.
10. Remove bypass spring (12) and bypass valve (13). Inspect bypass valve (13) seat for damage or deterioration. Replace
bypass valve (13) if damaged or worn.
11. Clean bypass valve cavity of pump housing (9).
12. Remove the four bolts (14) that attach inlet flange (15) to pump housing (9).
13. Remove and discard inlet flange gasket (16).
14. Remove and clean inlet screen (17).
PUMP ASSEMBLY
WARNING
Rubber gloves should be worn when handling fueling system components due to the toxic
effects of some fuel additives.
1.
Position inlet flange gasket (16) on pump housing (9).
2.
Position inlet screen (17) on pump housing (9).
3.
Install inlet flange (15) on pump housing (9) using the four bolts (14).
4.
Install bypass valve (13) in pump housing (9).
5.
Install bypass spring (12) in pump housing (9).
6.
Install bypass valve cap gasket (11) on bypass valve cap (10).
7.
Install bypass valve cap (10) in pump housing (9).
CAUTION
Do not allow components of the shaft seal assembly or the snap ring to drop into pump
cavity as components are installed.
8.
Install shaft seal assembly (7) components on armature shaft in order of removal.
0074 00-2
