|
| |
TM 10-4320-342-24
3-19. PUMP AND CLUTCH (600 GPM FUEL PUMP) REPAIR - continued.
Refer to Figure 3-14.
(13)
Inspect rotor assembly (5) for wear, glazed friction surfaces and corrosion.
(14)
Inspect field clutch (8) for damaged insulation, exposed windings and damaged terminal studs.
(15)
Inspect field retainer and bearing plates (8 and 14) for cracks, corrosion and excessive wear.
(16)
Inspect clutch housing (10) for cracks, corrosion and worn or damaged bearing seats.
(17)
Inspect all attaching hardware (bolts, nuts and inserts) for stripped threads, cracks or burrs.
c. ASSEMBLY. Refer to Figure 3-15.
(1)
Use formula A - B - C = D to determine thickness of shim stack number one.
(a)
Measure thickness of bearing spacer (2) to determine dimension A.
(b)
Measure the inner lip (3) on clutch housing (4) to determine dimension B and subtract from dimension A.
(c)
Subtract dimension C (0.050 inch) from dimension A.
(d)
Dimension D is the required thickness of shim stack number one (1) based on the above.
(e)
Example of formula: 0.400 - 0.285 - 0.050 = 0.067
(2)
Select shim stack number one (1).
NOTE
One or more shims may be used to obtain dimension D above. Shim is made up of
laminated layers and thickness of each layer is 0.002.
(a)
Select appropriate number of shims (1) to obtain dimension D above.
(b)
If necessary, peel appropriate number of laminated layers (5) from shim to achieve dimension D above.
(3)
Install outer bearing (6) in clutch housing (4).
(4)
Install bearing retainer (7) with bolts (8) on clutch housing (4).
(5)
Press rotor shaft (9) through outer bearing (6) until fully seated in clutch housing (4).
3-39
|
