|
| |
TM 10-4320-342-24
3-19. PUMP AND CLUTCH (600 GPM FUEL PUMP) REPAIR - continued.
Refer to Figure 3-16.
(8)
Use formula E - F - G - H = I to determine thickness of shim stack number two (1).
(a)
Measure depth from top edge of clutch housing (2) to bottom of housing to determine dimension E.
(b)
Position field clutch (4) in housing (2) with winding side facing out and terminals through slots. Assemble
field retainer (3) on field clutch (4) with screws (5).
(c)
Position clutch rotor (6) on field clutch (4) and install on shaft (7). Install washer (9) and nut (10) on shaft
(9) and torque to 420 inch-pounds.
(d)
Measure distance from top edge of housing to top of clutch rotor to determine dimension F. Subtract
dimension F from dimension E.
(e)
Remove nut (10), washer (9) and clutch rotor (6) from shaft (7).
(f)
Remove screw (5), field clutch (4) and field retainer (3).
(g)
Position clutch rotor (6) on field clutch (4) and place on flat surface. Make two measurements to get an
average measurement for dimension G.
(h)
Subtract dimension H from dimension E.
(i)
Dimension I is the required thickness of shim stack number two (1) based on the above.
(j)
Example of formula: 3.120 - 1.586 - 1.450 - 0.015 = 0.069
(9)
Select shim stack number two (1).
NOTE
One or more shims may be used to obtain dimension I 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 I above.
(b)
If necessary, peel appropriate number of laminated layers (8) from shim to achieve dimension I above.
(10)
Install shim stack number two (1) and field clutch (4) with winding side facing out and terminals through slots in
housing (2).
(11)
Install field retainer (3) on field clutch (4) with screws (5).
3-41
|
