TM 9-4910-663-34
h.
Removal and Replacement of Spring Assembly (fig 3-5).
(1)
Remove the adjustable driven varidisc assembly. Refer to paragraph 3-19g.
(2)
Slide spring assembly (97) off input shaft (98).
(3)
Reverse the procedures of steps (1) and (2) to install the replacement spring assembly.
i.
Removal and Replacement of Input Shaft Front Bearing (fig 3-5).
(1)
Remove the gearcase gear sets. Refer to paragraph 3-19d.
(2)
Remove the spring assembly. Refer to paragraph 3-19h.
(3)
Remove three screws (85) that attach bearing cap (120).
(4)
Pull or tap input shaft (98) toward the rear, and remove it through the rear side of frame (59).
(5)
Remove locknut (93) and lockwasher (92) from input shaft (98) and press ball bearing (117) off the front
end of input shaft (98).
(6)
Reverse the procedures of steps (1) through (5) to install the replacement input shaft rear bearing. Reseal
bearing cap (120) with gasket compound.
j.
Removal and Replacement of Stationary Motor Varidisc Assembly (fig 3-5).
(1)
Remove the varidrive assembly from the test stand. Refer to paragraph 2-19.
(2)
Remove six hex head screws (51) and lockwashers (52) from each side plate cover (50) and remove both
side plate covers from frame (59).
(3)
Remove four hex head screws (54) and lockwashers (55) from front plate cover (53) and remove the front
plate cover.
(4)
Mark carefully the axial and radial position of stationary motor varidisc assembly (48) in relation to the
motor shaft. (See fig 3-4.)
(5)
Loosen the four clamping screws on the split hub of stationary motor varidisc assembly (48) and slide the
stationary motor varidisc assembly off the motor shaft and remove it from the frame.
(6)
Reverse the procedures of steps (1) through (5) to install the replacement stationary motor varidisc
assembly. Make certain that the stationary motor varidisc assembly is positioned exactly as marked in step (4).
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