DRESSTA TD-25M EXTRA, Service Manual

Page: 146 / 595

SECTION 7C
TRANSMISSION
Page 28
TD-25M EXTRA DRESSTA
TRANSMISSION
Bearing Adjustment and Checking Procedure
NOTE: When placing the manifold over the shaft insure the clutch oil supply holes are aligned, if
applicable. Never exert a downward force on the manifold as this will damage to seal rings.
Support the majority of weight of the manifold during this process. Do not allow the manifold to free
fall. If the manifold does not slide fully into place without encountering resistance, lightly tap side of
manifold from side to side to align it properly.
Continue to tap and align manifold sides until the manifold drops over each seal ring. If the
manifold fails to drop easily into place, it is an indication that the seal rings may not have been
centered on the shaft and may be damaged. If damage is suspected, remove the manifold, inspect
the seal ring and repeat the procedure.
Adjust directional clutch (input) shaft, range clutch (output) shaft and countershaft end play to
0.18 – 0.28 [mm]. Lightly grease the directional clutch shaft manifold and range clutch shaft
manifold outside diameter and leave O-rings off cover and manifold. To give an excessive initial
end play condition for input shaft, when installing the input shaft manifold use an oversize shim
pack of 3.05 [mm]. For the range clutch shaft manifold use an oversize shim pack of 4.06 [mm].
With directional clutch shaft manifold and range clutch shaft manifold installed and inclusion
of oversize shim packs under the flanges and retained by two opposite bolts, tightened to 80 [Nm]
a push / pull operation should be performed to insure that bearing cups and cones are seated in
their desired locations.
Fig. 7C.43. Measuring Cover and Manifold Gap for Determining Shim Thickness
Tools required for seating cones and cups are puller bridge and 5/8” ball bearing for seating
output, input and countershaft bearings in pushing operation.
DIRECTIONAL CLUTCH SHAFT (INPUT SHAFT)
A. Input (Push) Seating Cups in Cover and Housing and Rear Cone on Directional Clutch
(Input) Shaft (Refer to Fig. 7C.44)
NOTE: Directional shaft assembly must have its bearing cones pressed solidly against its
respective shoulder before end play (float) is adjusted.