TOHATSU BFT250A Service Manual page 488

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GEAR CASE (STANDARD ROTATION)
ASSEMBLY
Set the pinion gear [1] on the vertical shaft [2], and
loosely tighten the pinion gear nut [3] by hand.
Apply gear oil to the inner surface of the taper roller
bearing inner races, rollers, and the inner surface of the
outer race. Assemble the inner races and the outer
race.
Install the shim [4] and the taper roller bearing [5] on the
vertical shaft.
• When the gear case, vertical shaft, pinion gear, or
taper roller bearing is replaced with a new one,
perform the shim adjustment and select the
appropriate shim accordingly (page 16-35).
• Set the taper roller bearing with the side on which
the "E" dimension was measured during shim
adjustment toward the pinion gear.
Apply gear oil to the taper roller bearing insertion part of
the vertical shaft [1].
Set the vertical shaft on the hydraulic press with the
pinion gear [2] side facing up as shown.
Install the taper roller bearing (32 x 66 x 49 mm) [3] on
the vertical shaft using the hydraulic press.
• Check that the taper roller bearing inner race is set
on the hydraulic press table securely.
• Do not damage the threads at the end of the vertical
shaft (pinion gear nut [4] installation part).
After installation, turn the outer race ten to twenty turns
and check that the bearing turns smoothly.
Remove the pinion gear nut and the pinion gear from
the vertical shaft.
Install the oil slinger [1] on the vertical shaft [2] by
aligning the projection [3] on the inside of the oil slinger
with the recess [4] on the pinion gear installation side of
the vertical shaft.
16-34
[2]
[1]
[3]
[2]
[4] [1]
[5]
[4]
[1]
[3]
[4]
[2]
[3]