Shim Selection - TOHATSU BFT250A Service Manual

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GEAR CASE (COUNTER ROTATION)

SHIM SELECTION

SHIM POSITION
• Use shims to adjust the position of each gear so that
they engage properly. Perform shim adjustment if
the backlash of a gear is outside the specification or
after replacing the gear case, vertical shaft, or
bearing with a new one.
TAPER BEARING (32 x 66 x 49 mm)
PINION GEAR SHIM
PINION GEAR
FORWARD BEVEL GEAR
NEEDLE BEARING (58 x 85 x 25 mm)
PROPELLER SHAFT
17-34
VERTICAL SHAFT
FLANGE
INTERNAL
CIRCLIP
Sf (SHIM THICKNESS)
C: 214.5 ± 0.15 mm
H
Sr (SHIM THICKNESS)
B: 72.5 ± 0.15 mm
FORWARD BEVEL
GEAR SHIM
GEAR CASE
REVERSE BEVEL
GEAR SHIM
BALL BEARING
(55 x 100 x 21 mm)
REVERSE BEVEL GEAR