Yamaha T-60 Service Manual download pdf (Page 112)

6-19

LOWR

SHIM SELECTION (FOR USA AND CANADA)

Forward gear shim

NOTE:

Find forward gear shim thickness (T1) by

selecting shims until the specified measure-

ment (M) with the special tool is obtained.

1. Find the specified measurement (M).

NOTE:

1. F is the deviation of the lower case

dimension from standard. It is stamped

on the trim tab mounting surface of the

lower case in 0.01 mm units. If the F

mark is missing or unreadable, assume

an F mark of “0” and check the backlash

when the unit is assembled.

2. If the F value is negative (–), then sub-

tract the F value from the measurement.

Example:

If F mark is “+5”, then

M = 1.69 + (+5)/100 mm

= 1.69 + 0.05 mm

= 1.74mm

If F mark is “–3”, then

M = 1.69 + (–3)/100 mm

= 1.69 – 0.03 mm

= 1.66 mm

2. Assemble the shimming gauge with the

forward bearing and original shim(s) as

shown in the illustration. Tighten the

nut four turns after contacting the

spring.

NOTE:

If the original shim(s) is unavailable, start

with a 0.50 mm shim.

Specified Measurement (M) =

1.69 mm + F/100 mm

Base plate:

YB-34446-1

Compression spring:

YB-34446-3

Press plate:

YB-34446-5

Gauge pin:

YB-34446-7

YB-34446-1 YB-34446-7 YB-34446-5 YB-34446-3

YU-26900-8

YU-26900-9

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Yamaha T-60 Service Manual Page 112

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