SHIMMING (FOR USA AND CANADA)
E
4. Adjust:
• Shimming-gauge-to-pinion-gear
clearance
Remove or add shim(s).
NOTE:
• (M0)-(M) should be as close to ‘0’ as
possible.
• If the specified measurement (M) is larger
than the specified value (M0), add the
shim(s).
If the specified measurement (M) is smaller
than the specified value (M0), remove the
shim(s).
SELECTING THE FORWARD GEAR
SHIMS
NOTE:
Find the forward gear shim thickness (T1) by
selecting shimsuntil the specified
measurement (M0) is obtained with the
special tool.
1. Calculate:
• Specified value (M0)
NOTE:
• “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 0.01mm units. If the “F” mark is
missing or unreadable, assume an “F”
mark of “0”, and check the backlash when
the unit is assembled.
• If the “F” value is negative (-), then subtract
the “F” value from the measurement.
Example:
If “F” mark is “+5”, then:
M0= 1.50 + (+5)/100 mm
= 1.50 + 0.05 mm
= 1.55 mm
If “F” mark is “-5”, then:
M0= 1.50 + (-5)/100 mm
= 1.50 - 0.05 mm
= 1.45 mm
2. Measure:
• Specified measurement (M)
Available shim thickness:
0.10, 0.12, 0.15, 0.18, 0.30, 0.40,
0.50 mm
Specified value (M0) =
1.50 + F/100 mm
6-33
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