Aligning The Middle Gear - Yamaha Grizzly550 User Manual

e. If the gear lash is incorrect, adjust the gear
lash by middle driven pinion gear shims
and/or middle drive pinion gear shim(s).
L LLL L LLL L L LLL L L LLL L
EAS25930

ALIGNING THE MIDDLE GEAR

TIP
Aligning the middle gear is necessary when any
of the following parts are replaced:
• Crankcase
• Middle drive gear
• Middle driven gear
• Middle driven shaft bearing housing
1. Select:
• Middle drive pinion gear shim(s) "1"
• Middle driven pinion gear shim(s) "2"
"A"
1
A. Middle drive pinion gear shim thickness
B. Middle driven pinion gear shim thickness
L LLL L L LLL L LLL
2
"B"
5-87
M MMM M MMM M M MMM M M MMM M
a. Position the middle gears with the appropri-
ate shim(s) that has had its respective thick-
ness calculated from information marked on
the crankcase, middle driven shaft bearing
housing and middle driven pinion gear.
b. To find middle drive pinion gear shim thick-
ness "A", use the following formula.
Middle drive pinion gear shim thickness
"A" = "e" + "d" - "b" - "c" - "a"
"a" = a numeral (usually a decimal number)
on the bearing housing is either added to or
subtracted from "0.6"
"b" = 17.0
"c" = 55.0
"d" = a numeral (usually a decimal number)
on the right crankcase specifies a thickness
of "65.0"
"e" = a numeral (usually a decimal number)
on the left crankcase specifies a thickness of
"9.0"
Example:
If the bearing housing is marked "-02",
"a" is 0.58
a
"b" is 17.0
"c" is 55.0
If the right crankcase is marked "64.97",
"d" is 64.97
If the left crankcase is marked "9.01",
"e" is 9.01
MIDDLE GEAR
M MMM M M MMM M MMM
d