18 ENGINE
242
18.5.22 Checking the shift mechanism
B04450-10
–
Check shift forks
1
on plate
A
for damage and wear (visual check).
» If there is damage or wear:
– Change the shift fork.
–
Check shift grooves
B
of shift drum
2
for wear.
» If the shift groove is worn:
– Change the shift drum.
–
Check the seat of the shift drum in bearings
3
.
» If the shift drum is not seated correctly:
– Change the shift drum and/or the bearing.
–
Check bearing
3
for stiffness and wear.
» If the bearings do not move freely or are worn:
– Change the bearings.
– Check the shift rollers for damage and wear.
» If there is damage or wear:
– Change the shift rollers.
–
Check shift rails
4
for run-out on a flat surface.
» If there is run-out:
– Change the shift rail.
– Check the shift rails for scoring, wear and smooth operation in the shift forks.
» If there is scoring or corrosion, or if the shift fork is stiff:
– Change the shift rail.
–
Check sliding plate
5
in contact areas
C
for wear.
» If the sliding plate is worn:
– Change the sliding plate.
–
Check return surface
D
on the sliding plate for wear.
» If deep notches are present:
– Change the sliding plate.
–
Check guide pin
E
for looseness and wear.