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16
ENGINE
16.4.32 Checking shift mechanism
0 0 A
A
1
0 0 1
0 0 4
4
D
0 0 D
0 0 1
1
6
0 0 6
0 0 E
E
0 0 C
C
0 0 3
3
0 0 B
B
F
0 0 F
16.4.33 Preassembling shift shaft
5
5
2
2
4
4
–
Check the shift forks
»
1
0 0 1
–
Check shift grooves
»
4
0 0 4
–
Check the seat of the shift drum in the bearings
0 0 5
5
»
–
Check bearing
»
2
0 0 2
–
Check the needle bushing
»
0 0 3
3
–
Check the shift rail
»
300120-01
–
Check the shift rail for scoring, signs of corrosion and stiffness in the shift forks.
»
–
Check sliding plate
»
–
Check return surface
»
–
Check guide pin
»
–
Preassemble the shift shaft. (
–
Check the clearance
Shift shaft - play in sliding plate/shift
quadrant
»
0 0 0
300122-01
–
Fix the short end of the shift shaft in a vise.
Guideline
Use soft jaws.
0 0 1
1
–
Mount sliding plate
3
3
the shift quadrant.
–
Mount preload spring
–
Push on spring guide
6
6
end facing upward and lift the offset end over abutment bolt
300154-01
–
Mount stop disk
(see
1
A
If there is damage or wear:
–
Change the shift fork and gear wheel pair.
of shift drum
B
If the shift groove is worn:
–
Change the shift roller.
If the shift roller is not seated correctly:
–
Replace the shift drum and/or the bearing.
for stiffness and wear.
3
If the bearings do not move freely or are worn:
–
Replace the bearings.
for stiffness and wear.
4
If the needle bushing does not move freely or is worn:
–
Replace the needle bushing.
on a flat surface for run-out.
5
If there is run-out:
–
Change the shift rail.
If there is scoring or corrosion, or if the shift fork is stiff:
–
Change the shift rail.
in contact areas
6
If the sliding plate is worn:
–
Change the sliding plate.
on the sliding plate for wear.
D
If deep notches are present:
–
Change the sliding plate.
for looseness and wear.
E
If the guide pin is loose and/or worn:
–
Change the sliding plate.
between the sliding plate and the shift quadrant.
F
If the measured value does not equal the specified value:
–
Change the sliding plate.
with the guide pin facing down and attach the guide pin to
1
.
2
, push return spring
3
.
6
) for damage and wear (visual check).
for wear.
2
.
3
for wear.
C
p. 137)
0.40... 0.80 mm (0.0157...
0.0315 in)
over the spring guide with the offset
4
137
.
5
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