Clutch; Tools, Aids; Removing Clutch; Checking Clutch Drum - Stihl MS 500i Service Manual

11 Clutch

11.1

Tools, aids

Screwdriver - 0000 890 2300
–
Locking strip - 0000 893 5904
–
Torque wrench – 5910 890 0312 or equivalent tool
–
Screwdriver T27x200 – 5910 890 2415 or equivalent
–
tool
Assembly hook - 5910 890 2800
–
Socket DIN3124-S19x12.5L – 5910 893 5613 or
–
equivalent tool
Flex ratchet wrench
–
11.2

Removing Clutch

Prepare for repair, @ 3.1.
N
Release chain brake.
N
Remove chain sprocket cover.
N
Remove circlip (1).
N
Remove washer (2).
N
Remove rim sprocket (3).
N
Remove clutch drum (4).
N
Remove needle cage (5).
N
Remove shroud.
N
Remove the spark plug.
N
MS 500i
7
6
M12x1 LH
(50 Nm / 37 lbf. ft.)
Slide locking strip 0000 893 5904 through the spark
N
plug hole and hold.
Turn clutch (6) as far as possible clockwise by hand.
N
The piston is blocked.
Unscrew clutch (6) clockwise.
N
Pull locking strip 0000 893 5904 out of the spark plug
N
hole.
Remove the washer (7).
N
11.3
Remove the clutch drum, @ 11.2.
N
Examine the clutch drum (4) for signs of wear.
N
If distinct wear marks are visible on the inner diameter of
the clutch drum (4):
Measure wall thickness a.
N
8
9
10
11
4
5
3
2

Checking clutch drum

4
100%
b
a
1
15