Stihl BT 45 - Using the Unit

13BT 45
Troubleshooting - b 4.1
Removing
– Remove the gearbox - b 9.1
– Inspect the clutch drum. There
should be no scores or signs of
excessive wear.
: If there are noticeable wear
marks on the inside diameter of
the clutch drum (1), check its wall
thickness. If it is less than about
VA
148RA101
80%
100%
1
!
80% of the original thickness, fit a
new clutch drum.
: It is necessary to disassemble
the gearbox (b 9.2) to replace
the clutch drum (1).
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VA
1
– Unscrew the spark plug.
: Use the locking strip (1)
4221 893 5903 to block the
piston.
: Unscrew the clutch (2).
VA
932RA152
2
1
Note that clutch carrier has a left-
hand thread.
: If necessary, remove the
washer (1).
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1
VA
Disassembling
: Use special hook (2)
5910 890 2800 to detach the
clutch springs (1).
VA
932RA153
2
1
1
1
: Take the clutch shoes off the
carrier and clean the individual
parts - b 11
– Replace any damaged parts.
VA
932RA154
5.2 Clutch