56
5
502 50 33-01
530 03 11-12
min. 1 mm
Centrifugal clutch
The centrifugal clutch has the purpose of transferring
the power between the engine and the cutting equipment.
As the name implies it works according to the centrifu-
gal principle.
This principle implies that the clutch’s friction shoes are
slung outwards towards the clutch drum at a specific
engine speed. When the friction against the drum
becomes sufficient it is driven round at the same speed
as the engine.
WARNING!
Never start or test run the engine if the clutch
cover is removed. The clutch can come loose
and cause personal injury.
There is a certain degree of slip between the
clutch and the clutch drum during acceleration,
but also in the reverse case if the cutting
equipment should stick. This avoids irregular
load alternations on the crankshaft.
The engagement speed is carefully tested so that
the engine can run at idling speed without the
cutting equipment rotating.
!
Dismantling mod. 2036/2040
Dismantle the clutch from the crankshaft.
Press the clutch apart with your thumbs
Check the wear on the clutch.
The clutch shoes must have a thickness
of at least 1 mm at the most worn point.
Dismantling mod. 2036/2040
Remove the clutch cover, chain and bar.
Fit piston stop No. 502 50 33-01 in the
plug hole.
Use tool 530 03 11-12 and unscrew the
clutch from the crankshaft.
Press out the clutch centre from the back
of the clutch with your thumbs.
Clean and inspect the different parts for
wear.
The clutch shoes must have a thickness
of at least 1 mm at the most worn point.
If they are more worn than this the
complete clutch must be replaced.