Dismantling The Centrifugal Clutch - Husqvarna TrioBrake 550XPG Workshop Manual

Repair Instructions

7.8 Dismantling the centrifugal clutch

1
Remove the cylinder cover. Release the brake by
moving the kickback guard backwards. Loosen the
bar nuts and remove the clutch cover, chain and
bar. See figure 14.
2
Loosen the spark plug hat and remove the
spark plug, and insert the plastic piston stop
(575 29 36-01). See figure 15.
3
Loosen the clutch using tool 502 54 16-02 and a
suitable socket wrench or combination spanner.
Turn the clutch clockwise to loosen it. See
figure 15.
4
Secure the clutch in a vice as shown in figure 16.
Carefully remove the clutch springs. Remove the
clutch shoe springs from the side that does not
have text.
NOTE!
Be careful with the clutch springs, as
opening them too much can result in
material damage.
Cleaning and inspection
• Clean and check all parts carefully. Parts must
be replaced if cracked or showing signs of
other defects. Always use original spare parts.
• Check the thickness of the clutch shoes by meas-
uring them with slide callipers across the whole
clutch hub. If the thickness is below 65 mm, the
clutch must be replaced. See figure 16.
34
- English
Fig 14
Fig 15
Min. 65 mm
Fig 16