Husqvarna TrioBrake 550XPG - Assembly of Sealing Rings

English - 67
Repair Instructions
Fig 80
Fig 81
85
Assemble the following parts:
A. Tank unit.
B. Piston and cylinder.
C. Muer.
D. Carburettor.
E. Centrifugal clutch.
F. Electrical System.
G. Starter.
H. Bar and chain. See the Operator’s Manual.
7.27 Assembly of sealing rings
1
To replace the crankshaft’s sealing rings, rst dis-
mantle the following parts:
On the ywheel side:
• Starter.
• Flywheel.
On the clutch side:
• Bar and chain.
• Chain guide plate.
• Centrifugal clutch.
• Oil pump.
2
Use a screwdriver to remove the sealing ring and
pull it out.
3
Applyl 2-stroke oil on the sealing lip before assem-
bly.
4
Slide the dowel 575 34 69-01 (gure 80) on the
crankcase pin. Knock the new sealing ring in place
using the 575 34 70-01 tool. See Figure 81.
NOTE! Excessively hard impact can move the
bearing.
5
Fit the parts as outlined in point 1 above.