Cleaning And Inspection - Husqvarna 545RXT AT Workshop Manual

Cylinder and piston
7. Use a long-nosed pliers to remove the G circlip from
the gudgeon pin. Keep your thumb over the circlip to
prevent it from flying out. See figure 4.
8. Push the gudgeon pin from the piston using a punch
See Service tools, pos. 17.

14.2 Cleaning and inspection

CAUTION! The soft aluminium parts can
get damaged. Remove carefully with a tool
that is not too sharp when removing carbon
deposits.
See figure 6.
After dismantling, clean the individual components:
• Remove carbon deposits from the top of the piston,
the combustion chamber of the cylinder and the
exhaust and transfer ports port of the cylinder.
• Clean all the components.
Examine the different components for damage and wear:
• Inspect the piston and cylinder for seizure damage
and wear. Also see "14.5 Analysis and actions" on
page 61
• Inspect the piston ring for wear and damage. Also
see the "Analysis and actions" section.
• Inspect the gudgeon pin. If it has blued, it must be
replaced. If the piston moves too easily, replace both
the piston and the gudgeon pin.
• Inspect the needle bearing. Replace If it is
discoloured or damaged.
• Inspect the circlips. Replace if they have cracks or
are discoloured.
58 – English
Fig. 4
Fig. 5
Fig. 5