Ismantling The Piston And Cylinder - Husqvarna 545 Workshop Manual

Repair Instructions
7.22 Dismantling the piston and cylinder
1
ismantle
• The cylinder cover
• The carburettor (see
carburettor )
• The muffler
• The vibration element
• The spark plug cap
• The intake system
2
Unscrew the cylinder s four screws
and carefully lift away the cylinder and the gasket.
See figure 60.
NOTE!
Take care to prevent any dirt and foreign
particles from entering the crankcase.
3
Cover over the crankcase opening.
4
Remove the circlips for the gudgeon pin and press
out the gudgeon pin. The lift off the piston. See
figure 61.
5
Remove the gudgeon pin bearing (the needle
bearing) using a pliers. See figure 61. Replace with
a new bearing.
Cleaning and inspection of the cylinder
Clean all components, scrape off all gasket re-
mains and soot from the following areas
• The piston crown
• The top of the cylinder bore (inside)
• The cylinder e haust port
• The base of the cylinder and or crankcase
54
- English
ismantling the
Fig 60
Fig 61