STIHL 020 T - Arbtalk
STIHL 020 T - Arbtalk
STIHL 020 T - Arbtalk
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
• Apply the installing tool to the<br />
piston boss, hold the piston steady,<br />
center the tool shank exactly and<br />
press home until the snap ring slips<br />
into the groove.<br />
• Position the piston rings so that<br />
the radii at the ring gap meet at the<br />
fixing pin in the piston groove when<br />
the rings are compressed.<br />
Note: Fit the snap ring so that its<br />
gap is on the piston's vertical axis (it<br />
must point either up or down).<br />
• Push the manifold onto the<br />
intake port. Make sure that the<br />
straight faces (see arrows) on<br />
the manifold and port line up.<br />
• Lubricate the inside of the<br />
cylinder with oil and line it up<br />
so that it is positioned as it will<br />
be in the installed condition. It is<br />
essential to observe this point as<br />
the piston rings might otherwise<br />
break.<br />
• Slide the cylinder over the piston<br />
- the clamping strap is pushed<br />
downward as the piston rings slip<br />
into the cylinder.<br />
• Remove clamping strap and<br />
wooden assembly block.<br />
• Carefully line up the cylinder<br />
gasket.<br />
• Fit new cylinder gasket.<br />
• Lubricate piston and piston rings<br />
with oil. Rest the piston (1) on the<br />
wooden assembly block (2).<br />
• Use the clamping strap (1) to<br />
compress the piston rings<br />
around the piston.<br />
• Check that piston rings are<br />
correctly positioned.<br />
• Fit cylinder base screws and<br />
tighten them alternately to<br />
11.5 Nm (8.5 Ibf.ft) in a diagonal<br />
pattern.<br />
• Fit the fuel tank - see 10.6.<br />
<strong>STIHL</strong> <strong>020</strong> T 22