Using The Chain Saw - Stihl MS 462 C-M Instruction Manual

English
￭ If your fuel cap still does not tighten properly, it may be
damaged or broken. Stop using the unit and take it to your
authorized STIHL dealer for repair.
Vapor Lock
WARNING
￭ Vapor lock occurs when fuel in the fuel line or carburetor
vaporizes, causing bubbles to block the free flow of liquid
fuel into the carburetor.
￭ Vapor lock cannot be relieved or affected by opening the
fuel tank. Removing the fuel filler cap without first allowing
the chain saw to cool adequately can result in fuel
spraying. Always follow the instructions in this section
when removing the fuel cap.
￭ To relieve vapor lock:
– Place the Master Control Lever in the start
position and try to start the chain saw, @ 14.
– If your chain saw will not restart, or if vapor lock
occurs again, the chain saw is being used in
conditions too extreme for the fuel being used.
Discontinue use and let the engine cool completely
before attempting to start the chain saw.
– Using good quality, fresh fuel (stored less than 30
days) also can help reduce the occurrence of vapor
lock.
12
5 IMPORTANT SAFETY INSTRUCTIONS
5.6

Using the Chain Saw

5.6.1 Before Operation
WARNING
￭ Misuse or unauthorized use may result in personal injury
and property damage.
– Use the chain saw only as described in this
instruction manual.
￭ For proper assembly of the bar and chain:
– Read and follow the instructions on mounting the
guide bar and chain, @ 10.2.1.
￭ The chain, guide bar and sprocket must match each other
in gauge and pitch. Before mounting or replacing:
– Read the information on guide bar and chain
combinations, @ 26.
– Read and follow the instructions on kickback and
other reactive forces, @ 6.
– Select the shortest bar that will meet your cutting
needs. Longer bars add weight and may be more
difficult to control.
￭ Proper tension of the chain is extremely important to
maximize cutting performance and reduce the risk of
personal injury from chain breakage, derailment or
reactive forces:
– Read and follow the chain tensioning instructions,
@ 10.3.
– Always make sure the chain sprocket cover is
tightened securely after tensioning the chain in order
to secure the bar. Never start the chain saw with the
chain sprocket cover loose or missing.
– Check chain tension once more after tightening the
chain sprocket cover.
– After adjusting the chain, let the motor run for a
minute or two, then shut off the engine, engage the
chain brake and recheck chain tension.
– Check chain tension periodically thereafter at
regular intervals (only after engaging the chain brake
and shutting off the engine).
0458-790-8221-A