Guide Bar; Saw Chain - Stihl GTA 26 Manual De Instrucciones

English
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► Check the chain sprocket cover for wear marks.
► If the wear marks are deeper than a = 0.020 in. (0.5 mm),
have the chain sprocket replaced.
STIHL recommends using genuine STIHL chain sprockets.
Alternating between two chains helps reduce wear to the
chain sprocket.

22.3 Guide Bar

► Switch off the garden pruner and remove the battery.
► Remove the guide bar and saw chain, @ 13.2.1.
► Measure the depth of the guide bar groove in the area with
the greatest wear using the measuring tool on the file
gauge (special accessory, not included).
► Replace the guide bar if the measured depth is less than
the required minimum depths stated in @ 24.3.
34
► Check the spread of the guide bar groove with the
measuring tool on the file gauge.
► Replace the guide bar if the groove is narrowed, spread or
shows other signs of substantial wear or damage.

22.4 Saw Chain

WARNING
An improperly sharpened chain can increase the risk of
reactive forces, resulting in severe personal injury or death.
Always review and follow the sharpening angles and
dimensions recommended by STIHL when checking or
sharpening the chain.
WARNING
Never use a dull or damaged chain. This leads to increased
physical strain, increased vibration load, unsatisfactory
cutting results and increased wear. If the chips from cutting
are fine, more like saw dust than wood chips, the chain likely
is dull.
► Switch off the garden pruner and remove the battery.
2
► Check the height of the depth gauge (1) with a STIHL file
gauge (2) matching the pitch of the chain.
► If the depth gauge protrudes higher than the file gauge,
file the depth gauge to the appropriate height.
► Work carefully. Do not file the depth gauge too low. A
depth gauge that is too low must be replaced or
sharpened by an authorized STIHL servicing dealer.
22 Inspection and Maintenance
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0458-694-8621-A