Stihl HTA 66 Instruction Manual page 52

English
WARNING
￭ If not in safe condition, components may no longer
operate correctly, safety devices may be disabled and fuel
leakage may occur. This may result in serous or fatal
injury to people.
► Work only with an undamaged pole pruner.
► Close the oil tank cap.
► If the pole pruner is dirty: Clean the pole pruner.
► Do not modify the pole pruner. Exception: Mounting a
combination of guide bar and saw chain recommended
in this User Manual.
► If the controls do not function properly: Do not use the
pole pruner.
► Only fit original STIHL accessories designed for this
pole pruner model.
► Mount the guide bar and saw chain as described in this
User Manual.
► Attach accessories as described in this User Manual or
in the User Manual for the accessories.
► Never insert objects in the openings of the pole pruner.
► Replace worn or damaged labels.
► If you have any doubts, be sure to consult a STIHL
dealer.
4.6.2 Guide Bar
The guide bar is in a safe condition if the following points are
observed:
– Guide bar is not damaged.
– Guide bar is not deformed.
– The minimum groove depth is maintained, @ 19.3.
– Bar rails are free from burrs.
– Bar groove is not pinched or splayed.
50
WARNING
￭ If the guide bar is not in a safe condition, it can no longer
support and guide the saw chain properly. The rotating
saw chain can jump off the guide bar. This can result in
serious or fatal injuries.
► Work only with an undamaged guide bar.
► If the groove depth is less than the minimum depth:
Mount a new guide bar.
► Deburr the guide bar every week.
► If you have any queries: Contact your STIHL servicing
dealer.
4.6.3 Saw Chain
The saw chain is in a safe condition if the following points
are observed:
– Chain is not damaged.
– Chain is properly sharpened.
– The service marks on the cutters are still visible.
WARNING
￭ If components do not comply with safety requirements,
they will no longer function properly and safety devices
may be rendered inoperative. This can result in serious or
fatal injuries.
► Work only with an undamaged saw chain.
► Sharpen the chain properly.
► If you have any queries: Contact your STIHL servicing
dealer for assistance.
4.6.4 Battery
The battery is in safe condition when the following conditions
are met:
– The battery is not damaged.
– The battery is clean and dry.
– The battery is working and has not been modified.
4 Safety Precautions
0458-191-9621-A