Safe Condition; Guide Bar; Saw Chain - Stihl HTA 50.0 Manual De Instrucciones

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► Keep bystanders, children and animals
away from the work area.
► Do not leave the battery unattended.
► Make sure that children cannot play with
the battery.
■ The battery is not protected against all ambi‐
ent conditions. If the battery is exposed to cer‐
tain ambient conditions, the battery may catch
fire, explode or be irreparably damaged. This
may result in serious injury to people and
damage to property.
► Protect battery from heat and fire.
► Do not throw the battery into a fire.
► Use and store the battery at temper‐
atures between ‑ 10 °C and + 50 °C.
► Protect the battery from rain and
moisture and do not immerse it in liq‐
uids.
► Keep battery away from small metal parts.
► Do not expose the battery to high pressure.
► Do not expose the battery to microwaves.
► Protect the battery from chemicals and
salts.
4.6

Safe Condition

4.6.1 Pole Pruner
The pole pruner is in a safe condition if the fol‐
lowing points are observed:
– The pole pruner is not damaged.
– The pole pruner is in a clean condition.
– The controls function properly and have not
been modified.
– The chain lubrication is operating properly.
– Wear marks on the chain sprocket are not
deeper than 0.5 mm.
– A combination of guide bar and saw chain rec‐
ommended in this User Manual is mounted.
– The guide bar and saw chain are properly
mounted.
– The saw chain is properly tensioned.
– Only original STIHL accessories designed for
this pole pruner model are fitted.
– The accessories are correctly attached.
– The oil tank cap is closed.
WARNING
■ If not in safe condition, components may no
longer operate correctly and safety devices
may be disabled. This may result in serious or
fatal injury to people.
► Work only with an undamaged pole pruner.
30
► 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 Man‐
ual.
► 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.
► Close the oil tank cap.
► 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 follow‐
ing 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.
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 mini‐
mum 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 follow‐
ing points are observed:
– Chain is not damaged.
– Chain is properly sharpened.
– The service marks on the cutters are still visi‐
ble.
WARNING
■ If components do not comply with safety
requirements, they will no longer function
4 Safety Precautions
0458-813-9821-A