HENX 7063704, Руководство по эксплуатации

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English
34
NOTICE: If chain is too tight, it will not
rotate. Loosen the side cover knob slightly
and turn the tensioning knob once from
right to left. Lift the tip of the guide bar up
and retighten the side cover knob securely.
Assure that the chain will rotate without
binding.
18.5
Adjusting The Chain Tension
a. Stop the motor and remove the battery
pack before adjusting the chain tension.
b. Loosen the side cover knob.
c. Turn the chain-tensioning knob
clockwise to tension the chain. See the
section: “Replacing the bar and chain” in
this manual for additional information.
• A cold chain is correctly tensioned when
there is no slack on the underside of the
guide bar and the chain is snug, but it can
be turned by hand without binding. The
chain must be re-tensioned whenever the
flats on the drive links do not sit in the
bar groove.
• During normal saw operation, the
temperature of the chain will increase.
The drive links of a correctly tensioned
warm chain will hang approximately
• 0.04 in. (1.1 mm) out of the bar groove
(See Fig. AD ).
NOTICE: New chains tend to stretch; check
chain tension frequently and tension as
required.
NOTICE: A chain tensioned while it is warm
may be too tight upon cooling. Check the
cold tension before next use.
18.6
Chain maintenance
WARNING: Remove the battery pack before
performing any maintenance; failure to heed
this warning could result in serious personal
injury.
WARNING: Always wear gloves when
handling the saw chain; these components
are sharp and may contain burrs.
Use only low-kickback chains on this saw.
This fast cutting chain will provide kickback
reduction when properly maintained.
A properly sharpened saw chain cuts
through wood effortlessly, even with very
little pressure.
Never use a dull or damaged saw chain.
A dull saw chain cutter leads to increased
physical strain, increased vibration load,
unsatisfactory cutting results and increased
wear.
For smooth and fast cutting, the chain
needs to be maintained properly. The
chain requires sharpening when the wood
chips are small and powdery, the chain
must be forced through the wood during
cutting, or the chain cuts to one side. During
maintenance of your chain, consider the
following:
• Improper filing angle of the side plate can
increase the risk of a severe kickback.
• Raker (depth gauge) clearance. Too low
increases the potential for kickback. Not
low enough decreases cutting ability.
• If cutter teeth have hit hard objects,
such as nails and stones, or have been
abraded by mud or sand on the wood,
have the chain sharpened by a qualified
service technician.
NOTICE: Inspect the drive sprocket for
wear or damage when replacing the chain.
If signs of wear or damage are present in
the areas indicated, have the drive sprocket
replaced by qualified service technician.
18.7
How To Sharpen The Cutters
Be careful to file all cutters (See Fig. AE ) to
the specified angles and to the same length,
as fast cutting can be obtained only when
all cutters are uniform.
a. Remove the battery pack. Wear gloves
for protection.
b. Properly tension the chain prior to
sharpening. Refer to the section:
“Adjusting the chain tension” earlier in
this manual.
c. Use a 0.177” (4.5 mm) diameter round
file and holder (available separately). Do
all of your filing at the middle position of
the guidebar.
d. Keep the file level with the top plate of
the tooth. Do not let the file dip or rock.
e. Keep a correct sharpening angle of
30° between the file and the saw
chain (See Fig. AF & AG ). Always
use a file holder(available separately)
when sharpening saw chains by hand.