13.2.4
Replace the saw chain (17) and
allow it to run in (Fig. 2, 3)
DANGER
Serious injuries possible due to tearing or
jumping off of the sawtooth!
–
Never fit a new saw chain on a worn sprocket or
on a damaged or worn guide rail. The saw chain
could jump off or break.
• Only use saw chains and blades designed for this
product.
• Before changing the saw chain, clean the groove of
the guide bar, as the saw chain may jump out of the
bar if it dirty. The deposits can also soak up the
chain oil. The consequence would be that the chain
oil does not reach the underside of the guide bar, or
only to a small extent, and lubrication is reduced.
1. Turn the screw (18) for the chain tensioning system
anti-clockwise to slacken the chain tension and re-
move the chain cover (21).
2. Remove the guide bar (16) and the saw chain (17).
3. Fit the chainsaw guide bar (16) and saw chain (17)
again as described under 8.1.
Note:
With a new saw chain, the tensioning force decreases
after some time. Therefore, you must retension the saw
chain after the first 5 cuts, or after 10 minutes of sawing
at the latest.
13.2.5
Sharpening the saw chain (17)
WARNING
Increased risk of accidents due to an incor-
rectly sharpened saw chain!
Deviations from the dimensions of the cutting edge
geometry during sharpening increase the risk of kick-
back of the product.
–
Have the saw chain sharpened by a professional.
The saw chain can be resharpened at an authorised
specialist workshop. Do not attempt to sharpen the saw
chain yourself if you do not have a suitable tool and the
necessary experience.
CAUTION
Special tools are required to sharpen the chain; these
ensure that the cutting tools are sharpened at the cor-
rect angle and to the correct depth.
All cutting links must have the same width and length
after sharpening.
Notes:
A sharp saw chain ensures optimum cutting perfor-
mance. It effortlessly eats through the wood, leaving
behind large, long wood chips.
A saw chain is blunt if you have to push the cutting
equipment through the wood and the wood chips are
very small. With a very blunt saw chain, no chips are
produced at all, only wood dust.
13.2.5.1
Only use files specifically for saw chains!
Other files have the wrong shape and the wrong edge.
Select the diameter of the file according to your chain
pitch. Be sure to also note the following angles when
sharpening the cutting links.
Saw
chain
type
21PBX
Furthermore, the angle must be maintained for all cut-
ting links.
If the angles are uneven, the saw chain (15) will run er-
ratically, wear out quickly and break prematurely.
Since these requirements can only be met with suffi-
cient and regular practice:
• Use a file holder.
• A file holder must be used when sharpening the
saw chain (15) by hand. The correct filing angles
are marked on it.
www.scheppach.com
Instructions for sharpening the
chainsaw
File di-
Top an-
Bottom
ameter
gle
angle
Clamp-
Clamp-
ing ro-
ing tilt
tation
angle
angle
ap-
30°
10°
prox.
4.8
mm
Depth stop
Top tilt
Stan-
angle
dard
(55°)
depth
gauge
Side
angle
85°
0.64
mm
File
GB | 43