SPARKY TV 3540 Notice Originale page 16

1. To sharpen the saw chain, use suitable sharp-
ening tools:
- Round chain file (4mm).
- File leading
- Chain measuring calibre.
These tools can be purchased in any specialised
store.
2. To gain well shaped chips, use sharp chain.
When the saw chain starts producing wooden
dust – it is time to sharpen the chain.
WARNING: All cutting teeth must be
similarly long. Different length of the teeth can
cause rough run of the chain or its rupture, as
well.
3. Minimum length of the teeth must be 4mm. If
they are shorter, dispose of the saw chain.
4. Angles, which the teeth are under, must be
followed.
5. To sharpen the chain basically, make 2 to 3
pulls of the file from the inside out.
WARNING: After every 3-4 sharpening
of the cutting teeth, have the saw chain sharp-
ened in any authorised service. They will sharp-
en the depth limiter as well, which provides the
distance.
The chain pitch (Fig. 21) is 9,53 mm х 1,27 mm
(3/8" LoPro x 0,50").
Sharpen the chain using protective gloves and
4mm round file (not included in the kit).
Always sharpen the cutters only with outward
strokes (Fig.22) observing the values given in
Fig. 21.
After sharpening, all cutting links must have the
same width and length.
WARNING: A sharp chain produces
well defined chips. When your chain starts to
produce wooden dust, it is time to sharpen.
After every 3-4 times the cutters have been sharp-
ened you need to check the height of the depth
gauges and, if necessary, lower them using a flat
file and template (not included in the kit), and then
round off the front corner. (Fig. 23)
WARNING: Proper adjustment of the
depth gauge is just as important as proper
sharpening of the chain.
14
EN
Guide bar
The bar should be reversed every 8 working hours
to ensure uniform wear.
Keep the bar groove and lubrication hole clean
using a bar groove cleaner (not included in the
kit). (Fig. 24)
Check the bar rails frequently for wear and, if nec-
essary, remove the burs and square-up the rails
using a flat file (not included in the kit) (Fig. 25).
WARNING: Never mount a new chain
on a worn sprocket or self-aligning ring.
Bar wear - Turn guide bar frequently at regular in-
tervals (for example, after 5 hours of use), to ensure
even wear of the bar top and bottom.
Oil passages - Oil passages on the bar should be
cleaned to ensure proper lubrication of the bar and
chain during operation.
NOTE: The condition of the oil passages can be
easily checked. If the passages are clear, the chain
will automatically give off a spray of oil within sec-
onds of starting the saw. Your saw is equipped with
an automatic oiler system.
CHAIN MAINTENANCE
Chain tension:
Check the chain tension frequently and adjust it
as often as necessary to keep the chain snug on
the bar, but loose enough to be pulled around by
hand.
Breaking-in a new saw chain:
A new chain and bar will need chain readjustment
after each 5 cuts. This is normal during the break-
in period, and the interval between future adjust-
ments will begin to lengthen quickly.
WARNING: Never have more than 3
links removed from a loop of chain. This could
cause damage to the sprocket.
Chain lubrication:
Always make sure the automatic oiler system
is working properly. Keep the oil tank filled with
SPARKY chain, bar and sprocket oil.
Adequate lubrication of the bar and chain during
cutting operations is essential to minimize friction
with the guide bar.
Never starve the bar and chain of lubricating oil.
Running the saw dry or with too little oil will de-
crease cutting efficiency, shorten saw chain life,
cause rapid dulling of chain, and lead to excessive
TV 3540 • TV 4040