Bar / Chain Maintenance - Talon Tools AC2122F4 Guide D'utilisation

BAR / CHAIN MAINTENANCE

• GUIDE BAR MAINTENANCE
WARNING: Ensure that the power cord is
disconnected before performing any mainte-
nance on your saw.
Proper maintenance of the guide bar, as explained in
this section, is essential to keep your saw in good
working order.
SPROCKET TIP LUBRICATION:
CAUTION: Failure to lubricate the guide bar
sprocket tip as explained below will result in
poor performance and seizure, voiding the
manufacturer's warranty.
(For units supplied with sprocket tip guide bars only.)
Lubrication of the sprocket tip is recommended after each
saw use. Always thoroughly clean the guide bar sprocket
tip before lubrication.
Tool for lubrication: Talon Lube Gun (disposable)
This grease gun is designed to fit the small lubrication
point on the guide bar.
The disposable Lube Gun is packed with grease.
TO LUBRICATE SPROCKET TIP:
WARNING: Wear heavy duty work gloves
when performing this application to reduce
risk of personal injury.
1. Unplug the chain saw from the power source.
NOTE: It is not necessary to remove the saw chain to
lubricate the guide bar sprocket tip. Lubrication can be
done on the job.
2. Clean the guide bar sprocket tip.
3. Using disposable Lube gun, insert needle nose into
the lubrication hole and inject grease until it appears
at the outside edge of the sprocket tip (Fig.14).
4. Make sure that the chain brake is deactivated. Rotate
the saw chain by hand. Repeat the lubrication proce-
dure until the entire sprocket tip has been greased.
Fig. 14
• GUIDE BAR MAINTENANCE
Most guide bar problems can be prevented merely by
keeping the chain saw well maintained.
Incorrect filing and non-uniform cutter and depth gauge
settings cause most guide bar problems, primarily result-
ing in uneven bar wear. As the bar wears unevenly, the
rails widen, which may cause chain clatter and difficulty in
making straight cuts.
Insufficient guide bar lubrication and operating the saw
with a chain that is TOO TIGHT will contribute to rapid bar
wear (see Section CHAIN MAINTENANCE INSTRUC-
TIONS).
To help minimize bar wear, the following guide bar
tenance is recommended.
GUIDE BAR - The bar should be reversed every 8 work-
ing hours to ensure uniform wear.
Keep the bar groove and lubrication hole clean using the
bar groove cleaner supplied optional. (Fig. 15A)
Check the bar rails frequently for wear and, if necessary,
remove the burs and square-up the rails using the flat file.
(Fig. 15B)
WARNING: Never mount a new chain on a
worn sprocket or self-aligning ring.
Fig. 15A Fig. 15B
BAR WEAR - Turn guide bar frequently at regular intervals
(for example, after 5 hours of use), to ensure even wear
on top and bottom of bar.
BAR GROOVES - Bar grooves (or rails which support and
carry the chain) should be cleaned if the saw has been
heavily used or if the saw chain appears dirty. Rails should
always be cleaned every time the saw chain is removed.
OIL PASSAGES - Oil passages at bar pad should be
cleaned to ensure proper lubrication of the bar and chain
during operation. This can be done using a soft wire small
enough to insert into the oil discharge hole.
NOTE: The condition of the oil passages can be easily
checked. If the passages are clear, the chain will auto-
matically give off a spray of oil within seconds of starting
the saw. Your saw is equipped with an automatic oiler sys-
tem.
• CHAIN MAINTENANCE INSTRUCTIONS
WARNING:
Unless you have experience and specialized training for
dealing with kickback (see Safety Precautions), always
use a low-kickback saw chain, which significantly reduces
the danger of kickback. Low-kickback saw chain does not
completely eliminate kickback. A low-kickback or "safety
1chain", should never be regarded as total protection
against injury.
A low-kickback saw chain should always be used in con-
junction with other kickback protection devices such as
the chain brake / Hand Guard furnished with your unit.
Always use a replacement saw chain designed as "low-
kickback" or a saw chain which meets the low-kickback
performance.
A standard saw chain (a chain which does not have the
kickback reducing guard links) should only be used by an
experienced professional chain saw operator.
9
GB
WARNING: Always wear protective gloves
during maintenance operations. Do not carry
out maintenance when the engine is hot.
main-
CHAIN SHARPENING - The pitch of the chain (Fig. 16) is
3/8" LoPro x .050".
Fig. 16
Sharpen the chain using protective gloves and a round file
of ø3/16" (4.8mm).
Always sharpen the cutters only with outward strokes (Fig.
17) observing the values given in Fig. 16.
After sharpening, the cutting links must all have the same
width and length.
WARNING: A sharp chain produces well-
defined chips. When your chain starts to pro-
duce sawdust, it is time to sharpen.
After every 3-4 times the cutters have been sharpened
you need to check the height of the depth gauges and, if
necessary, lower them using the flat file and template sup-
plied optional, then round off the front corner. (Fig. 18)
WARNING: Proper adjustment of the depth
gauge is as important as proper sharpening
of the chain.
Fig. 17
• WHAT IS A LOW-KICKBACK SAW CHAIN?
A low-kickback saw chain is a chain which has met the
kickback performance requirements of ISO 9518.
By keeping the chain brake and saw chain in good work-
ing condition and correctly serviced as recommended in
this manual, you will be able to maintain the safety system
of your chain saw over the life of the product.
WARNING: Never remove, modify or make
inoperative any safety device furnished with
your unit. The Chain Brake/Hand Guard and
low-kickback saw chain are major safety fea-
tures provided for your protection.
WARNING: Always wear heavy duty protec-
tion work gloves and disconnect the extension
cord when working on the saw chain.
• CHAIN TENSION
Check the chain tension frequently and adjust as often as
necessary to keep the chain snug on the bar, but loose
enough to be pulled around by hand. (See Section SAW
CHAIN TENSION ADJUSTMENT).
• BREAKING IN A NEW SAW CHAIN
A new chain and bar will need readjustment after as few
as 5 cuts. This is normal during the break-in period, and
the interval between future adjustments will begin to
lengthen quickly.
Over a period of time, however, the moving parts of the
saw chain will become worn, resulting in what is called
CHAIN STRETCH. This is normal. When it is no longer
possible to obtain correct chain tension adjustment, a link
will have to be removed to shorten the chain. See your
Talon Authorized Service Center to have this repair per-
formed.
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 Talon 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 decrease rapid cutting
efficiency, shorten saw chain life, cause rapid dulling of
the chain, and lead to excessive wear of the bar from over-
heating. Too little oil is evidenced by smoke or bar discol-
oration.
• PREVENTATIVE MAINTENANCE
SERVICING A DOUBLE INSULATED APPLIANCE
In this double insulated appliance, 2 systems of insulation,
instead of grounding, are provided. No grounding means
is provided on a double insulated appliance, nor should a
means for grounding be added to the appliance. No serv-
iceable parts are inside. A double insulated appliance is
marked with the words, "DOUBLE INSULATION" or "DOU-
Fig. 18
BLE INSULATED". The symbol
square) may also be
marked on the appliance.
1. Place switch in OFF position and unplug the power
supply before the appliance is serviced, cleaned, or
maintenance is performed.
2. Keep the air intake clean and air vents free of debris
to avoid overheating the motor.
3. Clean with a damp sponge and mild soap. Do not
squirt with a water hose or douse with water or other
liquids.
4. Inspect the saw chain for proper tension before each
use and frequently during cutting. Sharpen as
required.
5. Clean the guide bar and bar pad to ensure free path
for oil.
10
GB
(square within a