Titan TTB426GDO, Operating Manual

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POLE PRUNER 750W TTB426GDO
2. REPLACING/CHANGING SAW CHAIN AND
GUIDE BAR
Assemble the chain and guide bar as described in
“ASSEMBLY INSTRUCTIONS”.
Over time, the circular groove of the guide bar will show
wear on the lower edge. When replacing the chain, turn the
chain bar 180° to allow even wear, thus extending chain bar
life.
Check drive sprocket. If it is worn out or damaged due to
strain, have it exchanged by an authorized service agent. If
the guide bar is worn out or damaged, have it exchanged by
an authorized service agent.
3. LUBRICATE DRIVE SPROCKET
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 (C) and inject grease until it appears at the
outside edge of the sprocket tip. (See Fig.15)
4). Make sure to switch pruner off and rotate the saw chain
by hand. Repeat the lubrication procedure until the entire
sprocket tip has been greased.
4. CLEAN GUIDE BAR RAILS
1). Remove side cover, guide bar and saw chain.
2). Using a screwdriver, putty knife, wire brush or other
similar instrument, clear residue from the rails on the guide
bar. This will keep the oil passages open to provide proper
lubrication to the bar and chain. (See Fig.16)
3). Reinstall the bar, chain (adjust tension), sprocket cover
and bar bolt retaining nuts.
5. GUIDE BAR MAINTENANCE
Most guide bar problems can be prevented simply by
keeping the pruner well maintained. Incorrect filing and non-
uniform cutting and depth gauge settings cause most guide
bar problems, primarily resulting 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 pruner with a chain that
is too tight will contribute to rapid wear. To help minimize
wear on the bar, the following guide bar maintenance is
recommended.
3). Reinstall the bar, chain (adjust tension), sprocket cover
and bar bolt retaining nuts.
Fig. 16
Fig. 15
C