BLACK&DECKER NPP2018 Manual De Instrucciones página 9

• Place new chain in groove of guide bar and around sprocket. Make
sure saw teeth are facing correct direction by matching arrow on
chain with graphic on housing shown here.
• Rotate the screw in the front of the housing clockwise to increase
the chain tension as in Figure 3.
• Replace sprocket cover, bar clamp, and allen head screws.
• Follow instructions for adjusting the chain tension.
Adjusting Chain Tension
• With the saw still on a firm surface check the chain tension. The
tension is correct when the chain snaps back after being pulled
1/8 in. (3mm) away from the chain
bar with light force from the middle
finger and thumb as shown in
figure 4. There should be no "sag"
between the guide bar and the chain
on the underside as shown in
figure 5.
• To adjust saw chain tension, loosen
allen head screws.
• Rotate the screw in the front of the
housing using the flat screwdriver end
of the wrench as shown in figure 3.
• Do not over-tension the chain as this will
lead to excessive wear and will reduce
the life of the bar and chain.
Overtensioning also reduces the amount of cuts you will get per
battery charge.
• Once chain tension is correct, tighten allen head screws to clamp
bar.
• When the chain is new check the tension frequently (after
disconnecting battery) during the first 2 hours of use as a new chain
stretches slightly.
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Chain Oiling
• A high quality bar and chain oil or
SAE30 weight motor oil should be
used for chain and bar lubrication. The
use of a vegetable based bar and chain
oil is recommended when pruning
trees. Mineral oil is not recommended
because it may harm trees. Never use
waste oil or very thick oil. These may
damage your chain saw.
• Lubricate the whole chain evenly
before each use as shown in figure 6.
Also lubricate the chain whenever
replacing a fully discharged battery with
a fully charged one.
Transporting Pole Saw
• Always remove the battery pack from the
handle (figure 7) and cover the chain with the
scabbard (figure 8) when transporting the
Pole Saw. See page 5 for additional
information on transporting the battery.
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