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Ryobi RPP720 - CHAIN CARE AND STORAGE; CHAIN OILER; CHAIN MAINTENANCE; HOW TO SHARPEN THE CUTTERS

Ryobi RPP720
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7
ENGLISH
NOTE: If chain is too tight, it will not rotate. Loosen
the bar nut slightly and turn adjusting screw 1/4
turn counterclockwise. Lift the tip of the bar up and
retighten bar nut.
CHAIN OILER
See Figure 16
n Use Premium Bar and Chain Lubricant. It is designed
for chains and chain oilers and is formulated to
perform over a wide temperature range with no
dilution required.
n Remove the cap and carefully pour approximately
60ml of bar and chain lubricant into the bar lube
reservoir.
n Replace the cap and tighten securely.
n Check and refill the bar lube reservoir every time the
pole saw is used.
NOTE:
Do not use dirty, used, or otherwise
contaminated lubricants. Damage may occur to the oil
pump, bar, or chain.
CHAIN MAINTENANCE
See Figure 17.
For smooth and fast cutting, the chain needs to be
maintained properly. The following conditions indicate
that the chain requires sharpening:
n Wood chips are small and powdery.
n Chain must be forced through the wood during
cutting.
n Chain cuts to one side.
During maintenance of the chain, consider the following:
n Improper filing angle of the side plate can increase
the risk of a severe kickback.
n Depth gauge (or raker clearance) setting determines
the height the cutter enters the wood and the size of
the wood chip that is removed. Too much clearance
increases the potential for kickback. Too little
clearance decreases the size of the wood chip thus
decreasing the chain’s cutting ability.
n If cutter teeth have hit hard objects such as nails and
stones, or have been abraded by mud or sand on the
wood, have service dealer sharpen chain.
HOW TO SHARPEN THE CUTERS
See Figures 18 - 21.
Be careful to file all cutters to the specified angles and
to the same length, as fast cutting can be obtained only
when all cutters are uniform.
n Tighten the chain tension enough that the chain does
not wobble. Do all of your filing at the mid-point of the
bar. Wear gloves for protection.
n Use a 4mm(5/32), diameter round file and holder.
n Keep the file level with the top plate of the tooth. Do not
let the file dip or rock.
n Using light but firm pressure, stroke towards the front
corner of the tooth. Lift file away from the steel on each
return stroke.
n Put a few firm strokes on every tooth. File all left hand
cutters in one direction. Then move to the other side
and file the right hand cutters in the opposite direction.
Occasionally remove filings from the file with a wire
brush.
CAUTION:
Dull or improperly sharpened chain can cause
excessive motor speed during cutting which may
result in severe motor damage.
WARNING:
Improper chain sharpening increases the potential
of kickback. Failure to replace or repair damaged
chain can cause serious injury.
STORING THE PRODUCT
See Figure 22.
n Clean all foreign material from the product. Store
idle unit indoors in a dry, well-ventilated area that is
inaccessible to children. Keep away from corrosive
agents such as garden chemicals.
n Always place the blade cover on the saw bar when
transporting or storing the pole saw. The blade cover
is a snug fit and must be attached very carefully due
to the sharp teeth on the saw chain. This is best done
by grasping the blade cover at one end, in the center
portion of the blade cover, and carefully sliding it over
the chain as shown. Use caution to avoid the sharp
teeth of the chain.
NOTE: The saw chain is very sharp. Always wear
protective gloves when handling the chain.

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