MTD PS720r Pole Saw User Manual


 
13
MAINTENANCE AND REPAIR INSTRUCTIONS
CHAIN MAINTENANCE
A low-kickback saw chain should always be used in
conjunction with other kickback protection devices such
as the hand guard, which is furnished with your unit.
Always use a r
eplacement saw chain designed as “low-
kickback” or a saw chain which meets the low-kickback
per
formance.
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.
Low-Kickback Saw Chain
A low-kickback saw chain is a chain which has met the
kickback performance requirements of ANSI B175.1. Do
not use other replacement chain unless it has met these
requirements for your specific model.
By keeping the saw chain in good working 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.
Ensure that the unit
is off and the spark
plug is disconnected (for gas powerheads)
when working on the saw chain. Wear heavy
duty gloves too.
WARNING:
Never remove,
modify or make
inoperative any safety device furnished with
your unit. The low kick back saw chain is a
major safety feature provided for your
protection.
WARNING:
Unless you have
experience and
specialized training for dealing with
kickback (see Important Safety Instructions),
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 chain,” should never be
regarded as total protection against injury.
WARNING:
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. Refer to
Saw
Chain Tension Adjustment.
Br
eaking 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 TrimmerPlus Authorized Service Center to have this
repair performed.
Never use a loop of
chain that has more
than 3 links removed from it. This could
damage the sprocket.
WARNING:
SPECIFICATIONS
POLE SAW ADD-ON
Approximate Operating Weight of Attachment........................................................................................... 3.3 lbs. (1.5 kg)
Drive Shaft Length.............................................................................................................................................. 26” (66 cm)
Cutting Width ................................................................................................................................................... 8" (200 mm)