Limbing And Pruning; Service And Adjustments - Husqvarna BKS 4615 Operating Instructions Manual

st
1 Cut
nd
2 Cut
Using a support stand
nd
2
st
1 Cut
nd
2 Cut

LIMBING AND PRUNING

WARNING
: Be alert for and guard
against kickback. Do not allow the moving
chain to contact any other branched or objects
at the nose of the guide bar when limbing or
pruning. Allowing such contact can result in
serious injury.
WARNING
: Never climb into a tree to
limb or prune. Do not stand on ladders, plat-
forms, a log, or in any position which can cause
you to lose your balance or control of the saw.
IMPORTANT POINTS
S Watch out for springpoles. Use extreme
caution when cutting small size limbs. Slen-
der material may catch the saw chain and be
whipped toward you or pull you off balance.
S Be alert for springback. Watch out for
branches that are bent or under pressure.

SERVICE AND ADJUSTMENTS

WARNING
: Disconnect the spark
plug before performing maintenance, except
for carburetor adjustments.
We recommend all service and adjustments
not listed in this manual be performed by an
Authorized Service Dealer.
Avoid being struck by the branch or the
saw when the tension in the wood fibers is
released.
S Keep a clear work area. Frequently clear
branches out of the way to avoid tripping
over them.
LIMBING
S Always limb a tree after it is cut down. Only
Cut
then can limbing be done safely and prop-
erly.
S Leave the larger limbs underneath the
felled tree to support the tree as you work.
S Start at base of the felled tree and work to-
ward the top, cutting branches and limbs.
st
1 Cut
Remove small limbs with one cut.
S Keep the tree between you and the chain
as much as possible.
S Remove larger, supporting branches with
the cutting techniques described in BUCK-
ING WITHOUT A SUPPORT.
S Always use an overcut to cut small and
freely hanging limbs. Undercutting could
cause limbs to fall and pinch saw.
PRUNING
WARNING
shoulder height or below.
branches are higher than your shoulder. Get
a professional to do the job.
S Make your fist cut
the bottom of the limb.
S Next make a 2nd cut all the way through
the limb. Then cut a third overcut leaving
a 1 to 2 inch collar from the trunk of the tree.
Third cut
MAINTENANCE SCHEDULE
Check:
Fuel mixture level
Bar lubrication
Chain tension
Chain sharpness
For damaged parts
For loose caps
For loose fasteners
For loose parts
Inspect and Clean:
Bar . . . . . . . . . . . . . . . .
Complete saw
Air filter
Chain brake
Spark arresting screen
and muffler
Replace spark plug
Replace fuel filter
* Hours of Operation
12
: Limit pruning to limbs
Do not cut if
of the way through
1/3
Second cut
Collar
First cut
Pruning technique
. . . . Before each use
. . . . . . . Before each use
. . . . . . . Before each use
. . . . Before each use
. . Before each use
. . . . . . Before each use
. . . Before each use
. . . . . . Before each use
Before each use
. . . . . . . After each use
. . . . . . . . . . . . . Every 5 hours*
. . . . . . . . Every 5 hours*
. . . . . . . . . Every 25 hours*
. Yearly
. . . Yearly