Makita EA3200S Operator's Manual page 15

Begin the felling cut slighty higher than the felling notch
and o n t he o pposite s ide o f t he t ree ( fig. 2 2). T hen c ut
horizontally through towards the felling notch. Apply
the c hain s aw w ith i ts s pikes d irectly b ehind t he u ncut
portion of wood and cut toward the notch (fig. 23).
Leave a pproximately 1 /10 o f t he t ree d iameter u ncut!
This i s t he h inge ( fig. 2 3). D o n ot c ut t hrough t he h inge
because y ou c ould l ose c ontrol o f t he d irection o f t he
fall. Drive wedges into the felling cut where necessary
to c ontrol t he d irection o f t he f all. W edges s hould b e o f
wood, l ight a lloy o r p lastic -­ n ever o f s teel, w hich c an
cause k ickback a nd d amage t o t he c hain.
Always keep to the side of the falling tree. When the
tree starts to fall, shut off the engine, withdraw the
bar and walk away on the pre-­planned escape path.
Watch o ut f or f alling l imbs.
WARNING!
Be extremely careful with partially fallen trees which
are poorly supported.
When the tree hangs or for some other reason does
not fall completely, set the saw aside and pull the
tree down with a cable winch, block and tackle or
tractor. If you try to cut it down with your saw, you
may b e i njured.
Sectioning M ethod
WARNING!
Felling a tree that has a diameter greater than the
length of the guide bar requires use of either the
sectioning or plunge-­cut method. T hese methods
are extremely dangerous because they involve
the u se o f t he n ose o f t he g uide b ar a nd c an r esult
in kickback. Only properly trained professionals
should a ttempt t hese t echniques.
For the sectioning method (fig. 24) make the first cut
with the guide bar fanning in toward the hinge. T hen,
using t he b umper s pike a s a p ivot, r eposition t he s aw
for the next cut. Avoid repositioning the saw more than
necessary. When repositioning for the next cut, keep
the guide bar fully engaged in the kerf to keep the
felling cut straight. If the saw begins to pinch, insert
a wedge to open the cut. On the last cut, do not cut
the hinge.
Plunge-­Cut M ethod
Timber h aving a d iameter m ore t han t wice t he l ength o f
the g uide b ar r eauires t he u se o f t he p lunge-­cut m ethod
before m aking t he f elling c ut.
First, cut a large, wide notch. Make a plunge cut in the
center of the notch.
The p lunge c ut i s m ade w ith t he g uide b ar n ose. B egin
the p lunge c ut b y a pplying t he l ower p ortion o f t he g uide
bar n ose t o t he t ree a t a n a ngle ( fig. 2 5). C ut u ntil d epth
of t he k erf i s a bout t he s ame a s t he w idth o f t he g uide
bar ( fig. 2 6). N ext, a lign t he s aw i n t he d irection i n w hich
the r ecess i s t o b e c ut. W ith t he s aw a t f ull t hrottle, i nsert
the g uide b ar i n t he t runk ( fig. 2 7).
Enlarge t he p lunge c ut a s s hown i n i llustration ( fig. 2 8)
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