Stihl MS 380 Manual page 15

2
3
When repositioning for the next cut (2),
keep the guide bar fully engaged in the
kerf to keep felling cut straight – apply
the spiked bumper.
Last cut (3):
Apply the spiked bumper as for the
simple fan cut.
Do not cut through the hinge!
MS 380
Plunge-cutting
Do not attempt plunge-cutting unless
you are experienced in this cutting
technique.
– Use a low kickback chain and be
extremely cautious.
– For heartwood cut.
– For felling leaners.
– For relieving cuts during bucking.
– For DIY projects.
4
Begin cut by applying lower portion of
the guide bar nose (4) – do not use
upper portion because of risk of
kickback. Cut until depth of kerf is twice
the width of the guide bar.
Swing saw slowly (5) into plunge-cutting
position. Take care because of the risk
of kickback or pushback.
Make the plunge cut (6) very carefully.
Danger of pushback.
Heartwood cut
Perform heartwood cut
– if tree diameter is more than twice
the length of the guide bar.
– if a large portion of heartwood
remains uncut on large diameter
trees.
– on trees that are difficult to fell (oak,
beech), to prevent heartwood
splintering and maintain planned
direction of fall.
– on soft deciduous trees to relieve
6
tension in lying log and prevent
slivers in the center of the hinge
being torn out of the log.
5
:
Begin plunge cut by inserting the
bar in the felling notch and then
enlarge the cut to both sides.
English
15