Types Of Cutting - Craftsman 358.356070 Operator's Manual

TYPES OF CUTTING
iiii, .....
A. BASIC CUTTING TECHNIQUIE
1, IMPORTANT POINTS. -
a, Cut wood only. Do not cut
memll p lastics,
r_asonry,non_
buildingrr_t_aJs, etc. D OHot
useyoursawtopryorshove awayI_bs, tools or
othe_o_ec_s.
b, Stop the saw if the chain strikes a foreign
ob]ect. Inspecttheunit and repairor replace
partsas necessary.
c, Keep _hechain out of dirt a_d Sand. Even a
sma i amountof dirtwit! quickly duffa chainand
., thu s increaselhePOSsibi_it_ ofidckback.
' A KICKBACK WARNING ...... --
Klckbackcanoccurwhenthemovtngchain contactsan
oh]eclat theupperpon]on otthetlp olthegu_debar or
when the woodclosesln and
plnche_ithe
sew¢hel. In
the cut. Contact at the upperportloo of the tfp Ofthe
guidebar can causetha chalnto dtglntothe objectand
stop the_chaln|oran Instant, The result Is a lightning
faM, reversemacttonwhlehklcksthegu[deberupand
beck toward the operator. If the saw chain Ispinched
along the top of the guide bar_the guide bar can be
drtvenrapldlybackfowardtheoperator. Eltheroffh_se
reactions can cause loss of saw control which can
result in serious personal Injury.
2, UNDERSTAND REACTIVE FORCES
Ptnch-Klckbaokand Pull.Inoccm when the chmln
Issuddenlystopl_,d bybetng pinched, caught,or
by contacting a/o_elgn object In the Wood. This
results ina reverse] o _thechain forceusedtocutwood
andcsuses tits _w to_:_e in iheOpposite dfrecLtorz of
chainrelatton.Eilher_actlon _n i'esgltin !assofcon-
trd and,oosstble serlous person=_]uty.
a Pinch*Kickback
-occumwhentha chain, ontopofth e barissuddenly
stopped when fhe top of t_ bar isused for curling,
- rapidlydrives Ihe saw stmght badx tOwardthe
operaz_ " '
a Pull-tn_ " " " "
- can occur when the chainbn th_ bottOm of the
bat_s saddenS/stopped, --
- putls lhesaW rapidly fon,,'ard.
B. TREE FELLINGTECHIM'IGUES
1, PLAN YOUR'SAWING OPERATION CALVE*
FULLY IN ADVANCE
a. Cleartheworkatea, Youneedacleararaaall
around the tree where you can have secure
tooting. •
b. Study Ihe nat urafconditions that can cause
the tree to falltn a part{culardlrection:
_:I 1he WlND_rect_onand speed.
TheLEAN of _hetree,
3,) WEIGHTEOwithBRANCHESon oneside,
4,} Surrounding T REES emd O9STACLES.
c, Look for decay and rot. Ifthe tr_n_ is rotted.
itcouldsnap_nd f_!_toward theopera,or.
3. PROCEDURE'! '_'' ' '. "_ , : " '
Pra_€_ng afe*a'_ k_ u_ngee_hn_
que_gelt_ _,bf_r_yo.r saw_toreyo_ begina
¢
a. Accelerate thi_ en_ne to fid_throttle _ust _fore.
anteflng the Cut bySqueezing the throt_e
t_gger,
Figure16. : i : " :
..
c. Keepthe e_j_e atlutffhmtlle tee entire time you
a_ecutting,;
d,Allow the chain tocut lot you exert only light
downwardpressure,tfyouforcethe cut,damageto
theb+m_ c haJn _eri_ihocan resulL i "
e. Release the thmtt!e tdgge_ as soon as the cut Is
completed, at]o_,vlrig thebngtnetoldle: llyou runIha
Sexy = lullth_Ot_avfitl_utact_tilng
load,onne,_.ossary
wearcan occur Io t_ chain, bar,andang!ne,
f. Donot pat pressumanthe sewatthe endoflhecut
toavoidlosingcontK_ when thecutis complete.
g. Sloptheeng_e before _ttlngt hes_v downafter
cutting. ; ::