Page 4 <&(%$*4.8"4,7%J'*#$"&8#K%/7*,#*%4,77%HLMMMLMIILNOPO1 Item 63408
?@<6AQ RS6;@ACRE D@CEA6E@ET6?6AFS
?*(Y"4*
B,Y*%>&'(%/&)*(%$&&7%#*(Y"4*9%+>%,%J',7"2"*9%(*/,"(%/*(#&8%'#"83%&87>%"9*8$"4,7%
(*/7,4*5*8$%/,($#1%%
T"(4'7,(%?,)%?,2*$>%U,(8"83#
1. X@EV6;-%[**/%.,89#%,),>%2(&5%
4'$$"83%,(*,%,89%$.*%+7,9*#1%[**/%>&'(%
#*4&89%.,89%&8%,'\"7",(>%.,897*K%&(%5&$&(%
.&'#"831 If both hands are holding the
saw, they cannot be cut by the blades.
2. X&%8&$%(*,4.%'89*(8*,$.%$.*%)&(Z/"*4*1
3. @9='#$%$.*%4'$$"83%9*/$.%$&%$.*%$."4Z8*##%&2%$.*%
)&(Z/"*4*1 Less than a full tooth of the blades’
4. E*Y*(%.&79%/"*4*%+*"83%4'$%"8%>&'(%.,89#%
&(%,4(&##%>&'(%7*31%?*4'(*%$.*%)&(Z/"*4*%
$&%,%#$,+7*%/7,$2&(51
5. B&79%/&)*(%$&&7%+>%"8#'7,$*9%3("//"83%
#'(2,4*#%).*8%/*(2&(5"83%,8%&/*(,$"&8%
).*(*%$.*%4'$$"83%$&&7%5,>%4&8$,4$%."99*8%
)"("83%&(%"$#%&)8%4&(91
6. U.*8%("//"83%,7),>#%'#*%,%("/%2*84*%&(%#$(,"3.$%
*93*%3'"9*1
and reduces the chance of blade binding.
7. @7),>#%'#*%+7,9*#%)"$.%4&((*4$%#"`*%,89%
#.,/*%]9",5&89%Y*(#'#%(&'89^%&2%,(+&(%.&7*#1
Blades that do not match the mounting hardware of
the saw will run eccentrically, causing loss of control.
8. E*Y*(%'#*%9,5,3*9%&(%"84&((*4$%+7,9*%
),#.*(#%&(%+&7$1 The blade washers and
9. T,'#*#%,89%R/*(,$&(%S(*Y*8$"&8%&2%["4Z+,4Z-
• Kickback is a sudden reaction to a pinched,
bound or misaligned saw blades, causing
an uncontrolled saw to lift up and out of
the workpiece toward the operator;
• When the blades are pinched or bound
tightly by the kerf closing down, the blades
stall and the motor reaction drives the
unit rapidly back toward the operator;
• If the blades become twisted or misaligned
in the cut, the teeth at the back edge of the
blades can dig into the top surface of the
wood causing the blades to climb out of the
kerf and jump back toward the operator.
Kickback is the result of saw misuse and/
or incorrect operating procedures or
conditions and can be avoided by taking
proper precautions as given below:
a. D,"8$,"8%,%2"(5%3("/%)"$.%+&$.%.,89#%&8%
$.*%#,)%,89%/&#"$"&8%>&'(%,(5#%$&%(*#"#$%
Z"4Z+,4Z%2&(4*#1%S&#"$"&8%>&'(%+&9>%$&%*"$.*(%
#"9*%&2%$.*%+7,9*#K%+'$%8&$%"8%7"8*%)"$.%$.*%
+7,9*#1
backwards, but kickback forces can be controlled
b. U.*8%+7,9*#%,(*%+"89"83K%&(%).*8%
"8$*(('/$"83%,%4'$%2&(%,8>%(*,#&8K%(*7*,#*%
$.*%$("33*(%,89%.&79%$.*%#,)%5&$"&87*##%
"8%$.*%5,$*(",7%'8$"7%$.*%+7,9*#%4&5*%$&%,%
4&5/7*$*%#$&/1%E*Y*(%,$$*5/$%$&%(*5&Y*%$.*%
#,)%2(&5%$.*%)&(Z%&(%/'77%$.*%#,)%+,4Z),(9%
)."7*%$.*%+7,9*#%,(*%"8%5&$"&8%&(%Z"4Z+,4Z%
5,>%&44'(1 Investigate and take corrective
actions to eliminate the cause of blade binding.
c. U.*8%(*#$,($"83%,%#,)%"8%$.*%)&(Z/"*4*K%
4*8$*(%$.*%#,)%+7,9*#%"8%$.*%Z*(2%,89%
4.*4Z%$.,$%#,)%$**$.%,(*%8&$%*83,3*9%
"8$&%$.*%5,$*(",71 If saw blades are binding,
d. ?'//&($%7,(3*%/,8*7#%$&%5"8"5"`*%$.*%
("#Z%&2%+7,9*%/"84."83%,89%Z"4Z+,4Z1
e. X&%8&$%'#*%9'77%&(%9,5,3*9%+7,9*#1
friction, blade binding and kickback.
f. W7,9*%9*/$.%,89%+*Y*7%,9='#$"83%
7&4Z"83%7*Y*(#%5'#$%+*%$"3.$%,89%#*4'(*%
+*2&(*%5,Z"83%4'$1 If blade adjustment shifts
while cutting, it may cause binding and kickback.
g. F#*%*\$(,%4,'$"&8%).*8%5,Z"83%,%
+7"89%,(*,#1
cut objects that can cause kickback.