Page 9;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1Item 64120 
 
EF;6GHIJ6KFGLIMNFLMG6MFMO6 E6GPJ
N,"8$*8,84*%,89%E*(W"4"83
%J(&4*9'(*#%8&$%#/*4"2"4,77V%*Z/7,"8*9%"8%$."#%5,8',7%5'#$%
+*%/*(2&(5*9%&87V%+V%,%<',7"2"*9%$*4.8"4",81
GI%JK6!6MG%E6KLIPE%LMiPKH%;KIN%FOOLU6MGFT%IJ6KFGLIM-%%K*7*,#*%$.*%G("33*(%,89%
'8/7'3%$.*%$&&7%2(&5%"$#%*7*4$("4,7%&'$7*$%+*2&(*%/*(2&(5"83%,8V%/(&4*9'(*%"8%$."#%#*4$"&81%
GI%JK6!6MG%E6KLIPE%LMiPKH%;KIN%GIIT%;FLTPK6-%%U&%8&$%'#*%9,5,3*9%*<'"/5*8$1%%
L2%,+8&(5,7%8&"#*%&(%W"+(,$"&8%&44'(#=%.,W*%$.*%/(&+7*5%4&((*4$*9%+*2&(*%2'($.*(%'#*1
O7*,8"83=%N,"8$*8,84*=%,89%T'+("4,$"&8
1.  S6;IK6%6FO_%PE6= inspect the general 
condition of the tool.  Check for:
•  loose hardware
•  misalignment or binding of moving parts
•  cracked or broken parts
•  damaged electrical wiring
•  any other condition that may 
affect its safe operation.
2.  F;G6K%PE6= wipe external surfaces 
of the tool with clean cloth.
3.  QFKMLMRh%%L2%$.*%#'//7V%4&(9%&2%$."#%
/&)*(%$&&7%"#%9,5,3*9=%"$%5'#$%+*%(*/7,4*9%
&87V%+V%,%<',7"2"*9%#*(W"4*%$*4.8"4",81
G(&'+7*#.&&$"83
J(&+7*5 J&##"+7*%O,'#*# T"X*7V%E&7'$"&8#
Tool will not start. 1.  Cord not connected.
2.  No power at outlet. 
 
 
3.  Tool’s thermal reset breaker 
tripped (if equipped).
4.  Internal damage or wear.  
(Carbon brushes or 
switch, for example.)
1.  Check that cord is plugged in.
2.  Check power at outlet.  If outlet is unpowered, 
turn off tool and check circuit breaker.  If breaker 
is tripped, make sure circuit is right capacity 
for tool and circuit has no other loads.
3.  Turn off tool and allow to cool.  
Press reset button on tool.
4.  Have technician service tool and/
or replace Carbon Brushes.
Tool operates slowly. Extension cord too long or 
cord diameter too small.
Eliminate use of extension cord.  If an extension 
cord is needed, use one with the proper diameter 
for its length and load.  See Extension Cords 
in Grounding section on page 5.
Performance 
decreases over time.
Carbon brushes worn or damaged. Replace Carbon Brushes.
Excessive noise 
or rattling.
Internal damage or wear.  (Carbon 
brushes or bearings, for example.)
Have technician service tool.
Overheating. 1.  Forcing tool to work too fast.
2.  Blocked motor housing vents. 
 
3.  Motor being strained by long or 
small diameter extension cord.
1.  Allow tool to work at its own rate.
2.  Wear ANSI-approved safety goggles and 
NIOSH-approved dust mask/respirator while 
blowing dust out of motor using compressed air.
3.  Eliminate use of extension cord.  If an extension 
cord is needed, use one with the proper diameter 
for its length and load.  See Extension Cords 
in Grounding section on page 5.
% ;&77&)%,77%#,2*$V%/(*4,'$"&8#%).*8*W*(%9",38&#"83%&(%#*(W"4"83%$.*%$&&71%%U"#4&88*4$%/&)*(%
#'//7V%+*2&(*%#*(W"4*1