
7
Safety
Electrical
In the USA this machine operates on a standard 15 
amp 115 volt A.C. power circuit. The amp, hertz, and 
voltage are listed on the data label found on each 
machine. Using voltages above or below those 
indicated on the data label will cause serious damage 
to the motors
Extension Cords
If an extension cord is used, the wire size must be at 
least one size larger than the power cord on the 
machine, and must be limited to 50 feet (15.5m) in 
length.
Grounding Instructions
This appliance must be grounded. If it should malfunc-
tion or breakdown, grounding provides a path of least 
resistance for electric current to reduce the risk of 
electric shock. This appliance is equipped with a cord 
having an equipment-grounding conductor and 
grounding plug. The plug must be inserted into an 
appropriate outlet that is properly installed and 
grounded in accordance with all local codes and ordi-
nances.
This appliance is for use on a nominal 120-volt circuit, 
and has a grounded plug that looks like the plug illus-
trated in sketch A. A temporary adapter looks like 
adapter illustrated in sketches B and C, may be used to 
connect this plug to a 2-pole receptacle as shown in 
sketch B if a properly grounded outlet is not available. 
The temporary adapter should be used only until a 
properly grounded outlet (sketch A) can be installed by 
a qualified electrician. The green colored rigid ear, lug 
or the like extending from the adapter must be 
connected to a permanent ground such as a properly 
grounded outlet box cover. Whenever the adapter is 
used, it must be held in place by a metal screw
Improper connection of the equipment-grounding 
conductor can result in a risk of electric shock. 
Check with a qualified electrician or service person 
if you are in doubt as to whether the outlet is 
properly grounded. Do not modify the plug 
provided with the appliance - if it will not fit the 
outlet, have a proper outlet installed by a qualified 
electrician.
.
NOTE: In Canada, the use of a temporary adapter is 
not permitted by the Canadian Electrical Code.
USING AN ADAPTOR
GROUNDING CONNECTION 
Note: Adaptors are not allowed in Canada.
Outlet
Tab for Grounding
Outlet Box
FIGURE C
Grounded
FIGURE A
Adaptor
Screw
FIGURE B
Adaptor
Metal Screw
Grounded
Grounding Pin
86400940 Operators Manual - CMD20