Motor Safety Protection; Wire Sizes - RIDGID CM 1400 Owner's Manual

Improper connection of the equipment grounding con-
ductor can result in a risk of electric shock. The conduc-
tor with insulation having an outer surface that is green
with or without yellow stripes is the equipment grounding
conductor. If repair or replacement of the electric cord or
plug is necessary, do not connect the equipment-ground-
ing conductor to a live terminal.
If power cord is worn or cut, or damaged in any way, have
it replaced immediately by a qualified electrician.
If the grounding instructions are not completely under-
stood, or if you are in doubt as to whether the tool is prop-

Motor Safety Protection

IMPORTANT: To avoid motor damage, this motor should
be blown out or vacuumed frequently to keep dust from
interfering with normal motor ventilation.
1. Connect this tool to a power source with the appropri-
ate voltage for your model and a 15-amp branch circuit
with a 15-amp time delay fuse or circuit breaker. Using
the wrong size fuse can damage the motor.
2. If the motor won't start, turn the switch off immediately
and unplug the tool. Check the abrasive wheel to make
sure it turns freely. If the wheel is free, try to start the
motor again. If the motor still does not start, refer to the
"Motor Troubleshooting Chart".
3. If the motor suddenly stalls while cutting, release the
trigger switch, unplug the tool, and free the abrasive
wheel from the workpiece. The motor may now be
restarted and the cut finished.

Wire Sizes

NOTE: Make sure the proper extension cord is used and
is in good condition.
Use only 3-wire extension cords that have 3-prong
grounding plugs and 3-pole receptacles that accept the
tool's plug.
The use of any extension cord will cause some loss of
power. To keep this to a minimum and to prevent over-
heating and motor burn-out, use the table at right to
determine the minimum wire size (A.W.G.) extension
cord.
erly grounded check with a qualified electrician or service
personnel.
WARNING: Do not permit fingers to touch the ter-
minals of plug when installing or removing the
plug from the outlet.
WARNING: If not properly grounded, this tool can
cause an electrical shock, particularly when used
in damp locations, in proximity to plumbing, or out
of doors. If an electrical shock occurs there is the
potential of a secondary hazard, such as your
hands contacting the cut-off wheel.
4. Fuses may "blow" or circuit breakers may trip fre-
quently for the following reasons:
a. Motor Is Overloaded-Overloading can occur if you
feed too rapidly or make too many start/stops in a
short time.
b. Line voltages should not be more than 10% above
or below the nameplate voltage. For heavy loads,
however, the voltage at motor terminals must equal
the voltage specified for your model.
c. Improper or dull saw abrasive wheel is used.
5. Most motor troubles may be traced to loose or incor-
rect connections, overload, low voltage (such as small
size wire in the supply circuit) or to overly long supply
circuit wire. Always check the connections, the load
and the supply circuit whenever motor doesn't work
well. Check wire sizes and length with the Wire Size
Chart below.
Extension Cord
Length
0-25
25-50
7
Gauge
(A.W.G.)
14
12