Service Manual

Carefree Mower Service Manual 4 - 1
TESTING ELECTRICAL COMPONENTS
120 Volt Models
There are four components in the electrical system:
A. Motor.
B. 2 wires between the motor and switch.
C. Switch.
D. Wires between the switch and the plug
receptacle.
Safety Information
Electric products have a different set of safety
g
uidelines:
• Use common sense. High voltage and high current
potentials are present.
• Remove all jewelry (i.e. rings, watches) before
performing service work to prevent accidental short
circuits. An accidental short
could cause severe
burns. This is especially important on battery
powered units.
• Do not touch live wires as the resulting shock could
be unpleasant or even fatal.
Wiring Diagrams
Always consult the wirin
g
dia
g
ram under the cover for
proper wire connections, location, and polarity (Figure
34).
Fi
g
ure 34
5306-119
120 Electrical System Testing
Because of the simplicity of the system, there are only
two tests that need to be made.
*Measure at motor leads with power disconnected.
A. Motor test (Figure 35).
Figure 35
5306-120
B. Wires between the motor and switch — check for
breaks, damaged insulation or loose terminals.
C. Switch — the switch is a standard on-off switch
and can be checked with a continuity light or
ohmmeter.
NOTE: As this switch is activated by a cable, verify
that the cable adjustment correctly activates the
switch.
D. Wires between the switch and plug receptacle —
these wires should be checked in the same way as
the motor to switch wires. There is one additional
possibility. The use of an extension cord with a
poor terminal may result in burnt terminals on the
mower. A loose connection between the cord and
mower can cause arcin
g and burnt terminals.
Should this occur, replace the terminals on the
mower and either the extension cord or the plug on
the end of the cord.
Description Specification
Motor Input Voltage 108 - 132 VAC
Motor Resistance* 0.8 to 1.2 ohms
4