Electrical System Quick Checks; Electrical System Quick Checks; Battery Test; Charging System Test - Toro Workman GTX Service Manual

Electrical System Quick Checks

Battery Test

Use a multimeter to measure the voltage between the
battery terminals.
Set the multimeter to the DC volts setting. The battery
should be at a temperature of 60
switch should be OFF and all accessories turned off.
Connect the positive (+) meter lead to the positive bat-
tery post and the negative (−) meter lead the negative
battery post.
NOTE: This test provides a relative condition of the bat-
tery. Load testing of the battery will provide additional
and more accurate information.

Charging System Test

This is a simple test used to determine if a charging sys-
tem is functioning. It will tell you if the charging system
has an output, but not its capacity.
Remove seat base to gain access to battery. Use a digi-
tal multimeter set to DC volts. Connect the positive (+)
multimeter lead to the positive battery post and the neg-
ative (−) multimeter lead to the negative battery post.
Keep the test leads connected to the battery posts and
record the battery voltage.
NOTE: When starting the engine, the battery voltage
will drop and then should increase once the engine is
running.
NOTE: Depending upon the condition of the battery
charge and battery temperature, the battery voltage will
increase at different rates as the battery charges.
Electrical System
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to 100 F. The key
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Voltage Measured
12.68 V (or higher)
12.45 V
12.24 V
12.06 V
11.89 V
Make sure the shift lever is in the neutral position and the
parking brake is applied. Start the engine and run en-
gine at high idle (above 3000 RPM). Maintain high idle
engine speed to allow the battery to charge for at least
three (3) minutes. Record the battery voltage.
After running the engine for at least three (3) minutes,
battery voltage should be at least 0.50 volt higher than
initial battery voltage.
An example of a charging system that is functioning:
At least 0.50 volt over initial battery voltage.
Initial Battery Voltage
Battery Voltage after 3 Minute Charge
Difference
Battery Charge Level
Fully charged (100%)
75% charged
50% charged
25% charged
0% charged
= 12.30 v
= 12.95 v
= +0.65 v
Workman GTX Gasoline