Ampere Charging System (Gr3200) - Toro Greensmaster 3200 Service Manual

40 Ampere Charging System (GR 3200)
The alternator is belt driven and internally regulated
(Fig. 28).
Note: Prior to testing the charging system, make sure
the V–belt to the alternator is in good operation condition
and adjusted properly (see Belt Adjustment in Chapter
3 – Daihatsu Engine).
Test Equipment
Briggs and Stratton recommends using their digital
multimeter and shunt. The part numbers for these two
pieces of test equipment are supplied in the Briggs and
Stratton/Daihatsu Repair Manual that is located at the
end of Chapter 3 – Daihatsu Engine (Fig. 29).
If the above test equipment is not available, a shunt ca-
pable of handling at least 40 ampere can be used. Also,
a digital multimeter with a high impedance millivolt scale
(with at least 300mv range) can be used in conjunction
with the shunt.
Testing for DC Current Output (Fig. 30)
1. Install the DC shunt on the negative terminal of the
battery. Make sure all connections are clean and tight for
reliable amperage readings.
2. Attach RED meter test lead to the POSITIVE post of
the shunt.
3. Attach BLACK meter test lead to the NEGATIVE
post of the shunt.
4. Place multimeter to the millivolts scale.
5. Start the engine and run at 2000 rpm. Determine
current output. Current output should be from 4 to 20
ampere depending upon battery voltage and/or current
draw on the system.
6. If no or low current output is found, make sure all
connections are clean and secure. If there is still no or
low current output, replace the alternator.
Greensmaster 3200/3200–D
SHUNT
NEGATIVE
BATTERY
CABLE
Page 6 – 33
Figure 28
HIGH IMPEDENCE
MULTIMETER
Figure 29
BLACK
LEAD
RED
LEAD
Figure 30
Electrical System