Testing
Problem
Test
Conclusion
No charge to
battery
1. Insert an ammeter in
between the battery
lead and the B+
terminal. Connect a
voltmeter from b+ lead
to ground. Run the
engine at high idle.
1. If the charge rate
increases when load is
applied the charging
system is OK and the
battery was fully charged.
Refer to the stator type alternator testing table.
(Table 6)
If the charge rate does
not increase when a load
is applied, test stator and
rectifier-regulator.
If voltage is 13.8 volts or
higher, and there is no
amperage, place a
minimum load of 5
amps on the battery to
create a load on the
system, observe the
ammeter
(Test 2 and 3)
2. Remove the stator
wire connector from the
rectifier-regulator. With
the engine running at
high idle, measure AC
voltage across the
stator leads (lead ac &
ac) with an AC
2. If the voltage is equal
to the specification in the
service manual or
greater, the stator is OK.
The rectifier-regulator is
faulty. Replace the
rectifier-regulator.
voltmeter.
If the voltage is less than
specified voltage, the
stator is probably faulty
and should be replaced.
Test the stator further
using an ohmmeter (test
3).
3a. With the engine
stopped, measure the
resistance across the
stator leads (ac & ac)
using an ohmmeter.
3a. If the resistance is
equal to the
specifications, the stator
is OK.
If the resistance is 0
ohms, the stator is
shorted. Replace stator.
If the resistance is infinity
ohms, the stator is open.
Replace the stator.
3b. If resistance is
infinity ohms (no
continuity), the stator is
OK (not shorted to
ground). If resistance or
continuity is measured,
the stator leads are
shorted to ground.
Replace the stator.
1. If voltage is 14.7 volts
or less the charging
system is OK. The
battery in unable to hold
a charge. Service the
battery or replace as
necessary.
3b. With the engine
stopped, measure the
resistance from each
stator lead to ground
using an ohmmeter.
Battery
1. With engine running
at high idle, measure
voltage from B+ lead to
ground using a DC
voltmeter.
Continuously
charges at
high rate
If voltage is more than
14.7 volts, the rectifier-
regulator is faulty.
Replace rectifier-
regulator
Table 6
18
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro 96885SL |
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| Language | English |
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