8.11
Section 8
Electrical System and Components
8
Troubleshooting Guide 3 amp Battery Charging System with 70 Watt Lighting Stator
NOTE: Zero ohmmeters on each scale to ensure accurate readings. Voltage tests should be made with engine
running at 3000 RPM - no load. Battery must be fully charged.
Problem
Test
Conclusion
1. With engine running at 3000 RPM,
measure voltage across battery terminals
using a DC voltmeter.
1. If voltage is more than 12.5 volts, charging
system is OK.
If voltage is 12.5 volts or less, the stator or
diode are probably faulty. Test the stator
and diode (Test 2, 3 and 4).
2. Disconnect the charging lead from battery.
With engine running at 3000 RPM,
measure voltage from charging lead to
ground using a DC voltmeter.
2. If voltage is 20 volts or more, stator
winding is OK.
If voltage is less than 20 volts, test stator
using an ohmmeter (Tests 3 and 4).
3. With charging lead disconnected from
battery and engine stopped, measure
resistance from charging lead to ground
using an ohmmeter. Note reading.
Reverse the leads and measure resistance
again.
In one direction, the resistance should be
infinity ohms (open circuit). With the leads
reversed, some resistance should be
measured (about midscale on Rx1 range).
3. If resistance is low in both directions, the
diode is shorted. Replace the diode.
If resistance is high in both directions, the
diode or stator winding is open. (Use
Test 4).
4. Cut the sleeving on the charging lead to
expose the diode connections.
Measure the resistance from the stator side
of diode to ground using an ohmmeter.
4. If resistance is approximately 0.5 ohms,
stator winding is OK.
If resistance is 0 ohms, stator winding is
shorted. Replace stator.
If resistance is infinity ohms, stator
winding or lead is open. Replace stator.
1. Make sure lights are not burned out.
2. Disconnect the lighting lead from the wiring
harness.
With engine running at 3000 RPM,
measure voltage from lighting lead to
ground using an AC voltmeter.
3. With engine stopped, measure the
resistance of stator from lighting lead to
ground using an ohmmeter.
1. Replace burned out lights.
2. If voltage is 13 volts or more, stator is OK.
Check for loose connections or shorts in
wiring harness.
If voltage is less than 13 volts, test stator
using an ohmmeter (Test 3).
3. If resistance is approximately 0.2 ohms,
stator is OK.
If resistance is 0 ohms, stator is shorted.
Replace stator.
If resistance is infinity ohms, stator or
lighting lead is open. Replace stator.
No
Lights
No
Charge
To
Battery
Содержание COMMAND CV11
Страница 1: ...1 COMMAND SERVICE MANUAL VERTICAL CRANKSHAFT CV11 16 CV460 465 CV490 495...
Страница 20: ...2 4 Section 2 Special Tools...
Страница 28: ...4 4 Section 4 Air Cleaner and Air Intake System...
Страница 54: ...6 6 Section 6 Lubrication System...
Страница 109: ...9 15 Section 9 Disassembly 9 Regulating Pin Governor Gear Figure 9 53 Removing Governor Gear...
Страница 110: ...9 16 Section 9 Disassembly...
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