HydraMaster Boxxer 421, Owner'S Manual

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Page 8-5: Electrical System
Boxxer 421
Electrical Troubleshooting
No. Problem/
Possible Cause
Solution
1.0 The engine is not charging the battery.
1.1 The regulator/rectifier is bad. Check the B+ voltage from the
regulator/rectifier to ground. With
the engine running at normal RPM
the voltage should be 12.5 to 14.5
DC volts. If necessary, replace the
regulator/rectifier.
1.2 The stator winding is bad. Check for AC voltage at the regulator/
rectifier. The stator should be pro-
ducing an AC voltage of around 25 to
40 volts. Check your Owner’s manual
for the exact voltage. If necessary,
replace the stator winding.
No. Problem/
Possible Cause
Solution
2.0 The fuse is blown.
2.1 There is an electrical short Check for a loose wire or a wire that
in the system. has rubbed it’s insulation off and is
shorting out to ground. Unscrew each
individual wire (except the whitewires)
one at a time until the fuse does not
trip. Then trace that circuit.