Kohler KT19 series II User Manual

Problem
BATTERY
NOT
CHARGING
NO
LIGHTING
15 Amp System
(see Figure 6-9)
SECTION 6
ELECTRICAL SYSTEMS AND COMPONENTS
3 Amp System Service Guide
NOTE: Always zero ohmmeters on each scale
before testing, or inaccurate readings will result.
Test
Conclusion
1-With engine running at 3000 rpm,
If voltage is over 28 the stator is OK.
disconnect battery charging lead from
battery, measure DC voltage from
charging lead to ground.
2-With charging lead disconnected
If both resistance readings are low the
from battery measure resistance of
the diode is shorted.
lead to ground. Now reverse the
ohmmeter leads and take the
resistance reading
again-
In one direction resistance should
If both resistance readings are high,
read
infinity ohms (open circuit).
the diode or stator is open.
With
ohmmeter leads reversed
some resistance
should be measured
(about mid-scale with meter set
atRx1).
3-Cut the sleeving on the battery
If the reading is 0 ohms, the winding
charge lead to expose the diode con-
is shorted ... if infinity ohms, the sta-
nections.
Check resistance on the sta-
tor winding is open or the lead wire is
tor side of diode to ground (reading broken.
should be 1 ohm).
1-Disconnect lighting lead from wir-
If 15 volts or more stator is OK- if less
ing harness. Measure open circuit val-
than 15 volts wiring may be shorted.
!age with AC voltmeter from lighting
lead to ground with engine running at
3000 rpm.
2-Check resistance
of lighting wind-
If 0.5 ohms, stator is OK; if 0 ohms,
ing
lead to ground.
stator is shorted; if infinity ohms, the
stator is open or the lead broken.
A CAUTION:
The 15 amp alternator system consists of three
major components: a ceramic magnet ring which
is permanently affixed to an inner rim of the
flywheel, the alternator stator mounted on the
crankcase and a rectifier-regulator unit which is
mounted on the #1 side ofthe blower housing. Use
the 15 Amp System Service Guide when servicing
the system.
1. Make sure battery polarity is correct. Negative
ground systems are used.
2. Prevent alternator leads (AC) from touching or
shorting. This could permanently damage the
stator.
3. Disconnect leads at rectifier-regulator before
electric
welding is done on equipment in com-
mon ground with the engine.
37
I

Kohler KT19 series II Specifications

General

Brand	Kohler
Model	KT19 series II
Category	Engine
Language	English