Kohler 6VSG Service Manual

TP-6844 1/13 Section 4 Troubleshooting 57
4.9 Troubleshooting Chart
Use Figure 4-4 as a reference in troubleshooting
individual problems. Generator set faults are listed in
groups and include likely causes and remedies. The
simplest and most likely causes of the problem are
listed first; follow the recommendations in the order
shown. The reference column provides additional
sources of information in this and related manuals
regarding the problem and solution.
Figure 4-4
Problem Possible Cause Test Corrective Action Reference
Generator
set engine
does not
crank
Battery
connections
Check for reversed or poor battery
connections.
Correct and tighten battery
connections.
—
Weak or dead
battery
Check the battery voltage.
Test battery according to battery
manufacturer’s recommendations.
Recharge or replace battery. O/M
Check battery charger
connections and power
connection to the generator set.
Tighten connections. Connect
120VAC power to the genset
terminal block.
I/M
Open circuit in
engine/controller
connections
Check for loose connections. Tighten connections. Section 5.8
Check the wire harness continuity. Replace harness or harness leads
if damaged.
Section 5.10
Section 7
Poor ground (–)
connection
Test ground connection. Clean and retighten. —
Starter relay Check connections to the starter
relay.
Tighten connections.
Replace wiring if damaged.
Section 5.9
W/D Section 7
Check continuity of circuit. Replace harness or harness leads
if damaged.
Section 5.10
W/D Section 7
Check that the starter relay picks
up when 12 VDC is applied at lead
71 connection.
Replace starter relay. W/D Section 7
Starter Check starter connections. Tighten connections.
Replace wiring if damaged.
W/D Section 7
Troubleshoot the starter. See the
engine service manual for
instructions.
Rebuild or replace starter. Engine S/M
Controller Check for 12 VDC to the controller. Check battery and connections. W/D
Check the genset model, engine
model, and other controller
settings.
Adjust controller settings, if
necessary.
Section 3.3
Troubleshoot the controller as
described in Section 4.10.
See Section 4.10. Section 4.10
W/D = Wiring Diagram(s) (Section 7) Engine S/M = Engine Service Manual
I/M = Generator Set Installation Manual O/M = Generator Set Operation Manual
S/S = Generator Set Specification Sheet

Kohler 6VSG Specifications

General

Brand	Kohler
Model	6VSG
Category	Portable Generator
Language	English