Kohler 14RES Manual page 32

Problem Possible Cause
Exhaust system
Noisy
leaks
operation
Engine not running
smoothly
Broken or damaged
vibromount(s)
Loose or vibrating
sheet
metal/housing
Exhaust piping or
air inlets/outlets not
securely installed
Excessive
engine/generator
vibration
Air cleaner clogged
Erratic
operation
Spark plug(s)
Spark plug wire(s)
DSAM leads
incorrectly
connected or
disconnected
Fuel line restriction
Fuel mixture
adjustment
incorrect
Magnetic pickup
connections
Governor
adjustment
incorrect
Ignition system
Inadequate cooling
(hot engine only)
Other engine
service required
Light Voltage stability
flicker (gain) setting
W/D = Wiring Diagram(s) (Section 7)
I/M = Generator Set Installation Manual
* RDC controller settings can be checked and adjusted using the controller user interface or using a personal computer running SiteTech
software. DC controller settings can only be changed using SiteTech.
32 Section 3 Troubleshooting
Test
Check silencer and connections
for leaks.
See "Erratic operation," this table.
Inspect vibromounts.
Check for loose screws and
rivets.
Inspect for loose parts.
Check rotor, crankshaft, bearing,
etc. (disassembly of engine
and/or alternator may be
required).
Check air filter element.
Check spark plug condition and
gap.
Check spark plug connections
and wires.
Check DSAM/DSAI lead
connection.
Check fuel lines.
Check fuel pipe size.
Use oxygen sensor to check fuel
mixture.
Check for loose connections to
the mag pickup.
Check governor operation.
Check controller engine speed
(frequency) adjustment. *
Test ignition system according to
instructions in engine service
manual.
Check air inlet and outlet.
See engine service manual.
Check the voltage stability (gain)
setting using the RDC controller. *
S/S = Generator Set Specification Sheet
Engine S/M = Engine Service Manual
Corrective Action
Replace gaskets and exhaust
system components as
necessary.
See "Erratic operation," this table.
Replace as necessary.
Retighten screws, replace rivets.
Secure loose parts as necessary.
Check, rotor, crankshaft, bearing,
etc. (disassembly of engine
and/or alternator may be
required).
Replace element.
Replace or regap plugs.
Tighten connections. Replace
damaged spark plug wires.
Connect for natural gas.
Disconnect for LP.
Clear restricted fuel lines.
Contact fuel supplier to install
larger diameter pipe.
Adjust fuel mixture.
Tighten mag pickup connections.
Replace damaged wiring.
Adjust governor.
Adjust controller engine speed. *
Service ignition system according
to instructions in engine service
manual.
Clear air inlet and outlet.
Service according to instructions
in engine service manual.
Adjust the voltage stability (gain)
setting using the RDC controller. *
O/M = Generator Set Operation Manual
Reference
—
—
Section 6
—
—
Section 6
Engine S/M
O/M
O/M
Engine S/M
Section 5.11.2
Section 5.11.3
Section 5.11
Section 5.9
Section 5.9
Section 4.10 and
Installation Man.
Engine S/M
—
Engine S/M
Section 4.10.4
TP-6735 7/17