Kohler 14RESA Manual page 82

Problem Possible Cause
Starts hard Low battery voltage Check battery voltage during
Air cleaner clogged
Fuel mixture
adjustment
incorrect
Ignition timing leads
incorrectly
connected or
disconnected
Spark plug(s)
Spark plug wire(s)
Ignition
components (spark
control or ignition
module)
Insufficient fuel
pressure
Engine problem.
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
Overheats Inadequate cooling
Air cleaner clogged. Check for a dirty air cleaner
W/D = Wiring Diagram(s) (Section 8)
I/M = Generator Set Installation Manual
* RDC2 controller settings can be checked and adjusted using the controller user interface or using a personal computer running SiteTech
software. DC2 controller settings can only be changed using SiteTech.
82 Section 5 Troubleshooting
Test
cranking.
Check battery charger
connections and utility power
connection to the generator set.
Check for a dirty air cleaner
element.
Use oxygen sensor to check fuel
mixture.
Check ignition timing connection.
Check spark plug condition and
gap.
Check spark plug wires and
connections.
Test ignition components
according to instructions in the
engine service manual.
Check fuel pressure to the
generator set. Verify adequate
fuel pressure and pipe size for the
generator set plus all other gas
appliances.
Troubleshoot the engine.
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).
Inspect engine and enclosure for
air intake obstructions.
element.
S/S = Generator Set Specification Sheet
Engine S/M = Engine Service Manual
Corrective Action
Charge battery. Replace battery
if necessary.
Tighten loose connections.
Replace element.
Adjust fuel mixture.
Connect for natural gas.
Disconnect for LP.
Replace or regap spark plug(s).
Tighten connections. Replace
spark plug wires if damaged.
Replace ignition components if
necessary.
Contact fuel supplier to replace
fuel supply lines with larger pipe
and replace gas meter if fuel
pressure is insufficient.
See engine service manual.
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).
Clear any air intake obstructions.
Replace air cleaner element.
O/M = Generator Set Operation Manual
Reference
O/M
W/D Section 8
O/M
Section 6.11
Section 6.11.2
O/M
Engine S/M
Engine S/M
Section 6.11.3
Engine S/M
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Section 7
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Section 7
Engine S/M
O/M
O/M
TP-6805 8/15