Kohler 17RES Manual page 29

Problem Possible Cause
Engine overloaded
Stops
suddenly,
continued
Magnetic pickup
connections
Ignition module
Flash relay (K3) on
controller
Loss of generator
output voltage to
controller
Overheats Inadequate cooling
Fuel mixture
adjustment
incorrect
Exhaust system
Noisy
operation leaks
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
Operates Air cleaner clogged
erratically
Spark plug(s)
Spark plug wire(s)
DSAM leads
incorrectly
connected or
disconnected
Fuel line restriction
Fuel mixture
adjustment
incorrect
* ADC-RES controller only. The DC-RET controller settings cannot be adjusted in the field.
W/D = Wiring Diagram(s) (Section 7)
I/M = Generator Set Installation Manual
TP-6519 8/17
Test
Reduce electrical load and check
operation.
Check for loose connections to
the mag pickup.
Test the ignition system according
to the instructions in the engine
service manual.
Check fuse F2.
Check flash LED 1 on controller.
Check connections at P15 plug.
Check continuity of AC sensing
leads 11 and 44 (1 ph) or V7, V8,
and V9 (3 ph).
See Section 5 for alternator test
procedures.
Inspect engine and enclosure for
air intake obstructions.
Use an oxygen sensor to check
the fuel mixture.
Check silencer and connections
for leaks.
See "Generator set operates
erratically," 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.
S/S = Generator Set Specification Sheet
Engine S/M = Engine Service Manual
Corrective Action
Unplug some lights or appliances
connected to the generator set.
Tighten connections to the mag
pickup. Replace damaged wiring.
Service the ignition system
according to the instructions in the
engine service manual.
Replace fuse F2.
If LED1 indicates power to the
relay but the relay does not
operate, replace controller board.
Tighten connections at P15 plug.
Replace wiring if damaged.
Repair or replace components if
necessary, as indicated by tests in
Section 5.
Clear any air intake obstructions.
Readjust fuel mixture.
Note: Adjusting the fuel mixture
may void the emission
certification.
Replace gaskets and exhaust
system components as
necessary.
See "Generator set operates
erratically," 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.
O/M = Generator Set Operation Manual
Section 3 Troubleshooting
Reference
—
Section 5.9
Engine S/M
Section 5.13.2
Section 4.6
Section 7
Section 5.3
Section 5
O/M
Section 5.12
—
—
Section 6
—
—
Section 6
Engine S/M
O/M
O/M
Engine S/M
Section 5.12.4
Section 5.12.2
Section 5.12
29