TP-6735 7/1732 Section 3 Troubleshooting
Problem ReferenceCorrective ActionTestPossible Cause
Noisy
operation
Exhaust system
leaks
Check silencer and connections
for leaks.
Replace gaskets and exhaust
system components as
necessary.
—
Engine not running
smoothly
See “Erratic operation,” this table. See “Erratic operation,” this table. —
Broken or damaged
vibromount(s)
Inspect vibromounts. Replace as necessary. Section 6
Loose or vibrating
sheet
metal/housing
Check for loose screws and
rivets.
Retighten screws, replace rivets.
—
Exhaust piping or
air inlets/outlets not
securely installed
Inspect for loose parts. Secure loose parts as necessary. —
Excessive
engine/generator
vibration
Check rotor, crankshaft, bearing,
etc. (disassembly of engine
and/or alternator may be
required).
Check, rotor, crankshaft, bearing,
etc. (disassembly of engine
and/or alternator may be
required).
Section 6
Engine S/M
Erratic
operation
Air cleaner clogged Check air filter element. Replace element. O/M
Spark plug(s) Check spark plug condition and
gap.
Replace or regap plugs. O/M
Spark plug wire(s) Check spark plug connections
and wires.
Tighten connections. Replace
damaged spark plug wires.
Engine S/M
DSAM leads
incorrectly
connected or
disconnected
Check DSAM/DSAI lead
connection.
Connect for natural gas.
Disconnect for LP.
Section 5.11.2
Fuel line restriction Check fuel lines.
Check fuel pipe size.
Clear restricted fuel lines.
Contact fuel supplier to install
larger diameter pipe.
Section 5.11.3
Fuel mixture
adjustment
incorrect
Use oxygen sensor to check fuel
mixture.
Adjust fuel mixture. Section 5.11
Magnetic pickup
connections
Check for loose connections to
the mag pickup.
Tighten mag pickup connections.
Replace damaged wiring.
Section 5.9
Governor
adjustment
incorrect
Check governor operation.
Check controller engine speed
(frequency) adjustment. *
Adjust governor.
Adjust controller engine speed. *
Section 5.9
Section4.10and
Installation Man.
Ignition system Test ignition system according to
instructions in engine service
manual.
Service ignition system according
to instructions in engine service
manual.
Engine S/M
Inadequate cooling
(hot engine only)
Check air inlet and outlet. Clear air inlet and outlet. —
Other engine
service required
See engine service manual. Service according to instructions
in engine service manual.
Engine S/M
Light
flicker
Voltage stability
(gain) setting
Check the voltage stability (gain)
setting using the RDC controller. *
Adjust the voltage stability (gain)
setting using the RDC controller. *
Section 4.10.4
W/D = Wiring Diagram(s) (Section 7) S/S = Generator Set Specification Sheet O/M = Generator Set Operation Manual
I/M = Generator Set Installation Manual Engine S/M = Engine Service 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.
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