Onan CCK Series User Manual

86 SERVIC E DIA GNOSIS
POSSIBLE CAUSE REMEDY
NOISY BRUSHES
H:igh wica between bars. of Undercut mica.
commutator.
EXCESSIVE ARCING OF BRUSHES
Rough commutator or rings.
Turndown.
Duty commutator or rings •...
Clean.
Brushes not seliting properly.
Sand to a
goOd seat or reduce load
until worn tn.
Open
cucuitin arma.ture .•
Install a new armature.
Brqsh rig out of position. Line up properly.
SPARK PLUG FOULED IN SHORT PERIODS OF TIME ON GASOLWE
OPERATION
Wrong spark plug gap. (Spark Clean spark plugs and set at 0.025".
plug may be
set at 0.018" for
gaseous operation, but not
changed to
O. 025".when switching
over to gasoline operation.)
HARD STARTING, MISSING, POPPING, ERRATIC OPERATION ON
GASEOUS FUEL OPERATION
. Spark plug gap too wide. (Spark . Set sparl<:: plug gap at 0.018".
plug gap
set at 0.025" for gaS-
oline operation put not changed
... to 0.018" when switching over to
gaseous fuel operation. )

Onan CCK Series Specifications

General

Fuel Type	Gasoline
Fuel System	Carburetor
Frequency	60 Hz
RPM	1800 RPM
Starting System	Electric or Recoil
Starting Method	Electric or Recoil Start
Voltage	120/240V
Compression Ratio	6.5:1
Ignition System	Battery Ignition
Phase	Single-phase