Onan CCK User Manual

Do NOT use maintenance free, unvented
batteries with this generator set. Malfunction
of the starting-charging system can produce high charging
currents, causing excessive gassing. An unvented battery can build
up sufficient pressure to explode.
Grounding: Generator must be effectively bonded to
recreational vehicle chassis.
Vehicle chassis (frame) ground and the battery and generator set
ground should all be electrically connected to be at 0 ground
potential. All Onan units are designed for negative ground
application.
Mount the battery in a separate compartment
from the set or any spark-producing device to
prevent fire or explosion.
VENTILATION
The biggest enemy of electric generating sets in¬
stalled in motor homes is excessive heat. Make sure
the set’s air inlet and outlet are not plugged with dust,
dirt, bugs, leaves or anything that could restrict
cooling air.
Don’t use discharged cooling air for compart¬
ment heating since it could contain
poisonous exhaust gases.
Do not terminate exhaust under vehicle, as
carbon monoxide gas is poisonous. Direct
exhaust gases away from window and door openings.
I wad|ji||/; On all listed models with exhaust shielding
supplied with unit, shielding MUST be
property installed to prevent overheating of compartment walls or
the possibility of fire. Refer to appropriate installation guide for
each model for details.
DO NOT DISCONNECT BATTERY CABLES
FROM BATTERY WHILE GENERATOR SET
IS CRANKING OR RUNNING; SPARKS MAY CAUSE AN EXPLO¬
SION.
FIGURE 3. BATTERY AND GROUND CONNECTION
5

Onan CCK Specifications

General

Cylinders	2
Ignition System	Battery ignition
Fuel Type	Gasoline
Cooling System	Air-cooled
Fuel System	Carburetor
Starter	Electric
Governor	Mechanical
Max RPM	1800 RPM
Engine Type	4-cycle
Bore and Stroke	3.25 x 3.625 inches (82.55 x 92.08 mm)