Onan CCK User Manual

starting
Push the start-stop switch to the start position.
Release the switch when engine starts. If engine fails
to start, inhibitor oil used at the factory may have
fouled the spark plugs. Remove the plugs, clean in a
suitable solvent, dry thoroughly and re-install. Heavy
exhaust smoke when the engine is first started is
normal and caused by the inhibitor oil.
CONTROL FUSES
A 5 amp. 32 volt fuse (F2) is connected in the ignition circuit of the
control. If unit cranks but fails to start when switch SI is pushed,
ch»*ck fuse F2. It remote battery condition meter does not operate.
< h« c k fuse FI.
STOPPING
Push the start-stop switch to the stop position and
hold until unit stops completely.
BREAK-IN PROCEDURE
Controlled break-in with the proper oil and a con¬
scientiously applied maintenance program will help
to assure satisfactory service from yourOnan electric
generating set. Break-in as follows:
1. O n e half hour at 1/2 load (with one air conditioner
only).
2 One half hour ai3/4 load (with one air conditioner
and approximately 1000 watts additional load).
3. Change crankcase oil after the first 50 hours of
operation.
APPLYING LOAD
If practical, allow set to warm up before connecting a
heavy load. Continuous generator overloading may
cause high operating temperatures that can damage
the windings. Keep the load within nameplate rating.
VOLTAGE SELECTION
Voltage selection on reconnectible single-phase
generators is for use as 120/240 volts, 3 wire; or 120
volts, 2 wire. Use the connection for two-wire service
when one load exceeds one half the rated capacity.
Balance the load when connecting for three wire
service. Current for any one output lead must not
exceed nameplate rating. When two or more single¬
phase circuits are available, divide the load equally
between them. See Figure 6.
LOAD CONNECTIONS
1. Generator set load wires Ml, M2, M3 and M4
terminate within the junction box. Connect and
join wires within junction box in an approved
manner for desired voltage code. See Figure 6.
2. Wires must be adequate size, properly insulated'
and supported.
3. Mount switches and controls securely to prevent
damage from vibration and road shocks. All
switches must be vibration proof to prevent
accidental opening or closing while the vehic e is
in motion.
4. A ll wiring must meet applicable local electrical
codes. Have a qualified electrician install ano
inspect the wiring.
EXERCISE
Infrequent use results in hard starting. Operate the
generator set one 30-minute period each week. Run
longer if battery needs charging. Exercising for one
long period each week is better than several short
periods.
BATTERY CHARGING
The battery charge rate is automatically controlled by
a solid-state voltage regulator. The high charge rate
was set at the factory for average operating con¬
ditions.
HIGH OPERATING TEMPERATURES
1. See that nothing obstructs air flow to and from the
set.
2. Keep cooling fins clean. Air housing should be
properly installed and undamaged.
3. Keep ignition timing properly adjusted.
LOW OPERATING TEMPERA’’ URES
1. Use correct SAE oil for tempera e conditions.
Change oil only when engine is warm. If an
unexpected temperature drop causes an
emergency, move vehicle to a warm location.
2. Use fresh gasoline. Protect against moisture
condensation. Below 0°F (-18°C), adjust car¬
buretor main jet for a slightly richer fuel mixture.
3. Keep ignition system clean, properly adjusted
and batteries in a well charged condition.
4. Partially restrict cool airflow, but use care to avoid
overheating.
OPERATION IN DUST AND DIRT
1. Keep unit clean. Keep cooling surfaces clean.
2. Service air cleaner as frequently as necessary.
3. Change crankcase oil every 50 operating hours.
4. Keep oil and gasoline in dust-tight containers.
5. Keep governor linkage clean.
6. Clean generator brushes, slip rings, and com¬
mutator, do not remove normal dark brown film.
Do not polish.
HIGH ALTITUDES
For operation at altitudes of 2500 feet (775 m) above
sea level, close carburetor main jet adjustment slight¬
ly to maintain proper air-to-fue! ratio (refer to the
ADJUSTMENTS section). Maximum power will be
reduced approximately four percent for each 1000
feet (310 m) above sea level after the first 1000 feet.

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)