Onan CCKA User Manual

The safety screen used to cover rents must be
1/4-Inch (6.35 mm) mesh or larger to permit
sufficient air flow. All screens and guards must comply with
industrial safety standards that apply to hazardous moving parts to
avoid personal injury.
vibration. Shield the line if it passes through a
combustible wall or partition. If turns are necessary,
use sweeping type {long radius) elbows. Increase one
pipe size {from manifold outlet size) for each ad¬
ditional ten feet in length. Locate the outlet away from
the air intake.
Provide a short canvas section between the engine air outlet and
the external duct or opening, to absorb vibration. If operation in
cold weather is likely, installing a shutter in the air outlet is
advisable. Cold weather can cause overcooling if air flow is not
regulated.
FIGURE 3. VACU-FLO SCROLL POSITIONS
Should a vacu-flo engine chronically overheat, the
most likely sources of the problem are: >
1. Air inlet is obstructed or too small to allow proper
ventilation.
2. Air discharge opening is partially blocked by
external ducts or exhaust systems.
3. Recirculation of heated air into fresh air inlet.
EXHAUST SYSTEM
Inspect the exhaust system regularly. Locate leaks in
muffler and piping while the engine is operating.
Repair all leaks immediately after they are detected
for personnel safety.
CARBURETOR AIR INTAKE
Proper engine efficiency depends upon a supply of
fresh air to the carburetor. Under special conditions,
it may be necessary to move the air cleaner off the
engine, using a iongerconnectionhoseas necessary.
For extremely dusty or dirty conditions, install a
special heavy duty air cleaner.
MOUNTING
There are several acceptable methods of mounting
the engine. Among factors to be considered are:
location, method of coupling the engine to the load,
type of foundation or support, etc. The engine should
be mounted on a level surface if possible. Maximum
operation angle is 15 degrees sideways, 30 degrees
front to rear tilt. If the engine is to operate at an angle,
be sure to re-mark the oil level indicator to compen¬
sate for the tilt.
The type of installation can affect the life of the
engine, the cost of operation and the frequency of
necessary service. Plan the installation carefully to
ensure the best performance.
Because of the great variety of uses, and the many
variations of the engine, these installation instruc¬
tions are typical or general in nature. Use the
installation recommendations given as a general
guide.
CHECKING FOR FUEL AT CARBURETOR
WARNING I Do no * pewit any flame, cigarette,
or other igniter near the fuel system.
Gasoline is highly flammable and potentially explo¬
sive in confined spaces.
warning | Inhalation of exhaust gases might
1 result in serious personal injury or
death. Be sure deadly exhaust gas is piped outside
and away from windows, doors or other inlets to
building.
Use a length of flexible tubing between the engine
exhaust outlet and any rigid piping to absorb engine
1. Look for one or more shutoff devices.
2. Disconnect fuel line at carburetor.
3. If fuel is present at carburetor, check ignition
system or other engine malfunctions.
4. Reconnect fuel line.
CONNECTING TO THE LOAD
The dimensions of various powertakeoff shafts are as
follows.

Onan CCKA Specifications

General

Cylinders	2
Ignition System	Battery ignition
Engine Type	4-cycle
Bore	3.25 in (82.55 mm)
Power Output	Varies with model. e.g., 6.5 kW (CCK)
Horsepower	10 hp
Starter	Electric