Onan CCK Service Manual

Special Equipment
ROCKFORD CLUTCH
With the engine stopped, the dutch released
(disengaged lever position) and the top plate remov¬
ed from the clutch housing, turn the adjusting ring (2)
inward (clockwise facing power take-off shaft) until
the toggles cannot be locked over center (Figure 81).
Locking screw (1) may remain tightened.
Loosen the adjusting ring a notch or two at a time until
the toggles can be locked over with a very firm pull on
the engaging lever (3).
Start the engine and work the engaging lever back
and forth several times, allowing the clutch to pick up
load but not to lock over center. This is especially
important with a new clutch plate as it knocks off high
spots and fuzz.
Stop the engine and tighten the adjusting ring two or
three notches for final adjustment
Be sure the toggles lock over center at final adjustment with a firm
pull on the engaging lever (clutch engaged).
OPTIONAL REDUCTION GEAR DRIVE
Drain the gear box after the first 100 hours of
operation and refill with fresh lubricant (SAE 50 motor
oil or SAE 90 mineral gear oil). Repeat this procedure
every six months thereafter or every 100 hours,
whichever is first. Do not use lubricants commonly
known as extreme pressure lubricants, hypoid
lubricants, etc.
Maintain the proper oil level between changes. Over¬
filling will cause foaming, which can lead to an oil leak
due to overheating. Remove the filler plug on top of
the case and the oil level plug from the face of thegear
case i figure 82). Fill the case until the oil just begins
to flow from the oil level plug hole. Gear box holds 1/2
pint U.S. Measure. Replace both plugs.
/
FIGURE 81. ROCKFORD CLUTCH
izLX
LEVEL OF HOLE
FIGURE 82. OPTIONAL REDUCTION GEAR DRIVE
84

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)