Onan CCK Service Manual

V
CCKA Tractor Governor Adjustment
Low Speed Adjustment: A tachometer (electric or
mechanical) is required to accurately set the gover¬
nor speed.
1. Use a screwdriverto accurately adjust the throttle
stop screw (A) to 1000 rpm when carburetor
throttle is held closed (Figure 13b).
2. Readjust the carburetor idle mixture (B) so
engine runs smoothly.
3. Check the adjustment made in Step 1 and read¬
just the minimum idle speed if necessary.
Cleaning: Inspect the governor linkage, springs, etc.
for binding or wear. Clean often in dusty conditions.
Blow dust and dirt from linkage with compressed air.
Use an approved solvent and apply with a soft brush
to remove excessive grease or oil.
CCKB TRACTOR GOVERNOR
if the governor requires readjustment, observe the
following:
Low Speed Adjustment: A tachometer is required to
accurately set the governor speed when the throttle is
held closed (Figure 13c).
High Speed Adjustment
1. Move the engine speed control all the way ahead
to the "fast" position.
2. Turn the adjustment nuts (C) clockwise or
counterclockwise as required so engine runs
between 3800 and 3850 rpm.
PcAUTioiI^l Engine was not designed to
operate at speed greater than
3950 rpm.
3. Tighten the two nuts against each other so they
will stay in position.
4. Adjust the nuts so the engine wit! run at 1200 rpm
in the “slow” position. Toincreasespeed,tumthe
nuts clockwise; to decrease speed, turn coun¬
terclockwise.
5. Turn the two nuts securely against each other so
they will stay in position.
1. Use a screwdriver to adjust the low speed stop
screw so the engine runs at 1200 (+100) rpm
when the throttle is heid closed (Figure 13c).
2. Readjust the carburetor idle mixture so the
engine runs smoothly.
3. Check adjustment made in Step 1 and readjust
minimum idle speed if necessary.
High Speed and Cable Adjustment
1. Move engine speed control on tractor to
position.
2. With speed control in "fast” position, the speed
control cable should be holding governor swivel
against stop on governor base plate.
3. If speed adjustment is necessary, remove cable
housing 1/8 inch (3.16 mm) from base plate
mounting edge and using a 90° pliers reinstall
cable clip.
| CAUTlON^l Bending the base plate will
cause misalignment between
swivel plate and the edge of base plate.
FIGURE 13b. TRACTOR GOVERNOR ADJUSTMENT
IS

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)