Cub Cadet 4 x 2 Big Country - Poly Bed & Steel Bed - Manual (Page 20)

Poly Bed 4 X 2 Drive System
16
5.29. Hold the throttle arm against the stop screw.
Adjust the stop screw to set the engine speed to
1,100 RPM + 50.
5.30. Release the throttle arm, then set the governed
idle speed to 1,200 RPM + 50. See Figure 5.30.
5.31. The idle speed is controlled by the phillips head
screw on the governor control panel.
See Figure 5.31.
NOTE: If the idle speed is set too high, the driv-
ing pulley will begin to apply force to the belt.
This will turn the input pulley of the transaxle
with enough force to cause gear clash when for-
ward or reverse gear are engaged, and it may
cause difficulty in disengaging drive gears.
NOTE: If the idle speed is set too low, the engine
will stall at idle. If warm idle speed has fallen
with time, check the condition of engine tune-up
factors (compression, valve lash, spark plug, air
filter) before making adjustment.
5.32. Gradually increase the speed of the engine
(manually, not through adjustment), and observe
the point where the outer sheave of the driving
pulley moves in to compress against the belt.
See Figure 5.32.
5.33. The belt should be squeezed between the
sheaves at 1,400 + 100 RPM.
5.34. By 3,300 + 100 RPM the outer sheave of the
driving pulley should be fully extended.
See Figure 5.34.
Figure 5.30
Figure 5.31
Set governed idle here
Figure 5.32
Driving clutch
at start of
travel
Figure 5.34
Driving clutch
fully engaged