Decrease Spread; Governor Removal And Installation; Low Speed; No-Load Surge - Ford VSG-411 Service Manual

6-03 Governor
6-03
DECREASESPREAD
1. With the engine under no-load at maximum governed speed,
loosen the locknuts and adjust the screw to move the spring
towards the lever hub. Tighten the locknuts.
2. Recheck governor operation under load and no-load
conditions.
3. Readjust the governor high-speed stop screw to maintain the
correct high-speed under load.
LOW SPEED
1. Attach a tachometer and move the hand throttle or variable
speed lever to the closed position.
2. Adjust the carburetor idle speed screw to obtain the desired
idle speed.
NO-LOAD SURGE
The no-load surge adjustment is set at the factory and rarely
requires adjustment. If necessary, this adjustment can be used to
prevent hunting and surging and no-load speeds, provided the
r-pm spread adjustment is set properly.
1. Make the adjustment with the tachometer installed. Increase
the engine speed with the hand throttle or variable speed lever
to 75 rpm lower than the maximum no-load desired control
rpm*
2. Loosen the no-load surge adjustment screw locknut (Figure 3)
and turn the screw inward until the rpm increases to the desired
control rpm.
CAUTION: Do not turn the screw in all the way. It will
interfere with proper governor operation and prevent the
governor from returning the engine to idle speed.
3. Readjust the governor high-speed stop screw to maintain the
correct high-speed under load.
1.
2.
3.
4.
5.
REMOVAL AND INSTALLATION
Disconnect hand throttle connection at governor variable
REMOVAL
speed lever.
Disconnect governor to carburetor throttle control rod at
governor.
Loosen governor mounting nuts and bolts and move governor
towards engine to loosen drive belt.
Remove drive belt from governor pulley.
Remove governor to bracket attaching bolts and remove
1.
2.
governor.
3.
4.
Position the governor to the mounting bracket and install the
attching bolts snugly.
INSTALLATION
Position drive belt to governor pulley and move the governor
away from the engine to tighten the belt. Tighten the attaching
bolts.
Adjust the belt tension.
Connect the governor to carburetor throttle control rod. Adjust
the rod as described previously.
Connect hand throttle cable to governor variable speed lever.
Adjust cable as necessary to permit operation from idle to
maximum speed.
5.