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Part No 840245 16 Form No F060711D
MV650SPH Self-Propelled Vacuum Owner’s Manual
cable adjustment
4"
from
handle
Tighten
Loosen
Procedure:
1. Wait for engine to cool and DISCONNECT SPARK PLUG!
2. Engage the clutch lever then pull the unit back until it stops freewheeling. The clutch lever should engage
around 2 5/16” of travel or 4 inches from tip of lever to handle.
3. Tighten or loosen cable adjuster nut next to the clutch lever until drive engages at 4” from handle.
4. Holding the adjuster nut in place with one wrench tighten cable lock nut firmly.
5. Readjust as needed.
6. RECONNECT SPARK PLUG!
7. Test run unit to insure proper operation after this or any other maintenance procedure.
8. If clutch still will not engage at 4” from handle, remove guard retaining screws and guard.
9. Measure the amount of spring stretch. Spring should measure 1 1/8” when engaged (Lever 4” from handle).
10. Release clutch lever and then move it to engagement position again and hold it, check the spring length to
assure it stayed in adjustment.
11. Re-install guard and fasteners.
DRIVE BELT REMOVAL AND REPLACEMENT
READ all safety instructions before servicing unit.
DISCONNECT spark plug wire before servicing unit.
Tools required:
- 3/8” drive ratchet
- 3/8” and ½” socket wrenches
- 3/8” and 5/16” wrench
Procedure:
1. Wait for engine to cool completely and DISCONNECT SPARK PLUG.
2. Remove guard fasteners and guard.
3. Remove throttle control cable from engine.
4. Unplug wiring harness wire at engine.
5. Tilt transmission input pulley toward engine and remove the belt from it upward.
6. Remove all six screws fastening the engine base plate to the housing.
7. Lift engine assembly from housing.
8. Slide belt inward under the engine and off downward around impeller.
9. Install new belt in reverse order of belt removal.
10. Note: before placing new belt on transmission pulley look under the engine to insure the belt is properly in
the groove of the engine pulley.
11. Install engine assembly in reverse order of removal.
12. RECONNECT THE SPARK PLUG
INCREASE
2 1/16”
1 1/8"