Sears Craftsman 536.270300 Manual Del Usario página 33

SERVICE AND ADJUSTMENT
HOW TO ADJUST THE SPEED CONTROL LEVER
WARNING: Before you make an inspection, adjust- 8.
,_ ment, or repair to the unit, disconnect the wire to the
spark plug. Remove the wire from the spark plug to
prevent the engine from starting by accident. 7.
If a drive belt becomes worn or after the installation of a new drive
belt, the speed control lever may need an adjustment. When the
speed control lever is moved to the NEUTRAL position, the unit
must come to a complete stop. If the unit does not come to a
complete stop, adjust as follows.
1. Move the speed control lever to the NEUTRAL position.
2. Remove the hair pin from the adjuster nut (see Figure 37).
3. Disconnect the adjuster nut from the hydro actuator arm.
4.
If the unit was slowly moving forward when the speed control
lever was in the NEUTRAL position, then turn the adjuster nut
clockwise (forward) one or two turns. This wil! decrease the
length of the speed control rod.
5.
If the unit was slowly moving rearward when the speed control
lever was in the NEUTRAL position, then turn the adjuster nut
counterclockwise (backward) one or two turns. This wi!! in-
crease the length of the speed control rod,
Assemble the adjuster nut to the hydro actuator arm and
secure with the hair pin.
Connect the wire to the spark plug. Start the engine and test
drive the unit. Make sure that the unit will come to a complete
stop when the speed control lever is put in the NEUTRAL posi-
tion.
Figure 37
HOW TO CHECK AND ADJUST THE CLUTCH
If the engine drive belt is loose, the clutch will slip when; (1) going
up a hill, (2) pulling a heavy load, or (3) the unit will not move forward.
Adjust the clutch as follows.
WARNING: Before you make an inspection, adjust-
,_ ment, or repair to the unit, disconnect the wire to the
spark plug. Remove the wire from the spark plug to
prevent the engine from starting by accident.
1. Remove the hair pin and washer from the adjustable nut
(Figure 38),
2. Turn the adjuster nut counterclockwise (forward) to increase
the movement of the pedal and tighten the belt,
3. Assemble the adjustable nut and fasten with the washer and
cotter pin.
4.
Connect the wire to the spark plug. Start the engine and test
drive the unit. Make sure that the clutch does not slip or that the
belt does not slip.
5. If the belt still slips after the clutch has been adjusted, then the
motion drive belt is worn or damaged and must be replaced.
See "How To Replace The Motion Drive Belts".
Figure 38
F-050607L 33