Crown 4S - Air Cleaner Maintenance; Belt Tension and Alignment

5.2.3 AIR CLEANER MAINTENANCE
Each engine is equipped with lter to remove dust
41
and dirt from entering the air intake. To clean
the lter, follow this procedure:
1. Read the engine manual supplied with the
machine.
2. Unlatch and open the hood.
3. Remove the lter cover.
4. Remove lter and shake out.
5. Wash in a lter cleaning detergent if
heavily caked with dirt. Allow time to dry
before re-installing.
6. Replace lter after washing 5 times.
7. Install clean lter and secure cover.
Machine is shown with engine hood open
for illustrative purposes only. Never oper-
ate with hood open.
WARNING
Fig. 32 AIR CLEANER
5.2.4 BELT TENSION AND ALIGNMENT
A drive belt and pulley system transmits power from the
motor or engine to the gearbox for rotating the
mixing elements. A clutch lever through an over
center linkage swings the gearbox and pulley over
to tighten and engage the drive. The belt tension
must be properly set when the clutch is engaged
to prevent slipping and the pulleys aligned to pre-
vent belt wear. To set the tension and alignment,
follow this procedure:
1. Unlatch and open hood.
2. Disable power source by unplugging power
cord or disconnecting spark plug wire.
3. Remove the pins on each end of the linkage
arm.
4. Lengthen or shorten linkage arm length by
turning yokes on the threaded rod.
5. Repin linkage arm.
6. Engage clutch. There should be a denite
feeling when the clutch linkage goes over
center. If not readjust linkage.
7. The belt is properly tensioned when the mid-
span deects 1/4 inch (6 mm) when pushed
on with a 10 lb force.
8. Align the pulleys by loosening the motor or
engine mounting bolts.
9. Slide or tap the power unit into position to
align the pulleys.
10. Tighten power unit mounting bolts to their
specied torque.
11. Close and secure the hood.
Fig. 33 BELT TENSION AND ALIGNMENT
Clutch Linkage (Typical)
Clutch Engaged
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