Engine Maintenance
123
Clutch (SmartPower Units)
Periodically inspect the clutch for worn bearings,
worn friction shoes, shoe support bushings, or
isolator drive bushings. To inspect the clutch:
1. Loosen the compressor drive belt idler
mounting bolt.
2. Turn the compressor drive belt idler adjuster
as needed to loosen the belt enough to allow
you to remove the belt from the electric motor
pulley.
3. Support the compressor and unbolt the
compressor mounting flange from the engine
(leave the refrigeration lines connected).
4. Slide the compressor assembly away from the
engine and turn the compressor to provide
better access to the clutch.
NOTE: The refrigeration lines may be
removed from the compressor to allow more
movement of the compressor for better access
to the clutch.
5. Remove the compressor drive belt.
6. Remove the clutch mounting bolt and special
washer. (Use the Spanner Wrench and the
appropriate hex driver or an air impact driver
with the appropriate hex driver.)
7. Using the Clutch Puller to remove the clutch
by threading the puller into the end of the
clutch. Apply torque while tapping the clutch
body until the clutch loosens form the shaft.
8. Remove the key from the compressor
crankshaft and inspect the key and the
crankshaft for wear, burrs, or damage.
1
2
3
4
5
6
7
8
9
1.
Clutch Drum/Pulley
6.
Rotor Drive Plate (Hub)
2.
Retaining Ring
7.
Isolator Drive Bushing
3.
Shoulder Bolt
8.
Bearing
4.
Shoe Carrier
9.
Retaining Ring
5.
Shoe Assembly
Figure 204: Clutch Assembly
