Detroit Diesel MBE 4000 Service Manual page 489

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1. Disconnect the batteries.
2. Release the tension on the A/C compressor drive belt. See Figure 8-1.
[a] Place a socket wrench on the tensioner pulley bolt.
[b] Pull the socket wrench (swivel the tensioner pulley clockwise) to remove the tension
from the belt.
[c] Hold the tensioner pulley in this position for the next step.
3. Remove the drive belt from the A/C compressor pulley. Be careful not to kink, stretch, or
otherwise damage the belt. See Figure 8-6.
1. Crankshaft Pulley
2. A/C Compressor Belt Tensioner
Figure 8-6
4. Release the tensioner pulley.
5. Inspect the A/C compressor belt for nicks, wear, or other damage. Replace the belt
if necessary.
6. Inspect the following parts and replace any that are damaged or worn:
vibration damper
A/C compressor pulley
belt tensioner
tensioner pulley
idler pulley
All information subject to change without notice.
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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Air Conditioner Compressor Belt Removal
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MBE 4000 SERVICE MANUAL
3. A/C Compressor Belt
4. A/C Compressor Pulley
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8-9
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