Detroit Diesel MBE 4000 Service Manual page 488

8.1 DRIVE BELTS
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1. Fit the fan drive belt on the belt pulleys. Be careful not to kink, stretch, or otherwise
damage the belt. For correct routing, see Figure 8-5. Do not fit the belt onto the tensioner
pulley yet.
1. Tensioner Pulley
2. Idler Pulley #1
3. Fan Pulley
Figure 8-5
2. Release the tension on the fan belt. See Figure 8-1.
3. Make sure the belt is correctly positioned for the tensioner pulley.
4. Restore the tension on the belt.
[a] Lower the socket wrench to return the tensioner pulley to its original position.
[b] Remove the socket-wrench bit from the pulley bolt.
5. Check the fan belt to make sure it is in the correct position and properly aligned on the
pulleys.
6. Connect the batteries.
8.1.5 Air Conditioner Compressor Belt Removal
Install the air conditioner (A/C) compressor belt as follows:
NOTE:
The A/C compressor belt is installed only on vehicles with air conditioning.
8-8
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Fan Belt Routing
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4. Idler Pulley #2
5. Fan Belt
6. Crankshaft Pulley
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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All information subject to change without notice.
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