Detroit Diesel MBE 4000 Service Manual page 492

8.1 DRIVE BELTS
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4. Remove the belt tensioner and tensioner pulley from the mounting pad on the cylinder
block.
8.1.8 Belt Tensioner Installation
Install the belt tensioner as follows:
1. Align the guide pins on the belt tensioner with the holes in the mounting pad.
2. Position the belt tensioner to the mounting pad and secure in place with the mounting
bolt. Tighten the bolt 50 N·m (37 lb·ft).
3. Release the belt tensioner to allow the belt to be installed. Refer to section 8.1.1.
4. Install the drive belt on the pulleys, as removed.
5. Restore the tension on the drive belt.
8.1.9 Idler Pulley Removal
Remove the idler pulley as follows:
NOTE:
This procedure works for all idler pulleys. To identify the correct pulley, see Figure 8-9.
1. Mounting Bolt
2. Main Drive Belt Idler Pulley
3. Coolant Pump Inlet Pipe
Figure 8-9
8-12
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Idler Pulleys
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4. Fan Idler Pulley #2
5. Fan Idler Pulley #1
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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All information subject to change without notice.
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