Table of Contents
Advertisement
7.
Make sure the belt is placed correctly on all drive belt supports located in the
beam.
8.
Make sure the belt is not twisted and that it is properly located on each pulley.
9.
Repeat steps 4 through 8 for the lower belt.
10.
Adjust the upper belt tension such that the belt is correctly
11.
tensioned using the belt tension tool.
12.
Adjust the lower belt tension so that the belt hangs loose between the beam
belt supports. Check head alignment. The belt will need Adjusting at the drive
pulley located in the cable end support to approximately align the heads.
13.
Complete belt tensioning and head alignment
14.
Reinstall the beam covers
15.
Run a profile correction for the sensors that need it.
Replacing belt idler pulleys
This procedure is for replacing the belt idler pulleys. They need to be replaced when:
The bearing starts turning on the shaft.
The bearing is noisy.
The bearing is leaking grease.
The pulley is wobbling.
The pulley edge guides are worn.
It is usually best to replace all of the idler pulleys if one pulley has gone bad. If all of the
pulleys have the same number of operating hours on them and they are more than two
years old, replace them all. Check the scanner maintenance logbook for pulley
replacement history.
There are four idler pulleys on the cable end of the scanner. There are also two idler
pulleys on the beams at the distant end. For more details and an illustration showing the
head drive system as a whole, refer to the assembly drawings.
To replace the idler pulleys:
Figure 25 Pulley location on scanner
Advertisement
Table of Contents
