3. Remove the nut and washers at the bottom of the belt channel that secure the heater door opening rod to
the bracket and remove the assembly.
5.4.3.2 Replacing Rollers and Tension Springs
Refer to “Figure 5-29 Rollers and Tensioning Spring”.
Lift rail
Tensioning plate
Roller tensioning spring
Center rollers
Bearing
Roller mounting screw
Figure 5-29 Rollers and Tensioning Spring
1. The rollers can be removed one at a time by removing the screw (4mm hex key) at their hub and pulling o
the roller and bearing. When reinstalling, torque the screws to 45 in. lbs (reference).
2. To replace the roller tensioning spring, rst use needle nose pliers to pull the tension spring o the roll pin
at the end of the lift rail. Then take o the 2 center rollers and slide the tensioning plate out of the lift rail.
Remove the old spring.
3. Reinstall the 2 center rollers. Use a hex key in the center access slot to lift the tensioning plate up so that
you can screw the rollers into the holes in the plate. Torque rollers screws to 45 inch lbs (reference).
4. Using pliers, pull the tensioning spring up onto the roll pin at the end of the rail.
© 2001 by Datex-Ohmeda, Inc.. All rights reserved. 6600-0343-000 104 97
Chapter 5: Repair Procedures
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