Y-Axis Belt Drive Assembly (Phaser 850 Printer); Removing The Y-Axis Belt Drive Assembly (Phaser 850 Printer) - Tektronix PHASER 840 Service Manual

Y-axis belt drive assembly (Phaser 850 printer)

1. Remove the right cover.
2.
Disconnect the wiring harness leading from the front panel to the right
I/O board passing beside the Y-axis belt drive assembly.
3.
Remove the drum fan. (Note the fan orientation, it blows into the drum.)
Caution Never loosen or remove the three screws securing the assembly parts
together. Also, improperly removing the tension spring can cause the
tension bracket to flip off forcefully, causing injury.
4. Insert a flatblade screwdriver through the tension bracket as a "holder."
Anchor the screwdriver tip against the Y-axis belt drive assembly.
5. Remove the tension bracket's mounting screw. Using the screwdriver
as a lever, slowly tilt the bracket up and away from the frame.
6. Remove the three mounting screws securing the Y-axis belt drive
assembly to the engine frame. Remove the assembly with its two belts.
Tension
bracket

Removing the Y-axis belt drive assembly (Phaser 850 printer)

7.
Reverse these steps to reinstall the Y-axis drive assembly.
Y-axis belt
assembly
Never
remove
these
screws
Mounting
screws
Service Guide
840-4-79-a
147