Cradle Belt Tension Adjustment

Prerequisites

Move the table to the proper height position where the cradle can be inserted into the Gantry bore.
Move the cradle to the mechanical OUT limit position by hand.
Remove power from Table by turning off "120VAC", "Axial Drive" and "HVDC" switches on the service switch panel.
Remove the following cover and components from the Table:
1. Top Cover R / L
2. Top Cover F
3. Cradle
4. Metal-Free Table Cover
5. Rail Cover Front (Left/Right)
Figure 1. Table Covers and Components Removal
Check the cradle belt tension:
1. Set the adjustment tool on the cradle belt as shown in Figure 2.
2. Verify that the flat point of the spindle is in narrow slit (see Figure 3).
  
  If not, perform the next step.
  
  Figure 2. Adjustment Tool Attachment
  
  Figure 3. Belt Tension Adjustment
Adjust the cradle belt tension:
1. Measure the distance 'D' (between the pulley and cradle motor).
2. Loosen 4 screws that fasten the cradle motor to the Table frame.
3. Slide the cradle motor toward the Gantry, to remove tension from the drive belt.
4. Loosen 4 screws that fasten the pulley to the Table frame.
5. Slide the pulley toward the Gantry, to remove tension from the cradle belt.
6. Adjust position of the pulley so that the flat point of the spindle is in the narrow slit (see Figure 3), and fix the pulley.
7. Adjust position of the cradle motor to meet the 'D' recorded at step a., and fix the cradle motor.
Restore the Table to original configuration.

Figure 4. Release Belt Tension