192277 - Micron Technical Reference Volume 3 - 第40页
RAPID TRANSIT CONVEYOR (RTC) MODULE REPLACEMENT PROCEDURES 22.28 Technical Reference Manual Chapter Issue 4, Aug 14 1 1. Using a 3mm Allen key , remove the three screws that secure the belt clamp to the bearing block and…
RAPID TRANSIT CONVEYOR (RTC) MODULE
REPLACEMENT PROCEDURES
Chapter Issue 4, Aug 14 Technical Reference Manual 22.27
13. Perform the Rear Rail Parallelism check (Adjustments and Settings section
of this chapter refers) to ensure no teeth were jumped during the belt
change.
Inroad/Outroad
Transport Belts
The rear inroad and outroad transport belts are 3mm in diameter. The front
inroad and outroad transport belts are 2mm in diameter.
Ensure the correct diameter transport belts are used when replacement is
required.
Transport
Mechanism Drive
Belt
Use the following procedure to replace the transport mechanism drive belt:
1. In Diagnostics select Rapid Transit Conveyor module.
2. Home the vane stepper motor.
3. Home the transport mechanism.
4. Power down the machine.
5. Using a 2mm Allen key, remove the four screws that secure the board stop
vane to the bearing block and remove the vane.
6. Remove the two screws that secure the front outroad conveyor to the
transport mechanism and remove the conveyor.
7. Disconnect the vane stepper motor connection.
8. Using a flat bladed screwdriver, remove the two screws that secure the drag
chain to the belt clamp.
9. Manually move the transport mechanism to align the three belt clamp
securing screws with the cut-out in the extrusion.
10. Using a 10mm spanner, release the belt tension by loosening the transport
mechanism pulley securing nut on the inroad side of the transport mecha-
nism.
Plan View on RTC System
Drag Chain Securing Screw Holes
Belt Clamp
Belt Clamp Securing Screws
Vane Stepper
Motor Connection
Transport Mechanism
Pulley Securing Nut
RAPID TRANSIT CONVEYOR (RTC) MODULE
REPLACEMENT PROCEDURES
22.28 Technical Reference Manual Chapter Issue 4, Aug 14
11. Using a 3mm Allen key, remove the three screws that secure the belt clamp
to the bearing block and remove the belt clamp.
12. Remove the drive belt from the transport mechanism.
13. Fit the new drive belt terminating both ends at the top of the bearing block.
14. When placing the belt in place on the bearing block, ensure that any slack
is taken up without applying any tension to the belt.
15. Refit the belt clamp.
16. Refit the drag chain to the belt clamp.
17. Connect the vane stepper motor.
18. Refit the board stop vane.
19. Refit the front outroad conveyor.
20. Using a piece of wire between the pulley and the transport mechanism
extrusion, engage a forcemeter on the transport mechanism pulley on the
inroad side of the transport mechanism. Apply a horizontal force of 24kg.
21. Maintaining this force, tighten the securing nut.
22. Carry out the front conveyor alignment for the outroad conveyor, Front
Conveyor Alignment - Adjustments and Settings section of this chapter
refers.
RAPID TRANSIT CONVEYOR (RTC) MODULE
CALIBRATIONS
Chapter Issue 4, Aug 14 Technical Reference Manual 22.29
CALIBRATIONS
Conveyor Transport Belt Speed
WARNING
LETHAL VOLTAGE. DANGEROUS VOLTAGES EXIST IN THIS EQUIPMENT.
ENSURE ALL ELECTRONIC COVERS AND MAIN MACHINE COVERS ARE
FITTED BEFORE OPERATING THIS EQUIPMENT.
The inroad and outroad conveyor transport belts are driven independently by
four variable speed motors. Inevitably one motor drives faster than the other
motor. It is necessary to calibrate these motors so they drive at the same speed.
Each belt motor speed is controlled by a separate speed controller module
situated on the right hand RTC rail support beam.
The belt speed is measured using a tachometer on the transport belt pulley and
adjusted using the potentiometer on the speed controller module.
Calibration
Procedure
1. In Diagnostics, select Rapid Transit Conveyor.
2. Select Toggle Inroad Belts to start the belts on the inroad conveyor.
3. Select Toggle Outroad Belts to start the belts on the outroad conveyor.
View on Right Hand Side of Machine
Transport Belt Speed Controllers