03217917-01-01E By DEK Technical Reference Manual Vol 1_enPDFA.pdf - 第281页

17 CAMERA SYSTEM MODULE 17.4 REPLACEMENT PROCEDURES TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 281 1 1 3 10 ► Using a tension meter (Part No. 190279), check the timing belt tension either side of the cable clamp i…

17 CAMERA SYSTEM MODULE

17.4 REPLACEMENT PROCEDURES

280 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019

► Remove the timing belt (3) and discard.

► Route the replacement timing belt (3) around the camera Y motor pulley (6) and the idle pulley

(7).

► Engage the two ends of the replacement timing belt (3) equally into the timing belt clamp (8).

Tighten the timing belt clamp screws (5) sufficiently to allow belt movement. Ensure the timing

belt (3) is straight between the two pulleys and the timing belt clamp (8).

► Fully tighten the clamp screws (5).

► Manually position the timing belt clamp (8) on the camera Y axis timing belt so that the dis-

tance X1 (idle pulley (7) to timing belt clamp (8)) is equal to the distance X2 (timing belt clamp

(8) to motor pulley (6)).

7 8 6

► Using a suitable cable tie, engage a forcemeter across the motor pulley. Apply a horizontal

force of 24kg to the belt. Maintaining this force, tighten the two securing screws (4).

24.0 kg

► Remove the forcemeter. Do not remove the cable tie as further adjustment may be necessary.

► Ensure that the belt clamp is midway between the two pulleys.

17 CAMERA SYSTEM MODULE

17.4 REPLACEMENT PROCEDURES

TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 281

► Using a tension meter (Part No. 190279), check the timing belt tension either side of the cable

clamp is between 42Hz and 48Hz. Check the two readings are within 1Hz of each other.

NOTE

Adjust the position (between the two pulleys) of the belt clamp to achieve the 1Hz deviation.

► If adjustment is not required, go to Correct Tension.

► If adjustment is required, slacken the two securing screws as detailed in Step 9.

► Adjust the timing belt tension using the cable tie.

► Tighten the locknut.

► Repeat until the correct tension is achieved.

► Correct Tension - Remove the timing belt clamp securing screws one at a time, apply a suit-

able locking compound and fully tighten.

► Remove the cable tie.

► Refit the panels removed.

► Remove the lock from the isolator.

► Power up the machine.

► Select Maintenance.

► Select Diagnostics.

► Using the Next or Previous button highlight Camera Axes.

► Select Select Module.

► Using the Next or Previous button highlight Home Camera X Axis.

► Select Run Diagnost.

► Using the Next or Previous button highlight Home Camera Y Axis.

► Select Run Diagnost.

► Carry out the following checks:

1. Camera Reference Position.

2. Calibrate Vision.

17 CAMERA SYSTEM MODULE

17.5 CALIBRATIONS AND CHECKS

282 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019

17.5 CALIBRATIONS AND CHECKS

17.5.1 Board Stop X Offset Check

WARNING

BOARD CLAMPS. EXTREME CARE MUST BE EXERCISED WHEN WORKING IN

THE TOOLING AREA OF THE MACHINE TO AVOID INJURY. THE FOILS ON THE

FRONT AND REAR BOARD CLAMPS ARE VERY SHARP.

► Select Open Cover Commands.

► Select Carriage To Rear.

► Select Unload Screen.

► Open the printhead cover.

► Remove the stencil.

► Close the printhead cover.

► Press the System button.

► Select Back.

► Select Maintenance.

► Select Diagnostics.

► Using the Next or Previous button highlight Camera Axes.

► Select Select Module.

► Using the Next or Previous button highlight Home Camera X Axis.

► Select Run Diagnost.

► Using the Next or Previous button highlight Home Camera Y Axis.

► Select Run Diagnost.

► Using the Next or Previous button highlight Drive to Board Stop Position.

► Select Run Diagnost.

► Select Exit.

► Using the Next or Previous button highlight Rail System.

► Select Select Module.

► Using the Next or Previous button highlight Toggle Board Stop.

► Select Run Diagnost.

► Open the printhead cover.

► Place a board onto the rails and move it up against the board stop.

► Close the printhead cover.

► Press the System button.

► Using the Next or Previous button highlight Toggle Board Clamp.

► Select Run Diagnost.

► Using the Next or Previous button highlight Toggle Board Stop.

► Select Run Diagnost.

► Select Exit.

► Using the Next or Previous button highlight Camera Axes.

► Select Select Module.

► Using the Next or Previous button highlight Initialise Vision System.

► Select Run Diagnost.

► Select Exit.

► Open the printhead cover.