88192277-01-19 - Micron Technical Reference V9 Volume 4.pdf - 第62页

38.20 Technical Reference Manual Chapter Issue 4, Nov 19 STINGER REPLACEMENT PROCEDURES 31. Selecting Start Purge starts the purge routine. Adhesive is delivered onto the centre of the boards’ upper surface until the Sto…

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STINGER
REPLACEMENT PROCEDURES
Chapter Issue 4, Nov 19 Technical Reference Manual 38.19
10. Fit a replacement nozzle to the auger.
11. Fit the pneumatic air connector to the rear of the syringe assembly.
12. Lift the complete assembly up toward the auger drive gear. The auger valve
screw engages with the square shaft of the drive motor, rotate the exposed
portion of the drive belt at the same time pushing the assembly upward
ensuring that it is in the fully up position.
13. Refit the assembly into the ‘C’ clamp.
14. Refit the in-line air connection to the pneumatic air connector.
15. Tighten the plastic auger clamp screw. Do not over tighten.
16. Remove the nozzle dust cap. Ensure that the nozzle assembly is in line with
auger valve and not bent or at an angle.
17. Close the printhead front cover.
18. Reconnect the printer to the pneumatic supply and unlock the mains elec-
trical isolator.
19. Switch the mains isolator ON.
20. When requested, press the System button.
21. Select Load Board and load the calibrated test product as described in the
Calibration section of this manual.
22. Select Setup Product.
23. Select Options.
24. Select Stinger Dispenser.
25. Select Unload Screen.
26. Open the printhead cover and unload the stencil.
27. Close the printhead cover.
28. Press the System button.
Purge station consumable monitoring is turned on in Mainte-
nance\Machine Setup\Options\Stinger Options\Stinger Consumable
Monitoring.
29. Select Purge Process. The camera axis drives to the centre of the board.
30. Load a board on to the printer’s input rail and select Auto Board.
38.20 Technical Reference Manual Chapter Issue 4, Nov 19
STINGER
REPLACEMENT PROCEDURES
31. Selecting Start Purge starts the purge routine. Adhesive is delivered onto
the centre of the boards’ upper surface until the Stop Purge button is
selected.
Purging should be monitored to ensure that the adhesive delivery is flowing
without being spurious or spluttering. Any signs of inconsistency are likely
to be due to air pockets in the delivery mechanism. Provided the assembly
has been set up correctly this should be almost negligible.
32. Close the printhead front cover.
33. Press the System button.
34. Select Back.
35. Select Back.
36. Select Open Cover Commands. Open the front printhead cover.
37. Load the stencil into the printer, close the printhead cover and press the
System button.
38. Select Load Screen. Load a stencil into the printer.
39. Select Confirm.
40. Select Back.
41. Select Back.
42. Select Maintenance\ Machine Setup\ Options.
43. Select Machine Setup.
44. Select Options.
45. Select Stinger Options.
46. Carry out the Stinger Calibrated Offset X and Stinger Calibrated Offset
Y calibrations as described in the calibration section of this chapter.
47. Select Back.
48. Select Back.
49. Select Back.
50. Select Setup Product.
51. Select Options.
52. Select Stinger Dispenser.
53. Select Load Board.
54. Load a board on to the printer’s input rail and select Auto Board.
55. Select Dispense Sweep.
56. Ensure that deposit placement accuracy and volume are acceptable.
57. Select Stop Dispense.
58. Select Back.
59. Select Back.
60. Select Back.
61. Select Auto Board.Remove the board from the output conveyor.
STINGER
REPLACEMENT PROCEDURES
Chapter Issue 4, Nov 19 Technical Reference Manual 38.21
Laser Sensor
Replacement
1. Isolate the printer from the pneumatic supply and lockout the mains electri-
cal isolator.
2. Open the printhead cover.
3. If fitted, remove the stencil.
4. Pull the camera carriage to the front of the printer.
5. Slacken off and remove the two M4 x 50 socket head screws that hold the
magnet plate to the carriage.
6. Remove the magnet plate.
Magnet Plate