88192277-01-19 - Micron Technical Reference V9 Volume 4.pdf - 第63页

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 …

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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
38.22 Technical Reference Manual Chapter Issue 4, Nov 19
STINGER
REPLACEMENT PROCEDURES
7. Remove the two M3 x 16 socket head screws that hold the laser unit to the
dispense body.
NOTE
The camera has been omitted for clarity.
8. Remove the laser sensor.
9. Unscrew the connector lock ring and remove the sensor from the connector.
10. Screw the connector lock ring into the replacement laser unit.
11. Align the assembly with the mounting holes and fix it using the two socket
head screws. The laser is in a fixed location and does not need positioning.
12. Refit the magnet plate.
13. Load the stencil.
14. Close the printhead front cover.
15. Reconnect the printer to the pneumatic supply and unlock the mains elec-
trical isolator.
16. Switch the mains isolator ON.
17. When requested, press the System button.
18. Run a calibrated test product (next section in this chapter) to calibrate
offsets.
Auger Drive Belt
Replacement
A pulley belt, located under the top cover of the unit, drives the auger.
1. Isolate the printer from the pneumatic supply and lockout the mains electri-
cal isolator.
2. Open the printhead front cover.
3. If fitted, remove the stencil
4. Pull the camera carriage to the front of the printer.
5. Remove the two M2.5 x8 countersunk head screws, which secure the cover.
6. Remove the cover.
7. Slacken off the four M2.5 x 5 cap head screws of the drive pulley mounting.
8. Move the motor drive pulley to the front.
9. Lift the drive belt clear of the driven pulley.