03217917-01-01E By DEK Technical Reference Manual Vol 1_enPDFA.pdf - 第162页

11 SQUEEGEE MODULE 11.3 REPLACEMENT PROCEDURES 162 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 6 6 5 4 3 2 1 1 Front Squeegee Mount 5 Front Squeegee 2 Rear Squeegee Mount 6 Front Squeegee Key and Keyway Slot 3 Lock…

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11 SQUEEGEE MODULE
11.3 REPLACEMENT PROCEDURES
TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 161
► Repeat previous two steps for the other belt.
► Hold the new belt in position. Align the teeth of the drive pulley (4) with the teeth of the belt
and engage the belt on the pulley.
► Whilst maintaining light tension on the belt in the drive pulley (4), to prevent it from slipping off,
rotate the idler pulley (5) to align its teeth with the belts’ teeth.
► Slip the belt down over the idler pulley (5); rotate the idler pulley if necessary to aid fitment
and alignment.
NOTE
Even with power removed the drive pulley (4) does not rotate.
► Repeat previous three steps for the other belt.
► On completion refit the drive belt cover plate (1) and re-connect all leads to the print carriage,
left hand side.
► Refit the squeegees.
► Close the printhead cover.
► Remove the isolator lock; turn the mains isolator ON.
► Press the System button.
11.3.2 Fitting the Squeegees
It is usual to fit two trailing edge squeegees and use the machine in the Print/Print mode.
When fitting a single squeegee (trailing edge or diamond section) to the machine, it must be fitted
to the front squeegee mount only.
The following procedure describes a double trailing edge squeegee configuration fit to the machine
printhead mounting assembly.
► Select Product Setup.
► Select Change Squeegees.
► The print carriage is driven to the front position.
► Open the printhead cover.
► Fit the rear squeegee to the rear squeegee mount tightening the thumbscrews finger tight.
NOTE
The locking thumbscrews on the rear squeegee are positioned wider apart than those fitted to the
front squeegee and the keyway slot is positioned on the left hand side of the rear squeegee.
► Fit the front squeegee to the front squeegee mount ensuring the thumbscrews are tightened
finger tight.
NOTE
The locking thumbscrews on the front squeegee are positioned closer together than those fitted to
the rear squeegee and the keyway slot is positioned on the right hand side of the front squeegee.
11 SQUEEGEE MODULE
11.3 REPLACEMENT PROCEDURES
162 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019
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6
5
4
3
2
1
1 Front Squeegee Mount 5 Front Squeegee
2 Rear Squeegee Mount 6 Front Squeegee Key and Keyway
Slot
3 Locking Thumbscrew (in 4 posi-
tions)
7 Rear Squeegee Key and Keyway
Slot
4 Rear Squeegee
► Close the printhead cover.
► Press the System button.
► Select Continue.
► Select Back.
► Carry out 11.4.2 "Squeegee Reference Height (Pressure Feedback)" [}165].
11 SQUEEGEE MODULE
11.4 CALIBRATIONS
TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 163
11.4 CALIBRATIONS
11.4.1 Squeegee Pressure Calibration
Squeegee pressure calibration is carried out on machines, fitted with the Pressure Hardware op-
tion, after the following circumstances:
●
The squeegee mechanism is replaced
●
The strain gauge bridge in the squeegee mechanism is replaced
●
The rising table sensors have been replaced or adjusted
A force meter calibration jig and squeegee pressure plate are required to perform the squeegee
pressure calibration.
NOTE
1. Ensure that the rising table print reference height is set correctly before commencing, (the
calibration relies upon accurate positioning of the table to make a reference).
2. Ensure that the Pressure Hardware parameter in Maintenance\Machine Setup\Options is set
to FITTED.
Use the following procedure to calibrate the squeegee pressure:
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 from the machine.
► Remove the tooling from the manual tooling plate.
► Close the printhead cover.
► Press the System button.
► Select Back.
► Select Maintenance.
► Select Calibrations.
► Select Classic Calibrations.
► Select Pressure.
► Select Calibrat Readings.
The rails are checked for the presence of a board, the print carriage moves to the calibration posi-
tion, the rear rail moves to home position, the table homes and the board clamps are closed.
► The machine cover is unlocked and the message ‘Fit the pressure calibration rig’ is dis-
played with the following window:
CALIBRATION DATA
Gain Factor
1.02
► Open the printhead cover.