03217917-01-01E By DEK Technical Reference Manual Vol 1_enPDFA - 第157页

11 SQUEEGEE MODULE 11.3 REPLACEMENT PROCEDURES TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 157 ► Remove the drive belt cover plate (1) from the squeegee printhead mechanism (2) and remove the broken drive belt. 1 2…

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11 SQUEEGEE MODULE
11.3 REPLACEMENT PROCEDURES
156 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019
11.3 REPLACEMENT PROCEDURES
11.3.1 Drive Belt Replacement
There are two different types of squeegee stepper motors that drive the drive belts, one type featur-
ing a green ident label (1) on the underside which requires tensioning of the belts, the other type
without the label which does not require tensioning.
1
Squeegee Stepper Motor (Green Ident Label Shown)
The belt replacement procedures for the two types are different, so care must be taken to ensure
the correct procedure is followed.
11.3.1.1 Rear Squeegee Drive Belt (Green Label)
The rear squeegee drive belt (right hand stepper motor) can be replaced without having to remove
the printhead mechanism from the print carriage.
► Select Open Cover Commands.
► Select Carriage To Front.
► Select Back.
► Select Shut Down.
► Select Continue.
► Switch the mains isolator to OFF; lockout the isolator switch.
► Open the printhead cover.
► Remove the squeegees, if fitted.
11 SQUEEGEE MODULE
11.3 REPLACEMENT PROCEDURES
TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 157
► Remove the drive belt cover plate (1) from the squeegee printhead mechanism (2) and
remove the broken drive belt.
1
2
► Slacken off the three screws (6) securing the right hand motor (4) to the motor support plate.
7
6
5
4
3
► Fit the new belt in position.
► Using a cable tie wrap (5) or similar, provide a loop around the top of the body of the motor (4)
enabling the motor to be pulled using a force meter (3). Ensure that the force meter is pulled
in the direction which the drive belt is fitted, figure above refers.
► Pull the force meter (3) until a tension of 3-4kgs is monitored on the meter. Tighten the three
screws (6) whilst the motor is under tension.
► Refit the squeegees.
► Close the printhead cover.
► Remove the isolator lock; turn the mains isolator switch ON.
► Press the System button.
11 SQUEEGEE MODULE
11.3 REPLACEMENT PROCEDURES
158 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019
11.3.1.2 Front Squeegee Drive Belt (Green Label)
To replace the front squeegee drive belt (left hand stepper motor), the printhead mechanism must
be removed from the print carriage.
► Select Open Cover Commands.
► Select Carriage To Front.
► Select Back.
► Select Shut Down.
► Select Continue.
► Switch the mains isolator to OFF; lockout the isolator switch.
► Open the printhead cover.
► Remove the squeegees, if fitted.
► Remove the drive belt cover plate (1) from the squeegee printhead mechanism (2) and
remove the broken drive belt.
1
2
► Disconnect the following connectors from the print carriage, left hand side.
●
Rear Squeegee Motor
●
Front Squeegee Motor
●
Home Sensors
●
Squeegee Pressure Amplifier