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21

when engaged,remove the right side plastic housing and
check the wire connectors to the switch for any loose or
broken wires.Re-connect or replace and rewire as shown in
the schematic.Next,using a multimeter check the continuity
of the switch(disconnect the power cord first) by putting your
probes on the the two inner most switch terminals and
engaging the switch..If there is no continuity present,the
switch is faulty and should be replaced(part # PRS310) and
rewired as shown in the schematic.The fan system should
now be operational.If not,consult a servicing dealer/tech,the
Ledco service dept or proceed to the next,Advanced,
troubleshooting level.
   3)

Advanced.

If,after following the sequential

troubleshooting guidelines,excessive wrinkling persists
(especially with an hour glass shaped dwell line resulting in
center wrinkling),the rubber rolls may be excessively worn,
damaged or faulty and need to be replaced.Please follow
the dis-assembly removal ,replacement and re-assembly
instructions in the advanced level of Section 3 for successful
rubber roll replacement. Lamination should then be smooth
and wrinkle free.
   To further troubleshoot and/or repair the fans,you have to
remove the back,bottom motor cover as explained earlier in
SECTION 2,A-3.Visually inspect all wires and connectors for
the 3 fan motors,replace or rewire as needed per schematic.
Next using a multimeter set at Volts AC,follow the black and
white wires that come from the terminal block to the first
white wire cap connection for the fans.Power up the
machine and insert the probes into the first cap connector,
checking for 110 Vac,then the second wire cap connector
checking for the same.If proper voltage is evident through

Содержание premier 4 series

Страница 1: ...diagnostics 3 Advanced or servicing dealer level true servicing issues mechanics electronics and advanced diagnostics PLEASE NOTE To assure you get the best performance from your laminator always fol...

Страница 2: ...would the digital display disconnect the power cord and with a phillips head screw driver remove the 11 screws from the right hand plastic housing remove the cam shaft handle using a 1 8 allen wrench...

Страница 3: ...insert it into the receptacle it will only go in one way The display should now be operational If not the ribbon cable may be disconnected from the heat control circuit board located inside the machin...

Страница 4: ...shown in schematic If the heat switch and digital display do not illuminate when engaged and there is still no heat with a multimeter check the continuity of the heat switch by putting your multimete...

Страница 5: ...reverse sequence The display should now be operational If not the problem lies in either the ribbon cable or the heat control and you should now consult a servicing dealer tech the Ledco service dept...

Страница 6: ...secures the heat sensor and bullet to the inside of the heat shoe This set screw is located in the center of the back of the heat shoe in line with the round head phillips screws that hold the rubber...

Страница 7: ...e as from the digital display board explained previously Now we can test the heat control board Disconnect all the wire leads from their respective terminals make note of their locations to ensure pro...

Страница 8: ...e board will have to be replaced Incidentally this condition of a failed heat control board relay will most likely result in runaway uncontrollable heat which leads us to the next part of the heat sys...

Страница 9: ...symptoms persist using a multimeter check the heat sensor wires you will have to remove the bottom back motor cover as instructed in the previous section to gain access to the heat control board and w...

Страница 10: ...power to the board you get a closed reading which would result in the relay staying closed under power and subsequent overheating the board has failed and must be replaced and wired exactly as shown i...

Страница 11: ...anner as the right side as described in the previous section Visually check the drive chain to make sure it is secure If the chain is not connected reconnect the chain at the connecting link If the co...

Страница 12: ...Replace and rewire per the schematic The drive system should now be operational If the drive system is still non operational you should now check the speed dial potentiometer located directly above th...

Страница 13: ...e two center terminal lead wires from the switch to their respective connectors to the black and red drive motor lead wires Place your multimeter probes inside the connectors set at volts DC Now conne...

Страница 14: ...e the bottom motor cover The drive system should now be operational To replace the drive motor using a 1 8 allen wrench loosen the set screws in the motor sprocket part PRS253A the pull roll sprocket...

Страница 15: ...e appearance B INTERMITTENT DRIVE sometimes accompanied by a clunking or skipping grinding noise 1 Basic Disconnect power cord and remove left hand plastic housing as described previously Visually che...

Страница 16: ...l and is still causing intermittent clunking drive it may be necessary remove the chain sprockets and gears from the drive side to allow unrestricted rotation of the rolls See SECTION 3 A 3 for proced...

Страница 17: ...orange pressure springs part LC25 031 4 from the bottom bearing supports part 4285 028 4 and top bearing supports part 4285 030 4B Now using a 9 64 allen wrench and a phillips head screwdriver remove...

Страница 18: ...kling AND ADHESION peeling not sticking PROBLEMS 1 Basic The majority of web film tension or wrinkling problems and adhesion problems are covered in the owners manual Please refer to section 5 8 Preve...

Страница 19: ...oting level Waviness in a laminated piece is usually a symptom of to much heat running the prints to slow or not using the cooling fans As the operation manual points out the cooling fans should be us...

Страница 20: ...lear regardless of how much supply roll tension you use Conversely a wider thicker over inch dwell line indicates too much supply roll pressure resulting in steering or shifting of the web towards the...

Страница 21: ...ts especially with an hour glass shaped dwell line resulting in center wrinkling the rubber rolls may be excessively worn damaged or faulty and need to be replaced Please follow the dis assembly remov...

Страница 22: ...formance should now be rectified As noted in the first part of this section adhesion problems non adhesion peeling away or cloudy haziness in the film are addressed in the owners manual Section 5 6 Pr...

Страница 23: ...to dry and set even more for heavy coverage areas before laminating and as always run a few expendable sample pieces to be sure the actual pieces can be laminated successfully Any questions regarding...

Страница 24: ...24 questions pertaining to any part of this guide please call our toll free service lines at 800 937 9697 800 937 9293 or e mail us at LEDCO ledcoinc com THANK YOU AND HAPPY LAMINATING...

Страница 25: ...2 Why won t the laminator stop heating page 2 3 Why is there no drive page 2 4 Why does it make a clunking grinding sound when I laminate page 3 5 Now that I have wrapped copious amounts of film arou...

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