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Loveshaw LITTLE DAVID CAC50, Manual

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Loveshaw LITTLE DAVID CAC50 Manual Download Page 13

12 

Troubleshooting: 

 

Problem 

Cause 

Corrective Action 

The tape is not cut, or the cut 

is not clean. 

Knife blade is damaged or 

needs to be cleaned. 

 

Tape tension needs to be 

increased. 

 

Tape is not centered on rollers. 

 

Knife spring missing or worn. 

 

 

Replace knife blade. 

. 

 

Increase drag on knurled 

tension roller. 

 

Adjust tape core height. 

 

Replace spring. 

 

 

Front tab length too long. 

Cartridge threaded incorrectly. 

 

 

Tape tension needs to be 

increased. 

 

Tape is not centered on rollers. 

 

Check threading diagram on 

cartridge frame. 

 

Increase drag on knurled 

tension roller. 

 

Adjust tape core height.  

 

Rear tab not fully wiped down  Rear tab length too long. 

 

 

Main spring tension to weak. 

 

Main spring broken or worn. 

 

Increase drag on knurled 

tension roller. 

 

Adjust main spring tension. 

 

Replace main tension spring.  

 

Rear tab too long. 

Knife spring worn. 

 

Not enough tape tension 

 

Replace knife spring. 

 

Increase drag on knurled 

tension roller. 

 

 

 

 

 

 

Summary of Contents for LITTLE DAVID CAC50

Page 1: ...NUAL CAC51 THE LOVESHAW CORPORATION LOVESHAW EUROPE 2206 EASTON TURNPIKE BOX 83 UNIT 9 BRUNEL GATE SOUTH CANAAN PA 18459 W PORTWAY INDUSTRIAL ESTATE ANDOVER HAMPSHIRE SP103SL TEL 570 937 4921 ENGLAND FAX 570 937 4370 44 264 3575 11 ...

Page 2: ...1 Part and Instruction Manual Loveshaw Pressure Sensitive Tape Cartridge CAC50 2 wide tape CAC51 3 wide tape ...

Page 3: ... arm and retracts to clear the knife blade As the knife arm rotates into the cartridge the knife activation spring compresses generating cut force As the box proceeds pass the cartridge the front arm roller will no longer contact the major flaps of the box but the rear wipe roller will still contact the major flaps Eventually as the box travels the knife arm will completely stop contacting the maj...

Page 4: ...alled in an operating machine Use lock out tag out protocols before installing or removing cartridges from machinery Do not bypass or remove safety guard on knife blade Observe caution when near tape cartridge knife The knife blade is protected by a locking cover which is held closed by the link bar Never make any adjustments to the tape cartridges when installed in an operating machine ...

Page 5: ...k knurled tension roller The adhesive side of the tape contacts the knurled roller The tape is then threaded over the aluminum idler roller with the non adhesive side of the tape contacting it The tape is then fed through the horse shoe bracket roller section of the cartridge The tape is threaded behind the two small diameter black knurled rollers upper and lower and in front of the nylon idler ro...

Page 6: ... the tape guide fingers This completes the threading Refer to figure 3 and 4 Figure 3 Figure 4 Tension roller Idler roller Horse shoe bracket Lower knurled roller Idler roller nylon Upper knurled Tape guide plate Tape guide fingers ...

Page 7: ...lt is obtained By turning the tape core height adjusting nut clockwise the tape core height position will decrease moving the tape closer to the mill stand side of the cartridge By turning the tape core height adjusting nut counter clockwise the tape core height position will increase This will make the tape track further away from the mill stand After each adjustment always tighten the tape core ...

Page 8: ...roller The knurled tension roller is factory set to its optimal setting for a thin milled tape Not enough tension results in poor tape cutting adversely too much tension results in tape breakage or the tape snapping back when the tape is cut Rotating the tension roller adjustor nut clockwise increases tension and rotating it counter clockwise decreases tension Refer to figure 6 Setting main spring...

Page 9: ...o figure 7 Setting knife cut force spring The knife cut force spring is a compression type spring The spring is used to articulate the knife arm when the box release it The knife springs out of the cartridge and through the tape The amount of force that the knife arm cuts with is controlled by the compression spring By turning the adjust nut clockwise the amount of spring force is increased By tur...

Page 10: ...t may be necessary to adjust the stop depending on the type of machine that the cartridge is being used in If the cartridge is placed in a machine and the tape is not being applied to the major flaps with enough pressure an adjustment will be necessary This will be evident by inspecting the box as it exits the machine Normal symptoms include the tape bridging across the major flaps or the tape bun...

Page 11: ... important to check to rotation of the new application roller when installing it The roller must turn in the direction of box travel Refer to figure 10 Knife blade replacement Knife blade replacement requires either an 8mm box or socket wrench By loosening the two holding screws the blade can be slid out and the new blade slid in There is locating pin that insures proper orientation Take caution n...

Page 12: ...11 Warning Use extreme care when working near the knife blade The blade is extremely sharp If care is not taken severe personal injury can result Figure 11 Knife blade Holding screws Knife guard ...

Page 13: ... length too long Cartridge threaded incorrectly Tape tension needs to be increased Tape is not centered on rollers Check threading diagram on cartridge frame Increase drag on knurled tension roller Adjust tape core height Rear tab not fully wiped down Rear tab length too long Main spring tension to weak Main spring broken or worn Increase drag on knurled tension roller Adjust main spring tension R...

Page 14: ...NT ROLLER ARM ASSY CAC51 FRONT ARM ASSY idw Parts List DESCRIPTION PART NUMBER QTY ITEM ARM FRONT MAIN CAC50 005 4 1 1 ARM FRONT TOP CAC50 006 4 1 2 SHAFT FRONT ROLLER 3 CAC51 002 3 1 3 SHAFT 3 PIVOT ARM CAC51 011 3 1 4 ROLLER CENTER CAC51 016 3 1 5 TAPE GUIDE PLATE 3 CAC51 019 4 1 6 HORSE SHOE JBW1014 4 1 7 STOP TAPE GUIDE PLATE PSC139 3 1 8 SPRING GUIDE PLATE PSC321022A 4 1 9 SPRING FINGER PLATE...

Page 15: ......

Page 16: ...7 CAC51 001 3 SHAFT WIPE ROLLER 3 8 PSC12 3 3 BUSHING WIPE ROLLER 2 9 LP06B 003B 3 WIPE ROLLER 2 10 CAC51 010 3 STUD REAR ARM SPRING 1 11 CAC51 011 3 SHAFT PIVOT ARM 2 12 PSC501101 4 CARTRIDGE MAIN SPRING 1 13 CAC50 002 5 FRAME TOP 1 14 M5 X 10 FH SCREW 13 15 CAC50 043 3 SPACER REAR PIVOT ARM 1 16 M5 X 12 FH SCREW 23 17 CAC50 003 4 CONNECTING LINK ARMS 1 18 CAC50 008 4 REAR ARM LEFT 1 19 LP06B 003...

Page 17: ......

Page 18: ...PLATE KNIFE 1 5 CAC51 011 3 SHAFT PIVOT ARM 2 6 50185 049 BRONZE FLANGE BUSHING 2 3 8 X 1 2 X 3 8 7 CAC50 006 4 FRONT ARM TOP 2 8 CAC51 016 3 CENTER ROLLER 1 12 DIA 1 9 CAC50 017 3 SHAFT KNIFE ARM 1 10 CAC50 038 3 THREADED SUPPORT SHAFT 1 11 CAC50 005 4 FRONT ARM MAIN 1 12 M5 X FH SCREW 13 13 CAC51 007 3 KNIFE BRACKET 1 14 M5 X 12 BUT HD SCREW 2 ...

Page 19: ......

Page 20: ... 1 5 50186 007 BRONZE FLANGE BUSHING 6 3 8 X 1 2 X 1 2 6 CAC50 041 3 SPACER KNIFE GUARD 1 7 CAC50 048 3 SHAFT KNIFE GUARD 1 8 50186 039 BRONZE FLANGE BUSHING 4 3 8 X 1 2 X 3 8 9 PSC301110 3 SPACER 1 2 ID X 1 1 8 LONG 1 10 CAC51 001 3 SHAFT WIPE ROLLER 3 11 CAC50 005 4 FRONT ARM MAIN 1 12 CAC50 102 6 FRAME MAIN 1 13 CAC51 013 3 SPACER CONN ARM KNIFE COVER 1 14 M5 X 10 BUTTON HD SCREW 3 ...

Page 21: ......

Page 22: ... PSC510 BUSHING TIE BAR 1 5 CAC50 017 3 SHAFT KNIFE ARM 1 6 CAC50 038 3 THREADED SUPPORT SHAFT 1 7 PSC321044 3 BUSHING KNIFE STOP 1 8 AV960C616C FLAT WASHER 1 9 M6 HEX NYLON INSERT NUT 1 10 CAC50 009 4 KNIFE ARM MAIN 1 11 CAC50 102 6 FRAME MAIN 1 12 M5 HEX NUT 1 13 PSC321046 4 STOP NUT 1 14 X111 PS SPRING KNIFE ARM 1 15 PSC321045 4 SPRING GUIDE 1 ...

Page 23: ......

Page 24: ...NGTON BEARING 1 4 LP06B 010 3 IDLER ROLLER 3 4 DIA 1 5 CAC51 004 3 KNURLED ROLLER SHAFT 1 6 PSC441014 4 KNURLED ROLLER 1 7 PSC321031 3 BRAKE WASHER 2 8 PSC321032 3 LOCKING WASHER 1 9 PSC321039 SPRING WASHER 6 10 50299 028 NYLON INSERT LOCKOUT 1 11 M5 X 12 FH SCREW 23 12 CAC50 102 6 FRAME MAIN 1 13 CAC51 005 3 SHAFT IDLER ROLLER 1 ...

Page 25: ...ED OTHER THAN FOR YOUR OWN USE OR TO BE DISCLOSED TO OTHER WITHOUT THE EXPRESSED WRITTEN CONSENT OF LOVESHAW ITW AND WILL BE RETURNED TO LOVESHAW ITW UPON REQUEST TAPE CORE ASSEMBLY 3 TCA201 AMYR 5 12 2005 N A N A 5 12 2005 N A TCA201 Parts List DESCRIPTION PART NUMBER QTY ITEM SHAFT TAPE CORE THREADED CAC50 096 4 1 1 BRAKE WASHER PSC28 3 2 2 SPRING DISC PSC33 1 3 SPRING COMP PSC33B 3 1 4 NUT TAPE...

Page 26: ...SE THE HEIGHT AND IN A COUNTERCLOCKWISE DIRECTION TO INCREASE THE HEIGHT DO NOT OVER TIGHTEN THE INTERNAL ASSEMBLY THIS MAY CAUSE DAMAGE TO THE TAPE CORE ASSEMBLY RUN THE TAPE THROUGH THE CARTRIDGE AND CHECK FOR PROPER TAPE POSITION REPEAT ADJUSTMENT AS REQUIRED TO CENTER TAPE STEP 3 ADJUSTING TAPE ROLL BACK LASH OR FREE SPIN THERE IS A DISC SPRING PSC33 AND A SET OF BRAKE WASHERS PSC28 3 USED TO ...

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