manual, automatic hot melt melter/feeder retrofit kit...

Automatic Hot Melt Melter/Feeder Retrofit Kit Mechanical Float Model

Part104506A

NORDSON CORPORATION. AMHERST, OHIO l USA

Nordson Corporation welcomes requests for information, comments and inquiries about its products.

Address all correspondence to

Nordson Corporation 11475 Lakefield Drive

Duluth, GA 30136

Notice

This is a Nordson Corporation publication which is protected by copyright. Original copyright date 1983. No part of this document may be photocopied, reproduced, or translated to another language without the prior written

consent of Nordson Corporation. The information contained in this publication is subject to change without notice.

Trademarks

AquaGuard, Blue Box, Control Coat, Equi=Bead, FloMelt, FoamMelt, FoamMix, Helix, Hot Shot, Hot Stitch, Meltex, MicroSet, MultiScan, Nordson, the Nordson logo, OmniScan, Porous Coat, Posi-Stop, RBX, Sure-Bond,

UniScan, UpTime, and Versa-Spray are registered trademarlks of Nordson Corporation.

BetterBooksM, CF, Controlled Fiberization, Easy-Screen, Fibermelt, Flo-Tracker, PrintGuard, and Package of Values are trademarks of Nordson Corporation.

Manual 59-28 104 506A 0 1984 Nordson Corporatlor,

Issued 4/84 All Rights Reserved

0 Nordson Packaging and Assembly Division

Atlanta, Georgia TECHNICAL PUB1 /CATION 59-28-01/02

TABLE OF CONTENTS

Page

Introduction . . . e . o . Q . . a . . . . 1 . o . . 59-28-l

Instructions . o . . . . . . . . o . . . . . . . . . 59-28-2

Electrical Parts List. d . . . . . 0 . . . . . e . . 59-28-8

PartsList......, . . . . . . . . . . . . . . 59-28-H

LIST OF ILLUSTHATIONS

Figure

1

2

3

4

5

6

7

8

9

10

Mechanical Overheat Switch Kit ......

Control Box. . . . . . . . . . ......

Grid Electrical Box. . . . . . ......

Heater Enclosure Assembly. . . ......

Grid............. ......

Control Box. . . . . . m e . . ......

Control Box Assembly . . . . . ......

Melter/Feeder Wiring Diagram . ......

Melter/Feeder Schematic. . . . ......

Mechanical Overheat Switch Kit ......

Page

59-28-l

59-28-2

59-28-3

59-28-4

59-28-4

59-28-5

59-28-6

59-28-9

59-28-9

59-28-10

ISSUED 4/84 LITHO U.S.A.

SUPERSEDES 8 / 8 3 @ NORDSON CORPORATION 1984

All Rtghts Reserved


Atlanta, Georgia TECHNICAL PUB1 /CATION 5 9 - 2 8 - 1

MELTER/FEEDER RETROFIT - MECHANICAL FLOAT MODEL

INTRODUCTION

The Mechanical Overheat Switch Kit P/N 2:73 973 provides protection against overheating of the melter/feeder grid. The kit components are illustrated in Figure 1 and in the Parts List.

2

12

8

1. Assembly, Heater Enclosure 2. Assembly, 48 V Heater 3. Insulator, Enclosure 4. Tab, Push-on, 0.25 in. 5. Grid, Melter 6. Plate, Heater Retainer 7. Screw, lo-32 x 0.50 in. a. Gasket, Male Sleeve 9. Insulator, Hopper

10. Sealant, RTV

11. Switch, Temp., 510°F 12, Bracket, Switch 13. Screw, Standoff 14. Screw, 5-40 x 0.25 in. 15. Insulator, Fuse Post 16. Cover, Relay 17. Spacer, Standoff ia. Screw, Pan Hd, 6-32 x 0.31 in. . 19. Screw, Pan Hd, lo-32 x 0.68 in.

Figure 1 - Mechanical Overheat Switch Kit

NOTE: Conduit with wiring (shown attached to Part No. 1) may be shipped as a separate piece.

ISSUED 4/84 SUPERSEDES 8 / 8 3 0 NORDSON CORPORATION 1983

LITHO U.S.A. All Rights Reserved

0 Nordson 59-28-2

Packaging and Assembly Division

Atlanta, Georgia ‘TECHNICAL PUB1 ICATION

INSTRUCTIONS

1. Remove all material from the hopper through the clean-out door at the base of the hopper. Close the clean-out door.

2. Heat the applicator and refill/melter up to operating temperature.

3. Shut down the applicator as described in the applicator service manual.

4. Turn the refill/melter OFF at the MAIN SWITCH.

A 0

Wear safety glasses, safety gloves (P/N 902 514) and other protective clothing to prevent injury from exposed hot surfaces, splashed hot material, or hot parts.

5. Disconnect and lock out external electrical power to the refill melter.

6. Open the control box (Figure 2) and locate terminal block TBl (1, Figure 2).

ISSUED ,,-?u* llCA 4’84

Figure 2 - Control Box

SUPERSEDES f3 /’ 8 3 @ NORDSON CORPORATION 1984 All D*nk,r C),.r.....-A


Atlanta. Georgia TECHNICAL PUBLICATION 59-28-3

7. Remove wires 19 and 20 from TBl.

8. Remove the two screws which secure the cover to the grid electrical box, and remove the cover.

9. Locate wires 19 and 20 in the grid electrical box and carefully pull the wires through the flex conduit until they are completely removed from the conduit. Disconnect the wires from the heater connections and discard the wires.

Figure 3 - Grid Electrical Box

10. Carefully remove the probe (1, Figure 3) from the hole in the center of the grid electrical box. Clean the probe.

0 Take care not to kink or make sharp bends in the copper capillary tube when removing the probe. Kinks or sharp bends will prevent the probe from functioning properly.

11. Separate the conduit nut (2, Figure 3) from the 45-degree conduit fitting (3, Figure 3) and carefully pull the probe through the conduit fitting.

12. Remove the locknut (5, Figure 2) from the control box end of the conduit.

13. Carefully slide the flex conduit over the probe until the conduit is completely removed.

14. Remove the screws (4, Figure 3) which secure the male sleeve (5) to the grid (6), and lower the male sleeve until it rests on the female sleeve.

15. Using a 5/16" wrench, remove the screws (10, Figure 3) which secure the grid (6) to the hopper flange (8), and remove the grid, grid electrical box and upper and lower insulators (7 and 9). The grid electrical bclx may have to be removed from the grid to gain access to the screws.

NOTE: Leave grid heaters and wiringconnected to the grid. The old grid heaters are not compatible with the new grid and grid wiring, and must not be reused.

ISSUED 4184 SUPERSEDES tITW U S A.

8 / 8 3 @ NORDSON CORPORATION 1984

All Rights Reserved


59-28-4 Atlanta, Georgia TECHNICAL PUB1 ICATION

16.

17.

18.

19.

20.

Clean the underside of the hopper flange and the top of the male sleeve, if necessary. A hot air gun may be required.

Remove the male and female sleeves from the applicator cover. Using the screws provided (19, Figure l), install the new grid (5) and male sleeve gasket (8). Put the female sleeve and male sleeve and grid assembly back in place on the applicator.

Using the screws provided (19, Figure l), install the hopper insulator (9) and grid and male sleeve assembly.

Apply a l/32" coating of RTV sealant (10, Figure 1) to both sides of the enclosure insulator (13).

Using the screws provided (7, Figure l), install the new heater enclosure assembly (1, Figure 5) and the enclosure insulator (2, Figure 5) onto the new grid (3,, Figure 5).

Figure 4 - Heater Enclosure Assembly

ISSUED 4184 LITHO U.S.A.

Figure 5 - Grid

SUPERSEDES 8 / 8 3 @ NORDSON CORPORATION 1984 All Rights Reserved


Atlanta, Georgia TECHNICAL PUBLICATION 59-28-5

NOTE: Mount the enclosure insulator between the heater enclosure assembly and the grid. Be sure the holes in the enclosure insulator and the heater enclosure assembly are properly aligned with the holes in the grid (Figure 4).

21. Apply a coating of RTV sealant to one side of the heater retainer plate (6, Figure l), and using the screws provided (7, Figure 1) , install the heater retainer plate onto the back of the new grid as shown in Figure 5 (with the sealant between the grid and the heater retainer plate).

22. Remove the locknut, washers, and ground wire from the ground stud (4, Figure 2), slide the push-on tab (4, Figure 1) onto the ground stud, and replace the ground wire, washers and locknut. Make sure the locknut is tight.

23. Locate the control relay (3, Figure 2) in the control box.

24. Remove the two screws which secure the control relay to the control box.

25. Insert the overtemperature thermostat mounting bracket (12, Figure 1) behind the control relay.

26. Using the standoff screws (13, Figure 1) and standoff spacers (17, Figure 1) provided, reinstall the control relay and thermostat mounting bracket as shown in Figure 6. (Both use the same mounting holes.)

NOTE: The standoff spacers MUST be in place to prevent contact between the standoff screws and electrically energized wires in the cabinet.

ISSUED 4/84 LlTuO !! S A.

Figure 6 - Control Box

SUPERSEDES tj/ 8 3 @ NORDSON CORPORATION 1984

All Rtghts Reserved



27. Carefully uncoil the new overtemperature thermostat probe (11, Figure 1). Place the locknut (1, Figure 7) over the hole in the control box, as shown. Route the probe (from inside the control box) through the locknut and hole. Make a gentle bend in the capillary tube at the back of the thermostat so that there is no more than 3/4" from the back of the thermostat to the probe.

0 Take care not to kink or make sharp bends in the copper capillary tube when inserting the probe. Kinks or sharp bends will prevent the probe from functioning properly.

28. Using the screws provided (18, Figure I), install the relay cover (16, Figure 1) onto the standoff screws as shown in Figure 7.

Figure 7 - Control Box Assembly

29. Locate the MAIN SWITCH (1, Figure 6) on the inside of the control box door.

ISSUED 4/84 SUPERSEDES f3 / 8 3 4 @ NORDSON CORPORATION 1984 -..-. -

30.

31.

32,

33.

34.

35.

36.

37.

38.

39.

40.

41.

42.

ISSUED

0 . Nordson Packaging and Assembly Division

Atlanta, Georgia TECHNICAL PUBlICATlON 59-28-7

Locate the knurled nut on the front of the control box door and remove it from the stem of the MAIN SWITCH.

Carefully loosen the locknut on the threaded stem of the MAIN SWITCH inside the door of the control box.

Remove the MAIN SWITCH from the door of the control box.

Position the fuse postinsulator (15, Figure 1) as shown in Figure 6, sliding the hole in the insulator over the stem of the MAIN SWITCH. Make sure the insulator flap is located between the fuse posts.

Reinstall the MAIN SWITCH into the control box door, reinstall the knurled nut, and tighten the locknut and knurled nut.

Install the conduit in the heater enclosure. Leave the locknut (1, Figure 4) loose to permit more movement of the conduit.

Remove the locknut from the flex conduit fitting (at the unused end of the conduit).

Carefully slide both probes through the flex conduit and into the heater enclosure assembly. The probes slide more easily if their positions in the conduit are staggered.

0 Take care not to kink or make sharp bends in the copper capillary tube when inserting the probes. Kinks or sharp bends will prevent the probe from functioning properly.

Route the flex conduit wiring into the control box through the locknut.

Carefully insert the probes into the holes in the grid as shown in Figure 4. For ease of installation, insert the new probe in the upper hole and the original probe in the lower hole.

NOTE: Carefully straighten the probes if necessary and make sure they are inserted all the way into the grid. DO NOT use any tlools that will damage the probes.

0 Take care not to kink or makle sharp bends in the copper capillary tube when insertinfg the probes. Kinks or sharp bends will prevent the probe from functioning properly.

Tighten the locknuts at both ends of the flex conduit.

Attach the GND wire from the flex conduit to the push-on tab located on the ground stud in the control box.

Using the screws provided (14, Figure l), install the new thermostat on the mounting bracket as shown in Figure 6.

4184 SUPERSEDES ;g / 8 3 @ NORDSON CORPORATION 1984 LITHO U.S.A. All Rtghts Reserved


Atlanta, Georgia TECHNICAL PUB1 /CATION 59-28-8

43. Remove wire number 5 from terminal block TBl and connect to the terminal on the new thermostat, as shown in Figure 7.

44.

45.

Install the new wire number 20 onto terminal 3 of terminal block TBl, as shown in Figure 7.

Install the new wire number 19 onto the terminal connection on the new thermostat, as shown in Figure 7.

46.

47.

Close the control box and tighten the latches securely.

Insert the new heaters (2, Figure 1) into the grid, as shown in Figure 5.

NOTE: Be sure the heaters are inserted completely into the grid.

48. Connect the heater wiring to the appropriate terminals on the terminal block TBH in the heater enclosure assembly. Also, connect the ground wire to the push-on terminal on the side of the heater enclosure.

A t

Be sure to connect the heater wiring to the appropriate terminals indicated on the diagram directly below terminal block TBH.

49. Close the heater enclosure assembly and tighten the latch securely.

50.

51.

Turn on external electrical power to the melter/feeder.

Verify that the unit functions electrically.

0 Do not heat the unit to application temperature without material in the applicator tank and refill melter hopper.

52.

53.

Refill the hopper with material.

Start up the applicator as described in the applicator service manual.

54. Allow the applicator to warm up to application temperature.

55. Turn the melter/feeder ON at the MAIN SWITCH.

56. Resume normal operation.

ISSUED 4184 LITHO U.S.A.


All Rights Reserved

0 Nordson Packaging and Assembly Owlsion

Atlanta, Georgia TECHNICAL PURL /CATION 59-28-9

CONTROL BOX COVER CONTROL BOX

SEE DETAIL C I

CONDUIT. CONTROL BOX

TO MELTER L ENCLOSURE ON MELTER GRID

CONDUIT, CONTROL BOX

TO TOP OF TANK

ELECTRICAL ENCLOSURE AT TOP OF TANK

Figure 8 - Melter/Feeder Wiring Diagram

SVKI. Part No. Descrlptlon

TBI 933 074 Board, Terminal Ll TB2 933 314 Board, Terminal

9 INDICATES UNIT ON Hl’5 938 109 Heater, 48 V

MANUAL CONTROL OF RELAY

LC 241 299 Switch, Level

NI 933 056 Nut, Wire GND 240 976 GND Clamp/Wire

Req.

1 1

Tl 937 090 Thermostat, ADJ. 1

AUTO LEVEL CONTROL OF RELAY. T2 937 102 Thermostat, ADJ. 1

AUTO CONTROL OF READY THERMOSTAT T3 Thermostat, Fix 1

-__----

INDICATES CONTROL SIGNAL TO RELAY

CONTROL RELAY AND THE!RMOSTAT

Figure 9 - Melter/Feeder Schematic


SUPERSEDES 8 / 8 3 @ NORDSON CORPORATION 1984 All Rights Reserved



2

12

ISSUED 4184 SUPERSEDES 8 / 8 3

‘9

Figure 10 - Mechanical Overheat Switch Kit

@ NORDSON CORPORATION 1984


Atlanta. Georgia TECHNICAL PUB1 ICATION 59-28-11

Item No. Part No. Description Req'd

1 273 973 273 975

273 999 242 687 981 247 933 314 981 597 274 105 933 128

981 905 242 654 933 078 273 979 273 977 931 130 931 129

2

933 017 933 305 240 674 983 120 984 129 983 021 271 221 273 997 938 109

3 273 967 4 271 221 5 270 046 6 270 050 7 981 160 8 241 303

9 10 11 12 13 14 15 16 17 18 19

241 287 900 411

273 980 274 112 981 000 274 104 274 114 274 113 981 039 981 131

Kit, Overheat Switch, Mechanical O Assembly, Heater Enclosure O" Enclosure, Heater Ooo Enclosure, Heater Ooo Clip, Latch Ooo Screw, Latch Clip Ooo Block, lo-Station Terminal Ooo Screw, 6-32 x 0.50 in. Ooo Label, Terminal Block Ooo Jumper, Terminal Block Ooo Tag, Warning Ooo Screw, Drive, #2 x 0.187 in. Ooo Gasket, Cabinet O" Connector, Conduit O" Conduit, Flex, 13.50 in. long O" Group, Wire, Enclosure Ooo Wire, 14 GA, Black Ooo Wire, 10 GA, Grn/Yel Ooo Marker, Wire, No. Ooo Marker, Wire, Gnd Ooo Terminal, Fring Tongue, No. 6 Ooo Terminal, Push-on, 0.25 O" Tag, Ground O" Lockwasher, No. 10 O" Nut, 10-32, Brass O" Washer, No. 10, Brass O" Tab, Push-on, 0.25 O Assembly, 48 V Heater O" Heater, 325 W, 0.38 x 7.25 in. O" Terminal, Spade O Insulator, Enclosure O Tab, Push-on, 0.25 in. O Grid, Melter O Plate, Heater Retainer O Screw, lo-32 x 0.50 in. O Gasket, Male Sleeve, l/8 in.

thick O Insulator, Hopper, l/4 in. thick o Sealant, RTV, 3 oz O Switch, Temp, 510°F O Bracket, Switch O Screw, Standoff O Screw, 5-40 x 0.25 in. O Insulator, Fuse Post o Cover, Relay O Spacer, Standoff O Screw, Pan Hd, 6-32 x 0.31 in. ' Screw, Hex Hd, lo-32 x 5/8 in.

Ref 1 1 1 1 1 1 2 1 4 1 1

2.0 ft 2 1 1

4.84 ft 2.70 ft

4 2 1 1 1 1 1 5 1 2 1 1 1 1 4 1

1 1 1 1 2 2 1 1 2 2

18



All Rtghts Reserved

manual, automatic hot melt melter/feeder retrofit kit...

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