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Overview  |  Pierce Nut Standards  |  Part Design Guidelines  |  MultiPierce Reel-Feed Design Info   Multimatic Reel-Feed Design Info  |  MultiPierce Bulk-Feed Design Info 
Multimatic Bulk-Feed Design Info  |  Die Buttons and Retainers  |  Maintenance  |  Tooling Standards
Troubleshooting  |  Tooling Set-Up and Alignment Procedures  

Troubleshooting

Multipierce Head Assembly
Reel-Feed or Bulk-Feed System

Nose Sub-Assembly
Detail # Description Part # # Req'd
1 Nose Assembly HS/MP-XX-01-XXX See Below
1.1 Nose Body See Spare Parts List 1
1.2 Nose Plate See Spare Parts List 1
1.3 Plate-Retainer Proximity Probe 107955 1
1.4* T-Bar Nut Guide MS-143-XXX 1
1.5* Urethane Spring 00-250-XXX 1
1.6 Nose Plate Screw
(#10-32 x 1/2" SHCS)		   4
1.7 Proximity Plate Retainer Screw
 (#10-32 FHS)		   2
1.8 Roll Pin (3/16 Ø x 3/4 500269 2
*Earlier Models may still use the following items in place of 1.4 and 1.5 Assembly Numbers (not pictured)
1.9 Nut Control Ball Spring MS-9 3
1.10 Ball Spring Ring MS-10 3
1.11 Nut Control Ball (.25Ø) MS-11 3
6 Nut Holder Finger HS/MP-XX-06 2
7 Proximity Probe Assembly MSE-7PNP-CA 1
7.1 Probe MSE-7PNP-C 1
7.2 Cable 502353 1
10 Nut Holder Finger Pin MS-2  
For Multipierce Reel-Feed Head component part identification or ordering, refer to the above exploded view and corresponding parts list, with ordering information instructions.
Base Sub-Assembly
Detail # Description Part # # Req'd
2 Shank Assembly MP-COM-02-XXX See Below
3 Base Assembly MPS/MPNSM-COM-AB03  
3.1 Sleeve Bearing MS-144 1
4 Back-Up Plate MPS/MPNS-COM-04 1
5 Nut Plunger MP-XX-05-XXX 1
9 Main Compression Spring MS-1-XXX 1
11 Shank Stop Pin MS-3 1
12 Shank Stop Pin Plate MS-4N 1
13 Chute Attaching Block Lock Pin MS-5 1
14 Nose/Shank Assy. Screw
(2/8 x 24 NF x 1-1/2" SHCS)		 MS-14 2
15 Shank Stop Pin Plate Screw
(#10-32 x 3/8 SHCS)		 MS-16 2
15 Back-Up Plate Screw
(#10-32 x 3/8 SHCS)		 MS-16 2
16 Nut Plunger Stop Pin
(1/4" Ø x 1")		 MS-19 1
17 NPT Plug (1/8") MS-20 3
Red indicates Bulk Part Numbers

Ordering Information

When Ordering, specify:

  • Pierce Nut number
  • Length of Head extension (if any)
  • Alteration (if any)

 

Reel-Feed Adaptor Sub-Assembly
Detail # Description Part # # Req'd
8 Mechanical Reel-Feed Assembly MP/HSNC-XX-29 See Below
8.1 Spring Cap MPN-COM-30 1
8.2 Feed Pawl MPNC/HS-XX-31 1
8.3 Clevis MPN-COM-32 1
8.4 Housing Cover MPN-COM-33 1
8.5 Guide Housing MPN-COM-34 1
8.6 Spring Guide Rod and Knob MPN-COM-35 1
8.7 Feed Block MPNC/HSNC-XX-36 1
8.8 Feed Block Cover MPN-XX-37 1
8.9 Feed Pawl Spring (1/4 O.D. x 9/16") CS-3 1
8.10 Clevis Dowel (1/4 O.D. x 2-1/4" long) CS-4 1
8.11 Clevis Set Screw (#10-32 x 5/16") CS-10 1
8.12 Spring Cap Screws (#10-32 x 1-3/4" SHCS) CS-11 2
8.13 Roller Bearing CS-12 2
8.14 Retaining Ring CS-13 2
8.15 Guide Housing Dowel (1/4 O.D. x 3/4" long) CS-15 2
8.16* Feed Spring (11/16 O.D. x 7/16 I.D. x 4-1/2" long) MS-1 1
8.17 Feed Block Cover Screw MS-17 2
8.18 Guide Housing Stop MS-19 2
8.19 Guide Housing Cover Screws (#10-32 x 5/8" SHCS) MS-24 4
8.20 Restrictor Pin MS-103 1
8.21 Feed Block Screws (1/4-20 x 5/8" SHCS) MS-129 4
8.22 Restrictor 00-209 1
*For HS32, UP99 and HI 120 heads, use MS-1-25
Bulk-Feed Chute Attaching Sub-Assembly
Detail # Description Part # # Req'd
8 Chute Attaching Assembly MP/HS-XX-SN23 See Below
8.1 Chute Attaching Block MP/HS-XX-N10 1
8.2 Chute Attaching Block Cover Plate MP/HS-XX-SN11 1
8.3 Lower Chute Cover Plate Screw (1/4-20NC x 5/8" SHCS) MS-17 2
8.4 Dowel Pin (1/4" dia x 1/2") MS-33 2

Multimatic Head Assembly
Reel-Feed or Bulk-Feed System

 

Nose Sub-Assembly
Detail # Description Part # # Req'd
1 Nose Assembly HS/MP-XX-01-XXX See Below
1.1 Nose Body See Spare Parts List 1
1.2 Nose Plate See Spare Parts List 1
1.3 Plate-Retainer Proximity Probe 107955 1
1.4* T-Bar Nut Guide MS-143-XXX 1
1.5* Urethane Spring 00-250-XXX 1
1.6 Nose Plate Screw
(#10-32 x 1/2" SHCS)		 MS-115 4
1.7 Proximity Plate Retainer Screw
 (#10-32 FHS)		 MS-137 2
1.8 Roll Pin (3/16 Ø x 3/4 500269 2
*Earlier Models may still use the following items in place of 1.4 and 1.5 Assembly Numbers (not pictured)
1.9 Nut Control Bal Spring MS-9 3
1.10 Ball Spring Ring MS-10 3
1.11 Nut Control Ball (.25Ø) MS-11 3
6 Nut Holder Finger HS/MP-XX-06 2
7 Proximity Probe Assembly MSE-7PNP-CA 1
7.1 Probe MSE-7PNP-C 1
7.2 Cable 502353 1
10 Nut Holder Finger Pin MS-2  
Green Indicates Bulk Part Numbers
For Multimatic Reel-Feed Head component part identification or ordering, refer to the above exploded view and corresponding parts list, with ordering information instructions.
Base Sub-Assembly
Detail # Description Part # # Req'd
2 Shank MM/MMM-COM-02-XXX 1
3 Base MMMNCM-COM-AB03
MMSM-COM-AB03		 1
1
3.1 Sleeve Bearing MS-159 1
4 Back-Up Plate MMNS-COM-04
MMS-COM-04		 1
1
5 Nut Plunger MP-XX-05-XXX 1
9 Chute Attaching Block Lock Pin MS-5MM 1
11 Lock Pin Spring MS-60-XXX 1
12 Piston Head Retaining Screw MS-83 1
13 "O" Ring MS-88 1
14 Nose/Shank Assy. Screw
(3/8" x 24NF x 1-1/2" SHCS)		 MS-14 2
15 Back-Up Plate/Base Assembly Screw
(#10-32 x 3/8" SHCS)		 MS-16 4
16 Nut Plunger Stop Pin
(1/4"  x 1" Dowel)		 MS-19 3
17 NPT Plug (1/8") MS-20 1
18 Snap Ring (retaining screw) MS-10 1
19 "O" Ring MS-58 1
20 Flow Control Valve MS-41 1
21 Elbow - 90° (1/8") MS-44 1
22 Tube Fitting (1/8") 500649 2
23 Quick Disconnect Coupler (optional) MS-178 2
24 Quick Disconnect Nipple (optional) MS-179 2
25 NPT Female Elbow (1/8" x 1/8") MS-180 2
26 Cylinder Cap MM-COM-26-XXX 1
27 Piston Head MM-COM-27 1
28 NPT Close Nipple (1/8") MS-181 1
29 NPT Pipe Nipple (1/8" x 1/8") MS-182 1
Reel-Feel Adapter Sub-Assembly
Detail # Description Part # # Req'd
8 Mechanical Reel-Feed Assembly MP/HSNC-XX-29 See Below
8.1 Spring Cap MPN-COM-30 1
8.2 Feed Pawl MPNC/HS-XX-31 1
8.3 Clevis MPN-COM-32 1
8.4 Housing Cover MPN-COM-33 1
8.5 Guide Housing MPN-COM-34 1
8.6 Spring Guide Rod and Knob MPN-COM-35 1
8.7 Feed Block MPNC/HSNC-XX-36 1
8.8 Feed Block Cover MPN-XX-37 1
8.9 Feed Pawl Spring (1/4 O.D. x 9/16") CS-3 1
8.10 Clevis Set Screw CS-4 1
8.11 Clevis Set Screw (#10-32 x 5/16") CS-10 1
8.12 Spring Cap Screws (#10-32 x 1-3/4" SHCS) CS-11 2
8.13 Roller Bearing CS-12 2
8.14 Retaining Ring CS-13 2
8.15 Guide Housing Dowel (1/4 O.D. x 3/4" long) CS-15 2
8.16* Feed Srping (11/16 O.D. x 7/16 I.D. x 4-1/2" long) MS-1 1
8.17 Feed Block Cover Screw MS-17 2
8.18 Guide Housing Stop MS-19 2
8.19 Guide Housing Cover Screws (#10-32 x 5/8" SHCS) MS-24 4
8.20 Restrictor Pin MS-103 1
8.21 Feed Block Screws (1/4-20 x 5/8" SHCS) MS-24 4
8.22 Restrictor 00-209 1
For HS32, UP99 and HI 120 heads use MS-1-25
Bulk-Feed Chute Attaching Sub-Assembly
Detail # Description Part # # Req'd
8 Chute Attaching Assembly MP/HS-XX-SN23 See Below
8.1 Chute Attaching Block MP/HS-XX-N10 1
8.2 Chute Attaching Block Cover Plate MP/HS-XX-SN11 1
8.3 Lower Chute Cover Plate Screw (1/4-20NC x 5/8" SHCS) MS-17 2
8.4 Dowel Pin (1/4" dia x 1/2") MS-33 2

Green indicates Bulk Part Numbers

Ordering Information

When Ordering, specify:

  • Pierce Nut number
  • Length of Head extension (if any)
  • Alteration (if any)

Operating Sequence for Multimatic Heads

Synchromatic Press Lines, Transfer Dies and Progressive Dies

Multimatic Heads remain closed (retracted) until a panel presence is sensed, energizing the four-way solenoid valve.  The valve transfers the air supply from the lower to the upper manifold, opening (extending) the Heads and allowing a nut to flow into the "ready" position under the plunger.

As the press cycles the Pierce Nuts are installed at at 190 degrees (10 degrees into the upstroke), the rotary cam limit switch closes and energizes the solenoid valve reversing the air supply from the upper to the lower manifold.  From the lower manifold the air supply is distributed to the underside of the pistons in the Multimatic Heads and air is exhausted from the top of the pistons through the upper manifold closing the Heads.

The Heads remain closed until the part presence sensor again signals the presence of a panel.  With Heads closed, the flow of Pierce Nuts is blocked by the plungers.  If a panel fails to enter the die, the press cycles with Heads locked in the closed position preventing nuts from being deposited in the die on the next press stroke.

An adjustable flow valve meters the air escapement from under the piston to reduce the impact of the piston head on its base.  It is preset for the best opening speed but may be adjusted to allow a faster or slower Head opening.

Nut Dies

The operation of the Multimatic Head in a nut die is similar except that the press will not cycle in the run position until a panel is in position.

System Schematic for Multimatic Heads

NOTE:  Parts shown in green are available through FabriSteel Products, Inc.; other parts are provided by customer.

Troubleshooting

Multipierce

During die tryout of the Multipierce Installation Head (and during normal operation) certain conditions may occur which may be easily corrected.

Pre-Load Unit (Move feed pawl back one nut) by pulling back knob.

  1. No Nut Is Deposited in Panel

    1. Bulk and Reel-Feed Heads

      1. No nuts in Head (check nut supply or obstruction in feed system).

      2. Head improperly assembled (check for proper assembly).

      3. Head failing to open fully (see condition/solution, below)

      4. Improper shut height setting (check ram setting).

    2. Bulk Feed Head

      1. Obstruction in chuting or chute attaching block (shut off nut flow and clear blockage).

      2. Nut jammed in Head (remove chute attaching block and clear jammed nut from Head).

    3. Reel Feed Head

      1. Nut strip not engaged with anti-backup restrictor (check for damaged restrictor).

      2. Damaged feed mechanism (repair or replace).

      3. Nut strip not loaded all the way into head (push strip fully into Head).

  2. Partial Nut Deposited in Panel

    1. Bulk-Feed Head

      1. Broken or damaged proximity probe (remove and inspect probe, replace if necessary).

      2. Obstruction in chuting or chute attaching block (shut off nut flow and clear blockage).

      3. Nut jammed in head (remove chute attaching block and clear jammed nut from Head).

    2. Reel-Feed Head

      1. Damaged feed mechanism (remove Reel-Feed Adapter and repair).

      2. Nut reel not rotating freely (check for flat spot on nut reel).

      3. Nuts not engaged by restrictor

  3. Head Fails to Open Fully

    1. Bulk and Reel Feed Heads

      1. Shank spring broken (remove and replace).

      2. Severely galled shank (remove Head assembly, inspect shank, replace if necessary).

  4. Head Fails to Close in Die

    1. Bulk and Reel-Feed Heads

      1. Improper shut-height setting (check ram setting).

      2. Check for obstruction in shank clearance hole in die shoe.

Multimatic

During die tryout of the Multimatic Installation Head (and during normal operation) certain conditions may occur which may be easily corrected

"Cock" unit my moving feed pawl back one nut.

  1. No Nut is Deposited in Panel

    1. Bulk and Reel-Feed Heads

      1. No nuts in Head (check nut supply or obstruction in feed system).

      2. Head improperly assembled (check for proper assembly).

      3. Head failing to open fully (see condition/solution, below).

      4. Improper shut height setting (check ram setting).

    2. Bulk-Feed Head

      1. Obstruction in chuting or chute attaching block (shut off nut flow and clear blockage).

      2. Nut jammed in Head (remove chute attaching block and clear jammed nut from Head).

    3. Reel-Feed Head

      1. Nut strip not engaged with anti-backup restrictor (check for damaged restrictor).

      2. Damaged feed mechanism (repair or replace).

      3. Nut strip not loaded all the way into head (push strip fully into Head).

  2. Partial Nut Deposited in Panel

    1. Bulk-Feed Head

      1. Broken or damaged proximity probe (remove and inspect probe, replace if necessary).

      2. Obstruction in chuting or chute attaching block (shut off nut flow and clear blockage).

      3. Nut jammed in head (remove chute attaching block and clear jammed nut from Head).

    2. Reel-Feed Head

      1. Damaged feed mechanism (remove Reel-Feed Adapter and repair).

      2. Nut reel not rotating freely (check for flat spot on nut reel(.

      3. Nuts not engaged by restrictor

  3. Head Fails to Open or Fully Open

    1. Bulk and Reel-Feed Heads

      1. Check air lines

      2. Part panel not sensed

      3. Faulty Solenoid

      4. Piston catching on cylinder

      5. Severely galled shank (remove Head assembly, inspect shank, replace if necessary)

  4. Head Fails to Close in Die

    1. Bulk and Reel-Feed Heads

      1. Improper shut-height setting (check ram setting).

      2. Check for obstruction in shank clearance hole in die shoe.

Assembly/Disassembly - Multipierce

The Multipierce Installation Heads may be easily repaired using the following procedures.  Most repairs and part replacements can be made without removing the Head from the die or fixture, keeping "downtime" to a minimum.

Chute Attaching Block - Removing/Installing Chute Attaching Block or Reel-Feed Adapter

Removal:

  • For bulk nuts, block nut flow at hole (J) in chute attaching block (A) by inserting pin.  For Strip Pierce nuts, remove nut strip from Reel-Feed Adaptor.
  • Insert cam key into any of three holes (K) in the shank.  Rotate the cam key to pry up lock pin (G) and pull chute attaching block or Reel Feed Adaptor from Head.

Installation:

  • Insert chute attaching block or Reel-Feed Adaptor (A).  Make certain lock pin engages when chute attaching block or Reel-Feed Adaptor is inserted.
  • For bulk nuts, remove device used to block nut flow from hole (J) in chute attaching block.  For Strip Pierce nuts, insert nut strip into Reel-Feed Adaptor.

Nose Assembly - Removing or Installing Nose Assembly

Removal:

  • Remove chute attaching block or Reel-Feed Adapter (A).
  • Disconnect plug (B).
  • Support nose (Q) and remove two shank screws (P).
  • Slide nose assembly down off plunger (D).

Installation:

  • Position nose assembly on plunger and install two shank screws (P).  Note:  fingers must be aligned to allow plunger to pass through nose.
  • Plug in electrical nut stop pin lead wire (B).
  • Install chute attaching block or Reel-Feed Adapter (A).

Nose and Shank Assemblies - Removing or Installing Nose and Shank Assemblies

Removal:

  • Remove chute attaching block or Reel Feed Adaptor (A)
  • Disconnect plug (B).
  • Remove screws (C) and disengage pin plate from shank stop pin.
  • Use a pry bar and apply force on shank to relieve spring pressure on shank stop pin (E) and remove pin.  Slowly release spring pressure.
  • Chute attaching block lock pin (G) and shank spring (H) will come out with the shank.

Installation:

  • Insert chute attaching block or Reel-Feed Adaptor lock pin (G) in shank with pin through the bottom of the shank, then insert shank spring (H) on top of lock pin.
  • For bulk nuts only, position shank (K) and nose (Q) in Head and install set screw (F).
  • Use a pry bar and apply force to shank to compress shank spring and install shank stop pin (E) so that pin enters slot in shank.
  • Engage stop pin plate with shank stop pin and tighten plate screw (C).
  • Connect plug (B).
  • Install cute attaching block or Reel-Feed Adaptor (A), as previously described.

Head Assembly - Removing or Installing Head Assembly

Removal:

  • Remove chute attaching block or Reel-Feed Adaptor (A).
  • Disconnect plug (B).
  • Remove screws (C) and disengage pin plate from shank stop pin.
  • Use a pry bar and apply force on shank to relieve spring pressure on shank stop pin (E) and remove pin.  Slowly release spring pressure.
  • Remove plug clamp and screw (R) from base.
  • Remove socket head screws (S).  Tap base with a soft hammer and pry loose from the die shoe dowel pins.

Installation:

  • Position base assembly on dowel pins in die shoe and install socket head screws (S).
  • Attach plug to base with clamp and screw (R).
  • Use a pry bar and apply force to shank to compress shank spring and install shank stop pin (E) so that pin enters slot in shank.
  • Engage stop pin plate with shank stop pin and tighten plate scres (C).
  • Connect plug (B).
  • Install chute attaching block or Reel-Feed Head Adaptor (A).

 
 

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FabriSteel A Division of Whitesell International Corporation
22100 Trolley Industrial Drive
Taylor, MI  48180-1872
(313) 299-8540

 

This page last modified 02/16/07 .
All information © 2007 Whitesell International Corporation

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