3M 3640 Standard Assembly Press Instructions

: October 30, 2023
: 3M

Table of Contents

3M 3640 Standard Assembly Press
Product Information
Product Usage Instructions
General
Procedures for Adjusting Shut Height
Maintenance
References
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3M 3640 Standard Assembly Press

3M-3640-Standard-Assembly-Press-product

Product Information

3MTM Standard Assembly Press, 3640

The 3MTM Standard Assembly Press, 3640 is an industrial tool designed for the assembly of 3M electronic connectors. It is a manually operated portable tool that can also be fastened permanently to a workstation. The press can be used with 3M Locator Plates, Applicators, Platens, and Cable Cutters to assist in the assembly of a wide variety of connector and harness assemblies. These items are purchased independently from the 3M Assembly Press 3640. The press comes with a Shut Height Gauge, and a Locator Plate needs to be ordered separately for setting it up. The press can be used with Crimp Bar equipped with a sharp cut-off blade for assembling some connectors.

Product Usage Instructions

Shut Height Adjustment

Remove the locator plate or platen from the base of the assembly press.
Lower the handle of the press until it makes contact with the press casting.
Place the shut height gauge across the press base.
Rotate the shut height to lower or raise adjustment feature until the bottom of the shaft contacts the desired position on the shut height gauge.
Install the locator plate and the appropriate platen on the press.

Using Crimp Bar

For connectors assembled using a Crimp Bar equipped with a sharp cut-off blade instead of a Platen, follow these steps:

Press the Crimp Bar onto the press shaft.
To facilitate wire preparation, turn the Crimp Bar perpendicular to the connector length such that the blade faces away from you.

Using 3771 Base Plate (Optional)

The 3771 Base Plate provides additional stabilization for the 3M Assembly Press 3640 while maintaining its portable features. To use it, attach it to the press and follow the same shut height adjustment procedure.

Maintenance

The press should be kept clean and lightly oiled periodically. Use a few drops of S.A.E. 10 oil on the six pivot points and press shaft at least every 5,000 connections. It is not necessary to disassemble the press for lubrication.

Instructions for the use and adjustment of the 3M Assembly Press 3640

General

The 3M Assembly Press 3640 has been designed specifically for the assembly of 3M electronic connectors. All 3M Locator Plates, Applicators, Platens and Cable Cutters adapt to the 3M Assembly Press 3640 to assist in the assembly of a wide variety of connector and harness assemblies. All of these items are purchased independently from the 3M Assembly Press 3640.
The 3M Assembly Press 3640 is a manually operated portable tool that also can be fastened permanently to a work station.
Set up requires a Locator Plate which is ordered separately. Shipped with each locator plate is the appropriate Shut Height Gauge.
CAUTION: Some connectors are assembled using a Crimp Bar equipped with a sharp cut off blade instead of a Platen. Please use care in handling. The Crimp Bar is simply pressed onto the press shaft. To facilitate wire preparation, it is a good idea to turn the Crimp Bar perpendicular to the connector length such that the blade faces away from you.
CAUTION: Be sure the press head is in its upright and secured position when the machine is being transported. Remove all accessories before moving the press. Only lift the press by the base, do not lift or carry it by the handle.

Procedures for Adjusting Shut Height

Shut height settings are guidelines for proper termination depth. The adjustment settings are specified on the chart provided.

The shut height adjustment is made from the base of the assembly press without the locator plate or platen in place.
Lower the handle of the press until the handle casting makes contact with the press casting. (See Figure 3)
Place the shut height gauge across the press base. (See Figure 2)
Rotate the shut height to lower or raise adjustment feature until the bottom of the shaft contacts the desired position on the shut height gauge. (See Figure 3)
Install the locator plate and the appropriate platen on the press. The platen should be positioned parallel with the connector body and cover.

3771 Base Plate (Optional):

The 3771 Base Plate provides additional stabilization for the 3M Assembly Press 3640 while maintaining its portable features. It is available from your 3M distributor. (See Figure 4)

Maintenance

The press should be kept clean and lightly oiled periodically. Use a few drops of S.A.E. 10 oil on the six pivot points and press shaft at least every 5,000 connections. It is not necessary to disassemble the press for lubrication.
Shut Height Gauge – Diagram

Shut Height Gauge – Chart

Shut Height Gauge

3436-1X

| Part Number| Dim.

“A”

| Dim.

“B”

| “C”| “D”| Locator Plates

3443-XX

---|---|---|---|---|---|---
B| 78-8118-0892-8| 1.250| 1.275| 17| 17 1/2| 107N, 87, 91, 110, 100,

101M, 12, 13, 43, 71

C| 78-8118-0893-6| 1.425| 1.450| 21| 21 1/2| 106, 58
D| 78-8118-0894-4| 1.000| 1.025| 12| 12 1/2| 6, 94, 117, 125, 126
E| 78-8118-0904-1| .950| .975| 11| 11 1/2| 2, 8, 31
F| 78-8118-0905-8| 1.150| 1.175| 15| 15 1/2| 112, 118
G| 78-8118-0906-6| 1.050| 1.075| 13| 13 1/2| 20
H| 78-8118-0907-4| 1.275| 1.300| 17 1/2| 18| 113, 88
J| 78-8118-0908-2| 1.325| 1.350| 18 1/2| 19| 63
K| 78-8118-0909-0| .750| .775| 7| 7 1/2| 15, 16, 10, 47
L| 78-8118-0910-8| .800| .825| 8| 8 1/2| 33, 34
M| 78-8118-0911-6| .850| .875| 9| 9 1/2| 19
N| 78-8118-0912-4| 1.100| 1.125| 14| 14 1/2| 96

Regulatory: For regulatory information about this product, visit 3M.com/regs or contact your 3M representative.
Technical Information: The technical information, recommendations and other statements contained in this document are based upon tests or experience that 3M believes are reliable,
but the accuracy or completeness of such information is not guaranteed.
Product Use: Many factors beyond 3M’s control and uniquely within user’s control can affect the use and performance of a 3M product in a particular application. Given the variety of factors that can affect the use and performance of a 3M product, user is solely responsible for evaluating the 3M product and determining whether it is fit for a particular purpose and suitable for user’s method of application.
Warranty, Limited Remedy, and Disclaimer: Unless an additional warranty is specifically stated on the applicable 3M product packaging or product literature, 3M warrants that each 3M product meets the applicable 3M product specification at the time 3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE OR ANY IMPLIED WARRANTY OR CONDITION ARISING OUT OF A COURSE OF DEALING, CUSTOM OR USAGE OR TRADE. If the 3M Product does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s option, replacement of the 3M product or refund of the purchase price.
Limitation of Liability: Except where prohibited by law, 3M will not be liable for any loss or damage arising from the 3M product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability.
3M Company
Electronics Materials Solutions Division
13011 McCallen Pass, Bldg. C
Austin, TX 78753-5380
1-800-225-5373
www.3M.com/interconnect
3M Electronics Materials Solutions Division Interconnect Products 13011 McCallen Pass, Bldg. C Austin, TX 78753-5380 www.3Mconnectors.com
For technical, sales or ordering information call 800–225–5373