TE Connectivity 2031991-1 User manual

Instruction Sheet

1 of 8

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PRODUCT INFORMATION

1-800-522-6752

This controlled document is subject to change.

For latest revision and Regional Customer Service,

visit our website at www.te.com.

408-10216

24 OCT 2022 Rev B

PROPER USE GUIDELINES

Cumulative trauma disorders can result from the prolonged use of manually powered hand tools. Hand tools are intended for occasional

use and low-volume applications. A wide selection of powered application equipment is available for extended-use production operations.

The SDE-SA hand tool is a commercial-grade tool. Product crimped with this tool meets the wire barrel crimp height requirement for hand

tools in the appropriate 114 application specification but might not comply with other feature parameters of the specification.

Figure 1: SDE-SA Commercial Hand Tool Assembly 2031991-1 with Die Assembly 2031991-2

Die set 2031991-2

Nut

Handle

Wire crimper (upper die)

Locator assembly

Die-retaining screws (2)

Insulation crimper (upper die)

Stationary jaw

Die-retaining spring pins (4)

Wire anvil (lower die)

Moving jaw

Insulation anvil (lower die)

Ratchet adjustment wheel

SDE-SA Commercial Hand Tool Assembly

PN 2031991-1 with

Die Assembly PN 2031991-2

408-10216

Rev B

2 of 8

1. INTRODUCTION

SDE Crimp Commercial Hand Tool Assembly 2031991-1 for the JUNIOR POWER TIMER contacts is the tool

and die set shown in Figure 1. The tool consists of the SDE Crimp Frame Assembly 2362810-1 (instruction

sheet 408-35143) and the die assembly listed in Figure 1. This tool is used to crimp the terminal part numbers

listed in Table 1.

Table 1: Crimping specifications

Crimp tooling

Terminal P/N

Cable

Wire insulation mm

SDE-SA tool

Die assembly

only

Wire size

mm2

Number of

conductors

Diameter

Strip length

2031991-1

2031991-2

929929

929938

927766

963979

929937

1.5-2.5

2.2-30

5.2±0.3

929930

929940

927770

963978

929939

0.5-1.0

1.4-2.1

4.7±0.3

929931

929942

927772

963977

929941

0.2-0.5

1.2-1.6

4.2±0.3

927776

927774

963972

1.0-1.6

3.5±0.3

NOTE

Dimensions in this instruction sheet are in millimeters with [inches in brackets]. Figures are for reference only and are not

drawn to scale.

Read these instructions thoroughly before crimping connectors.

2. DESCRIPTION

The tool frame features two jaws, a handle, and a ratchet adjustment wheel. The die set consists of a crimper

(upper die) and an anvil (lower die). The tool frame holds a die assembly with four crimping chambers (see

Figure 1). Die-retaining spring pins and screws are used to secure the dies in the tool frame.

The tool features a ratchet and an adjustment wheel with a range of settings. The ratchet ensures that the tool

has completed the cycle and does not release until the handles have been fully closed. The adjustment wheel

controls the amount of handle pressure exerted on the dies during the crimping procedure.

CAUTION

The dies bottom before the ratchet releases. This feature ensures maximum tensile performance of the crimp. Do not re-

adjust the ratchet unless you have verified that the crimp height is incorrect (see section 8, ADJUSTING THE RATCHET).

408-10216

Rev B

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3. INSTALLING THE DIE SET AND LOCATOR ASSEMBLY

1. Open the tool handles.

2. Remove the two die-retaining screws from the tool jaws (see Figure 1).

3. Insert the wire and insulation anvils in the moving jaw of the tool frame with their chamfered sides and

the marked surfaces facing outward.

4. Insert two die-retaining spring pins.

5. Insert the short die-retaining screw through the jaw and through the anvil dies. Tighten the screw just

enough to hold the dies in place. Do not tighten the screw completely.

6. Insert the wire and insulation crimpers in the stationary jaw of the tool frame with their chamfered sides

and the marked surfaces facing outward.

7. Insert the other two die-retaining spring pins.

8. Insert the long die-retaining screw through the jaw and through the crimper dies. Tighten the screw just

enough to hold the dies in place. Do not tighten the screw completely.

9. Carefully close the tool handles, making sure the anvil and crimper align properly. Continue closing the

tool handles until the ratchet in the tool frame has engaged sufficiently to hold the dies in place.

10. Tighten both die-retaining screws.

11. Place the locator assembly over the end of the long screw and position the locator assembly against

the side of the tool jaw.

12. Place the nut onto the end of the long screw and tighten the nut enough to hold the locator assembly in

place.

4. REMOVING THE DIE SET AND LOCATOR ASSEMBLY

1. Close the tool handles until the ratchet releases.

2. Remove the nut, the locator assembly, the two die-retaining screws, and the four die-retaining spring

pins.

3. Slide the dies out of the tool jaws.

NOTE

The ratchet release has detents with audible clicks as the handles are closed. The ratchet releases on the sixth click.

408-10216

Rev B

4 of 8

5. CRIMPING

NOTE

The tool is provided with a crimp adjustment feature. Initially, the crimp height should be verified as specified in Figure 4. Refer

to section 7, INSPECTING THE CRIMP HEIGHT, and section 8, ADJUSTING THE RATCHET, to verify crimp height before

using the tool.

1. Select a wire of the correct size and insulation diameter for the terminal (see Table 1).

2. Strip the wire to the length listed in Table 1. Do not nick or cut wire strands.

3. Select an applicable contact and identify the appropriate crimp section according to the wire size

markings on the tool.

4. Hold the tool so that the back (wire side) is facing you. (See Figure 2.) Squeeze the tool handles

together and allow them to open fully.

5. While holding the contact by the mating end, insert the contact through the front of the tool and into the

appropriate crimp section.

6. Position the contact so that the U of the wire barrel faces the top of the tool.

7. Insert the contact up into the nest so that the wire barrel is against the spring-loaded locator.

CAUTION

Make sure that both sides of the wire barrel are started evenly into the crimping section. Do not attempt to crimp an

improperly positioned contact.

8. Close the handles of the tool until the contact is lightly held by the die set, but is not deformed to the

point where the wire cannot enter freely.

9. Insert the wire into the crimp barrel of the contact until it butts against the spring-loaded locator.

10. While holding the wire in place, fully cycle the tool until the ratchet releases and allows the handle to

open.

Figure 2: Crimping

Die assembly (for reference only)

Locator in wire stop slot

Locator

Contact (typical)

Back of tool (wire side)

Strip length

Wire

Wire inserted to stop

408-10216

Rev B

5 of 8

6. ADJUSTING THE CONTACT SUPPORT

The contact support is preset prior to shipment, but minor adjustments might be necessary. Refer to Figure 3

and proceed as follows:

1. Make a sample crimp and determine whether the contact is straight, bending upward, or bending

downward.

2. If adjustment is required, loosen the screw that holds the contact support onto the locator assembly.

3. Insert a contact with wire into the proper nest and close the handles until the ratchet reaches the sixth

click, or until the contact support touches the contact.

4. Move the contact support as required to eliminate the bending of the contact.

5. Tighten the screw and close the handles until the ratchet releases.

6. Remove and inspect the contact.

7. Make another sample crimp. If the contact is still bent during crimping, repeat the adjustment

procedure.

Figure 3: Contact support adjustment

Contact support

Contact support screw

Die assembly (for reference only)

408-10216

Rev B

6 of 8

7. INSPECTING THE CRIMP HEIGHT

Crimp height inspection is performed using a micrometer with a modified anvil, commonly referred to as a

crimp-height comparator. TE Connectivity does not manufacture or market crimp height comparators. Detailed

information on obtaining and using crimp-height comparators can be found in instruction sheet 408-7424.

1. Refer to Table 1 and select a wire (maximum size) for each crimp section listed.

2. Refer to section 5, CRIMPING, and crimp the contacts accordingly.

3. Using a crimp height comparator, measure the wire barrel crimp height listed in Table 2.

If the crimp height conforms to that shown in the table, the tool is considered dimensionally correct.

If not, adjust the tool. Refer to section 8, ADJUSTING THE RATCHET.

CAUTION

Do not use damaged product. If a damaged contact is evident, replace it. Do not re-terminate contacts.

Figure 4: Crimp height

Modified anvil

Position point on center of wire barrel opposite seam

Crimp height (see Table 2)

Table 2: Crimp height specifications

Die assembly

Wire size max

mm2

Crimp section

(wire size markings)

Crimp height mm

2031991-2

2.5

1.50-2.50

1.56±0.05

1.0

0.50-1.00

1.23±0.05

0.5

0.20-0.50

1.03±0.05

0.5

0.20-0.50

1.03±0.05

408-10216

Rev B

7 of 8

8. ADJUSTING THE RATCHET

The ratchet is preset prior to shipment, but it is important to verify the crimp height using a micrometer or

caliper. Use and wear can cause the tool to go out of adjustment. Inspect the crimp height and adjust the

ratchet, if necessary, on a regular basis.

To adjust the ratchet, complete the following steps.

1. Remove the ratchet wheel lock screw (Figure 5).

2. Rotate the adjustment wheel.

If the crimp height is larger than recommended, rotate the adjustment wheel counter-clockwise ()

to a higher setting.

If the crimp height is smaller than recommended, rotate the adjustment wheel clockwise (–) to a

lower setting.

3. Reinstall the lock screw.

4. Make a sample crimp and measure the crimp height.

5. Repeat as required.

If the crimp height cannot be made to conform to the recommended crimp height, replace the tool or die

set. See section 10, REPLACEMENT AND REPAIR.

Figure 5: Ratchet adjustment

Lock screw

Ratchet adjustment wheel

408-10216

Rev B

8 of 8

9. MAINTENANCE AND INSPECTION

9.1. Maintenance

Remove dust, moisture, and other contaminants with a clean, soft brush or soft, lint-free cloth. Do not

use objects that could damage the dies or tool.

When the tool is not in use, keep the handles closed to prevent objects from becoming lodged in the

dies.

Remove all lubrication and accumulated film by immersing the dies in a suitable commercial degreaser.

Store the tool in a clean, dry area.

9.2. Visual inspection

Inspect the tool and dies on a regular basis to ensure that they are not worn or damaged.

Make sure that the die retaining screws are properly secured.

Inspect the crimping chambers of the die assembly for flattened, chipped, worn, or broken areas.

If damage or abnormal wear is evident, replace the tool or dies. Refer to section 10, REPLACEMENT

AND REPAIR.

10. REPLACEMENT AND REPAIR

If the dies are damaged or worn excessively, they must be replaced. Order replacement dies through your TE

representative. You can also order parts by any of the following methods:

Go to TE.com and click the Shop TE link at the top of the page.

Call 800-522-6752.

Write to:

CUSTOMER SERVICE (038-035)

TE CONNECTIVITY CORPORATION

PO BOX 3608

HARRISBURG PA 17105-3608

For customer repair services, call 800-522-6752.

11. REVISION SUMMARY

Revisions to this instruction sheet include:

Updated part number and instruction sheet for tool frame

Reformatted to match current standard for instruction sheets

This manual suits for next models

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