408- 9177

Die Assemblies 47378- 1, 48756- 1, and 48757- 1

3

of 5

Rev C

Tyco Electronics Corporation

Figure 4

2

Correct color code and die combination must be used

(terminal insulation color matches color code on dies).

3

Wire size used must be the same as the wire size

embossed on terminal insulation and stamped on terminal

tongue.

4

Crimp centered on wire barrel.

end of terminal wire barrel.

(AMPLI--BOND terminals contain wire insulation “grip” and

PLASTI--GRIP terminals contain wire insulation “support”).

Refer to Section 4.

2

5

1

3

4

5

4

6

4

4

7

7

Terminal Crimp

Inspection

Frequency of inspection depends on:

1. The care, amount of use, and handling of the

die assembly.

2. The type and size of the product crimped.

3. The degree of operator skill.

4. The presence of abnormal amounts of dust and

dirt.

5. Your own established standards.

Each die assembly is thoroughly inspected before

packaging. Since there is the possibility of damage

during shipment, the die assembly should be

inspected immediately upon arrival at your facility in

accordance with Paragraph 5.3, Gaging the Crimping

Chamber, and Figure 6.

5.1. Cleaning

1. Remove dust, moisture, and other contaminants

with a clean brush, or a soft lint--free cloth. Do

NOT use objects that could damage the dies.

2. Make certain the dies are protected with a THIN

coat of any good SAE 20 motor oil. Do NOT oil

excessively.

3. When the dies are not in use, mate and store

them in a clean, dry area.

5.2. Visual Inspection

1. Check all bearing surfaces for wear. If parts are

missing or defective, replace them by referring to

Figure 6.

2. Inspect the crimp area for flattened, chipped, or

broken areas. Although the crimping chamber may

gage within permissible limits, worn or damaged

die closure surfaces are objectionable and will

affect the quality of the crimp.

5.3. Gaging the Wire Barrel Crimping Chamber

This inspection requires the use of plug gages

conforming to the dimensions shown in Figure 5. Tyco

Electronics does not manufacture or market these

gages.

1. Remove die assembly from crimping head.

Refer to the instructions packaged with the

crimping head.

2. Remove the socket head cap screws and the

locator block from the moving die.

3. Remove oil and dirt from crimping surfaces and

plug gage elements.

4. Mate the dies until they are bottomed, but not

under pressure.

5. Using the suggested plug gage design, as

shown in Figure 5, align the GO element with the

wire barrel crimping chamber. Push the element

straight into the crimping chamber without using

force. The GO element must pass completely

through the crimping chamber, as shown in

Figure 5.

6. Align the NO--GO element and try to insert it

into the same crimping chamber. The element may

start entry, but will not pass completely through the

crimping chamber. See Figure 5.

If the crimping chamber conforms to the gage

inspection, the die assembly is considered

dimensionally correct and should be lubricated with a

THIN coat of any good SAE 20 motor oil. If the

crimping chamber does not conform to the plug gage

dimensions, the dies must be repaired before

returning them to service (refer to Section 6,

REPLACEMENT AND REPAIR).

For additional information concerning the use of the

plug gage, refer to Instruction Sheet 408--7424.