408-4354

PRO-CRIMPER III Hand Crimping Tool Assembly 58591-1

3 of 5

Rev A

Tyco Electronics Corporation

1. Make a sample crimp and determine if 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.

The ratchet has detents that create audible clicks

as the tool handles are closed.

3. Place a contact with wire into the proper nest

and close the tool handles until the ratchet reaches

the sixth click, or until the contact support touches

the contact.

4. Slightly loosen the nut that holds the locator

assembly onto the tool frame.

5. Move the contact support as required to

eliminate the bending of the contact.

6. Tighten the nut and close the handles until the

ratchet releases.

7. Remove and inspect the contact.

8. Make another sample crimp. If the contact is

straight, tighten the contact support screw. If the

contact is still being bent during crimping, repeat

the adjustment procedure.

5. CRIMPING PROCEDURE

This tool is provided with a crimp adjustment

feature. Initially, the crimp height should be

verified as specified in Figure 4. Refer to Section

6, CRIMP HEIGHT INSPECTION, and Section 7,

RATCHET ADJUSTMENT, to verify crimp height

before using the tool to crimp desired contacts

and wire sizes.

Refer to the table in Figure 1 and select wire of the

specified size and insulation diameter. Strip the wire

to the length indicated in Figure 1, taking care not to

nick or cut wire strands. Select an applicable contact

and identify the appropriate crimp section according

to the wire size markings on the tool. Refer to

Figure 3 and proceed as follows:

1. Hold the tool so that the back (wire side) is

facing you. Squeeze tool handles together and

allow them to open fully.

2. Holding the contact by the mating end, insert the

contact — insulation barrel first — through the front

of the tool and into the appropriate crimp section.

3. Position the contact so that the mating end of

the contact is on the locator side of the tool, and so

that the open “U” of the wire and insulation barrels

must face the top of the tool. Place the contact up

into the nest so that the movable locator drops into

the slot in the contact. Refer to Figure 3. Butt the

front end of the wire barrel against the movable

locator.

Make sure that both sides of the insulation barrel

are started evenly into the crimping section. Do

NOT attempt to crimp an improperly positioned

contact.

Figure 3

Adjustment

Screw for

Contact

Support

Contact

Support

Locator

Back of Tool

(Wire Side)

Wire

Contact

(Typ)

Locator in

Wire Stop Slot

Wire

Inserted

to Stop

Strip

Length

Wire

Seal

Wire

Seal

NOTE

i

NOTE

i

CAUTION

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