Tyco Electronics 45449 Instruction Sheet Download Page 4

408-1548

Hand Crimping Tools 45449 and 45450

Rev C

4 of 5

Tyco Electronics Corporation

Figure 6

Tool

Crimping Jaws

Bottomed

Gage May be Inserted

in Either Side of Tool

When Gaging Wire

Barrel Die

Plug Gage

Wire Barrel

Die

Wire Barrel

Die

Insulation Barrel

Die

Insulation Barrel

Die

GO" Gage Must Pass Completely

Through the Crimping Surface

NO-GO" Gage May Enter Partially, but

Must Not Pass Completely Through the

Length of the Crimping Surface

Inspection of Wire Barrel

Crimping Dies with Plug Gage

Inspection of Insulation Barrel

Crimping Dies with Plug Gage

4.5. CERTI-CRIMP Ratchet Inspection

The CERTI–CRIMP ratchet feature on hand tools
should be checked to ensure that the ratchet does not
release prematurely, allowing the crimping dies to
open before they have fully bottomed. Obtain a
0.025–mm [.001–in.] shim that is suitable for checking
the clearance between the bottoming surfaces of the
crimping dies. Proceed as follows:

1. Select the maximum size wires and strip them
according to dimensions listed in Figure 2.

2. Select splice corresponding to the selected wire
size (refer to Figure 2).

3. Position the splice and wires between the
crimping dies, as described in Section 3,
CRIMPING PROCEDURE.

4. Hold the splice and wires in place and squeeze
the handles until the CERTI–CRIMP ratchet
releases. Hold the handles in this position,
maintaining just enough tension to keep the dies
closed.

5. Check the clearance between the bottoming
surfaces of the crimping dies. If the clearance is
0.025 mm [.001 in.] or less, the ratchet is
satisfactory. If clearance exceeds 0.025 mm
[.001 in.], the ratchet is out of adjustment and must
be repaired. See Section 5, REPLACEMENT AND
REPAIR.

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