408-1542 Datasheet, PDF (5/7 Pages) TE Connectivity Ltd – Cumulative Trauma Disorders can result from the prolonged use of manually powered hand tools

408-1542
Figure 5
5.4. Gaging the Crimping Chambers (Figure 7)
This inspection requires the use of a plug gage conforming to the dimensions provided in Figure 6.
TE does not manufacture or market these gages. To gage the crimping chambers, proceed as follows:
Remove traces of oil or dirt from the crimping chambers and plug gage.
1. Close the tool handles until it is evident that the jaws have bottomed; then hold in this position. Do
NOT force the jaws beyond initial contact.
2. Align the GO element with the crimping chamber. Push element straight into the crimping chamber
without using force. The GO element must pass completely through the crimping chamber.
3. Align the NO-GO element and try to insert it straight into the same crimping chamber. The NO-GO
element may start entry, but must not pass completely through the crimping chamber.
NOTE
The jaws in Tools 49935 and 574573 are not symmetrically located; make sure that the tool conforms to the symmetry
requirements shown in Figure 8.
If the crimping chambers conforms to the gage inspection, the tool is considered dimensionally correct, and
should be lubricated with a THIN coat of any good SAE 20 motor oil. If not, the tool must be returned for further
evaluation and repair. Refer to Section 6, REPLACEMENT AND REPAIR.
For additional information regarding the use of a plug gage, refer to Instruction Sheet 408-7424.
5.5. Ratchet Inspection
The CERTI-CRIMP tool ratchet should be checked to ensure that the ratchet does not release prematurely,
allowing the jaws to open before they have fully bottomed. Obtain a 0.025 mm [.001 in.] shim suitable for
checking the clearance between the bottoming surfaces of the crimping jaws. Proceed as follows:
1. Select a terminal or splice, and properly stripped wire with maximum wire load (such as wire size 16
AWG and size 22-16 terminal).
2. Position the terminal or splice and wire between the crimping jaws, as described in Section 3.
3. Hold the wire in place and squeeze the handles until the CERTI-CRIMP tool ratchet releases. Hold the
handles in this position, maintaining just enough tension to keep the jaws closed.
4. Check the clearance between the bottoming surfaces of the crimping jaws. 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 6, REPLACEMENT AND REPAIR.
Rev P
5 of 7