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90574-2 Datasheet(PDF) 4 Page - Tyco Electronics |
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90574-2 Datasheet(HTML) 4 Page - Tyco Electronics |
4 / 6 page 408- 9886 PRO- CRIMPER III Hand Crimping Tool Assembly 90574- 1 Rev C 4 of 6 Tyco Electronics Corporation 5. Insert stripped wire into contact insulation and wire barrels until it is butted against the wire stop, as shown in Figure 3. 6. Holding the wire in place, squeeze tool handles together until ratchet releases. Allow tool handles to open and remove crimped contact. The crimped contact may stick in the crimping area, but the contact can be easily removed by pushing downward on the top of the locator (see Figure 3). 7. Check the contact’s crimp height as described in Section 6, CRIMP HEIGHT INSPECTION. If necessary, adjust the crimp height as described in Section 7, RATCHET (Crimp Height) ADJUSTMENT. 6. CRIMP HEIGHT INSPECTION Crimp height inspection is performed through the use of a micrometer with a modified anvil, commonly referred to as a crimp--height comparator. Tyco Electronics 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. Proceed as follows: 1. Refer to Figure 4 and select a wire (maximum size) for each crimp section listed. 2. Refer to Section 5, CRIMPING PROCEDURE, and crimp the contact(s) accordingly. Position Point on Center of Wire Barrel Opposite Seam “A” Modified Anvil Wire Size Crimp Section Crimp Height Dimension A and Wire Size AWG (Max) Crimp Section (Wire Size Marking) Dimension A and Tolerance (+) 20 24--20 .978 + .051 [.0385 + .0020] 18 18 1.245 + .051 [.0490 + .0020] Figure 4 3. Using a crimp height comparator, measure the wire barrel crimp height as shown in Figure 4. If the crimp height conforms to that shown in the table, the tool is considered dimensionally correct. If not, the tool must be adjusted. Refer to Section 7, RATCHET (Crimp Height) ADJUSTMENT. 7. RATCHET (Crimp Height) ADJUSTMENT (Figure 5) 1. Remove the lockscrew from the ratchet adjustment wheel. Figure 5 Screwdriver Ratchet Adjustment Wheel Lockscrew (Typ) 2. With a screwdriver, adjust the ratchet wheel from the locator side of the tool. 3. Observe the ratchet adjustment wheel. If a tighter crimp is required, rotate the adjustment wheel COUNTERCLOCKWISE to a higher--numbered setting. If a looser crimp is required, rotate the adjustment wheel CLOCKWISE to a lower--numbered setting. 4. Replace the lockscrew. 5. Make a sample crimp and measure the crimp height. If the dimension is acceptable, replace and secure the lockscrew. If the dimension is unacceptable, continue to adjust the ratchet, and again measure a sample crimp. 8. MAINTENANCE Ensure that the tool and dies are clean by wiping them with a clean, soft cloth. Remove any debris with a clean, soft brush. Do not use objects that could damage the tool. When not in use, keep handles closed to prevent objects from becoming lodged in the crimping dies, and store in a clean, dry area. NOTE i |
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