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91904-3 Datasheet(PDF) 3 Page - TE Connectivity Ltd |
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91904-3 Datasheet(HTML) 3 Page - TE Connectivity Ltd |
3 / 5 page 408-8579 3 of 5 Rev C 6. Allow the tool handles to open fully and remove the crimped connector from the dies. Damaged product should not be used. If a damaged contact or ferrule is evident, it should be replaced with a new one. 5. CRIMP HEIGHT ADJUSTMENT (Figure 4) The tool frame assembly ratchet mechanism features an adjustment wheel with numbered settings. If the crimp height is not acceptable, adjust the ratchet as follows: 1. Remove the lockscrew from the ratchet adjustment wheel. 2. With a screwdriver, adjust the ratchet wheel from the opposite side of the tool. Figure 4 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 crimp height is acceptable, secure the lockscrew. If the dimension is unacceptable, remove lockscrew and continue to adjust the ratchet, and again measure a sample crimp. 6. MAINTENANCE AND INSPECTION 6.1. Maintenance 1. Remove dust, moisture, and other contaminants with a clean, soft brush, or a clean, soft, lint-free cloth. Do NOT use any objects that could damage the dies or tool. 2. Make sure that the proper die-retaining screws are properly secured. 3. When the dies are not in use, store them in a clean, dry area. 4. Store the tool with the tool handles closed to prevent objects from becoming lodged within the jaws. 6.2. Inspection 1. Remove all lubrication and accumulated film from the dies by immersing the dies in a suitable commercial degreaser. 2. Make certain that all die-retaining screws and die components are properly secured. 3. Inspect the crimping surfaces for flattened, chipped, worn, or cracked areas. If damage is evident, the dies must be replaced. Refer to Section 7, REPLACEMENT. 6.3. Measuring the Die Opening The die assembly will perform correctly as long as: • the product specified is correct for the application, • the specific die assembly is used, • the die assembly has been measured to ensure that the openings are correct, and • the tool has been adjusted correctly. Figure 5 provides information on die opening sizes. Die assembly 91901-1 will require a center contact crimp height inspection using a micrometer with a with a modified anvil as shown in Figure 6. Tyco Electronics does not manufacture or market these gages. However TE recommends use of the modified micrometer (Crimp Height Comparator) found in 408-7424. Refer to 408-7424 for instructions and ordering information of the crimp height comparators. Proceed with center contact crimp height inspection as follows: 1. Select an appropriate center contact and cable. 2. Crimp a test center contact. 3. Using crimp height comparator, measure wire barrel crimp height as shown in Figure 6. If the crimp height conforms to that shown in the table, the tool is considered dimensionally correct. If not, return the tool to Tyco Electronics for evaluation and repair (refer to Section 7, REPLACEMENT). CAUTION ! Screwdriver Ratchet Adjustment Wheel Lockscrew (Typ) |
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Similar Description - 91904-3 |
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