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307275-9 Datasheet(PDF) 4 Page - TE Connectivity Ltd |
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307275-9 Datasheet(HTML) 4 Page - TE Connectivity Ltd |
4 / 7 page 408- 2822 Rev B 4 of 7 5. CRIMP INSPECTION Inspect crimped terminals and splices by checking the features described in Figure 3. Use only the terminals and splices that meet conditions shown in the “ACCEPT” column. “REJECT” terminals and splices can be avoided through careful use of instructions provided in the machine manual and by performing regular die maintenance as instructed in Paragraph 6 of this Instruction Sheet. 6. DIE MAINTENANCE/INSPECTION PROCEDURE Disconnect power supply from tooling before any inspection, maintenance, adjustment, or repair. TE Connectivity recommends that a maintenance/inspection program be performed periodically to ensure dependable and uniform terminations. Frequency of inspection may be adjusted to suit your requirements through experience. Frequency of inspection depends on: 1. The care, amount of use, and handling of the dies. 2. Type and size of products being crimped. 3. Skill level of the operator. 4. Presence of abnormal amounts of dust and dirt. 5. Your own established standards. 6.1. Initial Die Inspection The dies are thoroughly inspected before shipping. The dies should be inspected immediately upon arrival at your facility to ensure the dies have not been damaged during shipment, and that they conform to Figure 7. If the dies are damaged upon arrival, retain the shipping container, file a claim with the carrier, and notify TE immediately. 6.2. Daily Maintenance It is recommended that each operator of the dies be made aware of — and responsible for — the following four steps of daily maintenance. 1. Remove dust, moisture, and other contaminants from the dies with a clean brush, or a soft, lint--free cloth. Do NOT use objects that could damage the dies. 2. Check the die alignment and tighten the die holding screws regularly. 3. Make certain the dies are protected with a THIN coat of any good SAE No. 20 motor oil. Do NOT oil excessively. 4. When the dies are not in use, store them in a clean, dry area. 6.3. Periodic Inspection Regular inspections should be performed by quality control personnel. A record of scheduled inspections should remain with the dies and/or be supplied to supervisory personnel responsible for the dies. Though recommendations call for at least one inspection a month, the inspection frequency should be based on the amount of use, ambient working conditions, operator training and skill, and established company standards. These inspections should be performed in the following sequence: 6.4. Visual Inspection 1. Remove all lubrication and accumulated film by immersing the dies in a suitable commercial degreaser that will not affect paint or plastic material. 2. Make sure all die holding screws, retaining rings, and die components are in place. Refer to the parts list in Figure 8 if replacements are necessary. 3. Check all bearing surfaces for wear. Remove and replace worn components. 4. Inspect the crimp area for flattened, chipped cracked, worn, or broken areas. Although dies may gage within permissible limits, worn or damaged die closure surfaces are objectionable and can affect the quality of the crimp. See Figure 4. If damage is evident, the dies must be repaired before returning them to service (See Paragraph 7, DIE REPLACEMENT AND REPAIR). 6.5. Die Closure Inspection Every die set is inspected for proper die closure dimensions before packaging. However, inspection of die closure for excessive wear is required periodically. Die closure inspection is accomplished using plug gages. TE neither manufactures nor sells plug gages. A suggested plug gage design and the GO and NO--GO dimensions for plug gage elements are given in Figures 5 and 6. For additional information concerning the use of a plug gage, refer to Instruction Sheet 408--7424. Clean oil or dirt from the die closure surfaces, bottoming surfaces, and plug gage elements. DANGER |
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