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307543-3 Datasheet(PDF) 5 Page - TE Connectivity Ltd |
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307543-3 Datasheet(HTML) 5 Page - TE Connectivity Ltd |
5 / 8 page 408- 1697 5 of 8 Rev C 4. MAINTENANCE AND INSPECTION PROCEDURES TE Connectivity recommends that a maintenance and inspection program be performed periodically to ensure dependable and uniform terminations. Dies should be inspected at least once a month. Frequency of inspection may be adjusted to suit your requirements through experience. Frequency of inspection is dependent upon: S The care, amount of use, and handling of the dies. S The type and size of the products crimped. S The degree of operator skill. S The presence of abnormal amount of dust and dirt. S Your own established standards. Since there is a possibility of die damage in shipment, new dies should be inspected in accordance with the following instructions when received in your plant. 4.1. Cleaning Do not allow deposits of dirt, grease, and foreign matter to accumulate in the die closure surfaces and on the bottoming surfaces of the dies. These deposits may prevent the dies from bottoming fully and may also cause excessive wear in the die closure surfaces, thereby affecting the quality of the crimp. The dies should be wiped clean frequently with a clean cloth. 4.2. Visual Inspection Visually inspect the die closure surfaces for broken, pitted, or chipped areas. Although dies may gage within possible limits, worn or damaged die closure surfaces are objectionable and can affect the quality of the crimp. Examples of possible damaged die closure surfaces are shown in Figure 8. 4.3. Die Closure Inspection Every die set is inspected for proper die closure before packaging. An inspection should be performed periodically to check the die closure for excessive wear. The die closure inspection is accomplished using the GO NO--GO plug gage. TE neither manufactures nor sells plug gages. A suggested plug gage design and the GO NO--GO dimensions of the plug gage members are listed in Figure 9. The following procedure is recommended for inspecting the die closure. Dies for the 69097 Tool 1. Clean oil and dirt from the die closure surfaces and plug gage members. 2. Assemble the dies so that they are bottomed but not under pressure. See Figure 10, Detail “A”. Dies for the 69099 Tool 1. Clean oil and dirt from the die closure surfaces and plug gage members. 2. Assemble and adjust the dies to meet the “gage dimension” indicated in Figure 10, Detail “A”. 3. With the crimping dies assembled as described in steps 1 and 2, check the wire barrel crimp die closure using the proper plug gage. Hold gage in straight alignment with the die closure and carefully try to inset them without forcing the GO member as shown in Figure 10, Detail “A”. The GO member must pass completely through the die closure as shown in Figure 10, Detail “B”. 4. Try to insert the NO--GO member. The NO--GO member may enter partially, but must not pass completely through the die closure. See Figure 10, Detail “B”. 5. If the dies meet the GO NO--GO gage conditions, the dies may be considered dimensionally correct. If you find that the dies no not conform with the GO NO--GO gage conditions, contact your local TE Field Representative. Figure 8 Chipped Area Flattened Area Pitted Area |
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