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1490746-1 Datasheet(PDF) 5 Page - TE Connectivity Ltd |
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1490746-1 Datasheet(HTML) 5 Page - TE Connectivity Ltd |
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5 / 6 page  408- 8703 5 of 6 Rev B 6. MAINTENANCE TE Connectivity recommends that a maintenance/inspection program be performed periodically to ensure dependable and uniform terminations. Frequency of inspection is dependent upon operator skill and care of dies, amount of use, presence of abnormal amounts of dust and dirt, type and size of products being crimped, and your company’s established standards. Figure 6 Broken Chipped Pitted 6.1. Die Maintenance and Certification All dies are thoroughly inspected prior to shipment. Because of the possibility of damage in transit, new dies should be inspected in accordance with the information provided in this section and be inspected at regularly scheduled intervals to ensure their conformance to standards. Dies are coated with a preservative to prevent rust and corrosion. Wipe preservative from dies, particularly from crimping areas, prior to use. Do not allow deposits of dirt, grease, or other contaminants to accumulate on the die closure surfaces. These deposits may cause excessive wear in the die closure surfaces, thereby affecting the quality of the crimp. Wipe dies frequently with a clean dry cloth and store them in a clean, dry area when not in use. 6.2. Visual Inspection Visually inspect die closure surfaces for broken, pitted, or chipped areas. Although dies may gage within permissible limits, worn or damaged die closure surfaces can affect crimp quality. Examples of possible damage to die closure surfaces are shown in Figure 6. 6.3. Die Closure Inspection Every die set is inspected for proper die closure before shipment. However, inspection of die closure for excessive wear is required on a periodic basis depending upon usage and conditions. The die closure inspection is accomplished using GO/NO--GO plug gages. A suggested plug gage design and the GO/NO--GO dimensions for plug gage members are provided in Figure 7. TE does not manufacture or market these gages. The following procedure is recommended for inspecting the die closure. 1. Clean oil or dirt from die closure surfaces and from plug gage members. Suggested Plug Gage Design Die Closure Configuration NO--GO Dim. GO Dim. “B” “A” Dim. 50.8 [2.000] 2 In. Min. “B” DIE NO DIE CLOSURE DIM. “A” GAGE MEMBER DIM. “B” NO. GO NO--GO GO NO--GO 1583092--1 3.734 [.1470] 3.988 [.1570] 3.734--3.741 [.1470--.1473] 3.985--3.988 [.1569--.1570] 1583093--1 4.496 [.1770] 4.75 [.187] 4.496--4.503 [.1770--.1773] 4.747--4.750 [.1869--.1870] 1583094--1 5.38 [.212] 5.639 [.2220] 5.380--5.392 [.2120--.2123] 5.636--5.639 [.2219--.2220] 1583095--1 6.655 [.2620] 6.909 [.2720] 6.655--6.662 [.2620--.2623] 6.906--6.909 [.2719--.2720] 1583096--1 7.544 [.2970] 7.798 [.3070] 7.544--7.551 [.2970--.2973] 7.795--7.798 [.3069--.3070] 1583097--1 8.509 [.3350] 8.763 [.3450] 8.509--8.517 [.3350--.3353] 8.760--8.763 [.3449--.3450] 1583098--1 9.576 [.3770] 9.83 [.387] 9.576--9.583 [.3770--.3773] 9.827--9.830 [.3869--.3870] Figure 7 |
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