031-371

Amphenol® Assembly Instructions-C26b BNC ORIGINAL CRIMP PLUGS BOOT boot ferrule G O ferrule clamp nut assembly SS plug body assembly Hex Crimp Data Amphenol Number Connector Type 31-351 BNC Plug 58, 141 31-359 BNC Plug 59, 62, 140 31-371 BNC Plug 174, 179, 187, 188, 316 Step 1 FERRULE/ CLAMP NUT ASSY OUTER FERRULE Cable RG-/U Cavity for Contact Stripping Dimensions, inches (mm) Cavity for Outer Ferrule Die Set for Tool 227-944* a b c — .213(5.4) 227-1221-11 .922(23.4) .516(13.1) .250(6.3) — .255(6.5) 227-1221-13 .922(23.4) .516(13.1) .250(6.3) — .128(3.2) 227-1221-3 .797(20.2) .516(13.1) .250(6.3) boot Step 1 Install boot and slide outer ferrule onto cable as shown prior to stripping cable. outer ferrule STEP 1 a Step 2 b STEP 2 c Step 2 Strip cable jacket, braid and dielectric to dimensions shown. See attached table for dimensions. All cuts are to be sharp and square. Important: DO NOT nick braid, dielectric, and center conductor when cutting. Tin center conductor using soft solder per QQ-S-571 comp Sn 60. Avoid excessive heat while tinning to prevent swelling of cable dielectric. Step 3 Step 3 Slightly flare out end of cable braid as so as to facilitate insertion onto ferrule clamp nut assembly. Important: DO NOT comb out braid. P3 Step 4 STEP 4 Step 5 outer ferrule must clamp nut assy as shown cable dielectric must butt insulator as shown note: center conductor must be visible thru contact solder hole prior to soldering Step 4 Install ferrule clamp nut assembly onto cable so that ferrule portion slides under braid and insulator butts flush against cable dielectric. Slide outer ferrule over braid and up against nut. Make sure no slack exists in braid. Crimp outer ferrule with tool specified in table above, keeping cable dielectric bottomed against insulator. STEP 5 Step 5 Soft solder center conductor to contact using rosin core per QQ-S-571 comp Sn 60. DO NOT get any solder on outside surfaces of contact. Step 6 STEP 6 Step 7 lip of boot must be firmly positioned in body groove Step 6 Screw connector body onto prepared cable termination . Wrench tighten by holding the cable nut assembly STATIONARY while ROTATING the connector body. STEP 7 Step 7 Push body forward and into position as shown to complete assembly. * for pneumatic crimp tool 227-60, use die sets indicated in this column Amphenol Corporation Tel: 800-627-7100 www.amphenolrf.com 302