YRS-125

Preface 1. The YRS series hand tool crimps smaller sized chain (with open barrel) terminals, and was designed to be used for small preproduction lots, samples and repairs. An upper die has two crimping positions. Set it depending on the applicable wire size for each position. This tool can crimp side-feeding terminals only. 2 As the crimp height of the tool is not adjustable, the applicable wires are limited. So some tools come with two different upper dies. IPrecautions I (1) Make sure the correct combination of wire, terminal, and tool is used. (2) Because the tool has a ratchet, the handles will not open until the terminal is completely crimped. Do not forcibly open the handles while crimping. If you need to open the handles because, for example, a J'~ terminal is positioned incorrectly, or a foreign body is stuck in the crimp tool, remove the adjustment pin and upper die, and squeeze handles until the ratchet is released. (3) Check the following items before use; . a. Make sure there are no scratches, rust, or dust on the crimping dies. b. When crimping a terminal to a wire, does the ratchet operate normally after the crimping dies are completely closed? c. Are both the tensile strength and appearance adequate? (4) Do not use the crimp tool for purposes other than crimping. (5) Periodically add oil to the moving parts and the pins of the crimping tool. If you don't plan on using the tool for a long time, apply oil to the entire body of the tool, and put it in a rust preventive bag, or wrap it with a oiled cloth before storing. (6) Consult with JST if the tool breaks or needs to be repaired. ·.11. Names of each part Upper die ...... \ __ -­ __ /.Feeder j . \, .\ Handle y ••••••• I @ f / Ratchet (.NI".lohl .......... ...,..··· ....... , . I 2. Crimping Operation (1) Squeeze the handles until the dies are completely closed. The ratchet will then releases .and the handles will open. (2) Check the marking on the upper die. The applicable wire size is shown there. Select the correct position depending on the wire you will use. Then correctly set the upper die, as shown in Fig. 1. Applicable wire size Position the upper die so that the tail of the guide screw is inserted in the guide groove of the upper die (on the insulation barrel side). The die cannot be set when oppositely mounted. Insert the strip carrier of the chain terminals in between the G)terminal guide guide plate. Insulation barrels should be positioned in the groove of the and @ guide plate. Feed the chain terminals until the insulation barrel of the first terminal comes to the center of the crimping position, while holding the strip carrier by fingers, lighly pressing it forward notch by notch. Refer to Fig. 2 and ® Guide plate Terminal groove CD (2) Guide plate (2) Terminal Cutter """"--~~ Strip carrier Fig.3 Fig.2 Insulation barrel crimping Wire barrel crimping die die Stripper Grip the handles so the terminal is just held in the dies. Do not put too much pressure on the terminal at this point. If you deform it, you may not be able to insert the wire. Position a stripped wire so that the insulation edge is lighly pressed against the stripper. See Fig. 4 in the left. D-Ll [1-yr--(---~_ FigA Adequate amount of bell-mouth conductorgl"'" as Shown.\~ot~ O.5mm 1 . Remove the terminal and make a visual inspection. See Fig. 5. 1t__ ~':::arrel completely grips Ihe wire insulalion. ~hall be 110 (1) Squeeze the handles to crimp the terminal while holding the wire to keep it in the correct position until the ratchet releases. (2) HllH