Issue link: https://onenorgren.uberflip.com/i/1316293
43 GC4 Gripper Field changing of tips: 39 36 223 35 39 22 19 20 226 23 24 1. Remove upper and lower lock nut #226. 2. Remove upper and lower metric hex bolt #223. 3. Change the tip #19 (single) or #20 (double). 4. Replace bolt and lock nut. Torque bolt to 360 in/lb (41 N• m). Field Changeable Tips and Tip Inserts These two features help make the GC4 Series of grippers adaptable to practically any sheet metal material handling application. Tips can be changed from single to double or vice versa. The tip inserts can be used by themselves, making them fully adjustable, or with spacers designed for specific part thicknesses. Page G-2 shows the tip insert and the tip spacer options available for the GC4 Series gripper. Follow the procedures below to change tips, tip inser ts, or tip spacers. TYP. MIN. TIP ADJUSTMENT: 0.00 MAX. TIP ADJUSTMENT: .20 [5.1] MAX. TIP ADJUSTMENT: .25 [6.3] MIN. TIP ADJUSTMENT: 0.00 When used without the optional tip spacers, tip inser ts are fully adjustable. Part thickness should not vary by more than .040 in. Beyond that, the inserts must be adjusted to accomodate the thickness of the part. Follow the procedure below to adjust the tip inserts. Adjusting Tip Inserts NOTE: With the gripper's jaws in their closed position, the inserts may be manually adjusted. Refer to Figures A and B. Figure A 1. With the tip inser ts backed off, adjust the concave insert where desired and lock into place. 2. Place the part between the two inserts and adjust the convex insert by hand until both the concave and convex inserts are in contact with the part. 3. Remove the part, then depending on the softness of the metal, advance the convex inserts one or two rotations and lock into place. Torque lock nuts to 190 in/lb [21N/m]. For double tip units, this last adjustment should be made with each convex insert a little at a time so the part remains level when the two inserts are locked into place. Figure B Field changing of tip inserts: 1. Remove lock nut from upper and lower inserts, then screw out the inserts #35, #36 or #39 from the tips #19 (single) or #20 (double). 2. Thread new inserts into tips. Torque lock nuts to 190 in/lb [21N/m]. Note: If spacers #22, #23, #24 are being used, make sure all spacers match in color. Refer to page G-2 for recommendations. 3. If used without spacers, follow the procedure below to properly adjust the inserts to the part thickness.