169 Installation Steps Socket Fusion PRISMA125 3) Protrude pipe until the pipe end surface becomes the straight line with the fitting socket end and then fix. (Common for all sizes) 4) Clean the pipe cut surface and the internal face of fitting socket with a special paper towel fully impregnated with acetone. Notes: Clean with bare hands and check that grease, etc. is removed from the fused face. Do not touch the fused face after cleaning. �@ Preparation of Fusion Machine 1) Set fusion machine on a flat place. 2) Fix heater face and turn on the power. Notes:・ No biting of foreign objects. ・ Tighten firmly without looseness. 3) Match selector to fusion size. 4) Match clamp to fusion size. Notes: 50 mm or less: Small-end side, 65 mm or over: Large-end side �A Pipe Cutting and Cleaning 1) Cut pipe at a necessary length with a pipe cutter. 2) Check for no scratches and dirt on pipe and clean, if any. Notes: It shall be cut at right-angle. Cut and remove any harmful scratches. �B Cutting of Fused Face 1) Enter a gauge line for insertion depth. 2) Cut the surface from pipe end to gauge line with a scraper. Notes: No need for sizes of 50 mm or less. 3) Chamfer the pipe end. Notes:・ After cutting, check for no scratches on the fused surface. ・ If some uncut areas remain, cut again. ・ Use special tools for surface cutting and chamfering. �C Fixing and Cleaning of Pipe & Fittings 1) Fix fitting at a position where the fitting end surface touches the clamp flange. Notes: For 65 mm or over, use nonslip spike of auxiliary clamp. 2) Forward clamp until it touches the button while pressing the position button. �D Heater Check 1) Check that the temperature is 260±10｢ｪC using a surface thermometer. Notes:・ Measure at several locations and check for no fluctuation. ・ If the temperature is out of the specified range, adjust with the temperature selector. 2) Clean the heater face surface. Check no dirt and then set at a specified location. �E Heat Fusion 1) Forward clamp, insert pipe & fittings into heater face (to the stopper of fusion machine), and heat/fuse for the specified time. Notes: Insert at a certain speed. �F Heater Removal, Crimping, Cooling 1) After completing heat fusion, retract clamp immediately and remove heater. 2) After removing heater, move clamp forward to the stroke end. Notes: Time from completion to completion of crimping shall be done within the specified conversion time. 3) After completion of crimping, cool it for the specified time while clamped. 4) Remove from clamp and cool it for the specified time. Notes: Do not apply any load on the fused part until completely cooled. �G Inspection 1) Check that bead is consistently applied along the entire circumference. 2) Check for no scratches, abnormalities, etc. on the connected part. Notes: If any defects are seen, cut the connected part and redo from the beginning. Notes: Refer to P.172 for the fusion conditions. Applicable Range 20 . 100 mm (d25 . d110)