38 SOLDERING STEPS 5.8 ALL RIGHTS RESERVED © LAB MOD SYSTEM FRAME PARTS LAB CONSUMABLES TOOLS PLIERS EQUIPMENTS LENSES REFRACTION & ORTHOPTIC INDEX PREPARATION • Always wear safety glasses. • First, remove any parts that will be affected by heat, e.g. pads, rim cover, temple tips. • Before heating, it may be necessary to apply a large amount of protective heat shield paste ISOFLAM (Ref. 06221) over those parts that are close to the area being heated. • Next, remove broken part by heating the area until it becomes detached. Use tweezers Ref. 03730 to help. POLISHING • Always prepare the surfaces to be soldered first by using the rubber abrasion wheels (Ref. 02444 - Ref. 02447). A clean, smooth surface ensures a good result. • Alternatively use a file. PROTECTION OF THE PARTS CLOSE TO THE SOLDERING POINT • Apply ISOFLAM protection paste (Ref. 06221) around the soldering point and on any components (nose pads, enamelled parts, etc.). • After soldering, the paste can be recovered and reused by adding a few drops of distilled water. POSITIONING OF THE FRAME • Place the frame on the soldering table (Ref. 06195) to give easy access to the part being soldered. The clamps should be kept away from the soldering area to avoid overheating. • Rest your elbows to support the hands. • The parts to be soldered should not be close to the table top. PLANNING THE SOLDER • If you are not using SOLDER rods (Ref. 06210-6214), prepare the solder wire (Ref. 06200-06202) in advance by wetting it and dipping it in borax flux powder (Ref. 06208). • Always heat first the thicker surface as it reaches the melting point in longer time by absorbing more heat. • Dip the soldered part in water. • Use protective goggles during all soldering steps.
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