MIL-HDBK-660B
FIGURE 27. Tool for use with twisting machine.
5. DETAILED REQUIRMENTS (PRE-ASSEMBLY, ASSEMBLY, FINISHING OPERATIONS)
5.1 Removal of filling. If rosin is used for filling, dents and wrinkles should be removed while the filler is in the guide, but not otherwise. Use a flatting hammer with curvature corresponding to the shape being formed.
5.1.1 Alloy method. After bending and twisting, immerse the guide in a tank of hot water at 82°C to 93°C (180°F to
200°F), (corrosion-resisting steel tank preferred), and allow the alloy to run out. Do not use a torch. Tilt and shake the guide to remove the alloy as completely as possible. Plunge the emptied guide (while still hot) into cold water for
2 minutes to solidify any small drops of alloy retained in the oil film. To remove the oil film and remaining solid particles of alloy, flush the guide with a cold grease solvent (such as Oakite No. 23, or equivalent), then use a tight- fitting material and pull it through the guide.
5.1.2 Rosin method. Remove both plugs and tilt the guide, using a chain hoist if desired.
CAUTION: ALWAYS REMOVE BOTH PLUGS BEFORE MELTING OUT THE ROSIN
Using a torch adjusted for moderate heat, apply heat to the bottom end of the guide until the rosin begins to flow, then gradually raise the torch along the guide. After the guide is clear, direct the flame through the interior to remove remaining particles of rosin. It is not necessary to melt all the rosin. The tendency is for the surface of the rosin to melt, permitting chunks to slide out of the guide.
WARNING: NEVER APPLY HEAT TO THE MIDDLE OF A GUIDE THAT IS FILLED WITH ROSIN. AN EXPLOSION WILL RESULT.
25
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business