PROHIBITION OF HAMMERING AND WELDING Never weld aluminum die-casting parts, made of heat-treated materials, for crack repairs, etc. Otherwise, the strength of these parts reduced by the welding heat. Never hammer aluminum die-casting parts, if these parts are deformed. Replace them as an assembly.
CRACK INSPECTION
If the vehicle is damaged, visually inspect aluminum die-casting parts for deformation and carry out the crack inspection.
This inspection is carried out using dye penetrant testing agents (cleaning solution, penetrant liquid, and developer).
Crack Inspection Procedure

1. Spray the cleaning solution on the inspection surface to clean the surface.
2. Spray the penetrant liquid on the inspection surface and wait until the liquid has penetrates thoroughly.
3. Wipe out any excess penetrant liquid on the inspection surface and then wipe out again with a cloth moistened by a little cleaning solution.
4. Spray developer on the inspection surface.
5. A red indication appears on damaged area.

■ CAUTION ■
Follow the manufacturer directions for proper usage.
ELECTRIC CORROSION
Joining these parts and steel plated parts directly may cause electric corrosion. Coat the joint surface with epoxy primer to prevent electric corrosion.
■ CAUTION ■
Clean the joint surface thoroughly to eliminate iron powder first. Then apply the specified adhesive to bond the parts.
Never use bolts other than those that are specified, otherwise electric corrosion occurs. Always use the specified bolt with its surface appropriately finished.
Never reuse the removed specified bolt. Because the surface treatment may peel off, once the bolt is loosened.
SPECIFIED TIGHTENING TORQUE
Because aluminum parts are soft, it is necessary to tighten the parts to specified torques.
Always use a torque wrench when tightening a part to the specified torque.
■ WARNING ■
Never use an impact wrench to remove or install the bolts.