STRUCTURAL ANALYSIS AND DAMAGE REPAIR

For every task in Structural Analysis and Damage Repair, the following safety requirement must be strictly enforced:

Comply with personal and environmental safety practices associated with clothing; respiratory protection; eye protection; hand tools; power equipment; proper ventilation; and the handling, storage, and disposal of chemicals/materials in accordance with local, state, and federal safety and environmental regulations.

I. STRUCTURAL ANALYSIS AND DAMAGE REPAIR
A. Frame Inspection and Repair
1. Diagnose and measure structural damage using tram and self-centering gauges according to industry specifications. HP-I
2. Attach frame anchoring devices. HP-I
3. Straighten and align mash (collapse) damage. HP-G
4. Straighten and align sag damage. HP-G
5. Straighten and align sidesway damage. HP-G
6. Straighten and align twist damage. HP-G
7. Straighten and align diamond frame damage. HP-G
8. Remove and replace damaged frame horns, side rails, and cross members according to manufacturer's specifications/procedures. HP-G
9. Restore corrosion protection to repaired or replaced frame areas. HP-G
10. Repair or replace weakened or cracked frame members in accordance with vehicle manufacturer's specifications/procedures. HP-G
11. Identify misaligned or damaged steering, suspension, and powertrain components that can cause vibration, steering, and wheel alignment problems; align or replace in accordance with vehicle manufacturer's specifications/procedures. HP-G
12. Identify heat limitations in frame repair. HP-G
I. STRUCTURAL ANALYSIS AND DAMAGE REPAIR
B. Unibody Inspection, Measurement, and Repair

 

INSTRUCTOR NOTE: For all the following tasks, recognize that measuring, dimensioning, and tolerance limits in unibody vehicles are critical to repair of these vehicles; recognize that suspension/steering mounting points and engine power train attaching points are critical to vehicle safety, handling, and performance.
1. Identify misaligned or damaged steering, suspension, and powertrain components that can cause vibration, steering, and 4-wheel alignment problems; realign or replace in accordance with vehicle manufacturer's specifications/procedures. HP-G
2. Diagnose and analyze unibody vehicle dimensions using a tram gauge. HP-I
3. Determine and inspect the locations of all suspension, steering, and powertrain component attaching points on the body. HP-G
4. Diagnose and measure unibody vehicles using a dedicated (fixture) measuring system. HP-G
5. Diagnose and measure unibody vehicles using a universal measuring system (mechanical, electronic, laser). HP-G
6. Determine the extent of the direct and indirect damage and the direction of impact; plan the methods and sequence of repair. HP-I
7. Attach body anchoring devices; remove or reposition components as necessary. HP-I
8. Straighten and align cowl assembly. HP-G
9. Straighten and align roof rails/headers and roof panels. HP-G
10. Straighten and align hinge and lock pillars. HP-G
11. Straighten and align body openings, floor pans, and rocker panels. HP-G
12. Straighten and align quarter panels, wheelhouse assemblies, and rear body sections (including rails and suspension/powertrain mounting points). HP-G
13. Straighten and align front-end sections (aprons, strut towers, upper and lower rails, steering, and suspension/power train mounting points, etc.). HP-G
14. Use proper heat stress relief methods in high strength steel in accordance with manufacturer specifications/procedures. HP-G
15. Use proper cold stress relief methods. HP-G
16. Remove creases and dents using power tools and hand tools to restore damaged areas to proper contours and dimensions. HP-I
17. Determine the extent of damage to structural steel body panels; repair or replace. HP-I
18. Remove and replace damaged sections of structural steel body panels in accordance with manufacturer's specifications/ procedures. HP-G
19. Restore corrosion protection to repaired or replaced unibody structural areas. HP-G
I. STRUCTURAL ANALYSIS AND DAMAGE REPAIR
C. Fixed Glass
1. Remove and replace fixed glass (heated and non-heated) using manufacturer's specifications/procedures and recommended materials. HP-G
2. Remove and replace modular glass using manufacturer's specifications/procedures and recommended materials. HP-G
I. STRUCTURAL ANALYSIS AND DAMAGE REPAIR
D. Metal Welding and Cutting
1. Identify weldable and non-weldable materials used in collision repair. HP-I
2. Weld and cut high-strength steel and other metals using manufacturer's specifications/procedures. HP-I
3. Determine the correct welder type, electrode, wire type, diameter, and gas to be used in a specific welding situation. HP-I
4. Set up welding equipment. HP-I
5. Adjust the welder to "tune" for proper electrode stickout, voltage, polarity, flow rate, and wire-feed speed required for the material being welded. HP-I
6. Store, handle, and install high-pressure gas cylinders. HP-I
7. Determine work clamp (ground) location and attach. HP-I
8. Use the proper angle of the gun to the joint and direction of gun travel for the type of weld being made in the flat, horizontal, vertical, and overhead positions. HP-I
9. Protect adjacent panels, glass, vehicle interior, etc. from welding and cutting operations. HP-G
10. Protect computers and other electronic control modules during welding procedures according to manufacturer's specifications. HP-G
11. Clean and prepare the metal to be welded, assure good metal fit-up, apply weld- through primer if necessary, and clamp as required. HP-I
12. Determine the joint type (butt weld with backing, lap, etc.) for weld being made according to manufacturer's/industry specifications. HP-I
13. Determine the type of weld (continuous, butt weld with backing, plug, etc.) for each specific welding operation according to manufacturer's/industry specifications. HP-I
14. Perform the following welds: continuous, stitch, tack, plug, butt weld with backing, and lap joints. HP-I
15. Perform destructive tests on each weld type. HP-I
16. Identify the causes of spits and sputters, burn through, lack of penetration, porosity, incomplete fusion, excessive spatter, distortion, and waviness of bead; make necessary adjustments. HP-I
17. Identify cause of contact tip burn-back and failure of wire to feed; make necessary adjustments. HP-I
18. Identify cutting process for different materials and locations in accordance with manufacturer's procedures; perform cutting operation. HP-G

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