CONTROL GP-HANDLE 2773279 - Caterpillar

Note: Personal breathing protection should be worn by the personnel who are welding. Personal breathing protection will prevent fumes from entering the lungs of the person that is welding. Use a 237-5181 Respirator for breathing protection.Qualifications
Welders must be qualified for the appropriate type of weld that is being performed. Welders must be qualified for the appropriate position of weld that is being performed. Welders must be qualified for the welding process that is being utilized: Shielded Metal Arc Welding (SMAW), Flux Cored Arc Welding (FCAW) and Gas Metal Arc Welding (GMAW). Refer to AWS D1.1 Structural welding code-steel or equivalent nationally or Internationally recognized code or standard for guidance on welder qualification testing requirements. The welders must have used the process at some time within the last six months. The welders must complete the process of certification if the welders have not used the welding processes for six months.Proper Welding Procedure on Machines and Engines with Electronic Controls
Proper precautions are necessary to prevent damage to electronic controls. When you weld on a machine with electronic controls, use the steps that follow:
Turn off the engine. Put the key start switch in the OFF position.
If the machine has a battery disconnect switch, open the switch. If the machine does not have a battery disconnect switch, disconnect the negative battery cable at the battery.
Connect the ground cable for the welder directly to the actual machine component that will be welded. Attach the clamp for the ground cable as close as possible to the area that is being welded. This procedure will reduce the chance of damage from welding current to the components that follow: bearings, hydraulic components, and electrical components.Note: Do NOT use electrical components as a ground point for the welder. Do NOT use ground points for electronic components as a ground point for the welder.
Protect the wiring harnesses from the welding spatter.Area Preparation
The area to be welded shall be clean, dry, and free of the following contaminants:
Oil
Grease
Paint
Dirt
Rust
Any fluids or moistureAttach the welding ground cable directly to the base metal. Protect machined surfaces from sparks. Protect the machined surfaces from the welding spatter.Required Tools
Table 1
Quantity Description
1 Arc Welder
1 178 mm (7 inch) Pneumatic Grinder
Assorted Sanding Pads
1 237-5181 RESPIRATOR
Personal protective equipment Prepare for Rework
Park the machine on a flat hard surface.
Lower the bowl to the ground and support the bowl and lower the apron to the bowl floor.
Place the machine transmission in Park position.
Shut off the engine and place chocks in front of and behind the wheels.
Place the battery disconnect switch in the OFF position.
Protect any hoses, harnesses, and cylinders that are in the area of the rework from weld slag.Required Parts (Dealer Fabricated)
Fabricate component parts using ASTM A572 Grade 50 structural steel.
Table 2
Item Qty Part Name
1 2 Boss
2 2 Plate
Illustration 2 g06013248
(1) Boss
(A) 115 2 mm (4.5 0.08 inch)
(B) 19 mm (0.75 inch)
Illustration 3 g06013266
(2) Plate
(C) 17.3 mm (0.68 inch)
(D) 164.8 mm (6.49 inch)
(E) 382 mm (15.03 inch)
(F) 365.5 mm (14.39 inch)
(G) 10 mm (0.39 inch)
(H) 8