BOLT 2915203 - Caterpillar

Illustration 9 g00843601
(1) Gel compound
(2) Display screen
(3) Krautkramer Branson USN 52
(4) Transducer
Apply standard gel compound to the transducer and to the end of the ball stud. This will ensure proper contact with the transducer.
Set the gate at 20 percent of the screen height.
Use a 2.25 MHz - 5Mhz straight beam transducer. The diameter of the transducer should measure 12.7 mm (0.5 inch) to 25.4 mm (1.0 inch). The area of concern is dimension (B) for this type of defect.
Apply the transducer to the threaded end of the ball stud.
Use the range key to move the reflected signal to "9" on the display screen. Keep the signal at "9" on the Display screen. Adjust the reflected signal for each ball stud to 100 percent of the screen height. This will ensure that the surface is the opposite end of the ball stud and that the surface is not the bottom of the drilled holes.Note: Drilled holes will reflect the signal.
Set the gate to 20 percent of the screen height.
Illustration 10 g00843670
(B) Interruptions that are in this area will appear between the 0 grid mark and the 6.4 grid mark.
(C) Interruptions that are in this area will appear between the eight grid mark and the nine grid mark.
(G) Interruptions that are in this area will appear between the 6.5 grid mark and the eight grid mark.
(H) Cracks that are in this area CAN NOT be detected.
Slowly move the transducer over all surfaces of the end of the ball stud.Note: An indication from approximately 0 to 6.4 grid marks on the display screen indicates a damaged ball stud. A complete loss of the reflected signal may also indicate a damaged ball stud.Note: The area of concern (B) should occur approximately between 0 grid marks and 6.4 grid marks on the display screen. Reflected signals from the drilled holes should occur approximately between eight grid marks and nine grid marks on the display screen.Note: Although the ultrasonic beam spreads slightly, cracks that are in Area (H) CAN NOT be detected.
Identify the ball stud as an acceptable ball stud or as a damaged ball stud.
Document the following information.
Date of inspection
Serial number of the inspected truck
Part number of the inspected ball studs
Number of inspected ball studs
Number of ball studs that were damaged per truck
Initial of operator that performed the inspection
Any corrective action that was takenDisassembly Procedure
Start By:
Remove the steering link.
Illustration 11 g00409462
Illustration 12 g00409463Note: Dimension (A) equals 6.4 1.5 mm (0.25 0.06 inch).
Remove nut (10), the washer, and bolt (11).
Remove clamp (9) from rod assembly (8).
Unscrew socket assembly (1).
Remove plug (7) and retaining ring (6).
Use a suitable press to remove bearing (5). Remove cover (4) from stud (3).
Repeat Steps 1 through 5 for the remaining socket assemblies.Assembly Procedure
Illustration 13 g00409463
Illustration 14 g00409462Note: Before the installation of bearing (5), lower the temperature of the bearing to −45°C (−49.0°F).
Install cover (4) on stud (3). Use a suitable press to install bearing (5).
Install plug (7). Insert retaining ring (6) into the tie rod by hand. Use a brass drift to position