SENSOR GP-TEMPERATURE 2477635 - Caterpillar

Use a wire brush or use a scraper to thoroughly clean the end of the ball stud. A clean surface ensures a good seal with the transducer.
Table 3
Critical Dimensions of Ball Studs
Sales Model Pt. No. of Ball Stud A B C D E F
784/ 785 8X-9619 273 mm (10.7 inch) 188.283 mm (7.4127 inch) 25.9 mm (1.02 inch) 53 mm (2.1 inch) 53.75 mm (2.116 inch) 82.55 mm (3.250 inch)
789 8X-9620 295 mm (11.6 inch) 210.283 mm (8.2788 inch) 25.9 mm (1.02 inch) 53 mm (2.1 inch) 53.75 mm (2.116 inch) 82.55 mm (3.250 inch)
793 8X-9620 295 mm (11.6 inch) 210.283 mm (8.2788 inch) 25.9 mm (1.02 inch) 53 mm (2.1 inch) 53.75 mm (2.116 inch) 82.55 mm (3.250 inch)
797 156-8136 295 mm (11.6 inch) 210.283 mm (8.2788 inch) 25.9 mm (1.02 inch) 53 mm (2.1 inch) 53.75 mm (2.116 inch) 82.55 mm (3.250 inch)
797B 192-5702 341 mm (13.4 inch) 225.006 mm (8.8585 inch) 25.9 mm (1.02 inch) 80.26 mm (3.160) 79.53 mm (3.13 inch) 109.73 mm (4.320 inch)
Illustration 11 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 12 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 8 grid mark and the 9 grid mark.
(G) Interruptions that are in this area will appear between the 6.5 grid mark and the 8 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