SEAL 3727819 - Caterpillar

Illustration 1 g02390596
Rotary Position Sensor
Illustration 2 g02390617
Y = % Duty cycle output [(H / P) X 100]H = High portion of output signal periodP = Period of output signal (Note the period is based on FALL-RISE-FALL)Improved 351-6942 Position Sensor Gp and 351-6944 Position Sensor Gp are used on the 300-6860 Transmission and Hoist Control Gp, 300-6859 Transmission Control Gp, 361-6590 Transmission Control Gp, 361-6594 Transmission and Hoist Control Gp, 361-6592 Transmission Control Gp and 361-6593 Transmission and Hoist Control Gp of certain Off Highway Trucks, Wheel Tractor Scrapers, and Articulated Trucks. The rotary position sensors with improved electrical connector configuration produce PWM signal with good output characteristics and high accuracy. The resolution and performance of the rotary position sensors are improved by these characteristics. Refer to Illustrations 1 and 2.Refer to the above reference for the correct replacement procedure for rotary position sensors in the transmission and hoist control group.The improved rotary position sensors are adaptable to the following machines:
621G (S/N: DBB1-701)
623G (S/N: ARW1-424)
623G (S/N: CES1-576)
623G (S/N: DBC1-525)
627G (S/N: AXF1-729)
627G (S/N: CEX1-602)
627G (S/N: DBD1-932)
631G (S/N: AWK1-315)
631G (S/N: CLR1-592)
657G (S/N: W1C1-286)
725 (S/N: AFX1-UP)
725 (S/N: B1L1-2376)
730 (S/N: AGF1-UP)
730 (S/N: B1M1-2834)
730EJ (S/N: B1W1-368)
735 (S/N: AWR1-UP)
735 (S/N: B1N1-UP)
740 (S/N: AXM1-UP)
740 (S/N: B1P1-5670)
740EJ (S/N: AZZ1-UP)
740EJ (S/N: B1R1-527)
770 (S/N: BZZ1-608)
772 (S/N: RLB1-624)
773F (S/N: EED1-1169)
775F (S/N: DLS1-1163)
777F (S/N: JRP1-2397)The improved rotary position sensors are effective in production in the following machines:
621G (S/N: DBB702-UP)
623G (S/N: ARW425-UP)
623G (S/N: CES577-UP)
623G (S/N: DBC526-UP)
627G (S/N: AXF730-UP)
627G (S/N: CEX603-UP)
627G (S/N: DBD933-UP)
631G (S/N: AWK316-UP)
631G (S/N: CLR593-UP)
657G (S/N: W1C287-UP)
725 (S/N: B1L2377-UP)
730 (S/N: B1M2835-UP)
730EJ (S/N: B1W369-UP)
740 (S/N: B1P5671-UP)
740EJ (S/N: B1R528-UP)
770 (S/N: BZZ609-UP)
772 (S/N: RLB625-UP)
773F (S/N: EED1170-UP)
775F (S/N: DLS1164-UP)
777F (S/N: JRP2398-UP)