TRANSMISSION AR-COMPLETE 4952987 - Caterpillar

Illustration 8 g01432461
Front of Center Console (13) Grade and slope relayGrade and slope relay (13) is located near the main breaker panel.Machine ECM (7) monitors the propulsion mode switches. The machine ECM monitors the propulsion lever in order to control grade and slope relay (13). The machine ECM energizes the coil of the grade and slope relay after a preset delay when the following conditions have been met: propulsion mode switch is in the PAVE position, the speed dial is above the minimum setting and the propulsion lever is moved into the FORWARD range. The grade and slope relay controls the power supply to the tow point valves when running a machine with automatic grade and slope controls.The grade slope relay interrupts the signal to the tow point control valves from the grade or slope controls when the propel lever is moved to the NEUTRAL position. When the propel lever is moved to the FORWARD position, a timer is activated. When the timer reaches a predetermined count, the grade and slope relay is energized. The interrupted signal is then allowed to reach the tow point control valve.
Illustration 9 g01432462
Screed Platform (14) Connector "J1" (15) Screed ECM (16) Connector "J2" Screed ECM (15) is located below the operator walkway on the left side of the screed. This ECM has two 70 pin connectors. Connector "J1" (14) is the left connector. Connector "J2" (16) is the right connector.Screed ECM (15) works in conjunction with the operator control unit and the machine ECM in order to control the material auxiliary system. The screed ECM receives input signals from components on the screed. The machine electronic control system prompts the screed ECM to generate output signals in order to control the screed width.
Illustration 10 g01432464
Screed ECM Connector "J1"When the electrical disconnect switch is in the ON position, power transfers from the screed ECM circuit breaker to terminal "J1-31", and to terminal "J1-39" of screed ECM (16). This voltage input provides the power for the processor. When the main power relay is energized, power transfers from the screed circuit breaker to terminal "J1-1", and to terminal "J2-1" of the screed ECM. This voltage input provides the wake up signal to the screed ECM. The screed ECM is grounded at terminal "J1-13".Screed ECM (15) communicates with the other control units on the machine through the Cat Data Link. The Cat Data Link requires a positive line and a negative line. The positive line is connected to terminal "J1-10" of the screed ECM. The negative line is connected to terminal "J1-20" of the screed ECM.
Illustration 11 g01432466
Screed ECM Connector "J2" In order to control the auxiliary system, screed ECM (15) gathers input from the following components:
Left screed extension switch (terminal "J2-46" and terminal "J2-47")
Right screed extension switch (terminal "J2-54" and terminal "J2-55")Terminal "J2-4" of the screed ECM provides a common ground path for the screed extension solenoids.Screed ECM (15) determines that the left screed extension switch is in the RETRACT position when a ground signal is read at terminal