SFWR GP-A1000 4784661 - Caterpillar

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Left Side of the Scraper Transmission (2) Scraper transmission switch
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EMS Panel for the Scraper (3) Transmission synchronization light
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Left Side of the Dash in the Operator Compartment (4) Scraper transmission neutral/run switch
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Top of the Scraper Transmission (5) Synchronization solenoid (6) Downshift solenoid (7) Upshift solenoid
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Scraper Transmission Hydraulic Controls (5) Synchronization solenoid (6) Downshift solenoid (7) Upshift solenoid (8) Transmission pressure control valve (9) Transmission selector valve (10) Rotary actuator (12) Rotary selector spool
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Rear of Scraper Transmission (11) Transmission speed sensor
Table 1
Components of the Transmission Electronic Control    
(1) Transmission control     The transmission control will control the transmission shifting.    
(2) Transmission switch     Transmission switch (2) will tell transmission control (1) the transmission speed.    
(3) Transmission synchronization light     The transmission synchronization light will inform the operator that the scraper transmission is not synchronized with the transmission of the wheel tractor.    
(4) Scraper transmission neutral/run switch     When you move the switch into the UP position, the scraper transmission will be placed in the NEUTRAL position.    
(5) Synchronization solenoid     Before the scraper transmission is engaged, the synchronization solenoid will ensure that the scraper transmission is in the same speed position as the transmission of the wheel tractor.    
(6) Downshift solenoid
(7) Upshift solenoid     The solenoids control the movement of the rotary actuator.    
(8) Transmission pressure control valve     The valve controls the maximum pressure, the oil flow, the amount of pressure increase and the time of pressure decrease in the clutches.    
(9) Transmission selector valve     The valve controls the pressure in the hydraulic system. The selector valve will signal to the transmission control valve to engage the proper clutches. the valve needs to engage. Also, the valve controls the torque converter inlet pressure.    
(10) Rotary actuator     The rotary actuator will control the movement of the rotary selector spool in the transmission selector valve.    
(11) Transmission speed sensor     The speed sensor will sense the rpm of the output shaft of the transmission. The sensor will then deliver the information to the transmission control.    There are two different systems that control the operation of the scraper transmission. An electrical system activates a hydraulic system. The transmission control system for the scraper is not activated until the transmission control system for the tractor has completed a shift. When the transmission control system for the tractor has completed a shift, the scraper transmission control system will follow with the same shift. This shifting will synchronize