CONVERSION AR-ROADING 1091023 - Caterpillar

System Configuration
Table 1
Sub-Group     Engine     Value Display     Product Link     Machine Models     Serial No. Prefix    
Pilot control.     C4.4 T2, T3 (Mechanical)     Base CP / Base SS     PL641/PL631     420F2 ST
420F2
420F2 IT
430F2 ST
430F2
432F2
444F2     LYB
LBS
LYC
LYD
LYE
LYJ
LYL    
Mechanical control.     Base CP / Base SS 428F2
434F2     LYG
LYK Machine ECM Inputs/Outputs Pilot
The Machine Electronic Control System provides electronic control of the hydraulic, machine, and transmission systems. The systems include the following components:
Various Inputs (switches and sensors)
An electronic control module
Various outputs (solenoid valves)The Machine ECM also controls the following specific functions (see the graphic below):
Illustration 1 g03723600
(1) All Wheel Steering ECU (2) Product Link (If Equipped) (3) CAT ET Service Tool (4) Security System Antitheft Keypad (5) CAN A (J1939) Datalink (6) Hydraulic Oil Temperature Sensor (7) Hoe 1 Joystick Aux Thumb Roller (8) Hoe 2 Joystick Aux Thumb Roller (9) Loader Aux Thumb Roller (10) Service Brake Pedal Left (11) Service Brake Pedal Right (12) Transmission Shift Lever (13) Loader Auxiliary Continuous Flow Switch (14) All Wheel Drive (AWD) Switch (15) Ride Control Auto/On Switch (16) Hoe Auxiliary Continuous Flow Switch (17) Alternator R-Terminal Engine Speed (18) Key Switch and Battery (19) Parking Brake Switch (20) Transmission Neutralize/Downshift Switch (21) Stabilizer Lever Neutral Position (22) Main Hydraulic Pump Oil Pressure Sensor (23) 47 Tooth Transmission Output Speed Sensor (PG115) (24) 37 Tooth Transmission Output Speed Sensor (C115) (25) Transmission Auto/Manual Switch (26) Hydraulic Oil Filter Bypass Switch (27) Quick Coupler Parity Signal (28) Quick Coupler Engage/Disengage (29) Transmission Lockout Switch (30) Implement Lock Out Switch (31) Fuel Economy Mode Switch (32) Ride Control Pressure Sensor (33) Transmission Direction Switch (FNR) (34) Differential Lock Switch (35) Stabilizer Proximity Switch (SS Machines Only) (36) Stabilizer Lever Position (CP Machines Only) (37) Ride Control/Load Check Relay (38) All Wheel Drive Solenoid (39) Implement Pilot Supply Solenoid (40) Differential Lock Solenoid (41) Engine Starter Relay (42) Transmission Speed Clutch 1 (43) Transmission Speed Clutch 2 (44) Transmission Speed Clutch 3 (45) Transmission Reverse Clutch (46) Transmission Forward Clutch (47) Transmission Forward High Clutch (48) Back-Up Alarm (49) Hoe Auxiliary Valve #1 Port A Solenoid (50) Hoe Auxiliary Valve #1 Port B Solenoid (51) Hoe Auxiliary Valve #2 Port A Solenoid (52) Hoe Auxiliary Valve #2 Port B Solenoid (53) Loader Auxiliary Valve Port A Solenoid (54) Loader Auxiliary Valve Port B Solenoid (55) Main Hydraulic Pump Solenoid (56) Lock Up Clutch Solenoid (If Equipped) (57) Fuel Economy Mode LampThe electronic models of the backhoe loader shall have two physical configurations of the transmission:
Standard Shift - electronic control over the mechanically modulated forward and reverse clutches (mechanical gear selection).
Six (6) Speed Autoshift - electronic control over the forward high, forward low, reverse and three speed clutch solenoids, & transmission output speed sensor (needed for shift points).The standard shift configuration uses a column mounted "FNR" shuttle handle. The "Autoshift" configuration uses a column mounted twist grip shift lever. The transmission system reads several inputs to control transmission gear, direction, and