New Connector Protects Pilot Control Valve {5059}
Usage:
928G (6XR, 7SR) Wheel Loaders;
IT28G (8CR, 9AR) Integrated Toolcarriers
Description of Change: The hose connector on the inlet port of the pilot shutoff valve was replaced with a new connector. The new connector contains a filter screen that protects the pilot control valve from possible contamination.
Adaptable To: The 107-6631 Connector replaced the 6V-8636 Connector. See Table 1 for the manufacturing effectivity. This is adaptable to first production.
NOTE: The 107-6631 Connector should be inspected and cleaned when pilot control problems are detected. Contamination in the filter screen can reduce pilot pressure at the pilot control valve leading to erratic and slow implement response.
Caterpillar Information System:
1999/09/13 Hood Liner Support Brackets Modified To Eliminate Interference With Air Conditioner Compressor Switch {7251}
1999/09/13 Steering Cylinder Now Uses Improved Rod Seals {4303}
1999/09/13 Correction To Power Train Systems Operation Module, RENR3044 {0374,3168,4800}
1999/09/13 Correction To Transmission And Grapple Electronic Control System, Systems Operation Testing And Adjusting, SENR6686-01 {0374,3168,4800}
1999/09/13 Water Pump Elbow Modification {1361}
1999/09/06 Improved Transmission Flow Control Valve Prevents Unstable Oil Pressure {3064}
1999/09/06 New Plate Deflects Rain Water {1417}
1999/09/06 Modification Of Governor Control Groups Eliminates Governor Sticking {1264,1265}
1999/09/06 VIMS Version 9.6X Class Of On-board Software Available {7601}
1999/09/06 Use 164-5848 Driver To Install Seals {6108}
1999/09/06 A Special Instruction For Installing Bucket Control Linkage Assembly Modifications Is Available {6107,0374}
1999/09/06 New Piston In Lift Cylinder Increases Clearance Between Tilt Lever And Axle Housing {5102,6116}
1999/09/13 New Cleanout Filters Available For Hydraulic Systems And Drive Trains {5068}
1999/09/13 New 173-1530 Injector Seating Tool Group Available {0710,1290}
1999/09/13 Wider Crankshaft Gear Used {1204}
1999/09/20 Special Instruction, REHS0355, "Field Installation Of The 168-7958 Modification Arrangement" Is Available {5063,5705}
1999/09/20 Effectivity Of Product Support Literature For Caterpillar Monitoring System {0374,7490}
1999/09/20 New Parking Brake Actuator Adjustment Procedure Used {0374,4262,4267}
1999/09/20 Lift And Tilt Cylinder Now Uses Improved Rod Seals {5104,5102}
1999/09/20 VIMS-PC Version 2.4.3 MST Upgrade Now Available {7601,7620}
1999/09/20 VIMSpc99 Now Available {7601}
1999/09/27 Midshaft Bearing Now Used {3253,7551}
1999/09/27 New Hood Tilt Actuator Used {7275}
1999/09/27 Correction To Special Instruction 994D Wheel Loader Assembly Procedure, REHS0351 {0374,3139}