Announcing the 793D Off-Highway Truck Steering Accumulator Upgrade {4331}
- Off-Highway Truck:
- 793D (S/N: FDB1-UP)
A Special Instruction, REHS4430, "793D Off-Highway Truck Steering Accumulator Upgrade" is available. The procedures in Special Instruction, REHS4430 describe the conversion of a machine with multiple steering accumulators that contain bladders to multiple steering accumulators that contain pistons. Machines with the serial number FDB1-1216 were initially manufactured with multiple steering accumulators that were equipped with bladders.
Steering accumulators that are equipped with a piston is effective in production with (S/N: FDB1217-UP).
The upgrade for the accumulator that is described in Special Instruction, REHS4430, "793D Off-Highway Truck Steering Accumulator Upgrade" is for (S/N: FDB1-1216).
Caterpillar Information System:
AccuGrade For Wheel Tractor-Scrapers Option Key
2590 Track Feller Buncher Machine Systems Piston Pump (Main Hydraulic)
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2009/02/09 Improved Torque for the Idler Wheel Groups {4159}
2009/03/02 An Improved Grommet And An Improved Harness Are Now Used In The Cab {1429, 1430, 1432, 1434, 7329}
2009/01/05 An Improved Pressure Control Valve Is Now Used In the Transmission {3073, 3074}
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2008/12/22 The Implement Pump Pressure Sensor is Now Relocated {1439, 5070}
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2008/12/22 A New Protection Cover for the Dashboard is Now Used on PM-102 Cold Planers {7314}
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2008/12/29 A New Piston is Now Used in Certain Motor Graders {3077, 4267}
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2008/12/22 A New Coil is Now Used on the Propel Pump Solenoid on Utility Compactors {5070, 5479}