2009/12/16 Caterpillar


Announcing the 793D Off-Highway Truck Steering Accumulator Upgrade {4331}

Usage:

793D FDB
Off-Highway Truck:
793D (S/N: FDB1-UP)
Service Magazine SEPD1000, 13 July 2009, "Announcing the 793D Off-Highway Truck Steering Accumulator Upgrade". Disregard this article. See the article that follows.

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).

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