D8R Series II Track-Type Tractor Hydraulic System Caterpillar


Accumulator

Usage:

D8R II 6YZ



Illustration 1g00773633

Location of accumulator

The pilot accumulator is located behind an access panel on the right side of the operator station. The accumulator is attached to the top of the manifold and reducing valve.




Illustration 2g00557090

Accumulator

The accumulator stores potential energy by accumulating a quantity of pressurized hydraulic fluid. The pressurized fluid is stored in a bladder type accumulator. A bladder that contains gas is located within the accumulator. The accumulator is charged to 1030 kPa (150 psi) with dry nitrogen.

The pressurized hydraulic fluid enters the accumulator and the fluid creates pressure within the accumulator. Energy is stored as the bag that is within the accumulator is compressed by the hydraulic fluid. The pressurized hydraulic fluid that is stored in the accumulator permits the operator to lower the implements for a maximum of 1.5 minutes after the engine is turned off.

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