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| Illustration 1 | g01174134 |
(1) Accumulator | |
Accumulator (1) stores oil under pressure for use in the pilot system. The accumulator helps to eliminate erratic movement of the hydraulic controls during combined operations. Also, the accumulator allows the implements to be lowered when the engine is not running.
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| Illustration 2 | g01279744 |
Pilot manifold and accumulator (1) Gas chamber (2) Vessel (3) Bladder (4) Pressure oil chamber (5) Accumulator (6) Inlet port (7) Adapter As (8) Line (pilot oil flow from pilot oil manifold to the mounting block for the accumulator) (9) ACC Accumulator Port (10) Passage (11) Check valve (12) Passage (A) Port for two-speed travel (B) Port for the swing brake (ACC) Accumulator Port (P) Inlet port (pilot oil manifold) (T) Tank port | |
Pilot oil from the pilot pump enters inlet port (P) of the pilot oil manifold. Pilot oil flows through passage (12) and opens check valve (11) . Pilot oil now flows through passages (A) and (B) to the pilot control valves (joysticks and travel levers/pedals).
The pilot oil also flows through passage (10) and line (8) to adapter (7) for accumulator (5) . The pilot oil now flows through inlet port (6) into pressure oil chamber (4) . The pilot oil acts against bladder (2) and the nitrogen gas in gas chamber (1) is compressed. Check valve (11) prevents a backflow of the stored oil in the accumulator.