BonBini
New Member
ah I see... You see the electric motor turns the pump clockwise for (say) lifting, then counter clockwise for (say) lowering. The two electric solenoids on the pump group make this happen. Only one is activated at a time. There is an up sol and a down sol.
The fluid will circulate through the cylinders in either direction depending which way the pump in turning.
The fluid needs to be locked in the system when the pump is not in use (so the drive wont drift down). this is don by the two little load check valves.
So lifting the drive till the cylinders dead head and motor labors, means motor works and system can make pressure. Lowering till the cylinders bottom out and motor labors means all is good in both directions.
Tom was good lifting, motor labored indicating good pressure.
Tom was not good lowering, motor did not labor indicating no pressure. Tom even went as far to have one cylinder off and the system would not even retract the cylinder rod.
Hope that sums up my thought process.
The fluid will circulate through the cylinders in either direction depending which way the pump in turning.
The fluid needs to be locked in the system when the pump is not in use (so the drive wont drift down). this is don by the two little load check valves.
So lifting the drive till the cylinders dead head and motor labors, means motor works and system can make pressure. Lowering till the cylinders bottom out and motor labors means all is good in both directions.
Tom was good lifting, motor labored indicating good pressure.
Tom was not good lowering, motor did not labor indicating no pressure. Tom even went as far to have one cylinder off and the system would not even retract the cylinder rod.
Hope that sums up my thought process.
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