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HS-2 OPENING CYCLE DESCRIPTION (CW)
1) The switch is in the CCW closed position.
2) Cam 1 controls clockwise rotation is closed.
3) Cam 2 controls counter clockwise rotation.
4) Cam 3 controls the high speed close action is closed and will break at approximately 45 degrees.
5) Depress and hold local/remote push button and operate the toggle switch to open then release both switches. The circuit will seal in automatically.
6) The open relay and motor solenoid relay will make. The motor will start driving the pump.
7) The pressure gauge will immediately jump to approximately 825 psi, the nitrogen pre-charge level.
8) Oil will flow to the accumulator until approximately 1250 psi is indicated.
9) At approximately 1250 psi, the pressure switch will make and the start relay will make.
10) The open solenoid valve will open allowing oil to flow from the accumulator thru the open speed adjustment valve to the CW port of actuator.
11) Fluid will strike the valve of the actuator and it will rotate CW.
12) The speed of rotation can be increased or decreased by the opening speed adjustment valve. Screwing in the valve restrictors flow, screwing out will allow more fluid to flow.
13) Cam 2 will transfer after approximately 10 degrees rotation.
14) Cam 3 will transfer after approximately 45 degrees rotation -- NOTE: Cam 2 and 3 have no effect on this operation.
15) Actuator will rotate to the full open position.
16) At the full open position, Cam 1 will open and drop out entire circuit. Cam 2 will be made for next operation.
HS-2 CLOSING CYCLE DESCRIPTION (CCW)
1) The switch is in the CW open position.
2) Cam 2 controls clockwise rotation is closed.
3) Cam 1 controls counter-clockwise rotation is open.
4) Cam 3 controls the high speed close action is open and will make at approximately 45 degrees or one- half of total travel of switch, if so desired.
5) Depress and hold local/remote push button operate the toggle switch to close then release both switches. The circuit will seal in automatically.
6) The motor will start driving the pump. The close relay and motor solenoid relay will make.
7) The pressure gauge will immediately jump to approximately 825 psi, the nitrogen pre-charge level.
8) Oil will flow to the accumulator until approximately 1250 psi is indicated.
9) At approximately 1250 psi, the pressure switch will make and the start relay will make.
10) The close solenoid valve will open allowing oil to flow from the accumulator thru the slow-close adjustment valve to the CCW port of actuator.
11) Fluid will strike the vane of the actuator and it will rotate slowly CCW.
12) The speed of the rotation can be increased or decreased by the slow close adjustment valve. Screw in to restrict; out to allow more to flow.
13) Cam 1 will transfer after approximately 10 degrees.
14) At approximately 45 degrees rotation Cam 3 will make and pick up the close-fast solenoid valve.
15) A large amount of oil will now flow at the maximum adjustment rate the accumulator can deliver thru the close-fast valve. This high speed flow can be limited by the close-fast adjustment valve, screw in to restrict; out to allow more flow.
16) The actuator will continue to rotate to the full close position.
17) At the full closed position, Cam 2 will open and drop out entire circuit. Cam 1 will be made and ready for next open operation.
A note about hydraulic fluid:
The equipment is provided with MIL-5606 hydraulic fluid. The fluid is capable of maintaining specified viscosity over a wide temperature, -40 degree to +170 degree F. See MSDS for specific info. Use of any fluid other than specified will affect the operating characteristics.
When filling and maintaining the HS-2 operator, every effort should be made to insure only DIRT-FREE and WATER-FREE fluid is used. It is important to maintain safe and clean work habits. To do otherwise will jeopardize warranty.
©2001-08 Turner Electric : Last updated: Nov 05
