Rexroth hydraulic pump - how to use the piston pump

Create Date: 2024-8-30 12:03:23|Source: Rexroth/Rexroth

1. Preparation before starting: check the fastening of each component; Check the oil level of the oil tank, the height of the oil level is subject to the engraving line of the oil window on the oil tank, N46 in summer, N32 hydraulic oil in winter. High-pressure pumps and pumps above 140 should use the same type of anti-wear hydraulic oil. Check the range of the pressure gauge, the pressure gauge of the hydraulic station is 0-16MPa, and the pressure gauge range on the air tank should be 0-6MPa, and it cannot be reversed.

2. Start: boil cooling water; Close, turn on the switch, jog the start button, check the steering of the motor, should be clockwise, must not be reversed. After checking that everything is correct, start the motor and oil pump.

3. Operation adjustment: (1) Adjust the relief valve to adjust the oil pressure, that is, to adjust the mud pressure, the adjusted relief valve should be on the back of the lock nut, each time the machine is opened and stopped, the relief valve is not moved, and the oil pressure shall not be higher than 12MPa. Description: The fixed pump should be started at low load, if the two pumps are used alternately, they can be stopped first and then started, without adjusting the relief valve; (2) Adjust the position of the two strikers on the carriage and adjust the plunger stroke; (3) When the plunger and the sealing ring are worn and leakage, the pressure ring should be adjusted appropriately to not leak the slurry, and when the pressure ring is pressed to the contact with the packing box and still leaks, the gasket can be added at the upper end of the sealing ring. In order to ensure that the sealing ring is concentric with the plunger, the upper end face of the pressurized water ring strives to be parallel to the upper end face of the packing box, and the unevenness shall not be greater than 0.5mm;(4) The adjustment of the variable pump and the filter press is the same as the operation adjustment (1).

When the pump is at the factory, the feeding pressure is set to 2.0MPa, if the required feeding pressure is lower than 2.0MPa, adjust the overflow counterclockwise to make the feeding pressure reach the required value when the plunger runs at its slowest speed.

Fourth, shutdown:

(1) Press the stop button, and the pump will stop.

(2) Stop cooling water.

(3) Flush the valve box with water.
Rexroth hydraulic pump - how to use the piston pump

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