Rexroth PGH3-2X/011RE07VU2 Hydraulic Piston Pump

REXROTH hydraulic piston pump Preparations – Check whether the system is thoroughly and properly installed. – Fill the hydraulic fluid only in through filters with the required minimum retention rate. – Fill the pump completely with hydraulic fluid via the suction or pressure tube. – Check direction of rotation of the motor for compliance with the direction of rotation according to the pump type Bleeding – Open the bleeding port of the system by hand or change over to circulation at zero pressure in accordance with the operating instructions of the system. During bleeding, the pressureless transportation of entrapped air must be ensured. – To bleed the pump, briefly switch the motor on and then switch it immediately off again (inching mode). Repeat this process until the pump is completely bled. – Close the open bleeding ports by hand. Commissioning – When it is ensured that the pump is completely bled, switch the motor on. Let the pump run at zero pressure until the system is completely bled. For system bleeding, observe the operating instructions for the system. – Commission the system according to the operating instructions and load pumps. – After some time in operation, check the hydraulic fluid in the tank for bubbles or foaming on the surface.

Rexroth PGH3-2X/011RE07VU2 hydraulic piston pump

Operation – During operation, take note of changes in the noise emission. Due to warming up of the operating medium, a slight increase in the noise level is normal. A remarkable increase in the noise level or brief, stochastic changes in the noise characteristics can indicate the aspiration of air. In the case of too short suction pipes or low oil levels of the operating medium, air can also be sucked in through a vortex. – Changes in the operating velocities, temperatures, increase in noise or power requirement indicate wear or damage to the system or the pump. Re-commissioning – Inspect the pump and system for leakage. Loss of oil indicates leakage below the hydraulic fluid level. An increased hydraulic fluid level in the tank indicates leakage above the hydraulic fluid level. – When the pump is arranged above the hydraulic fluid level, the pump can drain via leaking points, e.g. a worn-out shaft seal ring. In this case, it must be bled again during re-commissioning. Have the damage repaired. – After repair and maintenance were carried out, re-bleeding is required. – Switch the motor on when the system is in flawless condition.

General – Pumps delivered by us are tested for function and performance. Never make any changes of whatever nature to the pump, otherwise the warranty will become void! – Repairs may only be carried out by the manufacturer or his authorised dealers and agencies. Repairs carried out by yourselves will not be covered by the warranty.