As the core actuator of a hydraulic transmission system, the stable performance of a hydraulic motor orbital depends not only on the quality of the product itself but also closely on proper installation and commissioning. Correct installation and commissioning can significantly extend the motor's service life and ensure the efficient operation of the equipment. Hanjiu Technology, with deep expertise in the field of fluid power, has, based on years of technical experience and user feedback, systematically explained the key points for installing and commissioning hydraulic motor orbital, providing professional guidance for users.
Preparations before installation are the foundation for ensuring subsequent processes proceed smoothly. Before installing the motor, the motor's appearance and all interfaces should be checked for any transportation damage, and the model and specifications should be verified to meet equipment requirements. At the same time, the installation surface should be cleaned to ensure that the installation base or frame has sufficient rigidity and a flat, clean surface. The perpendicularity of the installation surface to the motor axis should be controlled within 0.03 millimeters to ensure even force distribution. HANJIU Technology recommends that users carefully read the technical documentation provided with the product before installation to fully understand the specific requirements of the purchased model.
Key operations during the installation process directly affect the motor's operating condition. The motor output shaft must be strictly coaxial with the centerline of the connected coupling to avoid additional radial loads caused by eccentricity. When the inlet and return oil lines are connected with steel pipes, all pipeline stress should be completely relieved to prevent the pipes from exerting force on the motor housing. When connecting the external leakage oil line, it is important to ensure that the return oil resistance is controlled below 0.3 MPa, and that the external leakage line is connected individually to the oil tank, rather than in series with other return lines, to avoid excessive back pressure affecting motor performance. When tightening fasteners during installation, a torque wrench should be used to tighten them evenly to the specified torque, avoiding deformation of the housing or seal failure due to over-tightening on one side.
Pre-start oil filling and inspection are indispensable steps. Before starting the motor after installation, the motor housing must be filled with clean hydraulic oil through both oil ports, and the output shaft should be rotated to check for smooth operation and any abnormal sticking. This process effectively prevents dry friction damage caused by oil shortage at the moment of startup. During the commissioning phase, operation should proceed gradually. On the first startup, jog the motor to confirm that the rotation direction meets requirements. Before the motor is put into full-load operation, it should undergo a sufficient break-in period, recommended at below 30% of maximum working pressure for more than one hour, allowing the moving parts to fully adapt. During the break-in process, listen for any abnormal motor sounds and check for unusual vibrations or leaks.
The selection and maintenance of hydraulic oil are key to ensuring long-term stable operation. It is recommended to use anti-wear hydraulic oil with a working viscosity of no less than 13 cSt. The oil cleanliness should meet ISO 18/13 standards, and the maximum operating oil temperature should be controlled below 80°C. For systems that run continuously for long periods, it is advisable to install a cooler in series at the oil outlet. After approximately 200 hours of motor operation, the first oil change should be carried out and the oil filter cleaned; thereafter, follow the equipment requirements for regular replacement. During daily operation, attention should be paid to changes in oil color. If it turns black, it may indicate overheating; if emulsion occurs, it may indicate water contamination.
HANJIU Technology’s series of hydraulic motor orbitals come with detailed installation and usage manuals and are supported by a professional technical team to assist users. The company has R&D centers in Beijing and Hangzhou, and relies on advanced manufacturing and testing equipment to conduct strict performance tests on each product. HANJIU not only provides reliable standard products but also offers customized services according to the specific needs of different equipment manufacturers to ensure perfect compatibility with the host machine. Choosing HANJIU means choosing reliable assurance throughout the entire product lifecycle.
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