Product Features of YCM Hydraulic Motor

The YCM hydraulic motor has high housing strength and strong load-bearing capacity of internal dynamic components, with a wide continuous power range. The main features of the motor are as follows:

Adopts a crankshaft and a five-cylinder, five-piston mechanism with low excitation frequency, maintaining the original low-noise characteristic;

Has a large starting torque and excellent low-speed stability, enabling stable operation at very low speeds;

Utilizes a planar compensable oil distribution structure, which offers high reliability, low leakage, and convenient maintenance. The piston and plunger sleeve are sealed with sealing rings, ensuring high volumetric efficiency;

The crankshaft and connecting rod are supported by rollers, providing high mechanical efficiency; the rotation direction is reversible, and the output shaft can withstand a certain degree of radial and axial external forces.

1. Machinery Application Status

(1) The service time of the machinery;(2) Whether there were any abnormal conditions in the machinery before the failure occurred;(3) Whether the steam pressure, water temperature, and [ambient/operating] temperature are normal;(4) Whether the consumption of engine oil, fuel oil, and water is normal;(5) Whether the machinery operates stably, and whether there is vibration or abnormal noise;(6) Whether the machinery's start-up, acceleration, deceleration, and shutdown are responsive and reliable;(7) Whether the machinery's own power loss has increased, and whether the power output during operation has decreased;(8) Under what working conditions the hydraulic travel motor of the excavator operates;(9) Whether the machinery was under no-load, full-load, or light-load conditions when the failure occurred;(10) Whether the machinery was shut down immediately after the failure occurred.

2. Machinery Maintenance and Overhaul Materials

Check whether the machinery is not maintained in accordance with regulations or is in the process of maintenance and overhaul. Since operators are not familiar with the machinery's structure, the functions of its components, and technical requirements, it is easy to cause man-made machinery failures. Therefore, it is also necessary to carefully collect and understand information in this regard.

(Note: The phrase "液压马达如何调速" (How to adjust the speed of the hydraulic motor) in the original text appears to be a misplaced clause. It is not logically connected to the context of "machinery maintenance and overhaul materials," so it is translated independently here for accuracy. If it belongs to another section, the structure may need to be adjusted based on the full text.)