JCB360 JS360 Excavator Swing Motor Hydraulic Slew Drive Assembly 20/952286, M2X210CHB

This high-precision heavy-duty rotary motor assembly (Hydraulic Slew Drive Assembly) has a core original part number (PN) of 20/952286, and the core adopts Kawasaki's classic M2X210CHB series high-pressure high torque inclined disc plunger rotary motor. This assembly serves as the absolute power heart for 360 ° rotation and high inertia braking of the entire machine, specially designed for JCB heavy-duty hydraulic excavators, perfectly matching JCB360, JS360 and other 36 ton core main mining models. The product is based on first principles optimization of flow channels and mechanical efficiency, deeply bearing extreme alternating loads under heavy excavation conditions, ensuring absolute certainty of control response. The physical dimensions of the product packaging are approximately 540mm × 420mm × 450mm, with an overall net weight of approximately 115kg. The original factory standard position is precisely aligned.

"Extreme cleaning and torque tightening: Before lifting and docking, the input flange end face of the rotary reducer gearbox must be thoroughly cleaned and free of foreign objects and rust. Tighten bolts using torque wrenches strictly according to the original factory standard torque for symmetrical and phased cross tightening, to prevent slight deformation or abnormal vibration of the shell caused by uneven force on the end face.

Forced oil filling (core pit avoidance): When connecting hydraulic pipelines, they must be absolutely aligned, especially the case drain pipeline. Before starting the engine, clean hydraulic oil must be filled from the air release/oil injection port on the top of the motor housing. It is strictly prohibited to start dry grinding, otherwise the internal plunger and distribution plate will be instantly eroded within 3 seconds of ignition.

Low pressure transition and exhaust: After the first ignition, control the vehicle body to rotate left and right at a small angle and slow speed alternately for 10-15 minutes in an unloaded state for automatic exhaust of the system. After confirming that the oil temperature is normal and all bubbles are completely removed, the normal operating load can be gradually applied."