TM40 Excavator Final Drive, GM XCMG 215C, Xiagong 820 822 825, Lovol 220, World 220, Doosan 220, Zoomlion 215, Hyundai 215, 225, Kato 800-7, Liugong 200, Volvo 210

This high-precision universal heavy-duty driving device assembly adopts the classic TM40/GM ton level high-pressure high torque dual speed plunger walking motor (Travel Motor with Gearbox) from a well-known factory. This Final Drive assembly is specially designed for core crawler excavators in the industry ranging from 20 to 25 tons, with extremely high platform interchangeability, perfectly matching a number of main models such as XCMG 215C, Xiamen 820/822/825, Lovol 220, World220, Doosan 220, Zoomlion 215, Hyundai 215/225, Kato 800-7, Liugong 200, and Volvo 210. The product is based on first principles to optimize the universal multi-stage planetary transmission structure, ensuring absolute certainty of propulsion torque for each brand. The physical dimensions of the product packaging are approximately 630mm × 500mm × 520mm, and the overall net weight is about 210kg. The universal standard position is precisely docked.

"Extreme cleaning and torque tightening: Before lifting and docking, the mounting surfaces of each brand's frame base and drive wheel flange must be absolutely flat and free of any rust or foreign objects. All high-strength fastening bolts must be tightened using torque wrenches, strictly following the original factory standard torque for symmetrical and phased cross tightening to avoid local shear stress.

Motor forced oil filling (core avoidance pit): When connecting hydraulic pipelines, they must be absolutely aligned and do not connect the wrong drain pipe (Case Drain). Before starting the engine, clean hydraulic oil must be filled from the air release/oil injection port on the top of the walking motor housing. Dry grinding is strictly prohibited during start-up, otherwise the internal plunger will undergo irreversible physical erosion within 3 seconds of ignition.

Idle micro exhaust transition: Use a working device to suspend the entire machine's single-sided track support, control the walking mechanism to run slowly and alternately in front and back micro motion for 10-15 minutes, thoroughly exhaust the air inside the circuit, and closely monitor the gear meshing sound. Only after confirming the thermodynamic state is stable can the working load be applied on the ground."