swing motor gearbox replacement excavator

Quick Answer The single most effective way to extend your excavator hydraulic pump life is correct oil and filter maintenance. Most pump failures are not caused by the pump itself — they are caused by contaminated or degraded hydraulic oil. For a 20–45 ton excavator, change hydraulic oil every 1,500–2,000 hours, change the return filter every 500 hours, replace the suction strain...

Quick Answer Replacing an excavator hydraulic main pump typically costs $2,500–$15,000 for the pump assembly itself, depending on machine class, pump type and quality tier. A 20–25 ton excavator main pump costs $2,500–$5,000 (aftermarket) or $6,000–$12,000 (OEM); a 80–100 ton mining machine pump runs $10,000–$30,000+. Labour adds $800–$2,500, and downtime ...

Quick Answer The CAT 313GC hydraulic pump (Part No. 520-8589) is the main pump assembly for the 13-ton-class Caterpillar 313GC excavator — a compact, high-efficiency unit rated at approximately 247 L/min maximum flow and 35,000 kPa (5,075 psi) maximum pressure. RITO HYDRAULIC supplies this complete, ready-to-install assembly (net weight 74 kg) with OEM-parameter fit, covering the 313GC/315GC...

Quick Answer The Komatsu PC210-8K hydraulic pump (reference part numbers 708-2L-00701 / 708-2L-00700 / 708-2L-01701 / 708-2L-01700) is the main pump assembly for the 21-ton-class PC210-8K excavator. RITO HYDRAULIC supplies this complete assembly — net weight 162 kg — with OEM-parameter fit for easy installation and high replacement precision. Key characteristics: responsive electronic ...

Quick Answer The Caterpillar M315/M316/M317/M318 swing gearbox (reference part numbers 152-7375 / 474-4960) is the rotary drive assembly that turns the superstructure of these wheeled excavators. Built for high swing torque with a reliable integrated parking brake, it delivers powerful, smooth rotation even under heavy and eccentric loads. When it wears, operators notice jerky or hesitant swinging...

Quick Answer When an excavator swings slowly, stops suddenly, or creeps on a slope, the fault usually lies in one of three components: the swing motor, the swing gearbox (rotary drive), or the swing control valve. The quickest way to locate the fault is a three-step test: (1) check swing pressure against spec with the machine stalled — low pressure points to the pump or relief valve; (2) lis...

Quick Answer The TM40 travel assembly is a cross-brand final drive unit for 18–25 ton excavators, engineered to fit Hyundai R210-7, Doosan DX225, Volvo EC210B, and Chinese brands including Sany, XCMG and LiuGong. It delivers high torque output with stable, reliable travel on steep slopes, mud and complex conditions, with an integrated two-speed and parking brake for smooth starts and stops. ...

Quick Answer A swing motor is the hydraulic motor that powers the excavator's upper-structure rotation. When choosing a replacement, confirm four things: the machine model and serial, the part number on the old motor's plate, the brake and relief-valve configuration, and whether you need a complete assembly (motor + reduction) or the motor only. RITO HYDRAULIC supplies complete, individually teste...