Hitachi EX1200-6 Travel Assembly & Travel Gearbox: Parts, Part Numbers, Failure Signs and Replacement Guide Quick Answer The EX1200-6 travel assembly (final drive / travel device) is the track-drive unit that converts hydraulic power into the high-torque rotation of the drive sprocket. It combines a hydraulic travel motor with a multi-stage planetary gearbox. For the Hitachi EX1200-6 mining ex...

Quick Answer: The TM40 travel assembly is a two-speed hydraulic travel motor combined with a planetary final-drive gearbox, supplied by OTTO Parts for 18-25 ton excavators — Hyundai R210-7, Doosan DX225, Volvo EC210B, Sany, XCMG, LiuGong and more. The unit weighs 298 kg (packing 52 x 52 x 60 cm) and uses 30 track bolt holes of 36 mm plus 30 sprocket holes of 63 mm, while SH200-1 and R210-7-class m...

Quick Answer: The Hitachi ZX670-3 travel gearbox (walking gearbox / final-drive reduction box) is supplied by OTTO Parts under part numbers 4641493 and 9254462 — a complete travel reductor assembly for ZX670-3 and ZX670-5G machines (also listed for ZX650-3, ZX670-5B and the LC/LCH/LCR variants). It weighs 750 kg and ships in an 83.5 x 83.5 x 69 cm crate. The unit uses a thickened high-strength hou...

Quick Answer: The Komatsu PC210-7K hydraulic pump assembly is supplied by OTTO Parts under part numbers 708-2L-00202 / 708-2L-00200 / 708-2L-00203 — the twin variable-plunger main pump for the European -7K generation, listed for PC210-7K, PC210LC-7K, PC230NHD-7K, PW200-7 and PW220-7K. Net weight is 181.6 kg. The assembly uses a variable plunger structure with precise load-sensing control for abund...

Quick Answer: The CAT 330GC final drive is a complete planetary travel assembly supplied by OTTO Parts under part numbers 593-7299 / 593-7301 / 596-3804 / 593-7298 / 596-3805 / 593-7300. It weighs 351 kg and is listed for 330GC, 330, FM538, 538 and 330MHPU machines. Four points decide whether it is right for your machine: a planetary gearbox built for high torque output, two-speed auto shift for f...

Quick Answer: The Komatsu PC200 — the world's most common 20-tonne excavator — runs a HPV95 tandem main pump across the PC200-6, PC200-7 and PC200-8 generations, with assemblies such as 708-2L-00500 for the PC200-8 and 708-2L-00055 for the PC200-6/7. The classic failure signs are slow and weak functions that worsen when hot, drifting, hot hydraulic oil, a whine or knock under load, and a main reli...

The excavator slewing bearing is the rotating joint between the upper house and the undercarriage. It lets your machine swing 360 degrees under heavy loads. Replace it when you notice abnormal noise, vibration, play, grease leakage, or raceway damage, or after it reaches its rated service life. Ignoring these signs causes costly downtime and damages the swing drive and structure. A worn komatsu pc...

Quick Answer: A final drive is a travel motor and a planetary gearbox that move the machine, and when it fails it usually announces itself first. The seven warning signs you cannot ignore are: loss of travel power or one track weak, the machine pulling to one side, grinding or whining while travelling, travel drift on a slope, oil weeping from the final drive, black burnt oil or metal on the drain...

Quick Answer: There is no single number for how long an excavator final drive lasts in mining — it depends on duty cycle, oil discipline, undercarriage alignment and the grade of the unit. A commonly used benchmark for a well-maintained travel gearbox is on the order of 10,000 hours, but neglected mining machines can fail at a fraction of that, and well-serviced ones can exceed it. Rather than cha...

Quick Answer: The SOLAR 340LC-V final drive is a complete travel assembly — an axial-piston, two-speed travel motor bolted to a three-stage planetary reduction gearbox with a built-in mechanical parking brake. OTTO Parts lists it under part numbers 401-00331 and 401-00331B, weighing 388 kg and catalogued for the SOLAR 340LC-V and SOLAR 300LL. Published machine specifications for the SOLAR 340LC-V ...

Quick Answer: The Komatsu PC200 (20-tonne class) and PC300 (30-tonne class) both use a hydraulic travel motor bolted to a planetary reduction gearbox, but they are different units and are not interchangeable. The PC200-8 uses the 20Y-27-00500 travel motor with the 708-8F-00250 motor assembly; the PC300-8 uses the 207-27-00590 and 207-27-00591 travel motors. The PC300 unit is bigger, heavier and bu...

Quick Answer: A final drive holds only a small volume of oil, yet that oil carries the entire load of the gear train. Change it on hours, not on hope: renew it after the first break-in interval and then at the interval your machine manual states, shorten the interval in mining, wet or high-hour conditions, and always inspect the drain-plug magnet. Sampling the oil and watching the drain plug tell ...