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 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: 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 ...

Quick Answer: Sourcing final drives for a rental fleet is not the same as buying a single part. The goal is to get the right travel motor to a machine fast, at a predictable price, with a warranty you can rely on. Start from an accurate fleet list of models and part numbers, standardise on one supplier who can cover several brands, agree MOQ, lead time, packing and warranty in writing, and keep a ...

Quick Answer: TongMyung is a Korean maker of hydraulic components — pumps, motors and seal kits — and OTTO is an authorised TongMyung distributor. The reason Korean OEM-grade parts hold up better than unbranded aftermarket copies is not marketing: a branded part is built to a defined specification, heat-treated and machined to a controlled tolerance, inspected before it ships, and backed by tracea...

Quick Answer: An excavator undercarriage is five systems working as one: the track chain and shoes, the track rollers, the front idler and recoil spring, the drive sprocket, and the final drive that turns it. They wear as a set — a worn sprocket destroys a new chain within weeks, and a loose track overloads every roller behind it — so the correct buying unit is not one part but a matched group. Id...