Replacement is not always the right answer for a hydraulic component. A pump with worn rotating groups, a travel motor with failed seals, a swing motor with internal leakage or a scored control valve can often be rebuilt for less than a new unit — if the work is tested properly afterwards. The hydraulic repair solution published on Kyotechs' official website is built around that sequence: a professional hydraulic maintenance team, hydraulic testing machines, and a test video supplied for every rebuilt item so the customer sees the component working before it returns.
What the Service Covers
- Components: hydraulic pumps, travel motors, swing motors, hydraulic main control valves and their associated spare parts.
- Two routes: refit (serviceable units are matched and refitted to the customer's machine and tested) or rebuild (the unit is opened, internals inspected, broken components replaced, then hydraulically tested; the exterior is repainted).
- Evidence: test videos of the components in operation are provided to the customer for both routes.
- Process guidance: the service includes explanation of the repair and rebuild process, so the customer's own team understands what was found and done.
- Diagnosis: Isuzu IDSS diagnosis is offered within the hydraulic programme for Isuzu-engined machines (Hitachi, Case, Sany, Sumitomo, JCB and XCMG excavators, and Isuzu trucks).
- Test machines: hydraulic test machines are also supplied as products — stable, cost-effective units for workshops that test their own components.
The Process, as Published
| Step | What happens |
|---|---|
| 01 — Part number and model | The customer provides the part number and machine model for an initial check. |
| 02 — Refit option | Replacement items are refitted to suit the machine; components are tested thoroughly and operation videos are provided. |
| 03 — Rebuild option | The used component is opened and inspected; broken parts are replaced with quality parts; the unit is hydraulically tested, repainted, and supplied with testing videos. |
Components that are beyond economical repair come back as a parts conversation instead — the pump, travel motor, swing motor and control valve pages list the documented replacements. Turnaround for a repair is confirmed after the unit is assessed; this page does not promise a fixed repair period, because the honest answer depends on what the inspection finds.
Frequently Asked Questions
How do I know the rebuilt component actually works?
Every rebuilt item is supplied with a test video of the component in operation. That is a published part of the service, not an extra — ask for it by name when you enquire.
Repair or replace — which is cheaper?
It depends on the failure. Seals, bearings and rotating-group wear usually rebuild well; cracked housings usually do not. The process starts with the part number and the symptoms, and the assessment decides the route before money is committed.
Do you sell the test equipment itself?
Yes — hydraulic test machines are part of the published programme for workshops that want their own testing capability.
What to Send With a Repair Enquiry
A repair assessment starts from the same evidence as a parts order: the component's part number, the machine model, and an honest account of the failure — pressures lost, drift, noise, leakage, and what has already been tested. Photographs of the unit's plates and ports help the team plan the bench work. On that evidence the first reply separates the likely routes: seals and service items, a rebuild candidate, or a component whose housing damage makes replacement the sensible spend. Shipping a heavy hydraulic unit is itself a cost, so the assessment happens on paper first; the unit travels when the route is agreed, not before.