GBS Gearbox Services international brand of Schaaf- en Boorwerk Rotterdam B.V.
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Inspection and repair on gearbox of brand RENK AWS-315

Inspection and repair on gearbox of brand RENK AWS-315

  • RENK
  • AWS-315
  • Input=___ rpm / ____ KW
  • RENK gearbox repair
  • NL

Scope of work:

We performed an inspection and repair on a gearbox RENK AWS-315.

A client from Netherlands came to us with this RENK AWS-315 gear unit. We reviewed the unit and did a total overhaul. After the overhaul was done, we did a lot of testing and prepared the gearbox to be shipped back to this client.

Scope of work:

It is of great importance to the overall condition of the gearbox , to solve the hydraulic problem.

The problem of insufficient lubrication pressure is believed to be caused by a defect in the overflow valve (pos. 35) and/or the accumulating valve.

The high clutch control pressure - when running both pumps simultaneously - is most likely caused by a malfunction of the accumulating valve.

A faulty pressure gauge (pos. 32) prevents the lubricating oil pressure from being measured immediately after the pumps. But it also prevents the monitoring of the oil-pressure difference before and after the oil-filter and the oil-cooler.


To be able to solver the problem and avoid any consequential damage to the gearbox. It is recommended that the following steps are taken on short notice

- The disassembly and overhaul of the overflow valve
- The disassembly, overhaul and recalibration of the accumulating valve
- Replacing the faulty pressure gauge

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Location - date:

The Netherlands - January 2016

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