Defect Elimination on Slew Drives

One of our customers found themselves in a bind when the slew drives on their diggers were found to be failing prematurely. Limited support was being provided by the OEM at the time and as a consequence, they approached Geographe for a solution through failure analysis since each new slew drive was costing them in excess of AUD$85,000.

failure analysis slew drive

failure analysis slew drive

Upon investigation, the secondary planet carrier was found to be poorly engineered. This led to prematurely wearing the planet carrier spline which in turn quickly contaminated the lubricating oil. As a result, this accelerated bearing and gear wear leading to catastrophic failure and total loss of drive.

 

In addressing the metallurgical shortcomings, Geographe came up with a solution that is both comprehensive and cost effective. To avoid the significant cost of a new planet carrier, we manufactured and fit a case hardened insert into the existing, prepared housing. The insert easily accommodates the associated loads and is replaceable should the need arise.

failure analysis slew drive

Wanting to get to the root cause of a recent failure? Our technical services team and are here to help. Contact us on 1800 999 240 or email sean.martin@geographe.com.au for further assistance.