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Liebherr MTC crane inspection and troubleshooting of jerky slew performance

ALATAS Middle East was called by ALATAS UK to conduct inspection and troubleshooting of jerky slew performance on a LIEBHERR MTC 2600-100 crane installed on a jack up ship in Great Yarmouth. The bad performance could be mainly recognized on a big radius.

The scope of the job included the following.
• Mobilization from Vienna to Great Yarmouth Port
• Discussed with the persons in charge the safe procedure for inspection
• Carried out slew function test
• During this test lot of clearance in the slew gear carrier appeared
• For further investigation upper bearing slides as well as the setting of the slew gear carrier had to be checked.
• In order to receive proper measurements slew gear box carriers had to be taken of .
• Measured main pins and borings on all 3 carriers to inspect if clearances are still kept or if excessive wear caused the problem
• An excessive axial clearance on the guide rollers was found to cause the problem as spacer shims were missing completely
• Reinstalled shims and slew gear carriers
• Carried out settings as per Manufactures procedure
• Carried out slew test with 3 different operators as the problem just came up intermittend
• Operators were satiesfied with the performance of the slew and gear box carriers remained steady during operation

 

 
Liebherr MTC crane repairs
Liebherr crane repairs
Liebherr crane repairs
Liebherr crane repairs
       
Liebherr crane repairs
Slew mechanism
Liebherr crane repairs
Liebherr crane repairs
       
Liebherr crane repairs
Liebherr crane repairs
Liebherr crane repairs
Liebherr crane repairs
       

Pin removal arrangment including hallow jack supplied by ALATAS

New axial support shims
Liebherr crane repairs
Liebherr crane repairs
       

 

 
 
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