The part coded 706-7G-41320 is preferred to eliminate power transmission losses in the upper structure slewing mechanisms of crawler excavators. As one of the most critical components of the hydraulic system, the 706-7G-41320-SHAFT transmits rotational movement with pinpoint accuracy within the swing motor assembly.
Compatible Machines and Replacement Criteria
It is fully compatible with the hydraulic swing reduction gear assembly of PC200-8, PC220-8, PC240-8, and PC290-8 series excavators. Subjected to heavy loads and torsional stresses during rotation, this shaft component ensures the preservation of housing tolerance limits.
Installation and Inspection Process
- The bearing surfaces of the rotor shaft must be checked for wear or hairline cracks.
- During installation, ensure that runout values remain within the manufacturer's tolerance limits.
- The hydraulic oil level and cleanliness inside the reduction gear must be checked after replacement.
Verify part number 706-7G-41320 with your serial number to fully support your machine's swing performance.
