MaintenanceBLOCK VALVES FITTED TO ALL CYLINDERSAll machine’s cylinders are equipped with blockvalves: Block valve on lifting cylinder Block valve on slave cylinder Block valve on boom telescoping cylinder Block valve on attachment tilting cylinder Block valve on outirigger cylinders Block valve on rear axle locking cylinder Block valve on axle levelling cylinderDANGERAlways use the lock ring of the lifting cylinder(see picture below), when carrying outmaintenance on the lifting cylinder block valveor, in general, any operation in the area underthe boom:I. Lift and extend the boomII. Unscrew the two screws on the frame (pos.A) to release the ringIII. Put the ring on the lifting cylinder rod (pos.B)IV. Lock the ring by tightening the screwsprovided on the ring.Operator’s Manual First Edition - Second Printing118 GTH-4013 SX - GTH-4017 SX - GTH-4013 EX - GTH-4017 EX Part No. 57.0009.0540Courtesy of Crane.Market
