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Sheet C128CORRECTIVE MAINTENANCE SHEETCHANGING THE SLEW RINGFolio 1/6Caution!Ensure that the oil is not toohot.Caution!Make sure that the liftingmeans are in good conditionand of sufficient capacity.Caution!Use a container to collect oilto prevent pollution of theenvironment.Caution!It is essential to put thecomponent in slings beforedismantling/re-assembling it.1 - Preliminary operations• Turn the turntable to the locking position.• Put the machine in the maintenance configuration (see see correspondingparagraph).• Switch off electric power (see see corresponding paragraph).• Close the valve on the pump suction circuit at the hydraulic tank.• Disconnect the battery (see corresponding sheet).• Remove the covers and the two support plates (see corresponding sheet).• Remove the boom assembly (see corresponding sheet• Remove the counterweight (H14/HB40: 700 kg / 1543 lb - H16/HB44J:1450 kg / 3197 LB) (Photo 21).• Mark and disconnect the two hoses (ref. 1 Photo 2) (located in the chassis)of the steering cylinder and plug the connectors.NB:Unscrew the hoses slowly to release residual hydraulic pressure.Photo 21Photo 21 - Slinging• On the travel block, mark then disconnect the hoses (ref 1, 2, 3, 4 and 5Photo 3) coming from the hydraulic swing joint. Put caps on the connectors.Photo 35 3 2 4 1