h16tp(x - AJ Maskin AS

Sheet C131CORRECTIVE MAINTENANCE SHEETCHANGING A NON-RETURN VALVEFolio 1/2Caution!Ensure that the oil is not toohot.Caution!Use a container to collect oilto prevent pollution of theenvironment.1 - Preliminary operations• Put the machine in the maintenance configuration (see see correspondingparagraph).• Switch off electric power (see see corresponding paragraph).• Close the pump oil suction valve.2 - Removing a non-return valve fitted towards the hydraulic filter• Remove the fixing collar (ref. 2 Photo 6) from the hose on the filter support.• Unscrew and cap the hose (ref. 3 Photo 6).• Unscrew the connector (ref. 4 Photo 6).• Unscrew the union (ref. 5 Photo 6) and adapter (ref. 4 Photo 6) of thevalve (ref. 1 Photo 6).Photo 6Photo 774653263 - Installing a non-return valve• Check the direction of oil passage, shown by an arrow (ref. 6 Photo 7)engraved on the valve body (ref. 1 Photo 6).• Screw the union (ref. 3 Photo 6) and adapter (ref. 4 Photo 6) onto thevalve.• Screw the adapter (ref. 4 Photo 6) onto the T (ref. 7 Photo 6).• Screw the hose (ref. 3 Photo 6) into place.• Put the collar into place (ref. 2 Photo 6).• Open the pump shut-off valve.• Put the machine back in the operational configuration.• Make several movements using the replaced non-return valve to purgethe circuit.• Check that the corresponding movement is made correctly.4 - 4 - Removing a non-return valve fitted on an emergency electropump unit(ref. 8 Photo 8)• Unscrew and cap the hose (ref. 3 Photo 6).• Unscrew the connector (ref. 4 Photo 6).• Unscrew the union (ref. 5 Photo 6) and adapter (ref. 4 Photo 6) on thevalve (ref. 1 Photo 6).•5 - Installing a non-return valve• Check the direction of oil passage, shown by an arrow (ref. 6 Photo 7)engraved on the valve body (ref. 1 Photo 6).• Screw the union (ref. 3 Photo 6) and adapter (ref. 4 Photo 6) onto thevalve.• Screw the adapter (ref. 4 Photo 6) onto the T (ref. 7 Photo 6).• Screw the hose (ref. 3 Photo 6).• Open the pump shut-off valve.• Put the machine back in the operational configuration.• Make several movements using the replaced non-return valve to purgethe circuit.• Check that the corresponding movement is made correctly.