h16tp(x - AJ Maskin AS

CORRECTIVE MAINTENANCE SHEETSheet C127 Folio 1/1CHANGING THE EMERGENCY UNITCaution!Use a container to collect oilto prevent pollution of theenvironment.21 - Preliminary operations• Put the machine in the maintenance configuration (see correspondingparagraph).• Switch off electric power (see corresponding paragraph).• Close the hydraulic tank suction valve.2 - Removing the emergency unit• Remove the cover on the reducing gear side (see corresponding sheet).• Disconnect the battery terminals (see corresponding sheet).• Disconnect the unit’s supply terminals (1) after marking them.NB:Unscrew the hoses slowly to release residual hydraulic pressure.• Mark then disconnect the hoses (2) at the emergency pump.• Put caps on the hoses.• Unscrew the tightening flange (3) of the emergency unit.• Remove the emergency unit by pulling it upwards.1 33 - Installing the emergency unit• Put the emergency unit into place, making sure it is the right way round.• Screw the tightening flange (3) back onto the emergency unit.• Reconnect the hydraulic hoses according to the marks made during dismantling.• Reconnect the supply terminals according to the marks made during dismantling• Open the hydraulic tank suction valve.• Put the machine back in the operational configuration.• Perform an emergency operation to check that the emergency unit worksproperly.4 - Additional operations• If it is necessary to change the calibration valve unit of the emergency circuit:- Perform the preliminary operations.- Calibrate the emergency unit at 110 bar:• Make a movement to its limit (e.g. telescoping).• Adjust the screw (4).- Open the hydraulic tank suction valve.- Put the machine back in the operational configuration.- Perform an emergency operation to check that the emergency unit worksproperly.4