h16tp(x - AJ Maskin AS

CORRECTIVE MAINTENANCE SHEETSheet C066 Folio 1/1CHANGING THE DISTRIBUTION HYDRAULIC BLOCKCaution!Ensure that the oil is not toohot.HA16/18PX - HA46/51JRT11 - Preliminary operations• Put the machine in the maintenance configuration (see correspondingparagraph).• Switch off electric power (see corresponding paragraph).2 - Removing the hydraulic block• Mark and disconnect the hydraulic block’s (1) electric connections (2).• Mark and disconnect the hoses (4) of the hydraulic block.NB:Unscrew the hoses slowly to release residual hydraulic pressure.• Fit caps to the hoses.• Remove the lower protective plate (5) (only in presence of this one ).• Place a wedge under the hydraulic block.• Remove the hydraulic block by removing the fixing screws and washers(4).• Take out the block from the turntable.• Dismantle the hydraulic block to replace one of its elements if necessary(see corresponding sheet).3243 - Installing the distribution hydraulic block• When installing a new distribution block, equip the new block with theunions retained from the old block, after replacing the O-rings. Tighten tothe recommended torque (see corresponding paragraph).• Put the hydraulic block into place and fix using the screws equipped withnew toothed washers.• Install the lower protective plate.• Reconnect the hydraulic hoses according to the marks made during dismantling.Tighten to the recommended torque (see corresponding paragraph).• Reconnect the hydraulic block’s electric connections, according to themarks made during dismantling.• Put the machine back into the operational configuration.• Make several lifting, travel, steering and turntable rotation movements topurge the hydraulic circuit and test block operation.• Check the level of the hydraulic oil tank.HA16/18PX New Design254 1 3 21HA46/51JRT New DesignH14/16 - HB40/44J