general recommendations - safety - AJ Maskin AS

SHEET C024CORRECTIVE MAINTENANCE SHEETREPLACING A POTHOLE CYLINDERSheet 1/2Caution!Ensure that oil temperatureis not too high.3 46 7 5 1 21 - Preliminary operations• Put the machine into the maintenance configuration (see § 7.2, page 51).• Cut off the electric power supply (see § 7.3, page 52).2 - Removing a pothole cylinder• Mark and disconnect the two hoses (2) of the pothole cylinder (1). Fit caps tothe hoses.• Remove the special screw (5), washer (6) and nut (7) from the lower axle.• Remove the pin (3) and washer (4) from the cylinder’s upper joint and removethe pothole cylinder.3 - Replacing a pothole cylinder• Put a new pothole cylinder into place on the upper axle.• Put the washer into place and secure a new pin.• Fix the pothole cylinder rod yoke with the special screw, washer and a newnut.• Reconnect the hydraulic hoses according to the marks made when dismantling.• Put the machine back into the operational configuration.• Perform several up/down movements from the plaform above 1.5 meters (or4ft92in) and travel movements with the platform lowered to purge the hydrauliccircuit.• Check that the pothole protective system extends and retracts correctly.NOTA :If counterweights are fitted with the potholes, check that their positionremains correct before replacing the cylinder.