general recommendations - safety - AJ Maskin AS

CORRECTIVE MAINTENANCE SHEETSHEET C011 Sheet 1/1REPLACING A VACUUM BRAKECaution!Ensure that oil temperatureis not too high.1 - Preliminary operations• Put the machine in the low configuration.• Cut off the electric power supply (see § 7.3, page 52).• Raise the machine using a jack or hoist.2 - Removing a vacuum brake (see figure 1)• Remove the pin (3) and nut (4) fixing the wheel and remove the wheel (1).• Place a wedge under the vacuum brake.• Disconnect the vacuum brake’s hose.• Fit a cap to the hose.• Remove the vacuum brake (2) by removing its fixing bolts (5) (6) (7).3 - Replacing a vacuum brake• Put the new vacuum brake (2) into place.• Secure the vacuum brake using the fixing bolts equipped with new elasticwashers (5).• Reconnect the hydraulic hose.• Put the wheel (1) into place and secure using the fixing nut and pin.• Put the machine back into the operational configuration.• Perform several brake/release operations to purge the hydraulic circuit.• Check the oil level in the hydraulic oil tank.34Wheel nut tightening torque :25 N/m2To fix the pin, the slot mustbe in front of an hole : at thistime we can screw until30 N/m.65 71Fig. 1