h16tp(x - AJ Maskin AS

Sheet C035CORRECTIVE MAINTENANCE SHEETCHANGING A WHEEL REDUCING GEAROR A TRAVEL HYDRAULIC MOTORFolio 1/2Caution!Ensure that the oil is not toohot.Caution!Use a container to collect oilto prevent pollution of theenvironment.Caution!It is essential to put thecomponent in slings beforedismantling/re-assemblingit.1 - Preliminary operations• Put the machine in the maintenance configuration (see correspondingparagraph).• Switch off electric power (see corresponding paragraph).• Remove the wheel corresponding to the element to be removed (see correspondingsheet).2 - Removing a wheel reducing gear or a hydraulic motorNB:NB:Figure 1: steering axle.Figure 2: fixed axle.• If working on a steering axle, uncouple the steering connecting rod fromthe pivot.• Mark and disconnect the hoses of the hydraulic motor (1) and reducinggear (2).Unscrew the hose slowly to release residual hydraulic pressure.• Put caps on the hoses.• Place a wedge under the wheel reducing gear.• Remove the reducing gear / motor assembly by removing the fixing bolts(3).• Unscrew the screws (4) fixing the hydraulic motor to the wheel reducinggear.• Replace the defective hydraulic motor or reducing gear.3 - Installing a wheel reducing gear or a hydraulic motor• Assemble the hydraulic motor to the reducing gear using fixing screwsequipped with new grower washers.• Fix the hydraulic motor using the four fixing bolts, equipped with new elasticwashers.• Re-install the reducing gear / motor assembly and secure with fixingscrews. Tighten to the torque recommended (see tightening torque valuetable).• In the case of a steering axle, couple the steering connecting rod to thepivot.• Reconnect the hydraulic hoses to the hydraulic motor and the reducinggear hose equipped with a new seal, according to the marks made whendismantling.4 - Additional operations• Check the level of oil in the wheel reducing gear (see correspondingsheet).• Put the wheel back (see corresponding sheet).• Put the machine back into the operational configuration.• Make several travel movements to purge the hydraulic circuit.• Check the level of the hydraulic oil tank.