Maintenance -Axles Axle drive shafts The axle drive shafts are fitted with sealed universal joints and therefor require no maintenance. However it is essential that swivel housing area is kept clean. When working in adverse conditions any mud or crop debris that accumulates around the drive shaft must be washed out daily. If it is left to accumulate it will wear the hub and axle oil seals which will eventually cause oil leaks and premature wear to the wheel and drive shaft bearings. Wheel hubs The wheel hub/epicyclic units on the Stealth axles are filled with oil. The level should be checked every 300hrs. The hub should be rotated until the oil level/filler plug is in the position as shown on the right. Use EP80/90 for topping up. The oil should be changed every 1200 hrs. To drain the oil rotate the hub until the level/filler hole is at its lowest position.   Wheel Bearings The wheel bearings should be checked regularly for signs of play. Should any play become evident they can be adjusted by either T.J. Frazier, your dealer or by a suitably qualified engineer. Axle Oil levels Use SAE 90/140 gear oil for topping up the axle oil levels. The filler/level plugs are shown on the diagrams on the right The axle oil should be changed every 1200hrs.     Axle breathers Should any axle oil leaks develop, the axle breather should be removed first and checked to make sure it is not blocked. Some breathers have a small ball fitted inside which is prone to seizure, particularly when spreading fertiliser.   Rear axle (4ws version shown) Front axle < 34 >