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Alloy Wheel Refinishing CNC Lathe Maintenance

    • 2979 posts
    May 20, 2022 10:58 PM EDT

    To achieve the best finishes on alloy wheels with using hi-tech diamond cutting rim refinishing CNC lathe, the automatic oil system must be working all the time to provide accurate and smooth motions designated by CNC control system. A reliable automatic lubrication system is a must for a top-quality alloy wheel diamond cutting CNC lathe.Get more news about Automatic Cnc Lathe,you can vist our website!
    On Lehigh MR-2540 / MR2940 / MR-3360 alloy wheel repair CNC lathes, automatic oiler system is designed to provide constant oil lubrication to the cross-slide surface for cross feed motions and both front and rear longitudinal bed ways. In addition, both X-axis ball screw and Z-axis ball screw are lubricated from the same automatic oil system whenever the machine is turned on.
    For the best performance of this automatic lubrication system, it is important to understand how this system works and where all the connections are located so that regular maintenance work can be performed and carried out correctly.
    From above picture for the oil distribution manifold assembly, one can see that two types of oil check valves are used, including (7) PV1 type and (2) PV3 type. The difference between PV1 & PV3 types of oil check valves is the oil volume allowed to be distributed from each type of valve.
    Two PV3 type of oil check valves are used to allow more oil volume to be applied for X-axis ball screw (the second valve from the right-hand side with flexible hose) and Z-axis ball screw (the fourth valve from the right-hand side). All oil check valves should be inspected once every six months. And old valves should be replaced with new ones once every two years to make sure that this automatic oil system is fully functional.
    From the oil distribution manifold, there is another flexible oil hose connected between the second the oil check valve (PV3) from right side to the ball nut location for X-axis ball screw (refer to the following pictures and details).
    It is especially important to provide required and necessary maintenance checks on this oil hose to make sure that there is enough lubrication oil going to be delivered to X-axis ball screw.
    Keeping your CNC lathe lubricated all the time should be one of the Most Important Maintenance Jobs for all wheel repair shops. For this reason, it is very important to check the automatic oiler once a week for its normal function as part of the maintenance. The simple test to verify the function of the automatic oil system is to turn the timer onto the continuous mode (0 minute) for a couple of minutes. Then, you can check on the bed ways for fresh oil drops coming from auto oil system. If YES, then, that is working well.
    Please note that the volume of the lubrication oil onto the bed ways and X-axis and Z-axis ball screws can be controlled by adjusting the TIMER (see the third picture above on right). From this unit, the timer is set at 35 minutes, which means the oil pump works every 35 minutes when the CNC lathe is powered up.
    In general, for most wheel shops, you can set up the timer around 30 minutes (at 12 o’clock position). When you must use alloy wheel repair and refinishing CNC lathe for 8 hours each day, then, you should set the timer at 15 to 20 minutes to pump lubrication oil more often to the cross and longitudinal bed ways and ball screws on both X & Z axes.
    In case that you have any doubt for the function of the automatic oil system, it is necessary to verify the oil pump function first at the automatic oiler unit by removing the flexible hose to see the oil flow from the oil pump. If the oil is flowing out there, then, continue to check the distribution terminal block, or manifold, for the functions of the flexible oil hose and all check valves including (7) PV1 type and (2) PV3 type, which is in the front of the lathe as shown in the pictures above. It is especially important to verify all the oil check valves from manifold location to make sure that they are working correctly to provide oil lubrication to all these components per original design.