NOTE: This topic only applies to Machine 180
The Overhead Carton Loader assembly shafts use a non-lubricated split linear bearing manufactured by Igus, Inc.
First, a few precautions and notes:
• | For ease access, the Overhead Carton Loader assembly should be lifted into the changeover position |
• | Follow Lockout/Tagout procedures |
• | There are four split bearings inside each bearing enclosure |
o | Do not break or tear o-rings when removing bearings |
o | It is recommended that all four bearings be replaced at the same time |
• | Work will need to be done on both sides of the machine |
Follow these steps to remove and replace the failed bearing:
1) | Raise the Overhead Carton Loader assembly into the changeover position |
2) | Following the first part of the changeover routine, remove all loader plates |
3) | Follow the Lockout/Tagout procedures of your facility |
4) | On the non-operator side of the machine, slide the load gate air cylinder toward operator side of the machine |
5) | Manually rotate the Overhead Carton Loader to make the non-operator side end cap accessible |
6) | To make the operator side end cap accessible, remove the upstream containment rail by removing the four 7/16" bolts |
7) | Remove screws and end caps |
8) | Carefully pull out split bearings |
a) | Replacing o-rings requires opening both drive chains and removing the containment assembly from the Overhead Carton Loader |
b) | If necessary, gently pull on the exposed bearing end with channel locks |
10) | Remove and replace split bearing and clearance gasket |
12) | Move bearing with o-rings into position |
a) | It may be helpful to apply a very small amount of grease on the o-rings to slide the replacement bearing into position |
These split linear bearings are lubricant free; do not apply any grease to the bearing itself
|
14) | Reinstall upstream containment rail |
15) | Move the next loader carriage into position |
16) | Repeat previous steps for each four bearings in each of the 11 loader carriages |
17) | Install correct loader plates |
18) | Restore Lockout/Tagout |
19) | Lower Overhead Carton Loader into the run position |