MagneMotion MagneMover LITE, Руководство пользователя, Страница: 296 / 382

Maintenance
Preventive Maintenance
12 MagneMotion
Rockwell Automation Publication MMI-UM002E-EN-P - March 2016
Concentric Bearings
Concentric bearings are not adjustable and should be tightened to 19 N-m [14 ft-lb] at all
times. Once tightened, apply Loctite 290 to the nuts on the top of the carriage and allow the
Loctite to cure for 3 hours at 22° C [72° F] before using the vehicle.
Eccentric Bearings
Eccentric bearings are adjustable, enabling them to be rotated either closer to or further away
from the rail. If the vehicle can be rocked from side to side or front to back, then there is too
much movement and one or both bearings will need to be readjusted and rotated closer to the
rail until the movement is eliminated. If the vehicle does not move easily along the rails, rotate
one or both bearings further away from the rails.
Adjustments made to a vehicle’s eccentric bearings, in relationship to the rail, will dictate how
easily the vehicle moves along the rail. Note that when the bearings are adjusted the drag force
for the vehicle must not exceed the limits shown in
Table 7-2 . Refer to the cut-away view
shown in Figure 7-5 , to make adjustments to the eccentric bearings on a vehicle.
1. Stop all motion on the section of the MagneMover LITE transport system where the
vehicle will be adjusted.
2. Using a socket wrench, loosen the nut on the eccentric bearing to be adjusted on the
top of the vehicle (refer to
Figure 7-5 ).
3. Using a thin open ended wrench, turn the bearing nut to rotate the eccentric bearing
either closer to (counter-clockwise) or further away from (clockwise) the rail.
4. Test the bearing’s position by moving the vehicle on the rail.
• If the vehicle can be rocked from side to side or front to back, rotate the bear-
ing CCW (closer to the rail) until the excess movement is eliminated.
• If the vehicle does not move easily along the rail, rotate the bearing CW (fur-
ther away from the rail) until the binding is eliminated.
5. Secure the bearing in place by holding the bearing nut firmly with a thin open ended
wrench while tightening the nut on the top of bearing to 19 N-m [14 ft-lb].
6. Apply Loctite 290 to the threads on the nut on the top of the carriage.
NOTE: The Loctite must cure for 3 hours at 22° C [72° F] before using the transport
system.
Table 7-2: Precision Rail Vehicle Drag
Vehicle Type Maximum Drag
Single Array 2.80 N [10.7 ozf]
Dual Array 5.86 N [21.1 ozf]