4. Maintenance and Inspection
43
5) T Use a spatula to push the grease in between the slider and the base, or supply grease with a
grease injector and move the slider to spread the grease out evenly.
• Confirm the ball feeding surface on the guide is glossy with oil of the grease. Do the same work
again and again till the grease gets spread out enough.
• In case excess grease has been applied, wipe it away.
(Note) For brake-equipped type, connect a controller and operate it with JOG operation.
Caution: Supplying too much grease may increase sliding resistance and load to the motor,
resulting in a drop of performance.
6) After grease supply is finished on one side, put back the side cover.
Hitting it on the edge of the stainless steel sheet when attaching may cause the sheet damaged or
meandered, which may result in earlier degradation or wear-out of the sheet.
Therefore, to avoid a touch to the sheet edge, insert a shim (approx. 0.1 to 0.2mm) between the
sheet and cover to put the sheet up when pushing in the cover.
(Note) After the side covers are put back on, move the slider from right to left in the full stroke to
check such things as looseness of the stainless steel sheet.
[Refer to 4.7 Procedures for Replacement and Adjustment of Stainless Steel Sheet]
When attaching the side covers, tighten the screws with the tightening torque described below.
Type
Bolt Diameter
Tightening Torque
M2.6 hex socket head cap screw
45.8N•cm
BA4/BA4U
M3 cross recessed pan head machine screw
41.4N•cm
M3 hex socket head cap screw
83.0N•cm
BA6/BA6U
BA7/BA7U
M3 cross recessed pan head machine screw
41.4N•cm
Caution:
x
Pay attention not to have the stainless steel sheet bent forcefully or damaged when
working.
Also, there is a risk of getting hurt on the edge of the stainless steel sheet. Make
sure to have a safety countermeasure such as wearing gloves while working on.
x
In case the grease got into your eye, immediately go see the doctor to get
appropriate care. After finishing the grease supply work, wash your hands carefully
with water and soap to rinse the grease off.