4. Maintenance and Inspection
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3) Remove the side cover attachment screws (at arrows) to detach the side covers on the both ends.
Screw size: M2.5, M3 (BA4/BA4U), M3 (BA6/BA6U, BA7/BA7U)
Do not remove the one in red circle.
Detach the side covers with the sheet plate remained on.
For some stroke patterns, there is another attachment screw on the side cover between two
screws on right and left ends.
Make sure to remove them all.
4) Remove the four M2.6 (for BA4/BA4U) or M3 (for BA6/BA6U, BA7/BA7U) screws holding the
pulley cover with a hex wrench to detach the pulley cover.
Screws
Pulley cover