Mitsubishi Electric MP-J25-PS, Technical Manual

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(4) Set the PS unit install jig <9> to the bottom of the clamp rotating unit <1> which has hatched line in
below figure. The clamp rotating unit <1> to be placed on the PS unit install jig <9>. In this time check if
there is no gap with bottom of the clamp rotating unit <1> and PS unit install jig <9>. In the other hand,
check if the PS unit install jig <9> is vertical to the slide plate with no gap.
Note The clamp rotating unit <1> is necessary to install parallel with slide plate and adjust the bottom of
the clamp rotating unit position to be 74.8 mm from top of the slide plate. For the steady and smooth
installing please use PS unit install jig which included in this devices package.
(5) Tighten the three screws <6> by referencing previous paragraph (1) and four screws <4>, two screws
<8> by referencing previous paragraph (2), the clamp rotating unit <1> fixed.
(6) To confirm if the clamp rotating unit <1> is parallel with slide plate, rotate the clamp rotating unit <1> in
the any direction and check the install condition same as previous paragraph <4>. If necessary loosen
the screws and readjust the installing position.
(7) After install the clamp rotating unit <1>, take the PS unit install jig <9> apart by removing the wing bolts
<11> on the slide plate and remove from the sewing machine.
<1>: Clamp rotating unit <9>: PS unit install jig <11>: Wing bolt
<9>
<1>
No gap
<11>
No gap