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72. Install the presser lifter shaft on the arm and install the presser lifter.
73. Pass the presser bar over the presser spring and presser bar clamp.
Temporarily tighten the presser bar screw. (See Adjustment Procedure 13.)
74. Install the torsion spring on the BH lever installation plate, install the BH lever installation plate with the two
screws, then install the BH change shaft, and fasten with the screw.
Assembly Points
73. Pass the presser bar through the presser spring and presser bar clamp while compressing the presser
spring. Be careful that the presser spring does not pop out. After installing the presser bar, move the
presser lifter up and down and check it moves freely.
74. Set the BH lever installation plate in the presser bar clamp groove.
