JUKI MF-7900 Series Engineer's Manual page 185

1. Needle bar components, Presser components
B
B
B
B
B
B
(Caution) 1. There is a grease groove inside the needle bar upper bushing (No. 22) and the needle
bar lower bushing (No. 21). When the needle bar (No. 24) is pulled out, fill this groove
section with JUKI Grease A.
2. There is a grease groove inside the metal of needle bar crank rod asm. (No. 4). When the
needle bar connection (No. 6) is pulled out, fill this groove section with JUKI Grease B.
3. There is a lead groove inside the presser lifting shaft asm. (No. 17). When the presser
lifting shaft asm. is pulled out, fill this lead groove section with JUKI Grease B.
B
A
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B
B
B
B