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(4) Removing/installing the gear box cover
1
Procedures of disassembling/assembling
Do not open the gear box cover unless a trouble occurs.
When it is compelled to open it, take care of the following matters.
* Prepare a new gear box large cover packing (23526601).
1) Tilt the sewing machine and prepare an oil receiver under the gear box.
2) Loosen the setscrew of the pipe presser and remove it from the cover.
3) Remove the gear box setscrews and drain oil inside the gear box.
4) When the maintenance of the inside has been completed, close the gear box cover.
At this time, replace the packing with a new one. In addition, cleanly wipe oil on the connected face
of the cover and the machine bed.
Turn the setscrew once more to securely tighten after all setscrews have been tightened once.
5) When peeling off safety label 1 in the
front of machine bed, there is a rubber
plug inside. Remove the rubber plug
and fill the gear box with 190 cc of (JUKI
genuine) Defrix Oil No. 2.
(5) Disassembling/assembling the needle bar support base shaft (asm.)
Procedures of disassembling/assembling
Structure of components
Needle bar support base
shaft rear metal A
Thrust bush
Lock nut
Needle bar support
base shaft
2
1
Lock washer
Slide resistance screw
Needle bar support
base shaft (asm.)
1
3
3
4
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