−
52
−
(3) Replacing the timing belt
(4) Removing/installing the gear box cover
9
!1
1
*
The timing belt (22505705) of the highest quality is used, and it is not necessary to replace it
unless a special trouble occurs.
1) Perform removing/installing of the motor in
accordance with the steps of the item (2)
Replacing the motor.
2) Tilt the sewing machine, remove back-
magnet setscrews
9
and remove back-
magnet
!0
.
3) Pressing timing belt
!1
in the right-hand
direction, turn the timing belt to the front by
fingers, then the timing belt can be
removed.
4) Replace the timing belt with a new one and
install again the the reverse order.
Procedures of disassembling/assembling
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.
* Start the work after preparing a new gear box 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) Remove stop plug
1
in the front of the machine bed and fill 200 cc of JUKI Defrix Oil No. 2.
Back-magnet
!0
Rubber
cushion
Plunger
