−
39
−
Adjustment Procedures
Results of Improper Adjustment
1. Disassembling
1) Remove top cover
7
and side cover
8
.
2) If packing
9
of the top cover has been adhered on the frame,
also remove packing
9
.
3) Remove needle front plug
!1
.
4) Loosen setscrew
!0
of needle lubricating pin
4
and remove
needle lubricating pin
4
.
5) Remove needle bar upper bushing cap screw
!2
and loosen
setscrew
!3
in the needle drive pin.
6) Fitting needle drive pin
2
in the hole on the frame side, thrust
the pin until it can be drawn out.
2. Adjustment
1) Bring needle bar
1
to the lower dead point.
2) Adjust oil wick
3
in needle drive pin
2
so that it should be
flush with the chamfered plane of the pin.
(If oil wick
3
sinks inside the chamfered plane as the concave,
oil will not be fed smoothly.)
3) Install needle lubricating pin
4
in place with its oil inlet
6
faced
above.
4) Adjust with setscrew
!0
so that the clearance between needle
lubricating pin
4
and needle drive connecting link
5
is 0.1
mm. (It is convenient to use a 0.1 mm clearance gauge or the
like.)
™
If the oil wick is installed in the
needle drive connecting link pin
inside the pin as the concave,
oil will not lubricated properly
resulting in seizure.
™
I f t h e c l e a r a n c e p r o v i d e d
between the needle lubricating
p i n a n d t h e n e e d l e d r i v e
connecting link is too small, the
related components will come in
contact with each other.
™
I f t h e c l e a r a n c e p r o v i d e d
between the needle lubricating
p i n a n d t h e n e e d l e d r i v e
connecting link is too large, oil
wll not be fed properly resulting
in seizure.
™
If the oil inlet does not face
upward, oil will not be fed
resulting in seizure.
Summary of Contents for MO-6000S series
Page 78: ......
