−
44
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(37) Adjusting the wiper solenoid
Standard Adjustment
(38) Position of the wiper
Standard Adjustment
C
™
When the wiper solenoid is OFF (in the normal state), the pin should be lightly fitted onto the
leftmost end of the slot while providing no clearance between them. (State
A
)
Confirm that the pin comes in contact with the rightmost end of the slot at position
C
when the
wiper solenoid is actuated (when it is pressed in direction
B
).
Wiper base
Light contact
Pin
A
Comes in contact
during operation
Wiper solenoid
™
When the wiper is in operation, it should not come in contact with the auxiliary thread take-up
lever.
™
When needle stops in its upper stop position, a clearance of approximately 2 mm should be provided
between the needle tip and the wiper.
™
When the wiper is operated after the presser foot has been raised by operating the presser bar
lifting lever, it should not come in contact with the presser foot.
™
When the presser foot is raised as high as 10 mm by operating the knee-lifter, the wiper should not
come in contact with the presser foot. (If the wiper comes in light contact with the presser foot, no
problem will result.)
10 mm
(knee-lifter)
2 mm
5.5 mm
(presser bar lifting lever)
Marker dot on
machine arm
Needle
White
marker dot
Upper stop position
1
2
B
1
