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(36) Adjusting the wiper solenoid (WB type only)
Standard Adjustment
(37) Position of the wiper
1) WB type
Standard Adjustment
C
™ When the wiper solenoid 3 is OFF (in the normal state), the pin A 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
A
Comes in contact
during operation
3
™ 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
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