7
20
°
~30
°
A
B
C
D
E
F
G
10~12mm
3
9
10
8
E
D
A
B
C
D
Oil level mark
3.1.7 Connecting the clutch lever to the pedal (Fig.7)
a. The optimum tilt angle of pedal with floor is 20~30
degreee.
b. Adjust the clutch of the motor so that clutch lever
C and draw bar B run in line.
c. The machine balance wheel should rotate counter
clockwise for normal sewing when view from the
opposite side of balance wheel G. The motor is rotated
in the same direction. The rotation canbe reversed by
reversing the plug of motor (turn over 180 deg.).
d. Adjust the tension of V-belt F by moving the motor
vertically. The proper tension of V-belt is a slack of
10-12mm when the belt is depressed at the belt pan by
finger.
3.1.8 Installing the bobbin winder (Fig.8)
Align the pulley B of bobbin winder with outside of
belt C and should be kept a proper clearance between
them, so that pulley B could be contacted with belt
after the stop latch thumb lever A depressed. Thereby
belt drives the pulley B while machine running. After
check bobbin winder is in parallel with belt slit E of
table, fastened by two wood screws D.
3.2 Preparation
3.2.1 Cleaning the machine
Before delivery, the machine parts are coated with
rust prevertive grease, which may be hardened and
contaminated by dust during storage and shipment.
The grease must be removed by clean cloth with
gasoline.
3.2.2 Examination
Though every machine is confirmed by strict
inspection and test before delivery, the machine parts
may be loosed or deformed after long distance
transportation after cleaning the machine. Turn the
balance wheel to see if there is running obstruction,
parts collision, uneven ersistance or abnormal noise.
If these exist, adjustment must be made accordingly
before run.
3.2.3 Precaution
a. Oiling (Fig.9)
Oil amount should be filled according to the marks in
the oil reservoir. Mark H refers to the highest of oil
amount; L refers to the lowest. Note that the oil level
should not lower than Mark L. Otherwise, the
machine parts can not be fed with oil and will cause
overheat and collision.
Be sure to use machine oil HA-8 or HJ-7.
