−
72
−
*
Use a motor of 3/4 HP (550 W) when the sewing machine runs at 7,000 rpm or higher speed.
Use a motor of 1/2 HP (400 W) when the sewing machine runs at a speed lower than 7,000 rpm.
(Caution) If a motor of less than 400W is used, in the low tenperature area, viscosity of oil increases
and the sewing speed may not increase or the sewing machine may fail to run in some
cases.
* Part No. of motor pulley
MTKP0xxx000 (Enter the effective diameter to “xxx.”)
If the outside diameter of the motor pulley is 150 mm, the effective pulley will be 145.
.....So, the part No. will be MTKP0145000.
If the outside diameter of the motor pulley is 90 mm, the effective pulley will be 085.
.....So, the part No. will be MTKP0085000.
* Part No. of belt
MTJVM00xx00 (Enter a number that shows the belt length to “xx.”)
If the belt length is 1016 mm (40 inches), enter “40” to “xx.”
.....So, the part No. will be MTJVM004000.
If the belt length is 889 mm (35 inches), enter “35” to “xx.”
.....So, the part No. will be MTJVM003500.
(5) Kinds of motor pulleys, belts and frame support plate bolts
1) Motor pulleys and belts
MO-6 00S(R)
MO-6900G(J)
Sewing speed of
sewing machine
(rpm)
8500
8000
7500
7000
6500
6000
5500
5000
4500
4000
50 Hz
160 (155)
150 (145)
140 (135)
130 (125)
120 (115)
110 (105)
100 (95)
90 (85)
85 (80)
75 (70)
Semi-sunken
type mm (inch)
1016 (40)
1016 (40)
965 (38)
965 (38)
965 (38)
914 (36)
914 (36)
889 (35)
889 (35)
864 (34)
Fully-sunken
type mm (inch)
914 (36)
864 (34)
864 (34)
864 (34)
813 (32)
813 (32)
813 (32)
762 (30)
762 (30)
762 (30)
60 Hz
135 (130)
125 (120)
120 (115)
110 (105)
100 (95)
95 (90)
85 (80)
80 (75)
70 (65)
60 (55)
Semi-sunken
type mm (inch)
965 (38)
965 (38)
965 (38)
914 (36)
914 (36)
889 (35)
889 (35)
864 (34)
864 (34)
864 (34)
Fully-sunken
type mm (inch)
864 (34)
813 (32)
813 (32)
813 (32)
813 (32)
762 (30)
762 (30)
762 (30)
762 (30)
737 (29)
V-belt
V-belt
Sewing speed of
sewing machine
(rpm)
6000
5500
5000
4500
4000
50 Hz
125 (120)
115 (110)
105 (100)
95 (90)
85 (80)
Semi-sunken
type mm (inch)
965 (38)
940 (37)
914 (36)
914 (36)
889 (35)
Fully-sunken
type mm (inch)
864 (34)
838 (33)
838 (33)
813 (32)
787 (31)
60 Hz
105 (100)
95 (90)
85 (80)
80 (75)
70 (65)
Semi-sunken
type mm (inch)
914 (36)
914 (36)
889 (35)
889 (35)
889 (35)
Fully-sunken
type mm (inch)
838 (33)
813 (32)
787 (31)
787 (31)
787 (31)
V-belt
V-belt
Outside diameter
of motor pulley
mm (Effective
diameter mm)
Outside diameter
of motor pulley
mm (Effective
diameter mm)
Outside diameter
of motor pulley
mm (Effective
diameter mm)
Outside diameter
of motor pulley
mm (Effective
diameter mm)
Summary of Contents for MO-6000S series
Page 78: ......
