12
(2) Lubricating the oil fan
A. Fill the lubricant up to the
“
HIGH
”
mark. (See
Fig.5.)
B. The lubricant must be SUNSTAR
’
s oil provided
exclusively for industrial sewing machines or
SHELL
’
s Tellus C10.
C. If the oil in use is down to the
“
LOW
”
mark, fill in
to
“
HIGH
”
immediately.
D. Once every two weeks is deemed the appropriate
interval for oil refills.
5) Belt Tension Adjustment
Sufficient loosening of the fixed nuts
①
,
②
after motor
③
installation would create tension to the belt
④
. Tighten the
fixed nut
①
first and then tighten the fixed nut
②
to an
unmovable position. (See Fig. 6)
[Fig.5]
[Fig.6]
6) Program Unit
(1) Installing automatic knee-lifting solenoid (in
unit)
A. Use four fixing screws
③
to attach the bracket
②
onto
the program unit
①
.
B. Fasten the bracket
②
onto the machine body, using
two fixing bolts
④
and three clamp screws in the
back lid of the machine. (See Fig. 7)
[Fig.7]
Keystone Sewing Machine Company, Inc.
