Siruba 700Q, Instruction Book

Page: 32 / 64

1.Replace the upper trimmer
：
(1)Loosen the screw and move the lower
trimmer holder to the left. Then, tighten
the screw a little.
(2)Remove the screw and put the new
trimmer. Then, tighten the screw a little.
(3)Turn the pulley to move the upper trimmer
to the lower dead point. Adjust the height
of the upper trimmer so that the upper
trimmer can cross the lower trimmer
about 0.5 ~ 1.0 mm. After that, tighten the
screw .
(4)Loosen the screw and return the lower
trimmer to its original position. Test if the
upper and the lower trimmer can cut the
thread exactly, and then tighten the screw
.
2.Replace the lower trimmer
：
(1)Loosen the screw and move the lower
trimmer holder to the left. Then,
tighten the screw a little.
(2)Loosen the screw . Take off the trimmer
and replace a new one.
(3)Adjust the edge of the lower trimmer to
be alight with the surface of the needle
plate. Then, tighten the screw .
(4)Loosen the screw to return the lower
trimmer holder to its original position and
test if the upper and the lower trimmer
can cut the thread exactly. Then, tighten
the screw .(Fig 27)
1.
更換上切刀：
(
1
)放鬆螺絲 將下刀座 向左邊推，輕
鎖螺絲 。
(
2
)取下螺絲 ，換上新刀片後，輕輕鎖
上螺絲 。
(
3)
轉動手輪使上刀移至下死點，調整上
刀高低使上刀與下刀相交約
0.5 ~ 1.0
mm
，鎖緊螺絲。
(
4
)放鬆螺絲 ，使下刀座還原位置，並
試驗上下刀能剪斷車縫線，鎖緊螺絲
。
2.
更換下切刀：
(
1
)放鬆螺絲 將下刀座 向左邊推，輕
鎖螺絲 。
(
2
)放鬆螺絲 ，取下舊刀換上新刀。
(
3
)調整下刀之刀口與針板面平齊後，鎖
緊螺絲 。
(
4.)
放鬆螺絲 ，使下刀座還原位置，並
試驗上下刀能確實剪斷車縫線，鎖緊
螺絲 。(圖
27)
圖
17/Fig. 17
-26-
更換切刀
REPLACE THE TRIMMERS