1. ベルトの掛け方 ...............................................................................................................................................3

2. 糸立装置の取り付け .......................................................................................................................................4

3. ベルトカバー・糸巻台・下糸巻装置の取り付け .........................................................................................5

4. 巻き具の取り付け ...........................................................................................................................................6

5. グリスの塗布 ...................................................................................................................................................7

# . ミシンの据え付け（DLN-6390-7） ................................................................. 8

1. SC-921 の取り付け・設定 ..........................................................................................................................8

2. コードの配線 ...................................................................................................................................................9

3. ひざスイッチの取り付け ............................................................................................................................10

4. 空圧関係の配管及び電気関係の配線 .........................................................................................................11

$ . ミシンの据え付け（DLN-6390） ...................................................................12

1. モータプーリ・ベルトの選び方 .................................................................................................................12

2. モータの取り付け .........................................................................................................................................13

3. 巻き具開閉機構のセットアップ .................................................................................................................14

4. 押え上昇機構のセットアップ .....................................................................................................................15

5. 押え上げと巻き具開閉の同時操作 .............................................................................................................16

% . 給油・排油 ....................................................................................................17

1. 給油 ...............................................................................................................................................................17

2. 排油 ...............................................................................................................................................................18

3. 油量調整........................................................................................................................................................19

^ . ミシンの使い方 ..............................................................................................21

1. 針の取り付け方 ............................................................................................................................................21

2. ボビンの入れ方 ............................................................................................................................................21

3. 上糸の通し方 ................................................................................................................................................22

4. 縫い目長さの調節 ........................................................................................................................................23

5. 下糸の巻き方 ................................................................................................................................................24

6. 糸調子 ...........................................................................................................................................................25

7. 糸取りばね ....................................................................................................................................................25

8. 天びん糸取り量の調整 ................................................................................................................................25

& . ミシンの調整 .................................................................................................26

1. 針棒高さの調整 ............................................................................................................................................26

2. 釜の取り付け位置 ........................................................................................................................................27

3. 針停止位置の調整 ........................................................................................................................................28

4. ペダル関係の説明と調整 ............................................................................................................................29

5. ワイパー調整 ................................................................................................................................................30

6. 押え上げ........................................................................................................................................................31

7. 押え圧（上ローラー）、押え高さ（上ローラー）の調整 ........................................................................31

8. 押え圧（押え ( 組 )）、押え高さ（押え ( 組 )）の調整 ...........................................................................32

* . 縫いのトラブルと対応 .....................................................................................33

( . 糸切り関係 ....................................................................................................35

1. 動メス後退位置の確認と修正方法 .............................................................................................................35

2. 糸切りカムのタイミング確認 .....................................................................................................................36

3. 固定メス........................................................................................................................................................37

) . オプション関係のセットアップ ........................................................................38

1. 針冷却装置 ....................................................................................................................................................38

_ . SC-921 の設定 ............................................................................................43

1. 自動押え上げ機能選択方法 .........................................................................................................................43

vii