Brother DB2-B737 Mark III User Manual

CONTENTS
INHALT
NAMFS OF MAJOR PARTS ................................. ..
HAUPTTEILE ................................................................... .
MACHINE
SPECIFICACIONS ................................. 2
TECHNISCHE DATEN................................................. 2
WORK TABLE AND MOTOR ............................... 3
NAHTISCH UND MOTOR ....................................... 3
[I] Work Table ........................................................................ 3
rn Nahtisch .............................................................................. 3
[II Motor .................................................................................. 4
[!] Motor .................................................................................. 4
INSTALLATION ............................................................... 5
MONTAGE
.......................................................................... 5
[I] Installing the machine head ......................................... 5
[I] Montage des Maschinenoberteils ................................ 5
[II Installing the knee lifter assembly .............................. 7 [!] Montage der Kniehebel .................................................. 7
00 Adjusting the knee lifter ................................................ 7
00 Einstellen des Kniehebels .............................................. 7
1!1 Installing the belt ............................................................. 9
1!1 Riemenmontage ............................................................... 9
[!] Ground wire connections .............................................. 9
[!] AnschluB des Erdungskabels ........................................ 9
[!] Installing the bobbin winder ......................................... 10 [!] Montage des Spulers ..................................................... 10
[lJ Installing the belt cover ................................................. 11 [lJ Montage des Riemenschutzes ..................................... 11
[I] Installing the·cotton stand ............................................ 14 [I] Montage des Spulentragers .......................................... 14
1!1 Lubrication ......................................................................... 15 1!1 Schmierung ....................................................................... 15
1!]1 Checking the machine pulley rotating direction ..... 16 1!]1 Kontrolle der Nahmaschinen-
PREPARATION BEFORE SEWING .................... 17
Riemenscheibendrehrichtung ........................................ 16
[I] Removing the bobbin case ........................................... 17
VORBEREITUNGEN ZUM NAHEN ................... 17
[II Winding the lower thread ............................................. 18
[I] Herausnehmen der Spulenkapsel ................................ 17
00 Threading the lower thread .......................................... 19
[II Aufwickeln des Unterfadens ......................................... 18
1!1 Installing the needle ........................................................ 20
00 Einfadeln des Unterfadens ............................................ 19
[!] Threading the upper thread ......................................... 21
1!1 Einsetzen der Nadel ........................................................ 20
[!] Adjusting the stitch length ............................................ 22
00 Einfadeln des Oberfadens ............................................. 21
[lJ Thread wiper (-400, -900) ............................................ 22
[!] Einstellen der Stichlange ............................................... 22
[I] Automatic presser lifter (-900) .................................... 23
[lJ Fadenwischer (-400, -900) ............................................ 22
SEWING ................................................................................ 24
[I] Automatische Anhebevorrichtung (-900) .................. 23
NAHEN .................................................................................. 24
THREAD TENSION ....................................................... 26
[I] Adjusting the thread tension ........................................ 26
FADENSPANNUNG ....................................................... 26
[II Adjusting the presser foot pressure .......................... 27
[I] Einstellen der Fadenspannung ..................................... 26
[II Einstellen des StoffdruckerfuBdrucks ......................... 27
STANDARD ADJUSTMENTS .................................. 28
[I] Adjusting the presser foot height ............................... 29
STANDARDEINSTELLUNGEN ............................... 28
[II Adjusting the feed dog height and angle ................ 30
[I] Einstellen der StoffdruckerfuBhohe ............................ 29
00 Adjusting the needle bar height ................................. 32
1!1 Adjusting the needle and rotary hook timing ......... 33
[!] Adjusting the thread tension spring .......................... 34
[!] Synchronizer adjustment ............................................... 36
[lJ Fixed knife and movable knife replacement ............ 38
[I] Adjusting the upper shaft and rotary hook
lubrication amount .......................................................... 39
[II Einstellen der Hohe und der Neigung des
Transporteurs ....................................................................
30
00 Einstellen der Nadelstangenhohe ................................ 32
1!1 Einstellen der Nadei-Greifersynchronisierung .......... 33
[I) Einstellen der Fadenspannungsfeder .......................... 34
[!] Einstellen der Synchronisators ..................................... 36
[lJ Ersetzen des festen und beweglichen Messers ...... 38
CLEANING .......................................................................... 40
III Einstellen der Schmierung der oberen Welle und
des Drehgreifers ...............................................................
39
TROUBLESHOOTING .................................................. 44
REINIGUNG ....................................................................... 40
FEHLERSUCHE ................................................................ 47
From the library of: Superior Sewing Machine & Supply LLC

Brother DB2-B737 Mark III Specifications

General

Stitch Type	Lockstitch
Max Stitch Length	5 mm
Needle Bar Stroke	30.7 mm
Presser Foot Lift	By hand: 5.5 mm, By knee: 13 mm
Needle	DB x 1