Duerkopp Adler 745-22 User Manual

Contents Page:
Part 3: Service Instructions Cl. 745-22; -23; -24
1. General
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Transport Carriage
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Rollers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Forward End Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Rear End Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4 Timing Belt Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5 Changing the Timing Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3. Folder
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Stroke Movement of the Folder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Aligning the Folder to the Center of the Pocket Opening . . . . . . . . . . . . . . . . . . . . . 13
3.3 Position of the Folder to the Needles and the Center Knife . . . . . . . . . . . . . . . . . . . . 14
3.4 Guide Plates on the Folder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4. Clearance of the Transport Clamps to the Folder sole
. . . . . . . . . . . . . . . . . . . . . 16
4.1 Manual Adjustment of the Transport Clamps (745-22) . . . . . . . . . . . . . . . . . . . . . . . 16
4.2 Pneumatic Quick Clamp Adjustment (745-23) . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5. Marker Lights
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6. Knife Brackets for Cutting the Corners
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1 Adjusting the Position of the Corner Incisions . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2 Adjusting the Knife Brackets for Bias Corner Incisions (745-24) . . . . . . . . . . . . . . . . . 28
6.3 Changing the Corner Knives (745-22 and 745-23) . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.4 Changing the Corner Knives (745-24) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7. Adjusting the Piping Reverser (745-23)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8. Cloth Slider Plate and Support Plate
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9. Stroke Height of the Transport Clamps
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.1 Clearance of the flap clamps to the slider plate . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
10. Synchronizer
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
11. Machine Head
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
11.1 Crank Pin on the Arm Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
11.2 Needle Bar Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
11.2.1 Slewing Movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
11.2.2 Setting the Needle Bar Link to the Needle Bars . . . . . . . . . . . . . . . . . . . . . . . . . . 42
11.2.3 Turning the Needle Bars on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
11.2.4 Assembling and Removing the Needle Bar Link . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Duerkopp Adler 745-22 Specifications

General

Brand	Duerkopp Adler
Model	745-22
Category	Sewing Machine
Language	English

Summary

Transport Carriage

Forward End Position

Setting the forward limit for the transport carriage.

Rear End Position

Setting the rear limit for the transport carriage.

Timing Belt Tension

Changing the Timing Belt

Folder

Stroke Movement of the Folder

Aligning the Folder to the Center of the Pocket Opening

Aligning the folder to the central pocket line.

Position of the Folder to the Needles and the Center Knife

Clearance of the Transport Clamps to the Folder Sole

Manual Adjustment of the Transport Clamps (745-22)

Pneumatic Quick Clamp Adjustment (745-23)

Knife Brackets for the Cutting of the Corners

Adjusting the Position of the Corner Incisions

Setting the precise cutting points for corner incisions.

Adjusting the Knife Brackets for Bias Corner Incisions (745-24)

Changing the Corner Knives (745-22 and 745-23)

Changing the Corner Knives (745-24)

Adjusting the Piping Reverser (745-23)

Stroke Height of the Transport Clamps

Clearance of the flap clamps to the slider plate

Synchronizer

Machine Head

Crank Pin on the Arm Shaft

Adjusting the eccentric crank pin for needle stroke.

Needle Bar Link

Adjusting the needle bar link mechanism.

Hook Shaft Height

Setting the correct height of the hook shaft.

Tooth Play of the Hook Drive

Adjusting the play in the hook drive mechanism.

Looping Stroke

Setting the needle bar's looping stroke.

Height of the Needle Holders

Adjusting the vertical position of needle holders.

Clearance of the Hook Points to the Needles

Setting clearance between hook and needles.

Needle Guard

Adjusting the needle guard for needle protection.

Changing the Hook

Bobbin Case Holding Wire

Aligning the Light Barriers of the Remaining Thread Monitor

Center Knife

Adjusting the position and movement of the center knife.

Thread Controller Springs

Trimming and Clamping Device for the Needle Threads

Trimming and Clamping Device for the Underthreads

Thread Puller for the Needle Threads

Changing the Needle Holder