Operating instructions

ManualsBrandsDuerkopp Adler ManualsBusiness equipment579

26.3 Position of the Looper Thread and Gimp Clamp

Caution Risk of Injury!

Set the position of the looper thread and gimp clamp only in the “Safe

Stop” position or with the machine turned off.

Rule and Control

The looper thread and the gimp are clenched by the long trimmer

together under the clamping plate. The looper thread and the gimp

must be held so firmly that a secure and tightly pulled seam beginning

is assured.

It must be possible that the gimp thread be pulled unhindered

underneath clamping spring 5. Thereby it should only be very slightly

clamped.

Before beginning the cutting sequence at the fixed knife, the looper

thread must be pulled between lower clamping spring 7 and clamping

piece 3.

The gimp thread must be pulled between upper clamping spring 5 and

clamping piece 3.

The thread divider 1 must divide the looper thread and gimp thread so

that both threads are individually clamped in the thread grippers

(gimp-upper thread gripper, looper thread-lower thread gripper).

For the secure insertion of the looper thread before the cutting, the

clamping spring 7 is opened by trigger plate 2 via pin 5.

The opening width is dependent on the thickness of the looper thread

used.

The gripper must, at the least, be opened so wide that the looper

thread is pulled securely behind pin 8 and is not pulled out of the

thread gripper after thread trimming.

When the thread catcher head 1 lies just at the knife, the trigger plate 2

must have opened the thread gripper 7.

With too great an opening width, the looper thread can jump back after

the trimming.

Correction

Opening width

–

Adjust the height of the trigger plate 2 so that the clamping spring

for the looper thread is easily opened.

Timing

–

Loosen screws 9 and 10.

–

Turn trigger plate 2 so that the thread gripper 7 is opened when the

catcher head lies just at the knife.

–

Tighten screws 9 and 10.

Clamping force

–

Set the pressure of the clamping spring 7 through adjustment so

that the looper thread is held slightly clamped after trimming and

doesn’t jump back.