Porter International Box Spring Machine BS401-500

Set bracket 6 horizontal and set guide 7 as 0.5 mm above from the top of bracket 6

Loosen two screws for takeup 8 and turn handwheel until looper is at extreme right position

Set takeup 8 so that its flat portion is at a 10 degrees angle to guide 7

Tighten the two screws loosened

Loosen screws holding eyelets 9 and move eyelets 9 until the coiled ends line up with engraved line A on bracket, then tighten screws

Sign off on the looper thread control adjustment

A). This eccentric pin adjusts the position of the Walking Foot front to rear. This enables you to align the Walking Foot teeth with the lower feed dog teeth.

B). This screw adjusts the Walking Foot movement in relation to the presser foot. The higher the bracket, the faster the presser foot will meet the needle plate, causing the Walking Foot to raise off the work faster. Lowering the bracket will cause the Walking Foot to raise off the work more slowly.

C). This eccentric pin primarily adjusts the position of the presser foot front to rear.

D). This shaft adjusts the position of the presser foot front to rear. It is used to adjust the clearance between the presser foot and the Walking Foot.

E). This screw holds shaft 'D'. Loosen it to free the shaft.

Any one of the above adjust- ments will slightly change one or more of the other adjustments. Take this into consideration when making any one adjustment. Before running the machine, turn it over by hand to check all clearances.;

Warning: This procedure requires trained personnel with PPE!

Feeds are at their highest position

Screws 6 and cover plate 7 removed

Screw 9 removed and screw 10 turned for proper tilt

Screw 8 tightened and play in feed bars eliminated

Cover plate 7 and screws 6 replaced

Sign off on the feed tilt adjustment

A. Pressure 1. Tighten the thumb screw at the top of the pressure rod nearly as tightly as possible.

2. The top feed should be exerting maxi- mum or nearly maximum pressure.

The top feed teeth must be aligned to mesh exactly with the teeth of the bottom feed dog. To align the teeth:

1. Loosen the allen screw at the rear of the top feed holder.

2. Turn the eccentric pin with a screw driver to adjust the position of the top feed arm so that the top feed and bottom feed dog teeth mesh.

The lift must be adjusted so that the movement of the top feed is synchronized with the movement of the bottom feed dog.To adjust lift:

A. Loosen the two Allen screws on the front of the lifter. Rotate the lifter to either advance or retard the top feed movement. Make sure that you do not shift the lifter sideways.;

Turn handwheel until needle is at its highest position

Check that the clearance between the point of needle 1 and the top of needle plate is correct

Reset needle bar to correct clearance at its highest position

Turn handwheel and observe that needle descends in the center of the needle hole in needle plate

Sign off on the needle bar height adjustment