Gritzner 1002 - Changing the Stitch Length Control

46
29. Changing the stitch length control
Removal:
● Disconnect the plug from the electrical outlet.
● Fold up the carrying handle.
● Turn out both arm cover retaining screws and remove arm cover.
● Turn out both stand cover retaining screws and remove stand cover.
● Loosen both face cover retaining screws and remove face cover.
● Remove the detachable work support (accessory box) by pulling it to the left.
● Take out screw 88 with washer 89 (fig. 29).
● Remove cover plate 90.
● Turn out both lock washers 91 (fig. 29a).
● Turn out Phillips screw 92 (fig. 29b).
● Remove stitch length control plate 93 with spring 94.
● Disconnect spring 95 (fig. 29a).
● Turn out both Phillips screws 96 (fig. 29b).
● Detach the connecting rods of the stitch length control from the guide pins of the slide way.
● Remove the stitch length control 97.
Refitting:
● Refit the stitch length control 97 in such a way that both connecting rods engage in the guide
pins of the slide way.
● Reinsert both Phillips screws 96 and loosely attach the stitch length control.
● Refit both lock washers 91 (fig. 29a).
● Connect spring 95.
● Refit stitch length control plate 93 with spring 94 (fig. 29b)
● Tighten Phillips screws 92 and both Phillips screws 96.
● Refit cover plate 90 (fig. 29) and tighten it with washer 89 and screw 88.
● Carry out a function check.
● Carry out an electrical safety test in accordance with VDE 0701 using testing appliance
ABB Metrawatt 5013.