Dürkopp Adler 884-xxx-M series Service Instructions Manual page 18

16
Wheel feed (A) elevation change
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Unscrew the screws (2) and dismantle the throat plate (1).
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Unscrew the screws (9).
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Turn the pin (5) with its upper side down.
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Screw the screws (9) on.
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Mount the throat plate (1) and screw the screws (2).
Wheel feed replacement
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Unscrew the screws (2) and dismantle the throat plate (1).
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Unscrew the screws (9).
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Slide the wheel feed (4) with the pin (5) downwards.
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Replace the wheel feed (4), slide the pin (5) inside and then
slide them into the throat plate (1).
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Fix the pin (5) with the screws (9).
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Adjust the backlash of the teeth (6) with a setting screw (7) by
means of a hexagonal key 2.5 mm (8).
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Tightening of the screw (7) reduces the backlash, and vice
versa.
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Turn the hand wheel until the wheel feed turns by a whole
revolution. When turning, check whether the wheel feed has a dead
travel in all positions, which should be as small as possible.