Duerkopp Adler 550-12-23 Service Instructions Manual page 18

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2.7
Left Lower Shaft Bearing
4
3
Gauge 1
6
20
2
1
The clearance from the middle of the needle to the beginning of the
left lower shaft bearing 6 should be 41,8 mm.
Caution Risk of Injury!
Before adjusting turn the main switch off.
Remove the needle plate, needle guard and hook with hook carrier.
Screw out screw 4 and drain the oil in the hook housing. (For this
set the machine upright)
Screw off the grease cap 2 and oil baffle 1.
Loosen the clamping screw 3 and all elements screwed onto the
lower shaft (7, 8, 9) and carefully pull off the hook housing together
with the lower shaft.
Screw gauge 1 onto the needle plate support.
Loosen screws 10, press the lower shaft bearing 6 onto the gauge
and tighten the screws again.
Mount the hook drive housing and lower shaft and adjust as per
the setting information in these service instructions.
Fill the hook drive housing with Esso SP-NK 10 oil. Check with the
oil dip stick.
7
9
8
10

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550-12-24550-12-26

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