Brother BAS-311E Owner's Manual

Page of 150
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BAS-311E.311EL.326E.326EL
Chapter 4. Adjustments
6. Adjusting the two-step work clamp lift amount
¡The maximum work clamp lift amount is 25 
±
 1 mm (for solenoid type) or 30 
±
 1 mm (for pneumatic type) from the top
of the needle plate.
¡The lift amount for each model is adjusted as shown in the table at the time of shipment.
6-1. Solenoid type
1. Turn the power switch OFF.
2. Loosen the bolts 
w of work clamp arm lever F q.
3. Place a scale against the work clamp 
e, and then move work clamp arm lever F q up or down to adjust so that the
amount of lift above the top of the needle plate is 20 mm.
4. After adjusting the lift amount (20 mm), tighten the bolts 
w of work clamp arm lever F q.
                    
type
Solenoid type
Pneumatic type
Lift amount
20mm
20mm
e
w
q
20mm