Adjusting The Work Clamp Lift Amount - Brother LK3-B434E MKII Instruction Manual

10-8. Adjusting the work clamp lift amount

The maximum work clamp lift amount is 17 mm (25
mm for pneumatic, 17 mm for machines with inner
clamping device) from the top of the needle plate.
The lift amount is adjusted as shown in the table at
the time of shipment.
[Solenoid type]
17 mm max.
To adjust the work clamp lift amount, loosen the bolt q and move the presser arm lever plate w up or down.
* If movement is sluggish when the work clamp e is being raised and lowered, it may not be possible to
increase the work clamp e lift amount.
Apply grease to the bottom of the presser plate r to the top of the presser arm lever plate w and to the
sliding part of the work clamp e (grease is already applied at the time of shipment), and check that the
movement becomes easier.
* If the work clamp e cannot be raised or lowered, error code "E-61" or "E-63" will be displayed.
* Check that there is a gap between the presser arm lever plate w and the presser plate r when the presser
foot is lowered.
[Pneumatic type]
25 mm max.
(17 mm max. for machines
with inner clamping device)
1. Raise the work clamp q and loosen the screws w.
2. Adjust the work clamp lift by moving the presser levers e and r up and down and then tighten the screws
w.
* If movement is sluggish when the work clamp q is being raised and lowered, it may not be possible to
increase the work clamp q lift amount.
Apply grease to the sliding part of the work clamp q (grease is already applied at the time of shipment),
and check that the movement becomes easier.
r
e
q
LK3-B434E Mark II
10. STANDARD ADJUSTMENTS
Uses
Lift amount
e
Medium Heavy
materials materials
+1 +1
10 mm 14 mm
0 0
r
w
q
w
40