Brother BAS-761 Service Manual download pdf (Page 68)

5. ADJUSTMENT

BAS-7610

5-28

5-24. Adjusting the AC servo motor backlash

Release air compression. Turn off the power.

Remove the needle plates, the rear covers and the right side cover while making this adjustment.

The load (Power OFF) : Refer to the illustration. Adjust → Loosen the four bolts of the AC servo motor

5-25. Checking and adjusting the home position

* Compared with the BAS-750/751, Y home position is located 5 mm closer toward you. BAS-760 is the same position.

Remove the rear covers and the right side cover while making this adjustment.

1. Turn off the power. Install and lock the sewing clamp. Attach the programmer.

Retractable-type sewing clamp → Remove parts : ex.--- Refer to the illustration. (Presser of the machine touch the

parts of the sewing clamp.)

2. Turn on the power. Press the reset switch of the sewing clamp. The sewing clamp will move left and then right, and

stop at the stand-by position. (Checking of the home position) Spread the cloth under the sewing clamp.

3. Press “P” to obtain programming state.

4. Use the direction keys to locate the needle in the center of the home position hole of the sewing clamp. The

programmer display should show X-direction=271.60 mm, Y-direction=0 mm.

* When the display does not suit, the following page “Adjusting the location of X (Y) home position sensor” is adjusted.

Less than 98N

Less than 49N

1394S

1395S

11 mm

Home position hole

1396S

Theoretical value

It is displayed as

272.80 mm.

720.07 mm

448.47 mm

Home position

Stand-by position

Needle center

1397S

271.60 mm

Home position hole

1 2 ... 63 64 65 66 67 68 69 70 71 72 73 ... 178 179

No comments

Brother BAS-761 Service Manual Page 68