How To Adjust The Timing Belt Tension; How To Adjust He Knife Pressure - JUKI PS-800-12080 Instruction Manual

6-2-3 How to adjust the timing belt tension

❶
Motor shaft
❶

6-2-4 How to adjust he knife pressure

6-2-4-2. Adjusting the direction of installation of the moving knife
Turn ON the power and air to the sewing machine. Reset the origin.
Shift setscrew ❸ of the moving knife toward the far side of the sewing machine. Check to make sure that the
moving knife is in parallel to the end face of the unit by observing the scale marks of scale ❷ .
If the moving knife is not in parallel with the end face of the unit, adjust the parallelism between them by loos-
ening clamp screws ❶ .
❶
Thrust: 500 g
❶
6-2-4-1. Adjusting the mounting position of the moving
knife
Install the moving knife vertically while shifting it toward the
blade portion (in the direction of the arrow) so as to prevent the
blade portion of the moving knife from coming in contact with
the knife pressure adjustment screw of the counter knife.
* Note
*Note: Do not allow the moving knife to interfere with the screw.
❶
– 79 –
Measure the belt tension
with a thrust meter and a
pair of vernier calipers. If
the belt tension falls out of
the specification, loosen
motor fixation screws ❶
(four pieces) and adjust
the position of the motor
appropriately.
❸
❷
Parallelism adjustment