Brother rh-918a manual Replacing the knife, Adjusting the cutting pressure

Models: rh-918a

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9-12. Replacing the knife

9. STANDARD ADJUSTMENTS

9-12. Replacing the knife

(L1 - L4)

3091Q

3092Q

1.After checking that there is no clearance between the stopper plate (1) and the knife (2), loosen the bolt (3) and then remove the knife (2).

2.Insert the new knife (2) into the stopper plate (1), and then tighten it with the bolt (3).

Note: For L1 - L4 specifications, secure the stopper plate (1) in the position closest to you (the position

indicated by the dotted lines).

*When replacing the knife (2), make sure that the knife number matches the number for the eyelet shape. Replace the knife and hammer as a set.

If knives with different numbers are used on the same hammer, accurate cutting will not be possible, and damage to the knife may result.

9-13. Adjusting the cutting pressure

Adjust the cutting pressure to the minimum pressure that still allows the material to be cut.

*If the knife cutting length is 20 mm, sufficient cutting performance can be obtained with an air pressure of 0.2 MPa. To adjust the cutting pressure, adjust the air pressure of the knife pressure adjustment regulator (1) which is mounted underneath the work table.

*If the cutting pressure is increased to more than is necessary, it will cause the hammer to become worn or the knife to become damaged.

*If the material cannot be cut cleanly, do not increase the cutting pressure over the maximum limit. Check the contact between the knife and the hammer, while referring to "9-11. Adjusting the contact between the knife and the hammer".

3093Q

63

RH-981A

Page 70
Image 70
Brother rh-918a manual Replacing the knife, Adjusting the cutting pressure