Brother rh-918a manual Auxiliary clamp arm -02, -52 specifications

9. STANDARD ADJUSTMENTS

9-20. Auxiliary clamp arm (-02, -52 specifications)

Trimming of the lower thread and gimp is carried out when the work clamps rise. The auxiliary clamp arm

(1) endures that the material does not move during thread trimming, in order to maintain a stable thread length after trimming.

3107Q

9-21. Adjusting the cloth feeding speed (-52 specifications)

3108Q

Becomes slower

Becomes faster

Becomes	Becomes faster
slower

Maximum height (approx. 11.6 mm)

Turn the A-side needle valve (1) or B-side needle valve (2) to adjust the cloth feeding speed.

Note: The cloth feeding speed is adjusted to an appropriate speed at the time of shipment from the factory, and should not be changed unnecessarily.

At the time of shipment

A- side needle valve

At a height of approximately 9.6 mm from the surface of the valve body (turned 6 full rotations from the maximum height)

B- side needle valve

At a height of approximately 9.1 mm from the surface of the valve body (turned 7 full rotations from the maximum height)

Approx.	Approx.
9.6 mm	9.1 mm

3109Q

RH-981A

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