Installing The Needle Plate; Adjusting The Needle Plate (Figure 1); Replacing The Needle Slide Plate (Figure 3) - Global BM 345 Mechanic's Instructions

2.6.2

Installing the needle plate

Install the needle plate in the reverse order.
The needle plate opening must lie centrally relative to the presser and the
needle plate must lie horizontally.
Install in the reverse order. Ensure that the needle plate opening lies centrally
relative to the presser and that the needle plate lies horizontally.
2.6.3

Adjusting the needle plate (figure 1)

At the left needle guide, the theoretical needle radius of 41.3 mm should be
0.03 to 0.05 mm larger. At the needle slide plate, it should be 0.01 mm smaller
to 0.01 mm larger and at the right needle guide it should be 0.06 to 0.08 mm
larger.
The adjustment must be made using a dial gauge. Deviations lead to
significantly poorer sewing results and may even cause preliminary damage or
wear to the the sewing tools.
Figure 1
2.6.4

Replacing the needle slide plate (figure 3)

The needle slide plate on the central base of the needle plate can be removed
after loosening the screw (5).
When assembling, ensure that the needle slide plate lies firmly against the base.
Needle plate_adjusting_01
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