Correct Use; Installing The Needle - Brother LH4-B800E Instruction Manual

7. CORRECT USE

Turn off the power switch before installing the needle, otherwise the machine may operate if the
treadle is depressed by mistake, which could result in injury.

7-1. Installing the needle

(1)
CAUTION
1. Use a Schmetz Nm 134 needle.
2. Loosen the set screw (1), insert the needle as far
as it will go so that the groove is facing toward
pulley, and then tighten the set screw (1).
* Factory default
Sub class -2, -5
Schmetz Nm134#90
2137Q
HE-8000
7. CORRECT USE
Sub class -3
Schmetz Nm134#75
57