Brother B706 - Lubrication Mechanism

[!] Lubrication mechanism
1. Upper shaft oil supply
Upper shaft
(I) The oil from the pump 8 passes through upper shaft bushing M 8, enters the center of the upper shaft, and
from there is supplied to upper shaft bushing L 8 and upper shaft bushing R 8.
The oil dispersed in the arm column is supplied to the feed adjuster.
(2) An oil adjusting valve
8 is provided at the left end of the upper shaft, and oil is supplied to the thread take-up
arm via the counterweight and needle bar crank.
(3) Felt
is mounted on the needle bar crank in order to prevent excess oil discharge or oil clogging, and oil is
supplied to the needle bar connecting rod.
(4) The oil
that accumulates in the thread take-up shield is supplied to the needle barO and needle bar bushings U
and D via the oil wick 8.
(5) The oil is held inside by the rubber stopper 8 in the pulley presser screw at the right end of the upper shaft.
(6)
The oil that accumulates at the dip in the arm is drawn back to the pump 8 via a felt and a tube.
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From the library of: Superior Sewing Machine & Supply LLC