SINGER W7911 - Manual (Page 16)

16
Before oiling the upper part of the sewing unit at points indicated by arrows in Fig. 22
turn hand wheel toward you until the take-up lever is at its low'est point.
Avoid over-oiling-only a drop is needed at each point.
To oil parts under the bed of the machine, tip the unit back on its hinges and apply a
drop of oil at each point indicated in Fig. 23.
HOW TO REPLACE LIGHT BULB
Pull light bracket down by hooking index finger tip on curved piece under light bulb.
Unscrew bulb and replace with bulb of same size, which is available from your sewing
machine dealer.
CLEANING AND OILING THE SHUTTLE
(See Fig. 24 and 25)
The stitch forming mechanism occasionally becomes
clogged with loose threads and lint. This will interfere
with the efficient operation of the machine. Cleaning
and removal of the lint will safeguard the performance.
To remove the shuttle assembly, proceed as follows;
1. Turn the balance wheel until the needle reaches its
highest position. Tilt head back on its hinges.
2. Remove bobbin case (A), Fig. 24.
3. Turn the two shuttle race cover clamps (B) downward
and remove the shuttle race cover (C) and shuttle
body (D).
Fig. 24