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Lubrication - Brother T-8421D Instruction Manual

Twin needle direct drive lock stitcher
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Lubrication

The sewing machine should always be lubricated and the oil supply replenished before it is used for the first time,
and also after long periods of non-use.
Use only the lubricating oil <JXTG Nippon Oil & Energy Corporation Sewing Lube 10N; VG10> specified by
Brother.If this type of lubricating oil is difficult to obtain, the recommended oil to use is <Exxon Mobil Essotex SM10;
VG10>.
• When cutting the nozzle of the oil tank, hold the base of the nozzle securely. If you hold the end of
the nozzle, injury from the scissors may result.
• Do not connect the power cord plug until adding lubricating oil is complete. The machine may
operate if the treadle is depressed by mistake, which could result in injury.
• Be sure to wear protective goggles and gloves when handling the lubricating oil and grease so that
they do not get into your eyes or onto your skin. Otherwise inflammation can result. Furthermore, do
not drink the oil or eat the grease under any circumstances. Diarrhea or vomiting may result. Keep
the oil and grease out of the reach of children.
1
Hold the base of the nozzle of the accessory oil
tank (1), and use scissors to cut about half-way
along the straight section (A) of the nozzle.
2
Loosen and remove the nozzle, and then remove
the seal (2).
3
Tighten the nozzle.
Lubricating the oil cover
4
Tilt back the machine head.
5
Remove the rubber cap (1).
6
Use the accessory oil tank (2) to pour lubricating oil
into the oil cover (3) until the oil level reaches the
reference line (4).
CAUTION
Do not fill with lubricating oil past the reference line (4). If
you pour in too much lubricating oil, it may spill out when
the machine head is tilted back.
7
Replace the rubber cap (1).
8
Return the machine head to its original position.
CAUTION
7

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