Adjusting The Quantity Of Oil In The Gear Box - Brother S-7220D Instruction Manual

Adjusting the quantity of oil in the
gear box
CAUTION
• Check the quantity of oil in the gearbox immediately
after tilting back the machine head. When the
machine head is left for long periods in the tilted-
back position, the amount of oil in the felt inside the
gearbox drops and the oil level seen from the oil
window (1) rises, so that it becomes impossible to
measure the actual oil level accurately.
• The position of the oil level in the oil window (1) will
vary depending on the angle of the machine head.
Tilt back the machine head while the head rest (2) is
installed in the correct position.
Checking the lubricating oil amount
The oil level should normally be approximately
2mm above the center reference line in the oil
window (1). (70 ml of lubricating oil is added to the
gearbox at the time of shipment from the factory. )
1
Look at the oil window (1) from directly in front.
2
If the oil level is below the normal level, add more
lubricating oil.
Lubrication
1
Remove the rubber cap (3).
2
Add lubricating oil until the oil level is
approximately 2mm above the center reference
line in the oil window (1).
CAUTION
• Pour the lubricating oil 10 ml at a time while
checking the oil window.
• Do not pour too much lubricating oil into the
specified location. If too much oil is added, oil leaks
may result.
3
Insert the rubber cap (3) securely.
4
Return the machine head to its original position.
NOTE
The rubber cap (3) has a hole in it for adjusting the air
pressure. When replacing the rubber cap (3) use only
the replacement part specified by Brother.
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