Lubrication - Brother Z-8550B Instruction Manual

Lubrication

Checking the quantity of oil in the gear box
• 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.
1
Look at the oil window (1) from directly in front.
The oil level should normally be approximately 1
mm above the center reference line in the oil
window (1). 120ml of lubricating oil is added to the
gearbox at the time of shipment from the factory.
2
If the oil level is below the normal level, add more
lubricating oil.
Lubrication
3
Remove the rubber cap (3).
4
Add lubricating oil until the oil level is
approximately 1 mm above the center reference
line in the oil window (1).
Pour the lubricating oil 10 ml at a time while
checking the oil window (1).
NOTE
Do not pour too much lubricating oil into the specified
location. If too much oil is added, oil leaks may result.
5
Insert the rubber cap (3) securely.
6
Return the machine head to its original position.
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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