Brother S-7200C Instruction Manual page 55

B. Oil tank oil quantity (-[]0[], []3[] specifications)
Check the oil gauge window (1), and add more oil if the oil
gauge (2) is below the lower reference line.
(Refer to page 8.)
Upper reference
line
Lower reference
line
4238M
3. Checking
1. Replace the needle if it is bent or if the tip is broken.
2. Check that the upper threads have been threaded
3. Carry out a test sewing.
4239M
S-7200C
correctly. (Refer to page 17.)
11. CLEANING
48