Lubrication - Brother LK3-B434E MKII Instruction Manual

9. MAINTENANCE AND INSPECTION

9-2. Lubrication

NOTE1: Fill the machine with oil when the oil level is down to about one-third full in the oil sight glass.
If oil is not added and the oil drops below this level, there is the danger that the machine may seize during
operation.
NOTE2: Be sure to let the machine operate for a while after adding the oil.
NOTE3: If there is no more oil on the felt of the shuttle race base, problems with sewing may result, so add oil to the felt
until it is slightly soaked.
NOTE4: Use only specified Brother oil (Nisseki Sewing Libe 10) for the machine oil.
33
q
w
LK3-B434E Mark II
1. Fill the arm-side oil tank with oil.
* When setting up the sewing machine and when
it hasn't been used for an extended period of
time, be sure to add 2-3 drops of oil at the place
indicated by the arrow.
2. Fill the bed-side oil tank with oil.
3. Add oil to the felt q of the shuttle race base.
* When setting up the sewing machine and when
it hasn't been used for an extended period of
time, be sure to add 2-3 drops oil to the felt.
4. If using the liquid cooling tank w, fill it with silicon
2
oil (100 mm /s).