Brother S-7300A - Lubrication Mechanism

S-7300A
4. MECHANICAL DESCRIPTIONS
41
4-4. Lubrication mechanism
This sewing machine's lubrication mechanism is a minimum lubrication type using tank lubrication.
The oil level can be checked in the oil gauge window without needing to tilt back the machine head or operate the sewing
machine..
1. Oil feeding pocket
2. Oil tank
3. To upper shaft, thread take-up and needle bar, etc.
(-[]0[] specifications)
<3> To rotary hook and rotary hook shaft (-[]0[], -[]3[]
specifications)
<4> Remaining return oil
1124D
(1) Oil gauge window
(2) Upper reference line
(3) Oil gauge
(4) Lower reference line
(5) Plunger pump
* Fine adjustments can be made to the lubrication amount for the rotary hook using the adjustment screw.
(Refer to “7-11. Adjusting the rotary hook lubrication amount”.)