JUKI LZ-2280A Series, Инструкция по эксплуатации

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1. After the adjustment, idle the sewing machine at the sewing speed to be used for sewing about
30 seconds. Then, check the oil quantity by comparing with the sample which shows the appro-
priate oil splash (marks).
2. When adjusting the amount of oil in the hook, perform the adjustment in a way of reducing the
oil amount after somewhat increasing it.
3. The amount of oil in the hook has been adjusted at the max. sewing speed at the time of delivery.
When you always use the sewing machine at low sewing speed, there is a possibility that trouble
occurs due to the lack of amount of oil in the hook. When the sewing machine is used always at
low sewing speed, perform the adjustment of the amount of oil in the hook.
4. There is a possibility of causing oil leakage from the hook shaft section since oil does not return
to the oil tank when oil amount adjustment screw ❶ is used in fully-tightened state. Do not use
the screw in fully-tightened state. In addition, when the amount of oil in the hook is not obtained
unless oil amount adjustment screw
❶ is near in fully-tightened state, it is considered that hook
shaft oil wick (JUKI Part No. 11015906) is clogged or the like. Replace the hook shaft oil wick.
5. Never adjust screw
❷
of the hook oil quantity adjusting valve since it is fixed.
Tilt the machine head, and adjust the amount of oil in
the hook by turning the oil amount adjustment screw
❶ mounted on the gear box B.
Turn the adjusting screw in the “+” direction (counter-
clockwise) to increase the amount of oil in the hook.
Turn the adjusting screw in the “–” direction (clockwise)
to decrease it.
3-2. Adjusting the amount of oil in the hook
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
❶
❷