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1) Oil Distribution Diagram
The oil distribution diagram is shown on the left.
2) Supplying and Replacing Oil
Take care of the following points when supplying or replacing oil.
(1)
Check whether or not the oil level reaches the specified level on the oil level gauge
.
Supply oil to the tank until the [H] line on the oil level check window is reached. Perform the warming-up
operation of the machine until oil flow from the hook driving shaft saddle is confirmed. Then, stop the
machine. At that time, the oil surface in the tank should reach a level within the range of [H] and [L] to
satisfy the specified level of oil. If the oil surface fails to reach the specified level, supply oil from the oil port
.
(Caution) Be sure to close the oil port cap
.
(2)
Inspect the oil sight window to make sure that oil is supplied to the hook (Oil spouts from the oil reservoir
and flows toward the hook driving shaft saddle).
(Oil should always accumulate by the depth of approximately 1 mm of the bottom of the oil sight window.
This is the proper amount of oil to spout from the oil reservoir).
(3)
Observe the oil flow in the urethane tube from the lower section of the bed to check whether or not oil is
fed to the hook driving shaft saddle and then circulated.
(4)
Carefully observe the filter to check whether or not oil changes in color, due to oxidation and deterioration.
If oil changed in color obviously, replace the deteriorated oil with new oil without delay. To change oil,
loosen the drain cock
(hexagon head bolt) located under the bed tank and expel the deteriorated oil
from the drain outlet. Remove the top cover of the bed, clean inside the bed with cleansing oil and dry it
with an air-blow. At this time, take care not to allow any foreign material, including a screw, to enter the bed
tank. After the bed tank is drained and cleaned, securely fasten the drain cock
. (As reference, replace
it every 500 hours of operation of the sewing machine).
When replacing the oil, also replace the filter with a new one. (Refer to next page for how to replace it).
(Caution) When replacing oil, also replace the packing (Part No. RO068190100) for the drain cock
and the packing (Part No. 10701209) for the bed top cover with new ones.
Be sure not to use any oil other than JUKI New Defrix Oil No. 1.
Line H
Line L
