Operation Manual

Operation
Operating manual 171/173 Version 01.0 - 01/201650
Looper lubrication
Check the oil level for looper lubrication approx. once every week.
Fig. 31: Looper lubrication
Checking the oil level
1. Switch off the sewing machine at the main switch.
2. Tilt the upper part of the machine back through 90°.
3. Check the quantity of oil in the reservoir (2).
Correct setting
With the upper part of the machine tilted half-way back,
the oil level must not fall below the minimum level
marking (4).
Topping up with oil
1. Switch off the sewing machine at the main switch.
2. Tilt the upper part of the machine back through 90°.
3. Loosen the locking screw (1) on the refill opening.
4. Pour in oil, up to but not p
ast the maximum level marking (3).
5. Tighten the locking screw (1).
6. Return the upper part of the machine to the upright position.
7. Switch on the sewing machine at the main switch.
(1) - Locking screw
(2) - Oil reservoir
(3) - Maximum level marking
(4) - Minimum level marking
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