Pfaff 3811-2/45 Instruction Manual page 71

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Only use oil with an average viscosity of 10.0 mm /s at 40°C and a density of 0.847 g/cm at 15°C.
We recommend Pfaff sewing machine oil: part No. 280-1-120 105.
The oils used must not - or only to a negligible extent - effect swelling or shrinkage of the sealing
substances under any operating conditions.
Bi34-01.CDR
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