An excerpt from a service manual for the Pfaff 230 & 332 machines. It reads: From time to time, about once every six month, it is advisable to rinse all moving parts in pure kerosene. This will help maintain the easy running of the machine. Proceed by squirting ample kerosene into all oil holes of the machine, raise the presser foot and run the unthreaded machine at high speed. After oil residues and dirt particles have been washed out, oil the machine and wipe it off. This procedure should be followed regardless whether the machine is used little or not at all. Cleaning and lubricating the sewing hook is instructed on page 64.
Contrary to this instruction in an old Pfaff service manual, we will not be dousing any machine in any amount of kerosene.
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