Pfaff 467 User Manual

38. Machine Lubrication
Machine lubrication comprises two parts: oiling the needle bar bearings and replenishing the
oil in the hook lubrication system, as discussed in Chapter 17. Both these functions are to be
performed by the operator. Since each machine is an expensive piece of equipment and any
damage caused by negligence may entail a costly loss, It is recommended that the maintenance
man supervise the weekly machine care by the operators. In addition, he should tell them that
1. only a few drops of oil must be put into the oil dents at a time in order to prevent excess
oil from soiling the work,
2. the small foam plastic pads must not be compressed with the tip of the oiler spot otherwise
the transverse holes are exposed and the oil flow to the needle bar is endangered,
3. negligent oiling of the needle bar may cause binding of, and damage to, the front parts,
4. only oil dents x and y (Fig. 34) and occasionally the oil pad on the presser bar must be
provided with oil,
5. the oil must never be topped up above the red mark or the reservoir be filled up completely
because even if the shut-off valve is opened no oil can enter the hook lubrication system,
and
6. the oil level must always be visible in the oil sight glass and must never drop below the
lower mark because there is a danger that an air bubble will enter the oil tube and block
the oil flow to the shutt-off valve when the oil level is too low.
39. Lubricating the Feed Regulating Shaft
The feed regulating shafts are rotated only when the stitch length is changed or when the
direction of feed is reversed by depressing control p.
Both feed regulating shafts are carried in two brass bushings each. These are fitted with
graphite pockets so that no additional lubrication is required.
40. Sealed-for-Llfe Anti-Friction Bearings
Sealed-for-life anti-friction bearings are high-precision bearings made of first-class material
and filled with grease which is sealed by gaskets and an oil and gasoline-proof coating so
that adequate lubrication is ensured for the entire life of the bearing and no additional servicing
is required.
Subsequent lubrication of these bearings is not only superfluous, but also useless because
the oil cannot enter a sealed bearing.
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From the library of: Superior Sewing Machine & Supply LLC

Pfaff 467 Specifications

General

Brand	Pfaff
Model	467
Category	Sewing Machine
Language	English