The foregoing clamping instructions assume vinyl records, for shellac 78’s the record washer
should not
be used for risk of breaking the record.
2. The turntable is now ready for use. At this point packing and other items that are no longer
required should be stored in the case so as to be available if needed in the future.
3. The Model 20/3 is not equipped with a lid as this would increase the likelihood of acoustic
feedback. A soft cover is provided to protect the turntable from dust when not in use. The
back should be fitted first and the cover then brought forward so that the front can be
guided safely past the cartridge and stylus. When removing the cover start at the back and
lift it upwards then forwards away from the front of the tone arm.
12. MAINTENANCE
1. There are no critical adjustments or need for ‘tweak’ and only very little maintenance.
Clean the drive belt occasionally by drawing it through a piece of soft tissue or linen
moistened with lighter fuel. The same material may be used to clean the periphery of the
motor and driven pulleys. The main bearing is lubricated for life.
2. Having sintered bronze bearings the motor requires minimal lubrication. One drop
of oil
only in one year is sufficient and should not be exceeded. Remove the platter and drive
belt. Apply one drop of 1287 oil from the syringe at the point indicated on top of the motor.
Choose a time when the turntable will not be used for some hours so that the oil can find its
way down to the lower bearing. After this time check that there is no oil on the motor
pulley and replace the drive belt and platter. For cleaning, the platter should be removed
from the turntable whilst its surface is sponged with a soft cloth using warm water and
washing-up liquid, followed by warm water only then a dry towel.
3. The suspension dashpot is automatically sealed when the sub-chassis is locked down and
does not require maintenance.
4. Replace the drive belt after 1000 hours use. A replacement (Part No. 1100) is available
from SME Limited.
5. The life of the suspension bands will depend on climatic conditions. If eventually they
should stretch beyond further adjustment, replacements (Part No. 1020) are available from
SME Limited.
6. Changing the bands is simple and may even be done while a record is playing! Two spare
bands are provided in case of accidental damage. Unscrew and remove the upper gallery
cover from the top of the column and lift off the lower gallery cover. Remove the old band
and replace the new one over the anchorage studs. Replace the covers and re-check the
suspension height with the gauge.
7. The motor retaining and centralising bands will last indefinitely, however should one
become dislodged or lost, during unpacking for example, it must be refitted before the
turntable is used. The bands are located on anchor studs and fitted as shown in the
illustration on page 8, replacements (Part No. 1020) are available as paragraph 4 above.
8. There are no user-serviceable parts inside the control unit. A 500 milli-amp fuse is located
below the mains socket, its replacement should only be undertaken by qualified service
personnel.
12
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