Radio Corp. of America 960267
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|Manufacturer:||Radio Corp. of America|
RUMBLE OR HOWL
MOUNTING GROMET SEATED TOO RIGID
VOLUME CONTROL ADVANCED TOO FAR
TOO POSITIVE A
TONE ARM FAILS TO LEAVE REST AUTOMATICALLY
The spindle shelf and the top of spindle shaft should be free from burrs or rough edges to avoid scratching records or damaging record center holes. The record shelf edge should be smooth and be rounded only to a minute radius. Never round the bottom edge of the record separator latch. A slight application of wax on the spindle shaft will prevent " squeal " of a stack of records.
Motor is lubricated at factory to provide normal operation for a long period of time. If it becomes necessary to lubricate, use SAE # thu motor oil to saturate the felt wicks on the motor bearings.
Use STA - PUT # 512 or SAE # 30 motor oil.
Slides and Levers
Use STA - PUT # 512. STA - PUT can be purchased from E.F. Houghton & Co., 303 W. Lehigh Ave., Phila., Pa.
Caution: Never bend the sapphire support wire. Extreme care should be used when loosening the nut so that the twisting motion does not break the crystal. Remove the two screws holding the sapphire guard in place and remove guard. Remove the small nut and washer on the threaded shaft of the sapphire holder and gently push the shaft through the hole in the armature shaft until the sapphire holder assembly comes free. Do not use force or the crystal may be broken. Insert threaded shaft of replacement sapphire holder through armature, shaft and replace the washer and nut. Make sure that the sapphire is in the correct position. Take hold at the lower end of the shaft with a pair of pliers while tightening the nut, being very careful so as not to strip the threads or break the crystal. Replace the sapphire guard, positioning it by means of the oversize screw slots. Make certain that the sapphire and its supporting wire are centered in the guard. Tighten the guard screws. Before using, check to see that the sapphire projects far enough (approx,.020) beyond the guard so that the guard will not strike the record. If necessary, bend the guard a little,