General Industries (GI) (knob speed changer)
Musashino-Busan
1. Moderate Use - Every 12 months
2. Heavy Use - Every 6 months
3. 6 to 8 Hours a Day - Every 3 months
Lubricants to be used are:
1. SAE 10 Motor Oil (i.e., Wynn's Mechanic Deluxe or equivalent)
2. Lubriplate (light grease)
Be CAREFUL to keep oil and grease away from these friction drive surfaces:
1. Idler wheel circumference
2. Drive - bushing end of motor shaft
3. Inside rim of turntable
Speed variation may occur if lubrication comes in contact with drive surfaces. To clean these surfaces, use Isopropyle alcohol or trichorthylene.
Lubricate all points in Fig.'s 1, 2, and 3 as follows:
1. Remove turntable retaining clip and remove turntable.
2. Remove all deck panel screws and remove deck panel from case.
3. Remove motor mounting screws and disconnect all linkage. Remove motor from deck plate.
4. Inspect for wear, rubber deterioration, and soiling. Rubber particles and grime from usage are another cause of speed variation. If motor is dirty, disassemble and clean with non-oily solvent (Tri-clean) or Isopropyl alcohol.
5. Lubricate as shown in Fig.'s 1, 2, and 3. The dots indicate points lubricated with SAE 10 Oil. One dot equals one drop of oil; two dots equal two drops of oil. The circled numbers indicate areas to be lubricated with grease. The grease should be applied sparingly to the bearing surfaces of the speed change cam, detents, and plates. DO NOT OVER-LUBRICATE:
6. After lubrication, reassemble in reverse order of assembly. When replacing turntable, guide idler wheel and brake pad into place under rim with fingertips. Do not force turntable down; rotate it clockwise and let it drop gently.