RATE DDD
1. | Carbon grinding by machine to stops, including adjustments to compensate for wear and including the use of fixed gauges. |
RATE E
1. | Repetition operating milling machine on carbon products to stops and/or fixtures. |
2. | Repetition carbon cutting by bandsaw and/or power saw and/or abrasive disc, using rule and/or tape and/or fixed gauges. |
RATE F
1. | Repetition drilling and/or countersinking to jigs and/or fixtures and/or stops, including compensating adjustments for wear on drills. |
2. | Repetition production machining of carbon products on capstan lathes to stops where the work piece is held by devices not necessitating any centralising or trueing, excluding setting up. (This operation is limited to a machine not exceeding a 52 mm bore diameter.) |
RATE G
1. | Production broaching of carbon products on hand and/or automatic machines, where manual operations are limted to setting the machine in motion, stopping, loading and unloading the machine (excluding setting up). |
2. | Repetition batch checking and/or inspecting, using fixed gauges. |
3. | Repetition operation of or attending machines designed for or permanently adapted for a single-tool operation where it is not necessary to centralise or true the work by hand and where manual operations are limited to loading the work piece into the chuck or holding device of the machine, starting, operating and/or attending, stopping and unloading the machine (excluding setting up). |
4. | Shaping of carbon on special-purpose tool. |
6. | Tamping by hand and/or machine. |
7. | Winding brush pressure springs by hand on a manual machine to length gauges. |
8. | Winding of insulation spirals by hand on a manual machine to length gauges. |
RATE H
1. | Assembly of pre-manufactured components from stock requiring no fitting or adjustment, but including deburring. |
2. | Cutting and/or cropping flexible connections by manual guillotine, including use of length gauges. |
3. | Dressing and/or deburring by hand and/or by grinding and/or by portable power tool. |
4. | Fixing flexible insulation and/or springs and/or terminal ends and/or connectors. |
5. | Metal coating of brushes. |
6. Packing of manufactured products for sale and dispatch.
7. Sweating of terminals by dipping.
8. Trade symbol and grade marking.