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 1. Check a gap between candle electrodes by means of the round probe. The probe has to move between electrodes under small effort. | 
 
 
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 2. If necessary turn in a side electrode. It is necessary to turn in an electrode near a bend. Turn out candles on one. | 
 
 
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  3. Disconnect a wire from a candle, holding a tip and slightly turning them. | 
 
 
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 4. Clear and blow compressed air of the platform near candles and turn out candles. | 
 
 
 | 5. Check the turned-out candle and estimate an engine condition. | 
 
 
 | 6. Grease a carving of a new candle with structure from a holding strap on a copper basis, insert and turn by hand, then tighten with the set moment. | 
 
 
 | 7. Check a condition of wires (see subsection 2.17), dress a wire on a candle, slightly rotating tips and pressuring them. Repeat the procedure for other candles. |