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Why water well drilling rigs are drilling at variable speeds and discharging too little smoke

 The engine idles well, and the speed can be increased rapidly by blasting the gas pedal, but the speed is not easy to be increased by continuously blasting the gas pedal, and the driving is weak, or it cannot be driven by using the gears above the middle speed, which is caused by insufficient low-pressure oil supply.

① diesel fuel filter or oil-water separator clogging.

② low-pressure oil circuit is not smooth.

③ Insufficient oil supply to the oil transfer pump or clogged oil inlet screen.

④ Failure of the air inlet valve of the oil tank cover. 

All of the above conditions can cause the injection pump low-pressure oil chamber fuel pressure is insufficient, only to maintain a small load required for the amount of fuel supply. For large and medium loads require more fuel supply, it will not be able to meet, resulting in driving powerless.

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