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Engine fails to start on air

1. Insufficient air in the air bottle. check the pressure gauge .

2. Sticking air starting valve .

3. Turning gear interlock switch faulty .

4. Air distributor is faulty .

5. Exhaust valve is opened due to less air spring spring pressure.

6. Worn piston ring which leaks the air .

7. Automatic starting valve is faulty .

8. Bursting disc diaphragm is leaky .

9. Leakage in the pipeline due to corrosion .

10. Rack position is in manual mode . Change it through governor to automatic mode .

11. Booster pump is not building up pressure to the fuel pump. 

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