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Dongfeng Military Adjustment and Maintenance - By adjusting the common fault of Cummins diesel - Public engine failure and elimination method (a)

Views: 1     Author: Site Editor     Publish Time: 2021-08-18      Origin: Site

Common faults and exclusion methods IV engines

1, the engine starts difficult

Fault mode

Elimination method

1, the crankshaft speed is too low (<120 rpm / min)

Check if the starter battery connector is safe. Check battery voltage

2, fuel pollution

After cleaning the fuel system

3, air filter blockage

Check air filters, clean or replace

4, air in the fuel system

Low launch, high pressure air passage

5, the timing of the fuel injection pump is not

Check, adjust

6, the valve clearance is not adjusted

readjust

2. Turn off the engine instant

Fault mode

Elimination method

1, the engine idle is too low

Check and adjust

2, fuel pollution

After cleaning the fuel system

3, more air in the fuel system

Each fastening pipe joint and exhaust

4, fuel filter blockage

Clean or replace

5, the pump does not work

Check repair or replacement

3, engine operation is unstable

Fault mode

Elimination method

1, low idle speed

Check and adjust

2, the fuel tank is too low

come on

3, the fuel system has air

exhaust

4, fuel pump does not work properly

Commissioning and repair

5, no injection time

Check and adjust

6, fuel atomization is poor

Check and repair

This article from: Dongfeng Heavy truck company depot - \\\"military Dongfeng off-road vehicle adjustment and maintenance manual \\\"

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