How to Adjust the Valve of China Heavy Duty Truck HOMAN 530 Engine?

First, determine the adjustment order.

1. Determine the adjustment sequence: According to the valve adjustment sequence diagram, determine the valve sequence to be adjusted, generally the ignition sequence.

2. Cleaning valve parts: Clean the valve and its surrounding parts with detergent or gasoline to keep them clean.

3. Loosen the nut of the valve jack: loosen the nut of the valve jack with a wrench and a Phillips screwdriver, so that the valve plate can move freely.

4. Adjust the valve clearance: check whether the valve clearance meets the requirements with a thickness gauge, and adjust the valve clearance by rotating the valve jack until it reaches the specified value.

5. Fix the valve jack nut: After adjusting the valve clearance, tighten the valve jack nut with a wrench and a Phillips screwdriver.

6. Cleaning residue: clean the detergent or gasoline remaining in the valve and surrounding parts.

7. Test: Start the engine, let the engine run for a period of time, observe whether there are abnormal sounds and smells, and make necessary adjustments.