This paper describes the valve clearance adjustment method for the 102 series of the Komatsu excavator, the standard valve clearance value of the 108 series engine of the small pine excavator, the standard valve clearance value of the 114 series of the small pine excavator, and why the clearance of the engine valve of the Komatsu excavator is adjusted, and the clearance between the engine valve and the clearance in the excavator is in the right way. What's the sound of a regular job?
Valve clearance adjustment method for Komatsu excavator 102 series engine:
Open the valve chamber cover and find a top stop, first adjust the 1 cylinder inlet, exhaust valve, 2 cylinder inlet, 3 cylinder exhaust valve, 4 cylinder inlet valve and 5 cylinder exhaust valve, then make a mark on the crankshaft pulley, turn the pulley for one week, adjust the remaining valve. The concrete method is to unlock the valve clearance lock nut at the end of the rocker arm and use the feeler (intake valve). 0.25mm, exhaust valve 0.51mm) to measure, tighten the lock nut properly and start the engine for inspection.
Standard valve clearance values for 108 series engines of Komatsu excavator:
The intake valve clearance of the 108 series engine is 0.34mm, and the clearance of the exhaust valve is 0.66mm..
Standard valve clearance values for 114 series engines of Komatsu excavator:
The intake valve clearance of the 114 series engine is 0.30mm, and the clearance of the exhaust valve is 0.61mm..
Why should we adjust the valve clearance of Komatsu excavator?
The engine has the phenomenon of heat expansion and contraction. If there is no valve clearance, the cylinder seal is not strict, and the pressure in the cylinder can not be set up. The serious person will cause the erosion of the cylinder and valve.
What should the engine valve clearance be under the normal working condition of the excavator?
A slight and rhythmic clatter.
