Methods for adjusting the injection advance angle of diesel generator sets:
1. When adjusting, rotate the flywheel ring gear so that the timing zero line on the flywheel is aligned with the pointer on the flywheel. inspection window on the flywheel housing. The piston of the first cylinder is at the starting point of the expansion stroke (the push rod can be moved left and right by turning the push rod by hand, and the intake and exhaust valves exhaust from the first cylinder are closed). Remove the fuel injection pump side cover and rotate the adapter plate so that the first cylinder piston spring is just compressed.
2. Then turn the steering wheel in the opposite direction (clockwise) about 23 degrees, tighten the fuel injection pump bolts (adjust the speed regulatortesse if the diesel engine rpm is low, loosen the plate adapter bolts) Refine the index lines etched on the driveshaft joint, 3 degrees per division, then tighten the bolts.
3. During actual maintenance work, the advance angle of the fuel supply is usually checked. Fuel feed advance angle refers to the angle of the crankshaft between the piston and the top dead center of the compression stroke when the oil has just come out. from the fuel injection pump outlet. Because checking the advance angle of fuel supply is more convenient and accurate than the advance angle of fuel injection. If the diesel engine fuel supply advance angle is found, and you want to know the engine fuel injection advance angle, you just need to subtract 8 degrees from the value of the advance angle of the fuel supply,which is the advance to the injection. corner.