How to install the gear of the lawn mower

How to install the timing gear of the lawn mower? The installation method of the engine timing gear is as follows: the timing gear, that is, the camshaft gear. The marked side of the camshaft gear should face outward, align with the pin on the camshaft, press in and place the lock plate, tighten the nut, and lock the lock plate. During installation, the marks of all gears must be aligned. Two teeth of the engine crankshaft gear with a mark of 0 are aligned with one tooth of the intermediate gear with a mark of 0. One tooth of the camshaft gear with a mark of 0 is aligned with two teeth of the intermediate gear with a mark of 0. Both the upper and lower balance gears are aligned with one tooth of the intermediate gear with a mark of 0. The crankshaft gear and camshaft gear alignment of a multi cylinder four stroke diesel engine is the same as that of a single cylinder four stroke diesel engine. One gear with a mark of 0 on the high-pressure oil pump gear is paired with two gears with a mark of 0 on the intermediate gear.