1. Engine Blockage Cause 1. The oil drain switch is in the closed position or the drain switch is blocked. 2. The fuel tank vent hole is blocked. 3. The filter screen in the sedimentation cup or the small strainer in the inlet screw of the oil pump inlet plug is fouled. 4. Does not completely rule out the air in the oil circuit, forming air resistance. 5. The diesel fine filter or coarse filter is contaminated and blocked. 6. The oil pump is not supplied with oil or the oil supply is insufficient. The main reasons are: (1) The inlet valve and the outlet valve are not sealed tightly, and the spring fails or breaks. (2) The plunger is worn or pulled, or the plunger rod bites and the spring breaks. Second, maintenance or troubleshooting methods 1. Place the oil drain switch on the fuel supply position, or unblock the drain switch and clean the oil drain switch. 2. Unscrew the fuel tank cap and unscrew the ventilation holes on the fuel cap. 3. Remove the strainer in the sediment cup or the small strainer in the oil pump inlet fitting bolt. Clean it with diesel. 4. Exclude the air in the oil line section by section. 5. Remove the diesel coarse filter and fine filter and clean the filter element. If it is difficult to clear, replace the filter element. 6. Decompose the oil pump and check the wear of the inlet valve, outlet valve and plunger. The spring is in good condition. If it cannot be repaired, replace the oil pump assembly.

Tattoo flash are prepared tattoo designs which are intended for use in rapid tattooing. Most visitors to tattoo shops have seen tattoo flash, as they are typically displayed in the walls and in portfolios to give customers an idea of the kind of work they can receive. Tattoo flash encompasses a wide range of styles and designs, and it can come from a variety of sources.


Originally, tattoo flash were designed by the artist, who would display flash so that customers could pick a tattoo they wanted. Artists would also modify flash or create custom pieces on request. Over time, artists started trading flash with each other, and also also selling tattooflash, disseminating styles and designs across a broad community. Ultimately, companies started hiring tattoo flash designers, who produce a high volume of pieces for commercial sale on individual sheets or in books of collected tattoo flash.


Some people look down upon tattoo flash, arguing that while it's fine to use flash for inspiration, tattoos really ought to be custom designed, to create a unique and original piece. Copying from flash can also have complex copyright implications; for example, a client who prints out a piece from the Internet and asks to get it as a tattoo might potentially be violating copyright laws, unless he or she has been given explicit consent to use the work.

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