机械维修简易维修经验１０则（１）为防上５１９５型柴油机的气门应因松动、裂缝，延长其使用寿命，可在气门座圈的周围涂一层油漆，然后压入气缸盖气门座圈孔中即可。（２）为有效防止ＡＫ－１０型起动机活塞环定位销钉脱落，可将销钉加长，使其穿透活塞内壁，并把伸出的部分 Mechanical maintenance simple maintenance experience 10 (1) In order to prevent the valve on the 5195 diesel engine due to loosening, cracks, extend its life, can be painted in a layer of paint around the valve seat, and then pressed into the cylinder head valve seat hole In the can. (2) In order to effectively prevent the piston pin of the AK-10 starter from falling off, the pin can be lengthened so that it penetrates the inner wall of the piston and the protruding part