If there are no two kinds of all iron enameled rivets, you can file the bolt head with a file, and knock it in with nails; if there is no such thing, you can use a small carpenter's chisel like a slotted screwdriver to chisel off or raise the bolt head, and then screw it off with pointed nose pliers.

1) Remove the cover firmly, pay attention to the need to cross loosen from both sides to the management center.

2) Take out the cushion and pay attention to the installation direction of the cushion.

3) Rotating the actuator, the disassembly is firm (attach importance to the screw also need to loosen from both sides to the management center).

4) Remove the sealing gasket.

5) Loosen the thick and firm screw of automobile oil and disassemble it.

6) Disassemble and disassemble the piston rod group of the actuator and pop it out so that the piston rods of cylinder 1 and 4 are at the bottom dead center.

7) Separate and disassemble the tightening of cylinders 1 and 4, remove the rolling bearing cover, all iron countersunk head color rivets, pay attention to crankshaft matching code, and put them in order.

8) Separate the piston rod crankshaft parts of cylinder 1 and 4 with vulcanized rubber hammer or hammer head wooden handle, grasp and take out the piston rod crankshaft parts at the cylinder inlet and outlet, and pay attention to the installation target of piston rod.

9) Replace the connecting rod bearing cap and crankshaft according to the original parts. The crankshaft of the contradictory cylinder cannot be adjusted to each other. Use the same method to disassemble and assemble the piston rod crankshaft group of cylinder 2 and 3.

10) Dismantle the flywheel set of the water pump of the engine. Loosen the screw of the flywheel of the water pump with all aluminum rivets. Disassemble and assemble the flywheel of the water pump. The flywheel of the water pump is relatively heavy, so attention should be paid to calmness during disassembly and assembly. Disassembly and assembly of front and rear sealing boss and.

11) From both sides to the management center, loosen the tightening screws of the main rolling bearing cover of the engine crankshaft, pay attention to the installation code of the main rolling bearing cover and the housing orientation, and the main rolling bearing cover of the contradictory cylinder should not be adjusted to each other.

12) Lift down the engine crankshaft, and then install the main rolling bearing cover according to the original point, and screw in a small amount of solid screws. Attention should be paid to the accurate positioning of engine crankshaft and the installation target which is difficult to open.

Overall installation of the actuator:

13) Install all parts in sequence according to the reverse of the disassembly and assembly of the engine.