Pharmaceutical intermediates HS code mapping

List of catalogs of this article:

• 1, How to remove the engine assembly?
• 2、 What tools are used to disassemble the engine of a pedal motorcycle?
• 3, How to disassemble and install the three-wheeled motorcycle engine and separate it from the drive shaft?
• 4, How to disassemble the engine of a pedal motorcycle
• 5, What tools are used for motorcycle engine maintenance (disassembly)?

How to remove the engine assembly?

1. Empty the water and oil in the tank, turn off the car fuel tank switch, and remove the oil pump and oil pipe connector. ( 2) Remove the power cords and wires on the generator. Remove the inlet pipes of the water tank and the nuts everywhere.Connect bolts and pins, etc. Remove the water tank and frame. ( 3) Remove the hood and fender.

2. In the driving room, remove the nut connecting the gearbox and the flywheel shell and the rear hand brake of the gearbox, the edge and the transmission shaft, etc. Disassemble the gearbox assembly with a sling. ( 5) Remove the clutch tie rod, separation fork and transmission shaft, and remove the engine support rod and front and rear support frame nuts. Tie the engine with a rope.

3. The steps for disassembly and disassembly of the engine are as follows: place the engine upright. Remove the intake and exhaust manifolds and the cylinder head outlet pipes. Remove the cylinder head cover. Remove the rocker arm assembly on the cylinder head, remove the boom chamber cover, remove the putter, and take out the boom in order. At the same time, write the sequence number. Remove the cylinder head and gasket.

What tools are used to disassemble the engine of a pedal motorcycle?

To replace the cylinder block, piston and other parts of the Ghost Fire 100 pedal motorcycle, the engine generally needs to be removed from the frame. There are more tools required, mainly including 1117 opening, plum blossom and socket wrench, Phillips and one-word screwdriver, sharp-nosed pliers, hammer and rubber hammer and other tools, and some may also Other tools will be used.

Cooling system: including water pump, radiator, fan, water pipe, cylinder discharge valve, water sleeve, etc. Its function is to dissipate the heat of the heat-received parts into the atmosphere to ensure the normal operation of the engine. Lubrication system: including oil pump, filter collector, pressure limiting valve, lubricating oil channel, oil filter, etc.

The removal of the edge cover screw of the scooter is generally used with an 8# T-socket wrench.

The piston and piston ring of motorcycles are disassembled and installed with special tools, but in general maintenance, most people do not use special tools, but only use a few common tools and hands such as sharp-nosed pliers.

How to disassemble and install the three-wheeled motorcycle engine and separate it from the drive shaft?

Remove the bearing cover. Unplug the opening pin of the bearing. Remove the screw limit card cover of the bearing. Unscrew the screw that fixes the bearing. Remove the flange and bearing. Install a new bearing. After covering the flange, screw on the fixing screw. Install the card pin.

First, remove the centrifugal machine filter, then pull out the clutch putter and the separation bearing, and finally remove the spring with the spring clamp. The clutch can be removed as a whole.

The principle is also different depending on the engine. I'll just say it briefly. There are two shafts in the engine: the main shaft and the auxiliary shaft, also known as the active shaft and the drive shaft.

The method of replacing the auxiliary axle of a tricycle is as follows: align the main and auxiliary gear shafts and load them into the left box of the engine, and then load the variable speed drum and fork. Put the fork head of the fork into the main and auxiliary shaft gear grooves. Pay attention to the left, middle and right signs on the fork. Don't install them wrongly.

How to connect the three-wheeled motorcycle engine and the transmission shaft? Cylindrical gear transmission. For the upper camshaft and the lower camshaft, the gas valve mechanism mostly uses cylindrical timing gear transmission, and the crankshaft gears mesh with the camshaft gear through the intermediate gear. The timing gear uses more helical teeth to ensure smooth meshing and reduce noise.

How to disassemble the engine of a pedal motorcycle

Steps to disassemble the motorcycle engine: first remove the carburetor, unplug the relevant hoses and wire plugs; then unplug the spark plug cap, remove the exhaust pipe, remove the air filter, remove Remove the rear shock absorber, remove and pull out the engine hanger bolt, and finally the engine can be removed from the frame.

Disassemble the engine from the motorcycleWhen it comes down, you need to remove all the bolts fixing the engine, remove the sprockets, remove the carburetor and exhaust pipe, unplug the engine wires, and some tubes connected to the engine, and then the engine can be removed from the frame.

The ignition and high-pressure bags of motorcycles are easy to replace. They are all installed on the frame. Different motorcycles have different positions of the ignition and high-pressure bags, but most of them are easy to find. After finding it, unplug the wiring, remove them from the frame and replace them, and then re-fix it and plug in the wiring.

The disassembly of the engine must be carried out after full cooling, otherwise it will cause deformation of some parts, such as the deformation of the cylinder head. Turn off the gas tank switch and remove the gas pipe. Release the lubricating oil in the crankcase and transmission.

Is it the left cover?There are also some differences between different cars. Some need to remove the guard on the left side of the car body first, and some need to remove the foot start lever first, but some do not need to be removed. Then remove all the screws on the left cover of the engine and knock on the shell with a rubber hammer, etc., and you can pull it off the engine.

What tools are used for motorcycle engine maintenance (disassembly)?

1. Ordinary wrenches: wrenches include open wrenches, plum wrenches, socket wrenches, movable wrenches, torque wrenches, and hexagon wrenches. The opening size of the selected wrench must be consistent with the size of the bolt or nut. If the opening of the wrench is too large, it is easy to slip and damage the hexagon of the screw. Starting: Starting: Starting includes one-character starting and cross starting.

2. A screwdriver is a tool used to remove and install screws.They have different types and sizes to adapt to different types of screws. When using a screwdriver, you should select the correct type and size and insert it into the head of the screw. Then, use the handle to rotate the screwdriver until the required tightness is reached.

3. General special tooling: magnetic motor stop rotation and rotor disassembly tooling, clutch stop, crankshaft stop, sprocket stop, plastic hammer, special four-claw sleeve, valve installation tool, lengthened iron hook (for loading the current chain), stopper ruler (valge clearance).