How to Remove the School Bus Engine Decoration Cover?

For the beauty of the school bus engine compartment, many models are now designed with plastic decorative covers. Many school bus owners wipe the decorative cover very clean, thinking that this is caring for the engine.

For the beauty of the school bus engine compartment, many models are now designed with plastic decorative covers. Many school bus owners wipe the decorative cover very clean, thinking that this is caring for the engine.

In fact, it is just a piece of plastic, and the sludge covered under it is still there intact. So if you want to clean it thoroughly, you first need to remove the plastic cover.

The plastic decorative cover of the school bus is fixed with clips, and it can be removed by directly grasping the edge of the cover and pulling it upwards. However, the cover of some models will be connected to other pipelines.

For example, the old POLO designed the air filter element in the plastic decorative cover, and all the pipelines need to be removed before pulling it out.

Once the plastic cover is removed, you can see the main body of the engine, which is much dirtier than the plastic cover.

A school bus that has been around for a few years will have some sludge on the cylinder head cover or near the oil filler. It looks like grey matte paint. It is too much effort to wash it off with water.

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What is the main insulation of the generator stator winding

The wire rod is the basic component of the generator stator winding, and the main insulation of the generator stator winding refers to the insulation of the generator wire rod.

The individual strands (conductors with their own insulation layer) that make up the generator bar are braided, transposed and gelled, and then wrapped around the insulation layer continuously as a whole, and solidified and formed by a certain process.

This insulation layer is the main insulation of the generator stator winding, see Figure 2-4 Ebay Discount Code.

In the past, the stator of the generator also had the so-called discontinuous insulation, that is, the straight section of the wire rod in the stator slot was formed by a curing process, and the end of the wire rod was wrapped and insulated by other methods, which has been eliminated.

Removal and installation of the engine cylinder head - detailed operation steps illustrate

  1. When installing a cylinder head with a camshaft, the oil must be applied to the contact surface of the tappet and the camshaft.
  2. Before the cylinder head is installed, the plastic gasket protecting the valve can be removed, which is included in the delivery.
  3. When replacing the cylinder head, all coolant must be renewed

Disassembly conditions The engine is cold.

Disassembly steps

  1. Turn off the ignition switch and remove the battery ground wire. Drain the coolant and unplug the coolant hose from the connecting pipe on the cylinder head.
  2. Remove the upper part of the intake manifold, and block the water inlet pipe on the cylinder head with a clean rag.
  3. Remove the spark plug and loosen the clamp of the high-voltage ignition wire, and the guard plate of the fuel injection valve.
  4. Unplug the Hall sensor, coolant temperature sensor, air-conditioning thermal switch, and fuel injection valve plugs.  Just choose Best Products the that suits you.
  5. Loosen the wire clamp from the fuel distributor and unplug the vacuum hose from the fuel pressure regulator. Note: The fuel line is under pressure. Before loosening the hose joint, put a rag on the pipe joint and slowly pull out the hose to relieve pressure;
  6. Unplug the fuel supply and return hoses from the fuel distributor, and remove the harness bracket and the coolant line from the connecting pipe/cylinder head. Unscrew the front exhaust pipe from the exhaust pipe fitting.
  7. Tighten the central screw at the end of the toothed belt pulley according to the rotation direction of the engine, and remove the upper guard of the toothed belt.
  8. Remove the toothed belt from the camshaft timing gear.
  9. Remove the cylinder head cover, loosen and unscrew the cylinder head bolts in sequence, and gently remove the cylinder head.

installation steps

  1. Insert a clean rag into the cylinder to prevent dirt from entering between the cylinder wall and the piston. Also do not allow dirt to enter the coolant.
  2. Clean the sealing surfaces of the cylinder head and cylinder block, taking care not to form elongated small grooves or scratches (use sandpaper with a grit of no less than 100).
  3. Carefully wipe off grinding residue with a rag.
  4. Set the first cylinder piston at top dead center and counter-rotate the crankshaft.
  5. Lay the cylinder gasket: pay attention to the positioning pin indicated by the arrow; pay attention to the installation position of the gasket, and the part number should be read on the intake side.
  6. Install the cylinder head.
  7. Install the cylinder head bolts and hand tighten.

Electric hammer stator replacement and precautions

The rotor and stator are important parts of the electric hammer, and they are also one of the parts that are easily damaged. When replacing the stator, we need to pay attention to the following points.

And learn how to take it out and install it. For better maintenance and maintenance.  Just choose Best Products the one that suits you.

Method/Step

How to take out the stator from the case: Unscrew the two fixing bolts of the electric hammer stator, hook the stator core with your fingers, lightly hit the electric hammer case with a small hammer, and then the stator can be taken out from the case.

The installation method of the stator into the casing: Correspond the two screw fixing holes of the iron core with the fixing holes on the casing, and insert a thin iron wire from the fixing hole of the iron core to the fixing hole of the casing.

This is good for alignment, hit the bottom of the case with a hammer, and take advantage of the inertia. The stator fits easily into the housing.

Things to pay attention to: the stator core must be aligned in order to be installed smoothly. Before installation, be sure to clean up the foreign objects in the case.

The installation method of the stator copper spring on the brush holder: the stator copper spring is hooked on the brush holder.

Generally, use a longer screwdriver to clamp one side of the ring on the brush holder and move to the other at the same time.

It can be installed quickly. The operation here needs to be practised many times before it can reach a certain speed Amazon Discount Code UK.

Change the position of the stator copper spring to change the direction of the rotor.

Sometimes after changing the word, when the power is turned on and the test machine is turned on, the brush is on fire.

Most of them are due to the wrong position of the stator copper spring. The actual rotation of the rotor is different from the rotation required by the electric tool.

The problem can be solved by changing the position of the stator copper spring. When the lead wire is not long enough, it is generally necessary to lengthen the lead wire before it can be successfully replaced.


Ahlam Majid

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