Advice 1: How to disassemble the carriage

One of the dirtiest places in your bike is a bottom bracket shell of the frame. In this regard, the cyclists from time to time faced with the need to disassemble the carriage and clean from dirt. To implement this process, it is necessary to prepare in advance the necessary tools.
Instruction
1
Install the bike in a comfortable position, in the event that it does not fall. The fact that the removal of the carriage requires some effort, and the precariousness of the structure may strongly interfere.
2
Put the bike chain on the smallest driving sprocket, and then remove it. The boot has two holes in which to insert the appropriate tool, and then Unscrew the part from the connecting rod. Under the boot you will see a hollow bolt that twisted off the hexagons on 10, and then hold down the pedal.
3
Remove the washer located under the bolt, and completely remove the inner screw of the puller. Unscrew the puller from the connecting rod and remove the latter from the carriage. Repeat the same operation with the second axis.
4
Take a special wrench and loosen the lock nut with right-hand thread, which is located on the carriage on the left side. It is necessary to make some effort, but do not overdo it so as not to break the key or damage to the item. In some designs bike the nut is missing.
5
Insert the slotted groove key for carriage. Remove from the frame with a wrench left Cup adapter which has a right-hand thread. In this case, use tools with long handles to make it easier to rotate and make the effort. Remove the left-hand Cup with bearing.
6
Go to the right side of the bike on which the sprocket. By a similar method remove the frame from the right Cup, which has left-hand threads. If necessary, make the effort.
7
Remove the cartridge or the right Cup with the axis of the design of the bike. Thus, the carriage will be lifted. Clean it from Stroy grease with a cloth, then wash all parts in solvent, for example, in kerosene. After they dry out, lubricate the carriage and install back in the bike.

Advice 2: How to remove the carriage off the bike

The carriage of a Bicycle refers to the nodes, the wear as. When this happens, it can be disassembled, replace damaged parts with new, then continue to use the bike.
Instruction
1
Take a Bicycle wrench and grab the pedal for a nut located at the place of its connection with the connecting rod. Rotate the nut in the direction opposite to that in which the pedal spins while driving forward. Similarly remove the second pedal.
2
Remove the nuts that secure the wedges. A hammer to knock them out. Wedges are disposable items after removing them must be replaced. This can be avoided only if they were picked very carefully. Remember, what crankset and pedals are left and which right (on the pedals there are usually special signs in Russian or English).
3
Now the connecting rods can be removed - open access to the carriage. Its holding nut located on the side opposite to the leading asterisk. For her the loosening use so-called BB key - it is expensive, but allow you to repair the bike more than once. If such key is not present, be sure to get him or, at least, attach to the oblong hole of the nail head and start to spread along the edge is very light strokes so that the nut started to spin counterclockwise. This process will be slow, but in any case, do not try to speed it up, increasing the force of the blows.
4
Remove the slider and replace it with another. Make sure that the new node was installed with the same side as the old one. Screw the nut first by hand and then, when the power of the hand will miss key or, in extreme cases, as described above, with the only difference that it will have rotated clockwise. Make every effort not to disrupt the thread. Lubricate the new slide. If the chain jumped, put her.
5
Put the rods and lock them with wedges. Drive a wedge, and when the opposite side would be thread, secure the nuts. Screw in the cranks pedals.
Note
Wear gloves. Beware of getting fingers in the chain and falling of the bike leg. Note that on some bikes the cranks are not attached to the wedges, and in other ways.
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