My first Post and some of the following are all about my experiences of work in local Servicing and repairing workshop of Hero Honda bikes.
I will be writing about random things and today I am going to write about 'Clutch'.
Before I go into the questions,I want you to know some of the basics of clutch assembly that I understood.
Clutch assembly is placed on the right hand portion of your bike the place covered near the rear wheel brake paddle.
It has following parts:-
1)GPD gear(i really don't know the significance,if you know please be free to share it)
2)Clutch housing
3)INNER
4)Clutch plates-4 in nos
5)Pressure plates-3 in nos
6)OUTER
7)Assembly of clutch wire to operate a small part which separates or interlock the clutch and pressure plates.
Working:-
The Gpd gear is directly mounted on the crank shaft.It is comparatively small(I forgot to measure the number of teethes)
The GPD gear drives a larger gear which is permanently fastened to the clutch housing.
The clutch housing is free to rotate and it is not connected to the gear box.
The part called INNER has 4 extrusions which are tapped holes to accommodate bolts.
Clutch plates and pressure plates are placed alternately and are in between the parts INNER and OUTER.
The part known as 'OUTER' has 4 holes,these holes co inside with that of INNER and accommodates the bolts-spring assembly.
Outer is connected to the gearbox.
When you press clutch,the small cam in clutch wire assembly operates and causes the springs around bolts to compress,this in turn results in increase in distance between the INNER and OUTER.So the clutch plates and pressure plates disengage to cause GPD->Clutch housing->INNER to rotate while OUTER remains stationary(or at the speed of wheels)due to the load applied to it via gearbox.
Now you change the gear and engage clutch slowly to result smoother transmission of power from rotating INNER -> clutch and pressure plates ->OUTER ->gearbox->rear Wheel.
(I know it sound somewhat strange but you will definitely get it if you see that assembly actually.)
I had few questions about clutch,such as whether it is useful to press the clutch while you are riding on a slope.The answer I got is:-
1)NO do not press clutch while you are driving on slope as it is the obvious cause of slipping of vehicle while you brake.
2)This type of clutch usage also contributes to wearing of clutch plates and INNER,OUTER parts of clutch assembly.As mentioned above the INNER rotates and hence rubs with the clutch plate contiguous to it,causing wear of that plate as well as INNER.Also as OUTER is moving due to rotation of wheel,thus the one in contact with OUTER also wear out.
Hence you should clutch only when you want to change the gear not otherwise.You may think such type of clutch usage while on slope may increase average of your bike but the effect is not so significant.However it causes harm to essential elements of clutch assembly.
(All the information is solely drawn from my experiences,so I might be wrong,please feel free to write,i really appreciate your views and comments.)
I will be writing about random things and today I am going to write about 'Clutch'.
Before I go into the questions,I want you to know some of the basics of clutch assembly that I understood.
Clutch assembly is placed on the right hand portion of your bike the place covered near the rear wheel brake paddle.
It has following parts:-
1)GPD gear(i really don't know the significance,if you know please be free to share it)
2)Clutch housing
3)INNER
4)Clutch plates-4 in nos
5)Pressure plates-3 in nos
6)OUTER
7)Assembly of clutch wire to operate a small part which separates or interlock the clutch and pressure plates.
Working:-
The Gpd gear is directly mounted on the crank shaft.It is comparatively small(I forgot to measure the number of teethes)
The GPD gear drives a larger gear which is permanently fastened to the clutch housing.
The clutch housing is free to rotate and it is not connected to the gear box.
The part called INNER has 4 extrusions which are tapped holes to accommodate bolts.
Clutch plates and pressure plates are placed alternately and are in between the parts INNER and OUTER.
The part known as 'OUTER' has 4 holes,these holes co inside with that of INNER and accommodates the bolts-spring assembly.
Outer is connected to the gearbox.
When you press clutch,the small cam in clutch wire assembly operates and causes the springs around bolts to compress,this in turn results in increase in distance between the INNER and OUTER.So the clutch plates and pressure plates disengage to cause GPD->Clutch housing->INNER to rotate while OUTER remains stationary(or at the speed of wheels)due to the load applied to it via gearbox.
Now you change the gear and engage clutch slowly to result smoother transmission of power from rotating INNER -> clutch and pressure plates ->OUTER ->gearbox->rear Wheel.
(I know it sound somewhat strange but you will definitely get it if you see that assembly actually.)
Clutch plate
Pressure plate
1)NO do not press clutch while you are driving on slope as it is the obvious cause of slipping of vehicle while you brake.
2)This type of clutch usage also contributes to wearing of clutch plates and INNER,OUTER parts of clutch assembly.As mentioned above the INNER rotates and hence rubs with the clutch plate contiguous to it,causing wear of that plate as well as INNER.Also as OUTER is moving due to rotation of wheel,thus the one in contact with OUTER also wear out.
Hence you should clutch only when you want to change the gear not otherwise.You may think such type of clutch usage while on slope may increase average of your bike but the effect is not so significant.However it causes harm to essential elements of clutch assembly.
(All the information is solely drawn from my experiences,so I might be wrong,please feel free to write,i really appreciate your views and comments.)
Awesome!!!!!!!!!!! Very good.Everything in there has been put up in words so perfectly and simply..
ReplyDeleteAnd there are may be 4, 5 or 6 friction plates depending on bike. pulser and many other high cc bikes have 5 to 6 pressure plates.
ReplyDeleteYa thanks Sanket,I didn't know that.I only checked for 100cc bikes such as Splendor,Passion and their derivatives.
ReplyDeleteawesome yaar.............
ReplyDeletebut y we use 3 - 4 pressure and clutch plate.
means wht will hapen if we use single pressure and clutch plate made up of very high friction materials .
is it possible?
No its not possible. Bcoz pressure plate and clutch plate are used alternatively which gives better engagement,and also very less surface ll be available.
ReplyDeleteur right ,but in case of cars ,lcv ,v r using only single pair.
ReplyDeletei thnk gpd is also for driving oil pump ( bt i m not confirm ) . clutch housing is also known as bell housing .
ReplyDelete