Automobile Level04-U3-S1-Overhauling of Clutch

 

Session – 1 (Overhauling of Clutch)

 

Q1.         Clutch assembly dks overhaul dc iM+rh gSa \

Ans.       ;fn Clutch dk;Z djrs gq, vkokt djrk gS ;k dk;Z djrs gq, slip djrk gS ;k engagement ds le; jerking movement djrk gS rks ;g clutch assembly dks overhaul djuk t:jh gks tkrk gSA

 

Q2.         Diaphargm clutch ds ckjs esa crk,aA

Ans.       bl izdkj ds clutch esa coil spring ds LFkku ij diaphragm clutch iz;ksx gksrs gS A bls blfy, Mk;kQzke clutch dgk tkrk gSA ;g coil spring dh rqyuk esa size esa NksVk gksrk gS vkSj vf/kd terque transmit djrk gS D;ksafd  diapharagm spring dh ctk; vf/kd pressure lgu djrk gSA

               Activity :- Vehicles esa clutch dks overhaul djukA

               vko';d tools:- Open, ring vkSj box spanner, special tool

               Engine ls Dyp vlSEcyh gVkus dh fof/k%&

(i)            Vehicle dks level ground ij [kM+k djsaA

(ii)           Vehicle dks specific height ij mBk,aA

(iii)          Clutch linkage dss connection ds bell houring ds gVk,aA  

(iv)          Gear box dh flange ls proper shaft gVk,aA

(v)           Clutch housing vkSj gear box housing ds uV@cksYV dks <hyk dj gVk,aA  

(vi)          Flywheel ij cover dh position mark djsaA

(vii)         Flywheel ls pressure assembly ds lHkh bolt gVk,aA

(viii)        Clutch plate, pressure plate vkSj release bearing dks gVk,a vksj bls work bench ij inspection ds fy, j[ksaA

 

               Clutch plate dh oil leakage ds fy, tkap%&

(i)            Clutch plate ij oil leakage dh tkap djsaA

(ii)           Clutch plate dh vernier depth gauge ls thickness dh tkap djsa ;fn ;g permissible limit ls ckgj gS rks bls cny nsaA

(iii)          Clutch dh cover assembly dh tkap djsa ;fn blesa oil leakage fn[kkbZ ns rks gear box ;k crankshaft esa ls oil seal dks cny nsaA

(iv)          Clutch plate dks clutch shaft/input shaft ij j[kksA

(v)           Clutch plate ij dial gauge j[kksa vkSj Dyp plate dh distortion check djus ds fy, clutch plate dh distortion dh tkap djsaA

(vi)          Pointer dks clutch plate ds perpendicular set djus ij allow djsaA Clutch plate dks rotate djsa vkSj radial run out dh tkap djsaA ;fn ;g 2 mm ls vf/kd gS rks clutch plate dks replace djsaA

(vii)         Clutch shaft dh bend ds fy, tkap djsa vkSj clutch dh spline dh condition dh tkap djsaA

(viii)        Tersion spring dh breakage ;k slackness ds fy, tkap djsaA

(ix)          Clutch hub Ds internal spline vkSj clutch shaft ds external spline dh tkap djsaA bldk gap 0.05 mm ls vf/kd ugha gksuk pkfg,A

 

               Flywheel Function Surface dh tkap %&

(i)            Flywheel ds frictional surface dh ns[kdj tkap djsa ;fn ml ij circular lines ;k wear ikbZ tk, rks crankshaft ls flywheel dks gVk,aA

(ii)           Lathe machine ij flywheel ds surface dks ?kqek,aA

(iii)          Pivot bearing dh f?klkoV ds fy, tkap djsaA

(iv)          Ring gear ds teeth dh wear dh flywheel ij tkap djsa ;fn ikbZ tk, rks ring dks replace djsaA

 

               Pressure Plate:-

(i)            Pressure plate ds frictional surface ij circular lines ;k scratches gksrs gS ;fn pressure plate disterted gks rks spimming process dhft,A

(ii)           ;fn friction lining dh thickness c<+ tk, rks clutch plate vkSj pressure plate ds chp clearance dks maintain djsaA

 

               Diapharagm Spring:-

(i)            Diapharagm spring dh turn finger ds fy, tkap djsa vkSj ;fn bl ij crack gS rks bls cny nsaA

(ii)           Spring dh tension dh tkap djsaA

(iii)          Release bearing dh wear ds fy, tkap djsa vkSj ;fn ;g f?klk gqvk gks rks replace djsaA

(iv)          Release bearing supporting, fulculum vkSj shaft tkap djsaA

 

               Precautions:-

(i)            Parts dks misplace u djsaA

(ii)           Removed nut ;k bolts dks tray esa properly j[ksaA

 

               Clutch esa Troubleshooting process:-

a.            Clutch Slip:-       

(i) Clutch pedal dh frec play dk improper gksukA (ii) Clutch plate lining ij oil yxk gksuk pkfg,A (iii) Diapharagm spring dk detksj gksukA (iv) Disc dk wrapped gksuk] pressure plate ;k flywheel surface dk Hkh wrapper gksukA (v) Clutch dk vkokt djukA

(i) Clutch pedal dh setting dks adjust djsaA (ii) Lining dks cny ns] clutch plate  cny nsaA (iii) bls cny nsaA (iv) bls cny nsaA   (v) f?kls gq, Dyp release bearing dks cny nsa ;k crack clutch disc ;k hub dks cny nsaA

 

b.           Clutch Judder djuk %&

Case (i) detksj diapharagm (ii) input ;k clutch shaft ds spline spoil gks tkuk (iii) Clutch plate dk rusted gks tkukA (iv) Clutch disc dk VwVk gksukA (v) Clutch facing dj glazed gksukA

Remedy (i) cny nsaA (ii) cny nsaA (iii) Cable dks cny nsaA (iv) Disc dks cny nsaA (v) Disc dks cny nsaA

              

               Fill in the Blanks:-

(i)            In diapharagm clutch ……………… is used in place of coil spring (Mk;fQzke Dyp esa Dok;y fLaizx ds LFkku ij ------------------- dk iz;ksx fd;k tkrk gSA)

(ii)           Diapharagm acts as both ………………spring and release ………………… (Mk;Qzke ------------------- fLiazx vkSj fjfyt ---------------- nksauksa dh rjg dk;Z djrk gSA)

(iii)          The frictional surface of the pressure plate has ……………. Lines/scratches. (izS'kj IysV ds fQzD'kuy ry ij ------------------------ ykbusa LdzSp gksrs gS)

(iv)          Diapharagm clutch is small in ………….as compare to spring clutch and it transmits more…………….

Ans.       (i) Mk;kQzke fLiazx (diapharagm spring)

(ii)           Clamping (dySafiax fLiazax),  Release bearing (fjyht+ fc;fjax)

(iii)          Maintenance (esaVsUl)

(iv)          Circular (ldqZyj)

(v)           Size (vkdkj)