7.  Pull out 5th speed gear and4th speed gear by 

special tool “bearing puller“. 

 

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8.  Take out 4th speed gear and 3rd speed gear 

bushing. 

 

FE03-0117b

9.  Pull out 3rd speed gear by special tool bearing 

puller. 

Notes :Gap is too small between 3rd speed gear and 
2nd speed gear, May separately pull out 3rd speed 
gear from a distance, 

 

FE03-0118b

 

1231

 
 

 

10.  Take out 2nd speed gear, bearing and bearing 

retaining ring. 

Notes : the needle bearing has opens to directly take 
out 

！

 

 

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11.  Take out 1st/2nd speed synchronizer snap spring 

by snap ring pliers 

 

FE03-0120b

12.  Take out 1st/2nd speed synchronizer 

Notes :distance between gear bushing and shift 
fork 0,35mm( 13,

≦

≦

780 in×10

-3

) 

 

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13.  Take out 1 speed gear 

 

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14.  Take out 1st speed gear needle bearing. 

Notes: the needle bearing has opens to, can not 
dismantle by big force, otherwire may cause this 
bearing! 

 

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15. Completed final status after dismantle main 

shaft. 

Notes : Worn condition of main shaft:Min,diameter is 
33,985mm(1337,989 in×10

-3

)main bearing radial 

runout 0,03mm( 1,181 in×

≦

≦

10

-3

) 

 

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1233

 
 

 

Installation procedure:: 

1.  Install 1st speed gear needle bearing. 

 

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2.  Install the 1st speed gear. 

 

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3. Install1st/2nd 

speed 

synchronizer. 

Notes: gear surface face the rear-end of 
transmission  

4.  Install1st/2nd speed synchronizer snap spring . 

 

FE03-0127b

 

1234