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Pt1663 a30c slipping in reverse 1st

Discussion in 'Other Earthmoving Equipment' started by rmllarue91, Nov 4, 2019.

  1. rmllarue91

    rmllarue91 Senior Member

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    Hey hef got a Volvo trans with valve body out. But I'm not finding what I thought. By looking at flow chart it uses k2 ( clutch 2 ) and brake 5 both used in either reverse 2 or forward 1 and they are strong. So if I have the right info and interpreting info correctly the trans its self should be good.? Any thoughts welcome. Trans oil is used but overall clean no debris.
     
  2. sfrs4

    sfrs4 Well-Known Member

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    Great Britian
    Just picked this from prosis, says neither K1 or K2 are used, but strangely it also says in another section that S8 is for reverse but its not shown on the picture?


    S8 Solenoid for reverse gear
    S8 applies and releases clutch K2. Application takes place when S8 is not energised. Solenoid S8 is energised (clutch 2 is released) in all forward gears apart from 6th gear. When 6th gear forward is engaged, clutches 1 and 2 are applied. This is achieved by energising S7, but not S8.
     

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  3. rmllarue91

    rmllarue91 Senior Member

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    I was thinking miss print based on other Volvo trans info I found I looked a b and d models all use k2 for reverse ?
     
  4. Mark250

    Mark250 Senior Member

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    Hi, K2 is used in reverse but the S8 solenoid is not active. K2 clutch engagement is via relay RV8 as shown below
    upload_2019-11-5_10-18-12.png
     
  5. Mark250

    Mark250 Senior Member

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    victoria,Australia
    have you checked trans pressures
    upload_2019-11-5_10-44-44.png
    upload_2019-11-5_10-45-50.png
    upload_2019-11-5_10-47-11.png