Drive Belt Alignment and Tension Adjustments Explained

Discussion in 'Polaris Slingshot Photos/Videos' started by Samowens44, Dec 21, 2016.

  1. Samowens44

    Samowens44 Sam, Gail & Snazzy

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    I am preparing for when our Slingshots come back from the Swing Arm Recall. Belt Adjustments will be critical in being correct. I am encouraging all to be knowledgeable about their belt adjustments now and how they look when you get them back from recall. Belt alignment will be affected with the changing of the swing arm. Possibly tension. My video will help you to know what to look at and how a correct belt adjustment should look like. Take a look and mark your belt drive direction so you know your belt went on in the same direction. Important that it not be reversed.





    Here is the actual Drive Belt Alignment Tutorial Video showing all the adjustments.



    Good Luck
    Sam
     
    Last edited: Jan 12, 2017
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  2. MISTERZ06

    MISTERZ06 Well-Known Member

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    Hi Sam
    the Shop Manual is very confusing to do
    Drive Belt Alignment - very confusing
    i have removed the rear swing-arm and replaced the right angle drive
    i have readjusted the belt alignment on the rear drive pulley and it hard for me describe - easier to show
    i will work on explaining in terms of understanding

    ....................................... tom n carol
     
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  3. MISTERZ06

    MISTERZ06 Well-Known Member

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    Rear Swing Arm -
    How Align Drive Belt
    Place the vehicle on a level service chock front tires
    Raise the rear wheel off ground so tire can be rotated
    I say to loosen # 9-Pivot Shaft Nut - torque to 20lb-ft (27Nm)
    rotate wheel FORWARD - tighten or loosen Pivot Shaft #1 (22 mm Hex) 1/4 turn at a time to adjust where the drive belt tracks on sprocket
    screw Pivot Shaft # 1 - Clockwise to move belt closer to inside of the pulley or Counterclockwise to move belt farther away from inside the drive pulley - the Pivot Shaft has 22mm Hex(female) - to buy a 22mm Allen wrench is very expensive - i used a hex bolt - double nutted it - to turn the shaft

    Rear wheel alignment is satisfactory when the drive belt tracks closer to the inboard driven sprocket flange. Sprocket teeth should still be visible from both sides of the drive belt.
    When satisfied that belt is tracking Satisfactory,
    Torque Pivot Nut #9 to 195lb-ft
    SLINGSHOT Rear-Axle-Suspen.gif



    Right Angle Drive
    SLINGSHOT_GEAR_14SLING.gif
    hope this helps ........................... tom n carol
     

    Attached Files:

    Last edited: Dec 21, 2016
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  4. LargeCar

    LargeCar Well-Known Member

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    For the 22mm bolt I just used an old socket and ground flats on the OD of the socket to match the flats on the head. I used an impact socket because of the wall thickness, I felt better about the stability of the fit.


    LC
     
  5. MISTERZ06

    MISTERZ06 Well-Known Member

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    we kill two birds with one stone
    put two jack stands under rear chassis
    use a jack and wood to raise rear tire so that there is a load on it like when driving
    then we do belt tension and alignment
    raising it allows to rotate tire forward for alignment and more room for to adjust tension
    Shocks1.JPG

    ..................... tom n carol
     
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  6. Tripod

    Tripod Well-Known Member

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    IMG_3035.PNG
     
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  7. LargeCar

    LargeCar Well-Known Member

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    Now you show the 22mm wrench! When I was looking nobody had it under about 20 bucks. Had the old socket and grinder handy so I just made my own.


    LC
     
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  8. MISTERZ06

    MISTERZ06 Well-Known Member

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  9. Samowens44

    Samowens44 Sam, Gail & Snazzy

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    I saw in the Shop Manual the Torque on the Pivot Shaft was listed as 195 lbs. Now it did say to loosen for adjustment to 20 lbs. What do you show as the final torque for the Pivot shaft nut.
     
  10. MISTERZ06

    MISTERZ06 Well-Known Member

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    Yes Sam
    i worded it wrong
    * I Have EDITED MY ORIGINAL POST
    Here is what Service Manual says 2.26
    "Drive Belt Alignment Adjustment:
    1. place vehicle on a level surface & secure front wheels so they cannot spin.
    2. Raise rear wheel off the ground so the tire can rotate freely.
    3. Tighten the pivot shaft (22mm hex) until it seats against the bearing. (*i say it probably will be already seated to bearing, tighten gently just to be sure)
    4. Torque the Pivot Shaft Nut to specification. 20 lb-ft.
    5. Rotate the wheel FORWARD. Tighten or loosen Pivot Shaft 1/4 turn at a time to adjust where the drive belt tracks next to, but not on, the driven sprocket.
    6. Rear wheel alignment is satisfactory when the drive belt tracks closer to the inboard driven sprocket flange. Sprocket teeth should still be visible from both sides of the belt.
    7. Verify rear wheel rotates smoothly and freely without drag.
    8. If the drive belt is too far inboard, the belt will make noise during deceleration. I f the drive is too far outboard, the belt will make noise during acceleration or while under load.
    9. Refer to "Drive Belt Tension Adjustment", page 2.25 procedure to finish drive belt adjustment.
    NEXT Would Be
    #13- Torque Pivot Shaft 22mm Hex to 20 lb-ft
    14-Torque Pivot Shaft Nut to 195 lb-ft

    ***** evidently this 20 lb-ft on Pivot Nut, during adjustment is to make sure this is minimal load of shaft against bearings

    .................. tom n carol
     
    Last edited: Dec 21, 2016
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  11. Samowens44

    Samowens44 Sam, Gail & Snazzy

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    Thank you very much for the full details. I agree it is confusing to just read the instructions I see now there is a pivot shaft torque requirement and the lock nut has it's own 195 lb-ft requirement for the finish. I may soon create a video to show and describe these instructions for a clear understanding of what is required to adjust drive belt alignment and tension. You have helped greatly with your explaining of the instructions.
     
  12. Samowens44

    Samowens44 Sam, Gail & Snazzy

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    I sure like seeing a full size clear view of the Swing Arm and the Right Angle Drive. Thanks.
     
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