First, remove the 2 Phillips head screws that secure the dust cap to the wheel center.
You may need to tap the dust cap with a screwdriver handle to break it loose. |
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Next, remove the upper collar. Using the 1/8" hex wrench, loosen the upper collar set screw.
You may need to wet the collar and shaft with vegetable oil if the collar is not easily rotated or removed.
After several applications of vegetable oil, use pliers to rotate the collar. Upward
pressure with rotation should remove the collar. |
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Next, remove the wheel from the wheel shaft or axle.
If corrosion is present, you may wish to put a few drops of vegetable oil on the shaft and bearing to help loosen. |
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The bearings are a flanged, press-fit bearing. To remove the bearings, insert a screwdriver through the hole in the bearing.
Gently tilt the screwdriver. Use a circular tilting motion to gradually lift the collar edge (flange). |
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Next insert the edge of a flat blade screwdriver under the flange, twist the screwdriver
slightly so the bearing begins to elevate. Repeat this in several positions around the bearing so the bearing moves up evenly.
If this is done gently, no damage should occur to the wheel. |
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Continue elevating the bearing until it comes free of the bearing hole.
If high, uneven force is used, you may bend the bearing seat. |
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Picture at right shows bearing hole after bearing has been removed. |
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Repeat this process with upper bearing in the center of the wheel. |
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Picture at right shows flat blade of screwdriver being used to elevate upper bearing flange. |
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To install the new bearings, place a bearing on the bearing hole and firmly press it in with your thumb.
You may need to rock it back and forth. |
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