To replace the front seals on your Heritage, you'll have to pull the windshield and the nachelle off the front of your bike. Lift the bike off the ground and remove the front wheel and fender. Then loosen the pinch bolt on the lower triple tree and take the top cap nut off at the upper triple tree. Then slide the entire fork assembly out of the steering head. Take the top plug out of the upper fork tube. There will be a large spring under this plug. When you take the spring out, there should be a tapered end on the sping. Look closely and make sure you put it back in the correct direction.
Underneath the lower fork slider where the axle goes, there is an 8mm socket head bolt. This bolt takes a special "piloted hex key" to remove it but I have gotten them out using a "brand new hex key socket" and an air wrench. The hex key socket must be brand new since the depth of the hex key socket is so shallow.
Once you have the bolt out, you can pull the fork tube out of the lower slider. The seal is in the top of the slider. Remove the snap ring and pry out the seal, Notice the direction the seal is facing. After you assemble the fork tube assembly, pour in the appropiate amount of the correct oil for a "dry" rebuild.
Reassemble that tube and do the next one. Only do one tube at the time. Don't forget to torque the pinch bolt on the lower triple tree. 25-30 foot pounds. Reinstall nachele and windshield.
Good Luck
Steve
SOURCE: harley davidson flstc heritage softail 1997
The fork oil is a very specific job needing a manual and a special tool, I don't want to insult anyones mechanical knowledge but if you have never done it before, best to take somewhere else. Engine oil on the other hand is easy, the drain tube to any softail is on the right side by where the frame meets the swing arm, has somekind of plug in it. Start and run bike for a little while, long enough to get it warm but not hot. Remove fill plug and then remove plug in drain line. Using a peice of cardboard or something put in between filter and frame , directing the oil to your drain pan instead of where ever it goes. Put 1 qt oil back in (after everything is reinstalled) start the bike and make sure the oil light goes out, when it does shut bike off and fill to the point that when it is standing upright you get a little oil on the tip of your finger, over filling may result in loss of oil cap from pressure (been there)
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