Warning! Do not interchange the stems, they have internal differences. The left cartridge (2) has a slot at the bottom, whereas the right one (1) has a slot at the top.
Note. The operations described below are valid for both stems.
Drain the fork oil.
Place the fork stem on a work table in upright position.
Fit the special tool.
- Specific tooling: AP8140147 Spacer tool
With the help of a second operator:
- Hold the sleeve cap firmly.
- Push the special tool down.
- Take out the Seeger ring.
With the help of a second operator:
Insert the special tool between the nut and the preloading pipe.
- Specific tooling: AP8140148 Spacer-pumping element separating plate
Loosen the nut.
Remove the sleeve cap.
Slide off the preloading pipe together with the spring centring.
Be careful not to damage the fork stem when placing it in horizontal position in a vice and using the appropriate protections.
- Specific tooling: AP8140149 Protection for fitting operations
Unscrew and remove the bottom screw and collect the special washer.
Slide off the pumping member together with the spring.
Remove the dust guard using a screwdriver as a lever.
Remove the Seeger ring from inside the sleeve with the aid of a screwdriver.
Caution! Do not damage the stem during the operation.
Slide off the stem forcefully.
If necessary, remove the sliding bushing, guide bushing, ring, oil seal, Seeger ring and dust guard from the stem.
See also specifications for this operation in this chapters: handlebar, front fork, steering.