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TREK SERVICE INFORMATION August 2016
To Install The Seal Seats
1.
Clean all surfaces to be bonded (bottom bracket shell, seal seats) with alcohol wipes or
similar (Figure 14.25).
Figure 14.27. Inserting the bearing cups into the bottom
bracket shell
Figure 14.28. Greasing the bearings
Figure 14.25. Cleaning bonding surfaces with an alcohol
wipe
Figure 14.26. Applying LocTite primer to the outer step
of the bearing cups
2. Apply a thin film of LocTite Primer to the outer step of the bearings cups and the outer
shoulder of the bottom bracket shell (Figure 14.26). Allow the primer to evaporate
completely.
3. Apply LocTite 638 to the faced of the seal seat that contacts the bottom bracket shell.
4. Press the seal seat into the frame (Figure 14.27). If needed, tap lightly with a soft-faced
mallet.
Let the LocTite cure for at least 24 hours before inserting the bearings.
To Install The Non-Drive Side Bearings
1.
Insert a washer into the non-drive side seal seat.
2. Apply a liberal coat of grease to the contact surfaces of the bearing (Figure 14.28) and
the non-drive side seal seat (Figure 14.29).
