46 Troubleshooting
8.3 Changing the muffler
1. Use a screwdriver to unscrew the cover plate
(2 cross-head screws).
2. Remove the old muffler.
3. Insert a new muffler.
4. Refit the cover plate. Make sure that the pad
stuck to the cover plate is pressing against the
muffler.
5. Perform a functional check (see “7.2 Performing
the leak check” on page 38).