Husqvarna 2009 TE 310 Workshop Manual page 75

GENERAL OPERATIONS
3) TE, TC, TXC: using an 8 mm T-shaped spanner on the outside and a 10 mm
T-shaped spanner on the inside, remove the locking screw (1) of the muffler (4).
1
Remove the spring (2) and with an 8 mm T-shaped spanner remove the screw
(3); then pull out the muffler (4).
4
2
3
4
Part. N. 8000 H0364 (09-2008) E.7