Husqvarna TC 65 Owner's Manual page 73

13 WHEELS, TIRES
–
Strike each spoke briefly using a screwdriver blade.
Info
The frequency of the sound depends on the spoke length and spoke
diameter.
If you hear different tone frequencies from different spokes of equal length
and diameter, this is an indication of different spoke tensions.
You should hear a high note.
400694-01
» If the spoke tension differs:
–
Correct the spoke tension.
–
Check the spoke torque.
Guideline
Spoke nipple
Torque wrench with various accessories in set (58429094000)
M3.5 3 Nm (2.2 lbf ft)
71