Husqvarna TC 250 2012 Specifications - Operation - Maintenance page 76

REMOVING THE REAR WHEEL
Unscrew the nut (1) of the wheel pin (3) and extract it. It is
not necessary to unloose the chain adjusters (2); in this way,
the chain tension will remain unchanged after the reassembly.
Extract the complete rear wheel, by taking care of the spacers
located at the hub sides.
To reassemble, reverse the above procedure remembering to
insert the disc into the caliper.
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EN - 34 SPECIFICATIONS - OPERATION - MAINTENANCE
NOTES
Do not operate the rear brake pedal when the wheel has been
removed; this causes the caliper piston to move outwards.
After removal, lay down the wheel with brake disc on top.
After reassembly, pump the brake control pedal until the pads
are against the brake disc.
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