Husqvarna TC 450 Workshop Manual page 351

"KIT" ASSEMBLING INSTRUCTIONS
Reassemble: clutch disc housing (3), grooved washer (4), hub (5), lock washer
(6) and fastening nut (7) (27 mm socket and tool "A" code no. 8000 79015; tighten
at 75 Nm-7,5 kgm-55 ft/lb). Remember to bend locking tab over nut when tight.
Reassemble clutch discs (8), clutch control cap (9), pressure plate (10) and
springs (11).
Tight the clutch springs screws (12) whilst following a cross-over pattern and in
steps (5 mm allen wrench: 8 Nm-0,8 Kgm- 5.8 ft/lb).
Part. N. 8000 H1344 (10-2009) O.21