Installing The Rotor; Installing The Piston - Husqvarna FS 450 2017 Repair Manual

17 ENGINE
17.5.22
17.5.23
234

Installing the rotor

Installing the piston

310076-10
310077-10
310078-10
-
Mount the woodruff key.
-
Mount the rotor.
O
-
Mount and tighten nut
Guideline
Nut, rotor M12x1
-
Move the joints of the compression ring and oil scraper ring
so they are offset by 180
-
Place the oiled piston on the cylinder.
-
Clamp the piston rings together using the special tool.
I Piston ring compressor (60029015000)
-
Tap lightly on the piston ring compressor from the top with a
plastic hammer so that it lies flush with the cylinder.
✓ The special tool must press the piston rings together
properly and lie flush with the cylinder.
-
Drive the piston into the cylinder by striking it carefully with
the hammer handle.
✓ The piston rings should not catch or they will be dam­
aged.
with the spring washer.
60 Nm (44.3 lbf ft)
Thread, oiled with
engine oil/cone
degreased
° .
(8 p. 299)