HUB 26
HUB ASSEMBLY
The following procedure explains how to change front and rear hub bearings
• Removal of bearing
a) Remove spigot by removing the 6 screws A;
b) push off drive flange by using two 6x1 screws set on thread B;
c) remove circlip C;
d) press off bearing from the upright;
e) push off retainer by means of two 6x1 screws set on thread B.
• Replacement of bearing
a) Press wheel bearing into the upright;
b) Fit circlip C;
c) Press the retainer into the wheel bearing;
d) Place spigot in position on the drive flange, fit A screws, washers and nuts and tighten to
41 Nm (Caution
: this value is for 12K screws only).
• Wheel stud removal
a) To reduce resistance to Loctite, heat wheel stud and retainer to 180°C;
b) Remove pin D, remove wheel stud.
• Wheel stud replacement
a) Remove pin D;
b) Clean and degrease retainer thread and wheel stud;
c) Spray degreaser to threaded area of retainer and wheel stud. Caution:
Don’t use petrol;
d) Apply LOCTITE 638
to wheel stud thread;
e) Screw wheel stud into retainer and tighten to 245 Nm by forcing on head T;
f) Drill wheel stud and insert pin D.
• Bearing assembly into hub replacement
a) Warm the hub to 100°C;
b) Fit the bearing assembly
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