5
36
Incorrect assemblies
5-11
WARNING Use of two-piece flange nuts on ball seat wheels, ball seat cap nuts on hub
piloted wheels or single-piece flange nuts in place of 2-piece flange nuts is dangerous.
Using the wrong wheel nuts can cause loss of torque, broken studs and cracked wheels,
conditions which can lead to serious injury or death.
Use only hardware designed specifically for each wheel type. See Section 5-2 pg. 26 for
proper hardware assemblies.
The following are examples of incorrect wheel assemblies.
Incorrect use of ball seat cap nut on hub piloted system.
Do not use ball seat cap nuts with hub piloted wheels.
Do not use two-piece flange nuts with stud located ball seat wheels.
Incorrect use of flange nut positioned on Alcoa ball seat wheel.
Do not use any flange nut on Alcoa aluminum ball seat wheels.
Little (if any) contact area
No positional location
WARNING
Hub piloted, Alcoa
aluminum wheel
Ball seat cap nut
Insufficient contact area
Insufficient contact area
Two-piece
flange nut
Stud located, ball seat
aluminum wheel