4
34
Incorrect
assemblies
4-12
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 injury or death.
Use only hardware designed specifically for each wheel type. See 4-2,
page 24 for proper hardware assemblies.
The following are examples of incorrect wheel assemblies.
Incorrect use of ball seat cap nut.
Do not use ball seat cap nuts with hub piloted wheels.
Incorrect use of two-piece flange nut.
Do not use two-piece flange nuts with ball seat wheels.
Incorrect use of one-piece flange nut positioned on Alcoa ball seat wheel.
Do not use one-piece flange nut on ball seat wheels.
Little (if any) contact area
No positional location
WARNING
Stud located, ball
seat aluminum wheel
Two-piece
flange nut
Insufficient contact area
Hub piloted, Alcoa
aluminum wheel
Ball seat cap nut
Insufficient contact area