BLUF: When installing the wheel assemblies on the SATS, remember it’s shallow side IN for the FRONT wheels and shallow side OUT for the REAR.
Mechanics,
In our story on Pages 22-23 of
PS 777 (Aug 17), we told you how to correctly position the wheel assemblies on the front and rear studs because the mounting instructions were incomplete in TM 1-1740-221-13&P (Feb 15). Since then, the TM’s been updated. However, make a note that the
NOTE in the removal procedure section of work package (WP) 0091 should actually be in the installation task (a DA Form 2028 has been submitted to correct the placement of the TM note).
Installed wrong, front wheel assembly rubs
against chassis during turns
Reinforcing the change to the TM, Aviation Maintenance Information Maintenance (MIM), AGSE-21-MIM-02 clearly states that the front wheels are to be installed with the shallow side of the rim against the hub, while the rear wheels are to be installed with the deep side of the rim against the hub. If they aren’t installed this way, the deep side of the rim will cause the front tires to rub against the chassis. Incorrect installation could also lead to mounting failure, and you might lose control of the vehicle.
Install front wheels with deep side facing out
and the shallow side against hub
Front and rear wheels installed correctly
Remember, it’s shallow side IN for the FRONT wheels and shallow side OUT for the REAR!