Specifications
OCTE SAFEdoc 
TRANS 
Safety Quiz – Tire Changing Machine 
1. The personal protective equipment to wear when using a tire machine includes 
__________________________ and ________________________. 
1.  List 3 safety precautions that must be followed when using any pneumatic (air) controlled or 
operated device. 
_____________________,________________________,___________________________. 
2.  How can a tire seriously injure someone who is working on it? 
_________________________________________________________________________. 
3.  When using the tire machine to break the bead of the tire away from the rim, the machine 
provides a force of ______________psi on the bead. 
4.  List 3 “pinch points” that are capable of inflicting injury if the machine is used incorrectly. 
These are: 
•  __________________________________________________________________. 
•  __________________________________________________________________. 
•  __________________________________________________________________. 
5.  Several precautions are necessary to protect the tire and rim from being damaged during 
removal or installation. Two of these include ________________________________ and 
_____________________________. 
6.  Describe how the “drop centre” of a rim is important in tire installation. 
____________________________________________________________________. 
7.  The maximum inflation pressure for the tire you are working on is __________psi. 
8.  The size of the tire you are working on is P- _____________________________. 
9.  Over-inflation of the tire could result in _____________________ and _________________. 
Transportation SAFEdoc  Page 54 










