Wheels And Tires

Question 1

How often must wheels and tires be checked?

Answer 1

Daily

Question 2

What is being checked on the tire?

Answer 2

Cuts
Low air pressure
Cracked rim
Loose lug nuts
Tread depth (wear bar)

If tread looks low call fire maintenance

Question 3

Where can you find the manufacturers pressure recommendation?

Answer 3

Cab door jam

Data plate behind drivers seat

Question 4

Completely closed eye is within what % of recommended pressure and equalized?

Answer 4

2%

Question 5

As the eye begins to open what % has the pressure dropped and what is this a sign of?

Answer 5

5-6%

A sign of a slow air leak

Question 6

When the eye is completely open what % has the pressure dropped and what should happen?

Answer 6

10%

Call maintenance immediately

Question 7

What is a tired worst enemy?

Answer 7

Under inflation

Question 8

What causes severe handling problems?

Answer 8

Under inflated tires

Question 9

What causes rapid tire wear?

Answer 9

Under inflated tires

Question 10

What may cause build up in heat causing tire blowout?

Answer 10

Under inflated tires

Question 11

What detracts from the tires ability to endure road shock?

Answer 11

Over inflated tires

Question 12

What may result in casing bead failures?

Answer 12

Over inflated tires

Question 13

What is the likely problem when tires exhibit groove cracking and rapid center wear?

Answer 13

Over inflated tires

Question 14

When should you check the tire pressure?

Answer 14

When the tire is cold

Question 15

When should you bleed the air from a hot tire?

Answer 15

Never

Question 16

Where is the maximum allowable tire pressure located?

Answer 16

On the tire sidewall

Question 17

What is being looked for while inspecting tires?

Answer 17

Cupping
Dry cracking
Cuts in the sidewall
Uneven wear
Cords showing

Question 18

What is being looked for while inspecting wheels?

Answer 18

• Loose or missing lug nuts

- Cracks on any surface of the wheel