Tire Area Circle Check

Acronym for checking the wheel area.

TBS

What does TBS stand for?

Tires, brakes, and suspension/steering

Acronym for checking the tires.

ICD

What does ICD stand for?

Inflation, condition, and depth

What psi should all tires be inflated to?

100 psi

What should you do when mentioning psi of tires?

Offer to check with a gauge

Every tire has a _____ ____ with a ___

Valve stem, cap

The valve stem should be what?

Accessible

The valve stem cap should be what?

Secure

Check the ____ of the tire.

Condition

The tire cannot have:

Cracks, gouging, bulging, visible sidewall/canvas

The front tires cannot be:

Retreaded or regrooved

Rear tires must be:

The same diameter

Acceptable tread depth of the front tires:

4/32

Acceptable tread depth of the rear tires:

2/32

The wear should be ____ across the tire

Even

What should you do when mentioning tread depth?

Offer to check with a gauge

The rim must:

Be one solid piece and have no cracks nor welds

The bolt holes must not be:

Oblong

The axle seal must not be:

Leaking oil

The lug nuts have:

Decorative covers

The lug nuts must be:

Present, finger-tight, free of rust/cracks

The studs must not be:

Missing, cracked, or worn

What are the two lines heading to the brake chamber?

The air line (thick) and the ABS line (thin)

The brake lines must not be:

Frayed or cracked

The brake lines must be:

Connected with proper couplings and fittings

The brake drum and pad must be:

Free of contamination, oil, grease, and debris

The leaf spring must not be:

Missing, shifted, or cracked

The air bag must be:

Fully inflated, free of rips or tears

The shock absorber must be:

Full of oil and securely attached to the frame

The shock absorber must not be:

Leaking

What is not present on the trolley?

Coil springs

The mounting and u-bolts for the suspension must not be:

Missing, shifted, or cracked

The frame must not be:

Cracked

The frame (members) must be:

Free of holes

The steering box must be:

Secure and free of leaks

The steering hoses must be:

Connected with proper fittings and free of leaks

What are the three large parts of the steering system?

Linkage, arms, and rods

The LARs must not be:

Cracked, worn, or hanging

What are the LARs connected with?

Nuts, bolts, and cotter pins

The nuts, bolts, and cotter pins must not be:

Missing, loose, or worn