Tire machine Part 1

Tire machine Part 1

Parts of the machine

Safety of the tire machine

• Wearing safety glasses

• Only one person to Operate the machine at a time.

• If you are unsure, ALWAYS ASK!

How to Prepare?

• Having tires off the car

• Having tires next to machine

• Start by:

Multiple Choice

What should be the first step after having the tires off the car?

• place the shovel head on the sidewall

• balance the tire

• break the bead

• Let the air out

First things first.

• Remove the valve core

• Place where you are going to remember it

The valve stem!

See parts to the right.

-Cap- Protects the core from elements

- Core- Keeps air in tire when not adding/depleting air.

- Body- Valve stem housing/assembly.

Multiple Choice

What is pictured here?

• Cap

• Valve core

• valve body

• Alternator

Open Ended

What is the primary job of the valve core?

Removing old wheel weights

-Important to remove old weights

-Could damage rim if left in place

-Use appropriate tools to remove.

Wheel Weight Hammer/removal Tool.

Here is an example of what a wheel weight removal tool looks like.

Another type Wheel weight hammer

Removing Sticky weights

There is a special wedge type tool for removing sticky weights.

We use sticky weights for the purpose of not hammering weights on the wheel.

Multiple Choice

After letting out the air you have to remove what?

• tire bead

• weights

• valve stem

• belts

Multiple Choice

What is this part?

• Mounting head

• turn table

• air chuck

• shovel

Shovel

The shovel allows technician to press the bead off the rim.

Open Ended

When using the shovel to break the bead, why is it important not to have the valve stem in line with the shovel head?

Tire Pressure Monitor Sensor or TPMS

Small computer that sends a radio frequency signal to computer

If pressure falls below threshold then tire light will come on.

Multiple Choice

What symbol is this?

• tire light

• horse shoe light

• time to mow lawn

• overheating

Tire pressure warning lamp

• Light will come on at a specific pressure set in computer

• When pressure decreases it will give the driver a warning

After breaking front bead

• Flip tire around

• Break bead on rear of rim

Multiple Choice

When tire is flipped and breaking rear bead what precaution should you make sure of?

• make sure car is on locks

• valve stem position

• valve core is installed

• Adjust the shovel

After place tire/rim where?

• Placing rim on turn table

• Now ready to start dismounting

• Activate clamp!

Multiple Choice

What part is seen here?

• pressure relief valve

• swing arm

• shovel

• tire mounting head

This is the mounting head

This part of the machine is responsible for removing and installing tire beads

Come in plastic and metal

Placing the mount head on rim

- Pull mount head down

-Push against rim and down against rim

-Lock swing arm

-Adjust swing arm

Lubricate the bead

• Tire to be removed without damaging the bead

• Helps the machine rotate easier

Top Bead removal

-Position valve stem under tire mounting head

-Insert Crowbar and pry up and over

-Leave you palm and fingers flat

-Press the rotate turntable pedal (on right)

Bottom Bead Removal

-Using the prybar slide it down and put behind the bead

-Pry tire up and over as seen to the right

-Take note about the valve stem position!

-Press rotate pedal

Open Ended

Why position the valve stem right under the head for dismounting?

Multiple Choice

All of the following are reasons we lubricate the bead of the tire during dismounting process EXCEPT:

• to make it easier for machine to rotate while taking the tire off

• to make sure the bead does not get damaged

• to prevent air leakage

• to prevent the bead from tearing.