Tire and Wheel Service Chapter 55 Page 796

Tire Info Placard *Located on the door pillar or the door as well as inside the owners manual. *Remember this info is for the original tire that came on the vehicle.

Proper Inflation of Tires

Tire Inspection Old school Use the depth gauge 3/32nds Minimum

Inspecting Tires for Wear

Tire Wear Unbalanced tires One-sided wear Under inflationOver inflation Normal tire

Tire Rotation Some tires are directional; they are designed to turn in one direction only. They cannot be moved from one side of the vehicle to the other, otherwise they will rotate against the direction of their design. Some tires are directional; they are designed to turn in one direction only. They cannot be moved from one side of the vehicle to the other, otherwise they will rotate against the direction of their design. Other tires are asymmetric; the tread differs from inside to outside. Asymmetric tires must be mounted on the rim correctly. Other tires are asymmetric; the tread differs from inside to outside. Asymmetric tires must be mounted on the rim correctly. The majority of tires can be mounted and run in either direction. The majority of tires can be mounted and run in either direction. Remember to adjust air pressure on each tire to recommended levels. Remember to adjust air pressure on each tire to recommended levels.

This is most common

Rotating Tires

Torquing Lug Nuts Torque sticks are use with impact wrench You’ll love these Finding the tool can be a nightmare

Tire Changing Process Be glad you don’t have to do this.

The Controls Air and blast air (this is a two stage pedal) Clamp Bead Breaker Turn Table Down=clockwise Up=Counter-clockwise Bead Lube Arm Bead Breaker

Mark the Offending Spot

Remove Old Weights and Mark Rim- to-Tire Location

Remove Valve Cap and Core

Unseat Beads

Clamp Wheel and Set Arm Adjustments

Lube the Upper Bead Area

Remove Upper Bead from Wheel

Remove Lower Bead from Wheel

Clean Rim and Tire

Valve Stem R&R

Repair Tire Mark the offending object or hole (you can submerge the wheel in the tire tank to find small leaks). Mark the offending object or hole (you can submerge the wheel in the tire tank to find small leaks). Remove tire from rim Remove tire from rim Oversize the hole with the auger bit in the drill Oversize the hole with the auger bit in the drill Smooth out interior near hole Smooth out interior near hole Prep plug with silicone Prep plug with silicone Gently pull plug up through the hole until it dimples Gently pull plug up through the hole until it dimples Remount tire Remount tire Check for leaks Check for leaks Trim the plug Trim the plug

Oversize the Hole for the Plug

Prep the Plug

Push Plug from Inside and Pull Through with Pliers (smoothly)

Lube Both Beads

Remount Tire to Original Position (Take care to use the “valley” of the rim)

Line Up Tire Spot Indicator (new) or Replace it to its Original Position

Inflate Tire Over Recommended PSI to Seat the Beads (50psi)

Replace Valve Core and Check for Proper Pressure *2-3 pounds under recommended pressure is good *Look at the tire placard or in owners manual if original tire size is on the vehicle *You will loose some air when replacing the core *Check it for leaking

Trim the Plug if There is No Leaking Check with Tire Lube

Replace Valve Cap and Remove Wheel form Machine

Balance Wheel Confirm air pressure Confirm air pressure Mount wheel using proper mounting cone Mount wheel using proper mounting cone Take the three main measurements and program the computer Take the three main measurements and program the computer Choose the placement of wheel weights Choose the placement of wheel weights Hammer or stick weights Hammer or stick weights Confirm work with another spin Confirm work with another spin

Check Tire Pressure

Carefully Mount Tire

Balancing Wheels

Your Job. Complete chapter Questions 1-10 (review) and 1-10 (ASE-style). Page Complete chapter Questions 1-10 (review) and 1-10 (ASE-style). Page Write on a separate paper and write out the complete question and your answer. ( do not write the other answer options). Write on a separate paper and write out the complete question and your answer. ( do not write the other answer options). Complete the chapter worksheet (I will give it out). You may write on it. Complete the chapter worksheet (I will give it out). You may write on it. File all items in your note book. File all items in your note book. Notebooks will be graded in the future. Notebooks will be graded in the future.