Grade 12 - Chasis

It is expected that students will:

identify, describe, and explain the function of brake components and a variety of systems
inspect brake, suspension, and steering systems
perform wheel and tire inspection
maintain or repair tires
maintain or repair at least one of the following systems:
- brakes
- suspension
- steering

Following teacher demonstration or video screening, have students perform the following two tasks:
- Inspect steering and suspension components, record the results, and compare them to manufacturer's specifications (e.g., tie rod, ball joints, shocks, bushings).
- Inspect brake components, record the results, and compare them to manufacturer's specifications (e.g., rotor thickness, drum diameter, brake lines, brake wear, lining thickness).
Using results from inspecting brakes or the steering and suspension, have students service or repair these components.
Demonstrate wheel alignment angles and methods of performing wheel alignment. Have students measure the toe on a vehicle and compare results to specifications.

Observe groups of students do a pre-alignment check, and note to what extent they followed correct shop procedures:
- use of all safety equipment
- proper jacking and blocking procedure
- reference to manuals as required
- use of appropriate tools
- items handled safely and cleaned properly
- wheels torqued to specifications
- all information recorded on the work order
- vehicle in clean condition upon completion of servicing
- customer informed of results and recommendations.
As students perform a brake inspection and repair, note to what extent they:
- identify brake type and use appropriate servicing procedure
- handle and clean brake parts in a safe and acceptable manner
- measure components for wear
- explain the operation of automatic adjusters
- identify new parts, if required
- correctly turn a drum or disc
- follow correct re-assembly procedures
- assure parking brake is operable
- bleed the system, if required.
While students do a wheel and tire inspection, note to what extent they follow correct procedures with respect to:
- operation of tire machine
- tire repair
- wheel balancing
- application of correct torque on installation

Print Materials

Video

Revised: December 2001