Inspect steering shaft universal-joint(s), flexible coupling(s), collapsible column, lock cylinder mechanism, and steering wheel; determine necessary action

Lesson Plan for

AUT 184-185/AUT 291

Automotive Service Technology Section B/Automotive Special Problems

Course HS Title: / Automobile Service Technology/Special Problems / Program:
KCTCS Courses included in HS Title: (Lesson is prepared for course highlighted.)
KCTCS Course No. / KCTCS Course Title
Introduction/Context / This lesson will instruct students on how to properly inspect steering shaft universal-joint(s), flexible coupling(s), collapsible column, lock cylinder mechanism, and steering wheel; determine necessary action on some late model vehicles with power steering, and students need to be able to diagnose problems in the system to be sure that a vehicle is properly repaired before returning it to a customer.
Prepared By / School / Date:
Grade Level / No. Students / No.IEP's: / Lesson Length:
Task
Inspect steering shaft universal-joint(s), flexible coupling(s), collapsible column, lock cylinder mechanism, and steering wheel; perform necessary action.
No. / Objective
1 / Given the proper tools and instructions from a vehicle manufacturers shop manual, Automotive Technology Textbook, or vehicle computer software program, students will be able to Inspect steering shaft universal-joint(s), flexible coupling(s), collapsible column, lock cylinder mechanism, and steering wheel; determine necessary action and pass a written exam on the task with 100% accuracy by the end of the course.

Connections

Skills Standards:
OH 001
OH 002
OH 003
OD 002
OD 003
OD 005
Common Core Technical Standards:
TD-SYS-2
New Common Core Standards:
RST 11-12.2
RST 11-12 3

INSTRUCTIONAL MATERIALS/TECHNOLOGY
Textbooks and Workbooks

Author / Title/ISBN No. / Edition / Publisher / Pages
Erjavec, Wheeler / Automotive Technology / Delmar
Johanson Stockel / Auto Suspension & Steering Technology / Goodheart/Wilcox
Don Knowles / Automotive Suspension & Steering Systems (Todays Technician) 2nd Edition / Delmar


Content/Presentation/Demonstration Outline

Inform students that before working around the steering wheel to first disconnect the negative battery cable and wait five minutes before striking, hitting , pulling, removing the air bag on the steering wheel. Failure to do this may result in accidental air bag deployment. Always follow the manufacturer’s service precautions and recommendations when working with an air bag system.
The steering wheel is bolted to a splined shaft in the steering column and allows the driver to produce the force necessary to turn the steering gear. The steering column and shaft are sectional and are designed to collapse in the event of an accident. Some collapsible columns have plastic pins that shear off in the column jacket, gearshift tube, and steering shaft if the driver hits the steering wheel in a frontal collision. This shearing action of the plastic pins allows the column to collapse away from the driver. When inspecting the steering wheel and column replace if bent or collapsed.
Steering forces are transmitted from the steering column to an intermediate shaft and a flexible coupling. The flexible coupling is also called a rag joint or steering coupling disc and is used to prevent the transfer of noise, vibration, and harshness from the steering components up through the steering column to the driver. A defective rag joint or intermediate shaft will cause the steering to be stiff when going forward but, erratic on turns.
The cylinder mechanism is located at the top of the steering column and serves as a lock and if damaged needs to be replaced. Typically cylinder lock mechanisms will wear out and allow movement without the key inserted. On some vehicles the car may not start.
Instruct students that many steering systems also use one or more u-joints between the steering column (part of the intermediate shaft) and the steering gear. Defective u-joint may cause stiff driving when going straight but the car may dart back and forth when the steering wheel is turned slightly. A worn steering shaft universal joint can also cause excessive wheel kickback and play. Have students check the steering column and components on vehicles in the shop.
Instruct students to check the vehicles shop manual to be sure they know if there are any unique items about the system they are working on. This will help to insure a proper repair.


Applications/Practice

1 / Refer to content


Evaluation and feedback Prior to Testing or Lab Work

1 / Assessment Plan Formative: Objective 1. / Formative assessment / Instructor will observe students as they practice the procedure to assure correct procedure and safety practices are being followed. A checklist will be utilized to chart student progress on the task. Questioning techniques will be utilized as necessary to demonstrate student comprehension / Adaptations and/or accommodations for special needs students will be added if required.


STUDENT ASSESSMENT:(Assess student progress with performance criteria.)

1 / Assessment Plan Summative: Objective 1 / Summative assessment / written test questions on stated objective / adaptation and / or accommodations for special needs students will be added if required.
IMPACT--Reflection/Analysis of Teaching and Learning: (How did students progress in relation to the state objectives? Was the instruction successful? Analyze samples of student work, particularly that which is unsatisfactory, for the purpose of planning further instruction.)
REFINEMENT--Lesson Extension and Follow-up: (To be filled in as the lesson is modified during initial planning and/or during the teaching learning process.)