Part of Unit: Transmissions and Drivetrains
Lesson Plan Overview / Details
This lesson is to instruct the students in the proper method of setting the differential backlash. When students arrive in class they will see the objectives for the day on the white board. The students will receive instruction on the proper way to set up the dial indicator with a demonstration for them to model. Students will view a video to train them in the proper techniques for adjusting the differential to correct for improper backlash. I will go over tool selection; 3/8 dr. socket set, 3/8 dr. ratchet, spanner wrench, dial indicator, dial caliper, torque wrench, brass drift and pry bar.
- 1 class period
- 180 Minutes
California Career and Technical Education Standards
- T.C.C2.3 Select and use the appropriate measurement device(s) and use mathematical functi...
- T.C.C2.4 Know and understand the elements of precision measuring using standard and metri...
- T.C.C2.5 Use measurement scales, devices, and systems, such as dial indicators, micromete...
California Academic Content Standards (Reinforced)
Objectives and Goals
- Students will be able to set up a dial indicator and measure differential backlash
- Students will be able to perform necessary adjustments to correct differential backlash
- Students will use proper and safe shop procedures
Activities in this Lesson
- Clunk, Clunk - Hooks / Set
I will start a video from YouTube (see below) that shows what excessive backlash looks and sounds like. I will tap into prior experience by asking the students if they have ever witnessed this condition before.
- Show "n" Tell - Demo / Modeling
For the demonstration, the students will watch as I set up the dial indicator and demonstrate the proper way to check backlash. When we get a base reading, we can decide whether we need to adjust the ring gear into or away from the pinion to correct for proper backlash. When all adjustments are made, all fasteners will be torqued to specifications and we will recheck backlash to verify no movment occurred during tightening.
- "Diff"rent Strokes - Demo / Modeling
Students will pick any of the differentials available to perform the task. Students will then ID differential and aquire necessary technical information regarding adjustment of their particular differential, including all specifications needed. During this time I will be circulating around the shop area answering any necessary questions, giving insightful recommendations and pointing the students in the right direction.
- Assessment Types:
- Rubrics, Demonstrations, Observations,
- task sheet rubric.doc [ Download ] grading rubric for all shop task