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Under Car Under Car Inspection and Inspection and
ServiceServiceChapter 14Chapter 14
Page 169Page 169
Under Car InspectionUnder Car Inspection
Tire InspectionTire Inspection
Tire Wear IndicatorsTire Wear Indicators
When the tread wears to this point, the tire needs replacing
Measuring Tire PressureMeasuring Tire Pressure
Brake System ChecksBrake System Checks
Disc Brakes Disk Pad Thickness Comparison
Drum Brakes Drum Brake Lining Thickness Comparison
Disk Brake CheckDisk Brake Check
Items to Check (disk)Items to Check (disk)
Check Lines forChecks, Chaffs,and Bulging
Check the caliper and mount for tightness
Check the condition of the lug studs---- and axle nut for tightness
Check the rotorFor warpage, cracks,and roughness
Drum Brake CheckDrum Brake Check
Items to Check (drum)Items to Check (drum)
Check LiningThickness
All springs for “spring”
Check anchoring clips
Check WheelCylinder forLeakage
After checking the brake pads, replace After checking the brake pads, replace the road wheel but don't put lug nuts the road wheel but don't put lug nuts into the socket of the impact wrench into the socket of the impact wrench and power the lug nuts on; this and power the lug nuts on; this practice can lead to the wheel nuts or practice can lead to the wheel nuts or studs going on cross-threaded. studs going on cross-threaded.
When inspecting the caliper be very When inspecting the caliper be very careful because the caliper may be hot careful because the caliper may be hot if the car has been driven recently. if the car has been driven recently.
Warning
Lubricating ChassisLubricating Chassis
Grease Gun and FittingsGrease Gun and Fittings
Sometimes called “Zerk” fittingsGuns will have flexible hoses too
“Grease Points”
Suspension ChecksSuspension Checks
See Anything Wrong See Anything Wrong Here?Here?
Broken Shackle
*Sometime things blend in and are tough to spot!
Steering SystemSteering System
Steering Parts to CheckSteering Parts to Check
Ball Joint
Pitman Arm
Center Link
Tie Rod End
Idler Arm
Check All Items-Customers Check All Items-Customers Can’t Get Under Their Vehicles Can’t Get Under Their Vehicles
in Most Casesin Most Cases
Checking oil levels
Make sure you are thorough
There are many things to check-Don’t forget to record things that need attention
Check CV Boots
Hanger
Exhaust Driveline and Exhaust Driveline and Shock/StrutsShock/Struts
Broken CV Joint(constant velocity)
Shocks and Struts
Check U-Joints
Checking DriveshaftChecking Driveshaft
Items to check:Items to check: Ensure all rubber bellows or boots that are fitted Ensure all rubber bellows or boots that are fitted
to steering components are in good condition so to steering components are in good condition so that they do not allow contaminants to enter. that they do not allow contaminants to enter.
Have an assistant help you when you are moving Have an assistant help you when you are moving the steering system and checking for wear. the steering system and checking for wear.
This is a systematic visual inspection of all major This is a systematic visual inspection of all major vehicle systems. Be prepared to note down any vehicle systems. Be prepared to note down any faults to discuss later with your supervisor.faults to discuss later with your supervisor.
*Consider using head protection.*Consider using head protection.
Items Cont.Items Cont. The steering area inspection includes tie-The steering area inspection includes tie-
rods, tire and wheel assembly, suspension rods, tire and wheel assembly, suspension bushes, shock absorbers and brake hoses. bushes, shock absorbers and brake hoses.
In the transmission area, you'll be looking In the transmission area, you'll be looking for fluid leaks, tightening mounting bolts, for fluid leaks, tightening mounting bolts, and inspecting the clutch mechanism or and inspecting the clutch mechanism or shift linkage.shift linkage.
Clamps and bolts may need tightening on Clamps and bolts may need tightening on the exhaust system and manifold pipe. the exhaust system and manifold pipe. You'll also be looking for signs of exhaust You'll also be looking for signs of exhaust leaks, corrosion or deterioration.leaks, corrosion or deterioration.
Items Cont.Items Cont. You'll be checking for any excess You'll be checking for any excess
movement in driveline shafts. movement in driveline shafts. Look for leaks around the differential Look for leaks around the differential
and check the rear shock absorbers or and check the rear shock absorbers or leaf springs. leaf springs.
The fuel tank must be secure and fuel The fuel tank must be secure and fuel lines inspected for damage or abrasion.lines inspected for damage or abrasion.
Fuel Filter ChangeFuel Filter Change
•Compare old with the new •Very Flammable be careful•Release fuel pressure
•Keys out of ignition•Pull fuel pump fuse
•Catch any gas that drips•Directional important
Fuel Filter ChangeFuel Filter Change
Adjusting Parking Brake Adjusting Parking Brake CableCable
Adjusting Parking Brake Adjusting Parking Brake LeverLever
Adjusting Parking BrakeAdjusting Parking Brake
Your Job.Your Job.
Complete chapter Questions 1-10 Complete chapter Questions 1-10 (review) and 1-10 (ASE-style). Page 179(review) and 1-10 (ASE-style). Page 179
Write on a separate paper and write Write on a separate paper and write out the complete question and your out the complete question and your answer. ( do not write the other answer answer. ( do not write the other answer options). options).
Complete the chapter worksheet (I will Complete the chapter worksheet (I will give it out). You may write on it. 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.