E. Vehicle systems knowledge (includes hybrid, alternative fuel vehicles.)
Identify Body Repair and Refinishing Meterial And Supplies.
Paint, basscoats, sealers, primer, primer-surfacer, clearcoats, additives, hardeners, adhesion promoter, activators, mica costs, tinted primers and other material on spray gun are considered paint related materials Tack rags, solvents masking paper, tape polyethylene car covers, sprayabke masking agents are too. Body material are plastic filler, sandpaper material, caulks, sealers, undercoat, disposable files, drill supplies, rivets, weld supplies, sealant, rags disposable dust masks, respirator cartriges and protective gear.
Restraint System (idenitify components)
Passive restraints such as lap and shoulder belts should be inspected for signs of wear or deterioation. Active restraints, such as belt that engage with the operation of the vehicle. Supplement restraint systems (srs) include driver and passsnger air bags, side impact air bags, and seatbelts. Air bag components include labeling and reel which i need to be familar with.
Indentify component function.
To heat the paasanger compartment, engine coolant is pumped into the heater core. The blower motor blows outside air over the heater core, and the hot engine coolant warns the air flowing into the passanger compartment. The A/C system operates in same way Liquid refrigerant is metered into the evaporator, where warm air blown through the evaporator by the blower motor causes the liquid refrigerants to change into a vapor, absorbing heat and, in turn cooling the passanger compartment.
Indentify components function.
Vapor canister, is often damaged in a collision. It contains charcoal granules that absorb fuel vapors. You must differeniate between the pressure and return lines on a fuel system. The sensors installed into the example system are oxygen sensors and are part of the engine management control.
Suspension, steering, and powertrains. Indentify components.
You must be able to differentiate between a MacPerson strut, mulitilink, solid axle and other type of suspension system. You must know the difference between recitculating ball and rack and pinion type steering system. The steering and suspension angled you must be familar with toe, camber, caster, and steering axis inclination. (SAI) The vehicle engine, transmission and differential combination used in vehicle are known as powertrain. The transversely mouted engine/transaxle design is the most common configurtation in front wheel drive cars. Traditional engine, transmission, driveshafts, and differential configuartion is used in the majority of trucks and SUVs sharing truck chasis. Thr subframe usually has suspension conponents attached to it.
Identify components service requirements.
You must be familar with factory recomenation service procedures. You must know the drag link connects the two steering pivots of left and right side knuckles. The tie-rods are attached to the steering knuckles or spindle, as well.
Indentify Service Requirements.
As an appraiser, you should be able to distnguish between r12 and r135a a/c systems.
Fastemers and Meterial Indentify Fastener Type
(TTY) Torque-To-Yeild were first to used for engines with aluminum heads and iron blocks. Reusing TTY fasteners risk breakage and failure of the asssmbly. These bolts usually have green or other colored coatings on them and they should usually have to br replaced.
Identify Component Service Requirements.
Computer or module is not repairble and must be replaced.
Electical/ Electronic systems. (Identify components)
Electronics, engine, fuel system, ignition timing, climate control, brakes, snd suspension components are monitored by ecm electronic control module. Diagnostic trouble codes are stored within the computers, and they are generally experiencing malfuctions. Techs should always wear a static strap to proect any electronic components they handle. It helps ground any static charge.
Idenify Components Service Requirements
Everything must be replaced.
Indentify Component Servive Requirement
Indentify OEM service requirements refer to the manner in which parts are serviced. In other words, assembelies will come with certain parts, lines, hardware, etc.
Service Hybrid Vehicles
Its not usual for hybrids to have 650 volts and dead battery may hold 300 volts. Techs should have electric lineaman rubber gloves when handling the electrical components of hybrid vehicle. When repairing hybrid vehcles, thr vehcles stamdard 12 volt battery should be disconected as the first step. Removal of the hybrid of the battery is not always mandatory when repairing a hybrid vehicles, unless acess is required 12 inches of the battery take place. Some automakers recommend using a lift equipment systems, whiles other use authorize dealers. They lose their charge within 30 days and its recommended to run car every week. Painting a hybrid vehicle in heated spray booth may reach 150 f.
Identify component fuction.
Learn what is the purpose of CV joints, how could a torn booth affect safety, performance or reliabity? Learn about bearing.
Brakes. Indentify Component.
Major components of disc amd drum brake systems include the master cylinder, vacuum booster, rigid and flexible brake lines, proportioning valves, wheel cylinder, calipers, lining, drums, rotors, brake cables, self adjusters, handles, pedals sensor, and signal switches.
Heating, engine, cooling, and air conditioning. (Identify Components)
Major components of heating, engine cooling, and air conditioning system include the followimg radiator, heat/air conditioning case, heater core fans, ac compressor, compressor clutch reciever/drier, accessory drive belts, condesers, evaprator, accumulator, expansion valve, cases lines, refrigerant, oil, labeling vents, diverters and coolant hoses.
Identify components function.
Seatbelt pre tensioner, reels and points of attachment are critical elements of the system. They work together to hold occupant in place. The reel will allow upper body movement under normal allow upper body movrment under normal condition but will lock during hard or panic braking. The job tensioners is to reduce slack in the seatbelt, helping to prevent an occupants upper body from striking the dashboard, steeting wheel, etc. In an airbag system, the sensor are responible for sensing the sudden deceleration.
1. Fuel, intake, ignition, and exhaust system. (1 question) Indentify major components.
The components vapor recovery system, such as the lines and canisters, are also crtical. Inspect all lines leading to and from the fuel system for signs of damage.
Identify Component Function
The master cylinder is operated directly by the brake pedal. Vacuum asist booster found on vehcles equipped with power brakes add pressure to the hydraulic system. The ABS components are found between the master cylinder amd proportioning valve. The mechanical portion of the braking system consists of fhe cables for the parking brake, the brake rotors, drums and linings.
Identify Components Function.
The most common function of an electronic component is that a sensor, which sends data to a ECM.