Car Repair Safety

Burns

• Do not remove the radiator or expansion tank cap while the engine is hot.
• The engine oil, automatic transmission fluid, or power steering fluid may be hot for some time after the engine has stopped.
• Touching the exhaust system or engine pipes may cause burns.

After a ride, the brake discs and drums may also be hot. Injuries from falling loads

• To carry out work under the body or near a car standing on a jack, always install special (or self-made) stands (racks) under the body, or drive the car onto a flyover or into a “pit”.
Never work under a machine that is only kept from falling by a jack. • Be careful when applying significant torques by tightening or loosening bolts and nuts when the vehicle is raised.

The final tightening of the fasteners should be done only when the machine is lowered from the racks. Fire Safety

• Fuel is highly flammable and its vapors are explosive.
• Do not spill fuel on a hot engine or exhaust pipes.
• Do not smoke or use naked flames while operating the machine.
Also avoid the formation of sparks during work (for example, when working with power tools). • fuel vapors are heavier than air, so it is not recommended to work with the fuel system when the machine is standing on an inspection hole (preferably on a flyover).
• The cause of the fire may also be a short circuit or overload of the onboard electrical wiring.
Be careful when repairing or replacing electrical wiring and working on the body near it. • Keep a fire extinguisher nearby that is suitable for extinguishing burning fuel and electrical wiring.

Electric Shock

• High voltage ignition wires can be dangerous - especially for people with cardiovascular disease.
Unless absolutely necessary, do not work on or near the ignition system while the engine is running or the ignition is on. • Interruptions in the voltage of the car's on-board network also pose a danger to some units.

Make sure that the grounding of the equipment connected to the on-board network is reliable. Current sources should be protected with fuses. Exhaust poisoning

• Exhaust gases are toxic due to the content of carbon monoxide (which, by the way, is heavier than air), which in an enclosed or confined space can lead to poisoning and quick death, so do not start the engine in the garage, even with the doors open.
• Fumes from fuel, as well as some other liquids (solvents and body care sprays), are poisonous.

Corrosive and Toxic Substances

• Avoid skin contact with electrolyte, fuel, liquid oils, coolant, brake fluid, and air conditioner refrigerant.
It is not recommended to pump out these liquids by mouth through a tube. If some of this liquid gets into the mouth, eyes, or digestive organs, seek medical attention immediately. • Years of exposure to used engine oil can cause skin cancer.
Use gloves or apply a protective cream on your hands (by the way, it is much easier to wash your hands after the cream). • The air conditioner refrigerant can generate poisonous gas when it comes into contact with an open flame (even from a cigarette).

It may cause burns on contact with skin. Asbestos

• When inhaled, asbestos dust can cause lung cancer.

Asbestos is used in the manufacture of gaskets, brake linings and clutch disc linings. When working on these components, always assume that they contain asbestos and apply appropriate protective measures. Fluoric Acid

• This highly corrosive acid can be formed during heating (in case of fire) of certain synthetic rubbers used in the manufacture of O-rings, seals, oil seals, fuel hoses, and the like.
up to temperatures over 400ºС. In this case, the rubber is converted into a burnt, very sticky substance containing acid. Once formed, the acid remains dangerous for a long time. If it comes into contact with the skin, the acid causes severe burns and may require amputation of the affected area to remove it. • When working on a machine that has been damaged in a fire, or with parts removed from such a machine, be sure to wear protective gloves, which should be discarded at the end of work.

Battery

• The battery contains an aqueous solution of sulfuric acid, which will corrode clothing, skin, etc. if it comes in contact with it. Be careful when carrying and topping up the battery.
• Hydrogen is released from the battery during charging, which is explosive.

Avoid using open flames near the battery. Be careful when disconnecting and connecting battery cables, charger or parallel connection of batteries (sparking). Airbags

• Injury can be caused by accidental deployment of airbags.

Be careful when removing the steering wheel and/or dashboard. When storing airbags, follow all the requirements of the special instructions. Features of repair work on models equipped with injection systems

Many operations require disconnection of fuel lines and disassembly of fuel system components, which, as a rule, is accompanied by fuel leakage.
Before working on the car's power system, read the safety precautions given in the special section at the beginning of the corresponding chapter. Even if the car has not been used for a long time, excess pressure still remains in the fuel lines.
In this regard, when disconnecting or depressurizing the fuel hoses, be careful and careful. Gradual loosening of the fuel hose will prevent a large loss of fuel. Some adjustment screws are covered with protective plugs or plugs.
They are set for fixation and to prevent unintentional access. You must:
• wear protective goggles when working with mechanical and electrical (especially abrasive) tools and when working under the machine.
• Wear gloves or apply protective hand cream where required.
• If you are working under the machine alone, have someone periodically come into the room and check that you are all right.
• Keep loose clothing and long hair away from moving machinery.
• remove rings, wristwatches, etc.
• make sure that the weight of the load being lifted is appropriate for the lifting capacity of the equipment.
• Keep a first aid kit on hand, complete with dressings, medicines specific to you, etc.
• It is very convenient to have a mobile phone at hand to call for help in an emergency.

It is not recommended

• to lift heavy items by yourself, the weight of which exceeds your capabilities, call someone for help.
• try to finish the job faster by eliminating certain operations.
• Use tools that can slip or break under load, resulting in personal injury or damage to the unit.
• scatter tools and parts in disorder, you can trip over them.
Wipe up spilled oil and fuel immediately. • allow children and animals to play near the machine being repaired.

Where is the body number on T4 . Description of the body of the Volvo C40.