What is a Primary Inspection? As truck drivers we have the obligation to prevent any mechanical failure that our vehicle presents, so it is important to know how to recognize and interpret the information produced by the control dashboard. This way, we can immediately be alerted to any potential danger to the unit and prevent any risk to innocent peoples lives.
Why is it important to conduct a Primary Inspection? The answer is very simple: it will help to reduce repair costs (reducing the time the vehicle spends at the mechanic), will provide a longer service life to the unit and will help to identify failure warnings in advance.
Before starting the truck you must make a visual inspection of the external components of the vehicle and its surroundings. You should pay particular attention to the bottom, making sure that there are no puddles, fluid drippings or oil on the floor.
CHECKING THE TIRES
- a) Before measuring the tire pressure it is very important to see the tire specification or order a pressure table from the manufacturer.
- b) The rims should be inspected from time to time and replaced if they show any flaws such as dents, rust, sprains, bad tires or armed weld repairs.
- c) The tires must show no damage to the tread, nails, stones, cracks or defects.
- d) The tires should not have any sidewall damage, deep scratches, cracks, cuts or dryness.
- e) All tires must have the full nuts, with no rust and be tightly installed.
- f) You should never use tires with different structures or diameters in the same axis.
INFLATION PRESSURE INSPECTION
The pressure will depend on the type of tire and the cargo carried. When the pressure is correct, the rim will be perfectly supported on the floor surface, and wear will be normal. The pressure of a pair of front wheels on the same axle should not vary more than 10% of wear.
CHECKING THE AIR PRESSURE
You shall check:
- Loose connections
- Bent, withered, cut or damaged hoses.
You shall check:
- Damaged or crystallized cables
- Loose or corroded connections
- Avoid friction with other vehicle parts
- Avoid unnecessary windings of electric wires
SHOCK ABSORBER INSPECTION
- Moisture in the middle part produced by leaks
- Bushings with holes
CHECK ONE BY ONE LEAVE SPRINGS
- Loss of “brightness”
- Mounting aligned and correctly
CHECK NEUMATIC AIR SUPENSION COMPONENTS:
- Air pipes and connectors
Doing a good inspection of your truck before starting your journey is always the best option, and as a driver, it is your responsibility to respect the traffic laws required by the DOT.
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Have a great trip.