DFARScompliance checklist

When is it the rear differential? – If you’re hearing a howling during acceleration or deceleration, this is likely to be problems with the gears or differential pinion bearing preload. However, if it’s accompanied by a rumbling when you turn then this could mean that the bearings are failing to support the gears correctly.

Tyre wear – when the tyres on one side of your car are more worn than the other, and the wheels seem to be properly aligned, then you should consider getting a mechanic to examine the bearings.

DFARScountries

Contractors that hold contracts with the Department of Defense must be compliant with any Defense Federal Acquisition Regulation Supplement (DFARS) clauses specified in their contracts. DFARS is a set of acquisition regulations that govern the way the Federal Government acquires goods and services. Failure to follow some clauses of the DFARS may lead to early termination of the contract, making DFARS compliance an existential issue for contractors. In a worst-case scenario, failure to comply with contractual DFARS clauses could lead to a contractor losing all of their work with the DOD. One pertinent regulation with which contractors must be familiar is the DFARS clause defining cybersecurity standards. This clause requires contractors to implement the requirements identified in the National Institute of Science and Technology (NIST) Special Publication 800-171. This particular standard addresses the storage and transmission of Controlled Unclassified Information (CUI).

DFARScompliant countries 2024

Loose feeling behind the wheel – if you’re regularly getting behind the wheel of your vehicle, the chances are you’ll notice small changes in responsiveness and drive quality. Think you’re not as stable on the road? This looseness could be down to the erosion of the bearings, causing them to sit less snugly in the wheel assembly.

Grating or grinding sound – that changes with your on-road speed, but doesn’t miss a beat when you apply quick pressure to the throttle or depress the clutch.

DFARScertification

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FAR vsDFARS

Wheel bearings on older cars used to make a load of noise when they started having problems. These searing sonics would alert you to problems with the part and you could have them looked at before they became a major issue. Now, with all the soundproofing on the modern motor, it can be tough to distinguish bearing problems from tyre noise. However, if there’s a rumbling or grinding, accompanied by wobbling steering or uneven wear on your tyres – then wheel bearings could be to blame. In this article we go through some of the main danger signs.

It is possible for you to home in on the source of the wheel noise. Put your car up on jack stands for safety purposes and make sure it is secure. Ask a trusted friend to get in your car, put it in gear and take the wheel speed up to around 40mph. You should now be able to walk around the car listening to each wheel. Listen out for the winding, whining noise that indicates bearing failure.

A wheel bearing is made up of steel balls sitting together in a strengthened steel ring. This fits inside a hub or hole in the centre of your wheels, allowing the wheel to fit comfortably onto the metal axle whilst reducing friction between the parts.

Excessive rough driving – as wheel bearings carry the entire weight of the vehicle, shocks from big holes and crevices in dirt roads can be lethal to this part. Every impact forces the balls against one another and the ring, which can cause marks and wear that builds up over time.

Squealing and growling sounds – one of the classic symptoms of wheel bearing failure is a constant periodic chirping sound that gets worse as you speed up. It may also increase or stop when turning. Is your steering wheel vibrating too? This is a sure sign the bearings have gone.

Incorrect installation – have you had the bearings changed recently? A new part should be slick and smooth and relatively noiseless. If you’re hearing something after a replacement then the chances are you could be the recipient of a bodge job.

DFARScompliance

The main issue with wheel bearing failure is the noise that will emanate out from your wheels. This will make you uncomfortable behind the wheel and could drown out other important noise out on the road. Be careful and make sure you’re in full control when driving.

FAR and dfarfordummies

Wheel bearings are a tough part and won’t give out at the first sign of trouble. However, leave them too long and your car could lock up. Replacing the bearing is a lot of work and quite a tough job to complete.

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Flooding – if you’ve driven through deep water then it’s possible that the water could get into the bearings and mix with the lubricant. Friction becomes an issue as the lubricant’s effectiveness is diminished and the bearings start to rapidly wear.

These bearings support the entire weight of the car when it’s out on the road, and they don’t receive any kind of additional lubrication, only the viscous petroleum jelly applied at the factory, which means that over time the pressures of use will cause fatigue and breakages to the part.

DFARSmaterial

Unbalanced wheels and poor shock absorber performance – as with rough driving, poor shocks and bad wheel balance put more pressure on the bearings, causing premature wear.

Oftentimes, in the course of their performance of a government contract, contractors come into possession of CUI. The definition of CUI is non-classified information for which government regulation requires safeguarding or disseminating controls. While unclassified, protection of this information is still in the national interest. This could involve private information, the disclosure of which would damage the person or entity who owns that information. In the past, this information was given the designation of “Sensitive but Unclassified.” Although the worst-case scenario involves loss of contracts, it is ultimately the Contracting Officer’s responsibility to determine what action to take for noncompliance. For contracts involving CUI, attestation of compliance is a prerequisite for submitting bids for future DOD contracts. Small contractors who act as subcontractors to prime contractors can expect their primes to be vigilant about ensuring their compliance, as contractual clauses typically flow down to subcontractors. For smaller contractors, the issue has become how to best find a compliance strategy for these rules. Compliance will usually revolve around having sound controls and a reporting mechanism. The rule first requires that contractors have adequate security on covered information systems. The DFARS cyber clause is also focused on prompt reporting of cybersecurity incidents. The regulation states that if a cybersecurity incident occurs, the contractor must provide the DOD with an incident report, the malicious software and access to the contractors’ information systems upon request. The good news for contractors is that the rules state that the occurrence of an incident is not an automatic implication that the contractor failed to protect CUI. However, contractors should be prepared for enhanced scrutiny by the government of their systems in the event of a cyber incident. In such a case, contractors should be prepared to disclose what actions they took to comply with the DFARS cyber clause. This may include submitting evidence of implementation of each requirement in the contractors System Security Plan.  Contractors will have to recognize that they are partners with the government in safeguarding this information. For contractors, the question they will ask first is what constitutes adequate security when it comes to DFARS compliance. This is addressed by the aforementioned NIST SP 800-171 standard. The standard has 110 security requirements that can fall into one of fourteen categories. At a minimum, contractors must describe how they have implemented, or plan to implement, the safeguards described in the special publication. These rules apply in all cases when CUI resides on a contractor network, whether that environment constitutes on-premise servers, an internal cloud as a component of an internal enterprise network system, smartphones or tablets, or any other data processing system.

Pulling – although there are many other factors that are connected with pulling, with wheel alignment being a big one. If you notice this in conjunction with some of the other symptoms on here then it could be down to the bearings slipping.

Accident or impact – it’s not only impacts with the road that can wear out your bearings. If you happen to hit another car or a stationary object the intense vibrations can cause damage to this part.

To really confirm your suspicions, place a screwdriver on the hub (be careful not to touch any moving parts) and this will amplify the noise, helping you hear the bearings grind within the chase.