machinery and equipment | Warren Forensics

Tag Archive: machinery and equipment

HEY…Cover Up Please!
June 20, 2022 12:36 pm Leave a Comment
Machine guards can be compared to the clothes we wear every day. Indeed, they serve a very important purpose. Imagine someone leaving their home on a fine, sunny morning wearing nothing but a smile. Wonder how far they will get through the day before things start going poorly for this individual?

There will be more than a few raised eyebrows and blushes when he stops into the local Starbucks for his usual morning double-dipped and whipped, chocolaty chip with a touch of pumpkin spice cappuccino fix. Good luck with that! Probably going to leave disappointed, empty-handed, and likely wearing handcuffs. This will be the beginning of a very long, very bad day for that individual. Had he recognized the risks associated with this type of behavior, and then put forth a little effort to cover up, he would have prevented many unfavorable and possibly life-changing personal and legal problems from ever occurring!

And so it is with properly guarding a machine. Machine safeguarding helps to protect workers from preventable injuries. (more…)
One Small Step…
June 8, 2022 4:14 pm Leave a Comment
Ladders…not a particularly exciting topic I’ll admit. But hey, we need ladders to help us accomplish all kinds of tasks. Most people have used at least one of the many types of ladders that are available today. And the odds are probably pretty good that many of those users strayed outside the limits of safety a time or two while on a ladder. It is amazing the risks some people will take to save some time or avoid the inconvenience of getting down to move the ladder into a safer position. I wonder how many of those risks would be taken on a ladder if the users knew they were on camera.

Think about astronaut Neil Armstrong. He travelled by rocket almost 239,000 miles through space and (more…)
Financial Injury.…From a Machine?!?!
May 24, 2022 4:11 pm Leave a Comment
Forensic engineers may be called upon to investigate a broad array of problems concerning a machine. Cases involving physical injuries and even death are a large part of what we investigate in order to determine what caused the accident to happen and who may be at fault. Occasionally, problems with a recently designed custom machine do not cause a physical injury, but instead cause a “financial” injury. This type of “injury” can negatively impact the machine designer, the machine purchaser, or possibly both. Financial injuries can be quite substantial, just as physical injuries can be, and may severely impact a company’s cash flow which can make or break a company. A refusal to pay a designer/builder of a machine or paying for a machine that ends up not meeting the agreed upon performance specifications can have catastrophic consequences for many businesses, especially for small ones. (more…)
WARREN Welcomes Mechanical Engineer Bob Hickman, P.E.
March 17, 2022 1:40 pm Leave a Comment
Please join us in welcoming Mechanical Engineer Bob Hickman, P.E., to the WARREN family! Bob has over 30 years of manufacturing and machine design experience in production and quality-driven environments. Bob holds a Bachelor of Science in Mechanical Engineering from Clemson University.

Bob’s Areas of Expertise Include:
-Machine Safeguarding
-Machine Design
-Equipment Failure
-Mechanical Engineering
-Industrial Accident Investigation
-Codes & Standards
-Machinery & Equipment Damage Assessment
-Products Liability (more…)
The Concepts of Hazard, Risk, and Harm in Machine Safeguarding
February 23, 2022 8:20 am Leave a Comment
Hazard, risk, and harm are terms that are used in the world of machine safeguarding. How do these words shape the concept of machine safeguarding? Let’s look a little deeper….

Hazard, which Merriam-Webster defines as a noun, lists its first meaning as a source of danger.

1: a source of danger

2a: the effect of unpredictable and unanalyzable forces in determining events : CHANCE, RISK

b: a chance event : ACCIDENT (more…)
The Use of Taglines to Control Crane Loads
January 13, 2022 3:49 pm Leave a Comment
The adequacy of a crane’s load line to support the weight of the object being lifted is an obvious concern when evaluating a crane lifting operation. Less obvious, but often equally important, is the presence and adequacy of taglines to provide control of the load orientation.

Taglines are simply ropes or lines that are (more…)
Industrial Equipment Failures and Construction Disputes
July 14, 2021 6:15 pm Leave a Comment
At Warren, we frequently investigate losses involving industrial machinery. Many of the losses involve workplace injuries, fires, or explosions; however, we also analyze industrial machinery and processes for other types of problems. For example, we analyze failures of machinery or industrial processes to perform as expected or disputes that arise from the commercial supply and construction of such systems. This can encompass a range of issues from failure to achieve required levels of product quality or production quantity, to matters concerning unclear specifications or contracts, (more…)
Heavy Machinery Fires Caused by Hydraulic Hose Failures
4:34 pm Leave a Comment
Heavy machinery fires are often caused by hydraulic hose failures. Pressurized hydraulic fluid escaping from a failed hose assembly can be atomized into a fine spray that can be ignited by heated engine surfaces such as the engine exhaust or turbocharger.

Hydraulic hoses near the engine compartment of an excavator that burned.

Hydraulic hoses often fail due to age and wear, requiring regular inspection and replacement of hydraulic hoses to prevent failures. Hoses may also fail if they are misrouted. Misrouting can lead to the hose being pinched or causing it to chafe against a sharp metal surface. (more…)
Interpreting Industrial Incident Data – Lesson Learned
June 17, 2021 12:46 pm Leave a Comment
This is a case study about an incident I investigated involving a major upset in a distillation column. This blog builds on the previous blogs about the Distributed Control System, DCS – Data is the Key.

Distillation is a method of separating mixtures of compounds with differing boiling points. Uncle Bill with his still on the hill separates ethanol, that boils at 173°F, from water that boils at 212°F. If the mixture is heated to above 173°F, but below 212°F, the ethanol will boil, the vapor will travel up out of the unit and then can be condensed and served over ice with an olive… Any mixture of two or more chemicals with different boiling points can be separated in this way. The distillation (more…)
The Role of Interlocking Guards in Injury Prevention
November 16, 2020 2:48 pm Leave a Comment
In the three-part series on the CE mark, we scratched the surface of some of the requirements an equipment manufacturer must meet in order to earn this designation. Part three of the series dealt with some of the requirements for the design of a guard. One of the items for consideration with the design of a guard is the frequency that someone will need to access the area protected by the guard. If access is needed on a routine basis, often defined as more than once per shift, the guard needs to be designed to be movable instead of fixed. Movable is defined as able to be opened without the use of tools. Otherwise the frustration and time requirements of obtaining tools and removing a fixed guard will often lead to the guard being discarded. (more…)

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