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The purpose of the Fire Mechanics Section is to promote standardization of fire apparatus and equipment preventative maintenance, improve safety standards and practices, promote workshops, conferences, and seminars related to the purposes of this Section, and to promote cost savings through standardization of building and equipment purchasing and maintenance.

RECENT FIRE MECHANIC NEWS

Posted: Jul 9, 2015

The Hose Mule Hose Retrieval System

By now, I think we all know the benefits of large-diameter hose (LDH).

Besides moving more water than the 2½- and three-inch hose used in the past, in a sense it's easier to pick up because less hose has to be used. However, there is no getting around the weight of this hose-especially five-inch. Let's not forget that the hose is picked up after the fire, when firefighters are exhausted, making the task even more difficult.

Clint Baker, fire engineer with the Temple (TX) Fire Department and CEO of Baker Fabrication, has developed a machine that has made packing LDH in the hosebed easier and safe. It's called the Hose Mule. Throughout Baker's career, before the coming of the Hose Mule, he realized the advantages of LDH as well as the disadvantages, the main one being the repacking of the hose into the hosebed.

1 The Hose Mule is mounted on top of the apparatus either in front of or to the rear of the hosebed. 2 The Hose Mule is a motorized set of rollers designed to take the place of firefighters having to manually pull the hose into the hosebed. (Photos courtesy of Clint Baker.)
1 The Hose Mule is mounted on top of the apparatus either in front of or to the rear of the hosebed.

The Device

The Hose Mule is a motorized set of rollers designed to take the place of firefighters manually pulling the hose into the hosebed. Its operation allows the hose to pass through the set of powered ringers back into the hosebed. The Hose Mule is mounted on top of the apparatus either in front of or to the rear of the hosebed. The process involves three firefighters plus the driver as well as one firefighter to perform the duties of the safety officer watching the operation. One firefighter operates the Hose Mule while two firefighters pack the hose in the bed, which mainly involves creating the folds. It is helpful to predrain the hose before the pickup operation starts, but it's not critical that all the water be evacuated.

The operational process for packing hose with the Hose Mule involves the apparatus moving forward alongside the hose at a speed of less than five miles per hour. The crew in the hosebed should safely kneel down in the bed while reloading the hose to maintain their stability and avoid a mishap. The Hose Mule begins to pull the hose up to the hosebed while the apparatus is moving, and the remaining water can easily be drained out. When a coupling reaches the Hose Mule, the operator opens the ringers by lifting a handle mounted to the top portion of the machine, and a platform mounted at the bottom of the machine lifts up at the same time, lifting the couplings to the level of the rollers. At this point, the firefighters simply pull the couplings past the roller, and the rollers are lowered back against the hose, continuing the pulling operation. The average amount of hose that can be picked up is between 50 and 80 feet per minute.

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Posted: Jul 9, 2015

Foam Systems Fitted to Variety of Fire Apparatus Types

A large percentage of pumpers built today are fitted with foam systems and, in some cases, even rescues and aerials carry foam tanks and foam systems.

The type of system being used on these vehicles is related directly to a department's standard operating procedures and its particular fire suppression needs as well as to the type of apparatus carrying the foam system.

Darley

Troy Carothers, AutoCAFS product manager for Darley Co., says Darley's Odin Foam Division makes anything foam-related, including foam proportioners, foam pumps for apparatus, compressed air foam system (CAFS) units, and CAFS kits. "We make the Fast Foam 50, a ½-gallon-per-minute (gpm) foam pump that runs off a 12-volt ¼-horsepower motor and uses a venturi with a direct injection into the discharges the department chooses," Carothers says. "The Fast Foam 50 only puts foam into the discharge when water is flowing through the line. It's primarily a one- or two-hand-line system that's useful for wildland or quick-attack trucks and is commonly hooked into a foam tank on the vehicle."

1 The Hose Mule is mounted on top of the apparatus either in front of or to the rear of the hosebed. 2 The Hose Mule is a motorized set of rollers designed to take the place of firefighters having to manually pull the hose into the hosebed. (Photos courtesy of Clint Baker.)
The Hose Mule is a motorized set of rollers designed to take the place of firefighters having to manually pull the hose into the hosebed. (Photos courtesy of Clint Baker.)
1 The Fast Foam 250 is Darley Company's 2½-gpm foam pump with a ½-horsepower electric motor that can treat 250 gallons of water. (Photo courtesy of Darley Co.)
1 The Fast Foam 250 is Darley Company's 2½-gpm foam pump with a ½-horsepower electric motor that can treat 250 gallons of water. (Photo courtesy of Darley Co.)

Darley also makes the Fast Foam 250, a 2½-gpm foam pump that uses a ½-horsepower electric motor for power and can treat 250 gallons of water. "We see Fast Foam 250 used on larger brush and wildland trucks," Carothers says. Darley's Odin Foam Division also makes the Foam Flurry around-the-pump foam system that uses a modified venturi on the suction side of the pump to draw foam from a pail. Carothers notes the system is suitable for 100- to 500-gpm diesel-driven pumps.

FoamPro and FRC

Mike Dupay, manager at FoamPro, says the FoamPro brand of proportioners operates on direct-injection technology. "They are on-demand type systems from the discharge side of the pump," Dupay says. "We measure the water flow and use microprocessor technology to drive a foam pump and inject whatever percentage foam that the operator has set in the controls."

FoamPro makes systems that use both single-point and multipoint injection, according to Dupay. "The single-point is most common on municipal and wildland type vehicles," he says. "The system injects foam into a cone of water, which is then broken down into a number of foam-capable discharges, with each discharge having the same percentage of foam. The system is designed so that if more water is put through it, it injects the amount of foam needed to hit the concentration set by the operator."

2 FoamPro's 2000 series foam proportioner is available for both Class A and Class B foam and comes in two models that differ only in capacity. Each system includes a Hypro triplex plunger pump and DC motor assembly. (Photo courtesy of FoamPro
2 FoamPro's 2000 series foam proportioner is available for both Class A and Class B foam and comes in two models that differ only in capacity. Each system includes a Hypro triplex plunger pump and DC motor assembly. (Photo courtesy of FoamPro.)

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Posted: Jul 9, 2015

Not a Typical Fire Service Tool

ROBERT TUTTEROW

Every year at FDIC International, there are always new tools being introduced to the fire service.

However, this year the National Fallen Firefighters Foundation (NFFF) and the United States Fire Administration (USFA) introduced a tool that all fire departments should use-and it's free! It is a tool that can be a "gateway" for additional firefighting equipment. It is called the "Vulnerability Assessment Program" (VAP) for fire departments. How is it a gateway tool? It could be a requirement for future grant applications, ISO ratings, and accreditation. Even if your department is not seeking grants, reducing or maintaining an ISO rating, or concerned about accreditation, the VAP is definitely worth the investment in time and can be used to justify funding and programs for a fire department.

Vulnerability Assessment Program

The VAP is targeted toward risk reduction to help fire departments identify their firefighter safety and health vulnerabilities. The program is an online tool and has a dedicated Web site: www.firevap.org. Basically, it is a survey departments can take to identify their shortcomings regarding firefighter health and safety. In addition to being a survey, the responses provide data and "actionable" information for a department to identify its needs and resources. The program generates a report that provides guidance in addressing the identified vulnerabilities.

Many departments may perceive the VAP as a waste of time and be reluctant to engage it. Or, there might be fear-a fear that identified shortcomings might find their way to the press. However, it is important to stress that no one but the department knows the results. The press will only find out if someone in the department informs them. It is important to note that the assessment is secure and protected by the department's unique password. On the other hand, it might be a good thing for the press to know. Public awareness can leverage funding to address documented needs. In my mind, that fear is akin to going to the doctor for a physical. Far too many people fail to get physicals because of what they might learn. Of course, shortcomings eventually emerge, and it is often too late. Fire departments may fear the known vulnerabilities could be used against them in a liability situation. On the contrary, what are the legal ramifications of failing to conduct the VAP? The VAP is designed to identify potential pitfalls that could lead to an LODD, injuries, lawsuits, and all of their associated costs.

Getting It Done

Fire departments should assign completing the assessment to someone (or a small group) who is very knowledgeable about the department. In some cases, it might be the fire chief, and the project should always involve the department's health and safety officer. Allot sufficient time to complete the survey. In addition to a brief profile of the department that must be completed, the survey requires answering almost 400 questions. To expedite the process, the assigned persons should gather information on the following (taken from the FAQs about the program): staffing levels, response capabilities, departmental policies, standard operating procedures, training, equipment, apparatus (age and condition), and personal protective equipment. There are also questions about the health and safety culture of the fire department as well as accountability.

Example

An example of a question asked in the survey is: "Does your department ensure all personnel responding in emergency vehicles are secured by seat belts or safety restraints in approved passenger compartments whi

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Posted: Jul 9, 2015

To CAFS or Not: A Comparative Study on Extinguishment of Contents Fires Using Water vs. CAFS

On December 12, 2014, the Southlake (TX) Fire Department, in cooperation with the Johnson County (TX) ESD1 Training Center, conducted a series of live fire experiments.

The following is a synopsis of what transpired during those live burns. This article is not meant to be a position paper on the use of compressed air foam systems (CAFS), nor does it prescribe one method of extinguishment over another. As always, follow your departmental guidelines regarding suppression techniques.

The What

CAFS is not a new piece of technology that just appeared on the fireground. In our area, we have had some departments actively deploying CAFS on the fireground for more than nine years. What is very much "up in the air" is its effective usage in urban environments here in the Metroplex area. The area known as the Metroplex encompasses Dallas/Fort Worth, Texas. Many departments have purchased these rigs and deployed them throughout their fleets. The manufacturers have been very good with initial training on operating the actual systems. There are also plenty of "experts" in the field of CAFS who are willing to come train your department. What is not standard nationwide is the acceptance of CAFS as an initial attack method. It is misunderstood and often not set up correctly-many apparatus operators are not familiar with the maintenance and upkeep of their systems. This altogether represents the higher costs often associated with the actual system. I have heard too many individuals comment that these systems are "a waste of money," that they are "glad it's out of service today," or comment that "we just need to stick with water." As with many "new" pieces of technology, training and experimentation are ways to overcome many of these misconceptions.


We could not acquire enough structures representative of construction found in the Metroplex. To be as realistic as possible, we acquired contemporary furnishings common to all jurisdictions. Mattresses, chairs, couches, and wood-component nightstands and dressers are very common products found in all bedrooms throughout the country. (Photos by author
We could not acquire enough structures representative of construction found in the Metroplex. To be as realistic as possible, we acquired contemporary furnishings common to all jurisdictions. Mattresses, chairs, couches, and wood-component nightstands and dressers are very common products found in all bedrooms throughout the country. (Photos by author.)

The Idea

After the Southlake Fire Department acquired its newest engine, some members and I were flowing this apparatus in a parking lot during the spring of 2014. Not having used CAFS that much before, we found the results rather interesting. We had also borrowed a nozzle from another department to do some minimal testing. Afterward, we actually had more questions than answers. Basic operation of the system is easy, but the application results were different than when we used water. As a member of the Fire Instructors Association of North Texas (FIANT), I started contacting some of my other instructors about information, tactics, and so on as they related to CAFS. Now fast forward about three months to the summer of 2014. I put a study group together to evaluate the differences between CAFS and water. After about five to six months of planning, scheduling, and rescheduling, we managed, as a group, to get this done.

What We Were Burning

To be as realistic as possible, we could not acquire that many structures representative of

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Fire Mechanics Section Board

Chair

Posted: Oct 21, 2015

Chair

Elliot Courage
North Whatcom Fire & Rescue
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Vice Chair

Posted: Oct 21, 2015

Vice Chair

Mike Smith 
Pierce County Fire District #5
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Secretary

Posted: Oct 21, 2015

Secretary

Greg Bach
South Snohomish County Fire & Rescue
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Director #1

Posted: Oct 21, 2015

Director #1

Doug Jones
South Kitsap Fire & Rescue
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Director #2

Posted: Oct 21, 2015

Director #2

Paul Spencer 
Fire Fleet Maintenance LLC
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Director #3

Posted: Oct 21, 2015

Director #3

Jim Morris
Mountain View Fire Department
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Director #4

Posted: Oct 21, 2015

Director #4

Arnie Kuchta

Clark County Fire District 6

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Director #6

Posted: Oct 21, 2015

Director #6

Brett Annear
Kitsap County Fire District 18
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Director #5

Posted: Oct 21, 2015

Director #5

Jay Jacks
Camano Island Fire & Rescue
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Legislative Representative

Posted: Oct 21, 2015

Legislative Representative

TBD
TBD
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Immediate Past Chair

Posted: Oct 20, 2015

Immediate Past Chair

Brian Fortner
Graham Fire & Rescue

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