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Posted: Sep 6, 2013

CAFS Units Find Homes on Variety of Apparatus

Alan M. Petrillo

It's not unusual these days to see a rescue vehicle carrying water and a pump, often called a rescue-pumper or a wet rescue. But frequently, such rescues have begun to be outfitted with compressed air foam systems (CAFS). It's part of a developing trend that is seeing wider use of CAFS not only on rescue-pumpers but on traditional pumpers, urban interface vehicles, and wildland units.

Dan White, national sales manager for Spartan ERV's Classic series, says that although most of the growth in CAFS use has been on wildland style units, it also is growing on the structural side of the fire apparatus industry. "CAFS is becoming more and more popular," White says. "We're seeing CAFS on about 40 percent of our wildland units, when three years ago that figure was about 25 percent. CAFS is becoming a required tool instead of something that's simply a 'want to have.' "

EMBC, a two-stage 2,000-gpm pump with a 220-cfm air compressor

(1) Darley's family of CAFS products includes the EMBC, a two-
stage 2,000-gpm pump with a 220-cfm air compressor. (Photo
courtesy of Darley.)

 

Spartan ERV has built traditional pumpers, rescue-pumpers, and even tankers with CAFS units, White maintains, and has a version of CAFS for its traditional rescues. "We built a compressor with a 100-gallon per minute (gpm) PTO-driven pump that can run one handline off of a 100-gallon water tank and a five-gallon foam tank. It doesn't take up a lot of room on the truck body and if the rescue is first on the scene of a vehicle fire, for instance, it can do a quick knockdown on the fire if necessary."

White points out that the typical Rapid CAFS unit that Spartan ERV builds is set up to handle any discharge that is plumbed as foam-capable. "Our standard 140-cubic feet per minute (cfm) compressor can generally handle two 1¾-inch discharges," he notes. "We also make 200-cfm and 250-cfm CAFS units. You essentially can add one 1¾-inch line for each step up in a typical setup."

The Rapid CAFS unit was developed, White says, to make the system easy to use. "We wanted it to be as simple as possible and not complicated at all," he says. "Once you're pumping water through a handline on the truck, it truly is a one-touch system."

Effects on Design

Chad Trinkner, director of product development for aerials, pumpers, and fire suppression at Pierce Manufacturing Inc., says that between 20 and 25 percent of the various types of pumpers Pierce makes-traditional, rescue, and industrial-have a CAFS unit on them. "There's a pretty good mix of the kinds of CAFS units going onto the vehicles," Trinkner points out. "It's about 50-50 of PTO to hydraulically driven units."

EMBC, a two-stage 2,000-gpm pump with a 220-cfm air compressor

(2) Hale Products has introduced its Smart
CAFS with a 210-cfm compressor on its
midship DSD, shown here, and Q-MAX
pumps. (Photo courtesy of Hale Products.)

 

Pierce first started installing Hercules CAFS units on pumpers in 1999, Trinkner notes, with a 200-cfm PTO-driven unit located in the pump house. In 2002, Pierce developed a 140-cfm hydraulically driven CAFS unit located in the pumper's dunnage area over the pump house, and in 2011 it came out with a 165-cfm PTO-driven unit located in the pump house. Locating a CAFS unit in the pump house, Trinkner points out, has one drawback. "A P

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Posted: Sep 6, 2013

Firefighter Head Protection Embraces Technology

Alan M. Petrillo

Safety starts at the top-the top of the firefighter's head, that is. The firefighter's helmet has long protected him from heat, falling objects, and other hazards. Today, manufacturers of structural firefighting helmets are putting added protection into their products in an effort to give firefighters the best safeguard against hazards while providing the most comfortable fit possible.

Tradition vs. Modern

Matt DeLorenzo, MSA's product line manager for Cairns helmets, says that firefighters tend to be very traditional but have embraced different forms of helmets over the years. "The two main styles of fire helmets in North America are the traditional look and the modern style, which has a more rounded shape," DeLorenzo says. "The modern style started to overtake the traditional in usage in the 1990s, and at that time Cairns was selling 60 percent modern helmets to 40 percent traditional. But after September 11, 2001, there was a big switch back to the traditional style helmet so that now Cairns is selling 65 percent traditional helmets to 35 percent modern."

Cairns Defender visor

(1) MSA makes the Cairns Defender
visor for its line of helmets, shown
here on a traditional style helmet. The
Defender visor retracts up inside the
helmet shell, protecting it from
damage when stowed and putting it
closer to the eye for greater
protection when deployed. (Photo
courtesy of MSA.)

 

Eye Protection

MSA acquired Cairns in 2000 and in succeeding years launched a number of new helmets and innovations, including the Defender visor for traditional helmets, DeLorenzo points out. "We took the idea from European style helmets," he says. "The Defender visor retracts up inside the helmet shell where it stays cleaner; is less likely to become damaged; and, when deployed, puts its protection closer to the eye." The Defender is available on all fiberglass models of Cairns traditional and modern helmets.

Thomas Stachler, product manager for helmets at Honeywell First Responder Products, says his company's new EV1 structural helmet features a self-deploying spring-loaded lens and eye protection that's internal to the helmet's shell. "The eye protection sits in between the helmet's suspension ring system and its shell," Stachler says. "It is deployed by pushing up on it where a drag wheel lowers it so it doesn't bang down onto the nose. It also has a safety latch on the right side to lock the shield in the up position, which keeps it from accidentally opening up or for when it's in storage."

The EV1 also has a leather brow pad and three hook-and-loop tabs to allow easy adjustment of the headband height. "There's an optional goggle strap attachment for single- or two-strap goggles to be locked in," Stachler notes. "If you remove the helmet, the goggles stay with it. The straps are in line above the ears so they are pulling parallel and back toward the face instead of being attached to the helmet's brim where there's a pull on the bottom of the goggles."

EV1 structural firefighting helmet

(2) Honeywell First Responder Products makes the EV1 structural
firefighting helmet that has a self-deploying spring-loaded lens and
eye protection internal to the helmet's shell. (Photo courtesy of
Honeywell First Responder Products.)

 

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Posted: Sep 5, 2013

Is This How You Treat Your Chainsaw at Home?

By Raul A. Angulo

Take a good look at the face in photo 1 and memorize that expression. Make sure it leaves an imprint on your mind. This is Stan Wainscott. He is the 22-year veteran and fire service specialist (master repair technician) in the Seattle (WA) Fire Department's (SFD) Services Division. Every fire department has a Stan Wainscott. These are the guys who fix all the equipment we break. When Wainscott is wearing this face, it's usually accompanied by one of the following remarks:

• What were you knuckleheads cutting with this saw, battleships?
• The city actually pays you guys for destroying this equipment?
• Do you know how much this costs?
• This is destroyed! It doesn't need fixing, it needs to be replaced!
• Is this how you treat your power equipment at home?

It's not good when that face is matched with one of the above remarks. The company officer will have some explaining to do, and it's usually through a letter to the fire chief. Equipment repair costs are extremely expensive and siphon money away from the budget that could be used to purchase additional specialized equipment, like a new thermal imaging camera with the latest technology.

Stan Wainscott

(1) Stan Wainscott is the 22-year veteran of the Seattle (WA)
Fire Department Services Division who fixes all the stuff we
break. You don't want Wainscott to look at you like this.
(Photos by author.)

 

It's hard to attach a figure to the money that is wasted to repair damaged equipment because of a lack of regular maintenance, poor maintenance, or no maintenance. The core issue could be laziness, lack of pride and ownership, or ignorance. Either way, it boils down to a lack of professionalism.

Core Equipment

The chainsaw is one tool that gets a lot of use by firefighters. It's the work horse for truck company operations. It's also one of the tools that needs to be cleaned and fueled after every use, but sometimes that doesn't get done. There are lots of makes and models out there, so the first thing you need to do is read and follow the owner's manual, especially the instructions for recommended maintenance. It's a good guess that firefighters don't read the owner's manual on power tools they're familiar with. Many of us own chainsaws, so we sometimes assume everyone knows how to use one and clean one. Not so. When senior firefighters show the new guy the saws, some might give the "quick start" version and take shortcuts to proper orientation. The result is new firefighters don't get properly trained because important information was left out. As they train newer firefighters, they pass on only the information they know, which was incomplete to start with. Then when equipment gets damaged, you get the proverbial excuse, "Well no one ever showed me that."

damaged cylinder heads

(2) Here's an example of damaged cylinder heads from cutting
tar roofs. When cutting wood, debris flies right through the
cooling fins. However, the chainsaw's running temperature is
110°F. That is hot enough to melt tar debris right to the fins.

 

Unlike the circular rescue saws, which use a flat-edged carbide tip blade (not a tearing tooth), the chainsaw carbide tip blades are alternately set at 45 degrees so they make a jagged cut. This ripping saw is the most dangerous tool in the fire service. Without proper training and handling, it can ruin your career in five sec

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Posted: Sep 5, 2013

Rescue Truck Designs Reflect Multipurpose Trends

Alan M. Petrillo

Not many firefighters agree on the perfect design for a rescue truck, chiefly because the design depends on a fire department's particular needs. Thus, manufacturers are turning out a wide variety of rescue truck styles, from traditional walk-around rescues that serve as huge toolboxes to walk-in rescues that offer interior access, to combination units and rescue-pumpers. In effect, a rescue truck design these days is up to the imagination of the department and its vehicle manufacturer.

tandem-axle combination walk-in and walk-around heavy rescue truck

(1) Pierce Manufacturing built this tandem-axle combination
walk-in and walk-around heavy rescue truck for the Bound
Brook (NJ) Rescue Squad. (Photo courtesy of Pierce
Manufacturing.)

 

Transition

Eddie L. Smith, director of the emergency vehicles group at VT Hackney, says that the economy and technological changes in the past few years have affected the design and definition of a traditional rescue truck. "Not many decades ago, a rescue truck was an anomaly in fire departments except in large city departments," Smith says. "Many fire departments didn't do auto extrication, technical rescue, or hazardous materials work. But as they started doing those activities, we saw rescues go from a squad that was a small truck carrying some tools and first-aid equipment to today's heavy rescues where sometimes manufacturers are hard pressed to get all the equipment on the truck that the department wants."

Smith thinks that tight budgets and staffing cuts have caused a transition from heavy rescues to rescue-pumpers and combination vehicles. "I don't think heavy rescues will go away any time soon but believe we'll see more of their use with regional response teams."

walk-around rescue truck that includes a Burner Fire Control stored energy compressed air foam system

(2) The Jessup (PA) Hose Co. turned to KME to build this
walk-around rescue truck that includes a Burner Fire Control
stored energy compressed air foam system (CAFS). (Photo
courtesy of KME.)

 

As an example of a traditional heavy rescue still being in favor, Smith points out a heavy rescue Hackney recently built for the Ayden (NC) Fire Department, a small bedroom community that also protects a large DuPont industrial plant. "That rescue is on a Spartan MetroStar chassis and carries a cascade air system, rehab equipment, air bags, hydraulic rescue tools, a full ground ladder complement, a 25-kW Harrison hydraulic generator, a light tower, and high-amp cord reels to extend their lighting well beyond the truck. That vehicle is ready for anything."

Smaller Options

On the flip side of rescue truck design, some departments are opting for smaller and lighter rigs. Todd Nix, apparatus consultant for Unruh Fire, says that when the economy tanked in 2008, a lot of fire departments moved toward smaller chassis rescues. "They turned to Fords and Dodges, particularly the Ford F-550 chassis with a crew cab," Nix says. "Many of those trucks carry a medium-duty Hale HBX 200 or Darley 2BE 200- to 250-gpm pump on them and around 300 gallons of water. With a 10-foot rescue box, we can still get all the extrication and medical equipment on the vehicle so that it becomes a multipurpose unit for the department."

Nix says that the smaller rescues are being purchased by fire d

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Posted: Sep 5, 2013

Preparing for Rescues

By Richard Marinucci

Fire departments have always been in the rescue business. Mostly rescues have been fire-related, but because of the assets, response times, and firefighters' talents, the fire service has been called to virtually any situation that requires a rescue. It was not too long ago that the success of these rescues relied on the tools traditionally carried by fire departments to address fires and the creativity of firefighters to improvise during an emergency. Much has changed as equipment has been developed for specific circumstances, standards have been developed, and training has evolved to learn and practice particular skills related to the situations and available tools.

Anticipate and Assess

To properly prepare for potential rescues, departments need to anticipate the potential of various rescue situations that could occur in their response districts. Some are very obvious such as fires and vehicle crashes. There is a list of others, not all of which apply. For example, unless you live in a cold weather climate, ice rescues are not something that you need to consider. If you have no fast moving water, preparation for swift water rescues is not necessary.

Taking this a bit further, departments should also consider the likelihood of certain events and determine the best way to prepare for possible, but not likely, events. These could be incidents like industrial hazmat emergencies in communities with few industrial plants. Though a historical review may indicate the risk is low, a department or possibly the entire community must have a method to address mishaps or more serious incidents.

After completing an assessment, review applicable standards. This includes any legal mandates or governmental requirements such as those mandated by the Occupational Safety and Health Administration (OSHA) or others. There are also industry standards, most notably those published by the National Fire Protection Association (NFPA). These documents identify the methods to employ for specific rescue situations. They will include equipment needs, training requirements, and safety considerations. Failure to follow legal directives or acceptable standards will cause problems after the incident-even if the outcome is good. There is an expectation that organizations that know the types of calls that may require a response are prepared for said responses.

Personnel

Human resources are needed for all rescues-that is, people are needed to make sure that rescues are executed efficiently and effectively. Based on anticipated emergencies, recommended standards, and rules, a certain number of responders is required. Departments need to realistically determine not only if they have the human resources but also if there is adequate talent for the jobs to be done. As an example, departments that are considering water rescue may need to have certified SCUBA divers. It is not just a case of having a person available but one that has the necessary skills. Departments also need to consider other available resources. Some rescue situations require heavy equipment that is rarely part of a fire department's fleet. This equipment could be available from other governmental agencies, like departments of public works or from the private sector. This equipment probably requires specially trained people to use it. The time to find these resources is not after a call to 911 has been made.

Equipment

Many of the specialty rescue operations continually evolve based on new methods and equipment and tool developments. Departments must continually monitor the state of the art and be aware of improvements. This is done through active engagement in the profession. Regularly review periodicals and Web sites. Consider attending trade shows to see the latest and greatest firsthand. Often a network of like-minded professionals is beneficial in sharing ideas. A tr

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