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NEW! Tool Connect
Guess the Tool
TPMS Tools
October/November 2013 TechShopMag.com
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Group Publisher: Jeff Stankard, ext. 282
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Associate Publisher: Sean Donohue, ext. 206 Editor: Jennifer Clements, ext. 265 Managing Editor: Tim Fritz, ext. 218 Technical Editor: Larry Carley
20 OCTOBER/NOVEMBER 2013
Contributing Writers: Karl Schneider, Curt Harler, Olle Gladso, Vladmir Postolovskyi and Andrew Bezhanov Ad Services Manager: Valli Pantuso, ext. 223 Graphic Designer: Kelly Gifford, ext. 249 Circulation Manager Pat Robinson, ext. 276
Vol. 13, Issue 6
FEATURES 8 // Don’t ‘Air’ with Your Compressor Contributing writer Curt Harler provides an update on air compressor technology and basic maintenance tips to keep yours running efficiently.
20 // Maximizing Tools: Unconventional Diagnostic Methods, Part 2 In this second installment, Riverland Technical and Community College Instructors Olle Gladso, Vladimir Postolovskyi and Andrew Bezhanov provide more unconventional diagnostic procedures to try with your DMM.
Regional Sales Managers: Bobbie Adams
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Don Hemming
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Dean Martin
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Glenn Warner
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John Zick
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DEPARTMENTS 4 // Editor’s Notes 31 // Top 5 Tools 14 // Pulling Codes 43 // From the Tool Truck 30 // Guess the Tool Contest 44 // Classifieds
Babcox Media 3550 Embassy Parkway Akron, Ohio 44333-8318 P 330-670-1234 F 330-670-0874 www.babcox.com President: Bill Babcox
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EDITOR’SNOTES TechShop Is Getting ‘Switched On’ and Launches Tool Connect New Equipment & Tools E-Newsletter t our company’s annual sales meeting in August, Babcox Media hosted motivational speaker Chip Eichelberger at our corporate headquarters in Akron, OH. Chip’s motto is “Get Switched On.” And he definitely had our team switched on! His enthusiastic presentation had the whole company motivated to look at the direction our lives are going, and figure out how to make ourselves more valuable — to our families, our careers, our customers and ourselves. “There’s a gap from how you do it now to how it should be done,” Chip said. Many of his suggestions also are applicable to being a superior shop owner or technician. Create your own compelling vision to have a GREAT YEAR. Chip recommends writing down your vision, laminating it and putting it up in your shower. Re-evaluate everything in your current patterns of time and associations. Where do you need to confront the brutal facts and make some extreme changes? Invest an hour a day on YOU. You are worth it, he says. How many non-fiction books will you read this year? What will happen when you do? “Remember the Law of Association: you will become like the information and people you spend the most time with.” Among the many suggested books on his vast reading list are Unlimited Power and Awaken the Giant Within by Anthony Robbins, What Got You Here Won’t Get You There by Marshall Goldsmith, Mindset: The New Psychology of Success by Carol Dweck and The 21 Irrefutable Laws of
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Leadership by John C. Maxwell. Get Switched On! “Be the dispenser of enthusiasm at the beginning of each day with your team and family and again at the end of the day,” Chip advises. Be a catalyst, and beware the Law of Familiarity. “Treat established clients/ employees/spouses like new ones!” Chip’s website is www.get switchedon.com, and you can follow him on Twitter at @chipe. So now the TechShop team is switched on and enthusiastic about our recently launched equipment and tool e-newsletter — Tool Connect. Each Wednesday, Tool Connect brings you only the tool and equipment info you want and need. Each week, we’ll bring you the latest new product information, technical articles, tool demo videos, equipment & tool industry news, tool tips and more. The feedback we’ve received so far has been incredibly encouraging, with readers hungry for more tools and equipment. Have you received it? What do you think? If you haven’t, please sign up. Just visit https:// babcox.wufoo.com/ forms/q7m2x9/ and Get Switched On! TS
Jennifer Clements Editor jclements@babcox.com
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07,28 Products_Oct 10/8/13 1:18 PM Page 7
Extra-Long Ratchet Handles Provide Speed, Strength, Leverage & Access
PRODUCTPREVIEWS
GearWrench announced its new 84-Tooth Long Handle Ratchets feature a handle that is over 25% longer than standard ratchets, offering increased reach and greater leverage. It has a low-profile GearWrench teardrop head and a flush-mount on/off. The 84-tooth gear offers a 4.3째 swing arc, making it easy for technicians to start fasteners in the most confined spaces. Like many GearWrench ratchets, the new 84Tooth Long Handle Ratchets exceed ASME torque performance specifications delivering the required strength. GearWrench, an Apex Tool Group brand Circle #65 for more information
Advanced Alert System to Monitor 55-Gallon Drums BJE introduces an enhanced stand-alone monitor that sends both audible and visual alerts indicating when 55-gallon drums require attention. Drum Alert eliminates the task of constantly checking whether barrels need to be changed, bringing you peace of mind. Running out of key fluids results in lost business and costly downtime. And if drums are used to capture hazardous liquid waste, an overflow creates a safety hazard that results in possible regulatory fines and an expensive clean up. The sensor activates a 103-decibel alarm siren when fluid is reaches critical levels. Drum Alert can be set up to detect either low or high levels, depending on how the drum is used. BJE, a division of Husky Corporation Circle #66 for more information Circle #7 for Reader Service TechShopMag.com
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08-13,36 Air Compressors 10/8/13 1:17 PM Page 8
FEATURE STORY
Keep Yours Running Efficiently with Some Basic Maintenance Tips
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lmost every repair shop has a few compressors chugging away. Rather than viewing them as an expense, shops can turn them into moneymakers, or at least less of a drag on the bottom line, by looking at several areas either when buying a new unit or inspecting an old one. New units offer a host of improved features including power savings and better air quality that make them worth considering. However, there’s no reason to toss a perfectly good compressor just because it’s a few years old. Check its operational efficiency — with a close eye to areas such as leak control — and an existing unit will give good service for some time to come. The latest compressors are package deals that include all the features a shop might need: compressor, refrigeration, drier and filters to remove contaminants from the air. Not only is the package typically cheaper than buying the components individually, but an all-in-one unit takes up less floor space and should cost less to install.
Quality Air The quality of the air provided is a major factor to consider with new compressors. In general, new units will provide a better supply of clean air than the models of yesteryear. While body shops require high-quality air for painting, an automotive repair shop needs the versa-
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tility to run the day-to-day operations from one efficient air supply. These new units provide that. As the delivery mechanism for operating pneumatic tools, clean, dry air at a consistent pressure is critical. These requirements can be achieved by installing the right compressed air system to meet the needs of the shop’s specific air demand profile. Selecting and installing dryers, filtration and drain traps can be the difference between an expensive impact lasting decades or just a few months. Several manufacturers offer variablespeed drives that control the rpm of the motor as demand for air increases or decreases. In some cases, these variablespeed drives are called frequency-controlled drives. Either way, the result is similar: the system uses less air and therefore the cost of the electricity used is less. No matter what the product and no matter who the vendor, correctly designed and installed compressed air distribution systems allow shops and facilities of all sizes to capitalize on energy savings and increase system reliability and productivity. Consulting a trained compressed air system provider will supply both the equipment and design expertise required to achieve these goals.
Curt Harler Contributing Writer curt@curtharler.com
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FEATURE STORY Piston or Screw? Any shop owners who announce they’re in the market for a new compressor will be able to kill a lot of time with business associates discussing the relative merits of
the piston machine versus the rotary screw machine. Even manufacturers who produce both types of compressors will agree that it boils down to the kind of application where the
compressor will be used. The piston machine is better suited for the typical smaller shop where the demand for air is up and down all day long. A piston compressor is typically better for applications like those in general automotive repair businesses where the demand is cyclical or sporadic. In that kind of shop, air tools are used for a few seconds, set aside, then picked up again a few minutes later. Rotary screw machines come to the forefront with applications where continuous air is required. The rotary screw compressor will be a tougher, more durable machine for situations where the application calls for a constant-duty cycle. Typically, a paint shop will favor the rotary screw machine as the painter uses the air for longer periods of time and must have a smooth, continuous flow to do an even job with the gun. Likewise, the rotary screw is a better bet for shops that do a good deal of sand or bead blasting. Tanks and receivers ensure adequate storage. Many mistakenly assume that because rotary screw compressors are 100% duty cycle, tanks aren’t needed. Experts recommend a “wet tank” to provide a first stage of moisture separation and a “dry tank” downstream for true storage. Single tank systems should allow for three to five gallons of storage for every one cfm in air capacity. Wet tanks and multipurpose tanks should include an automatic drain trap. Allowing water to build up in the tank can cause delivery and reliability problems. Pay special attention to the type of drain selected for this component. But, where demand varies, the piston unit will come to the fore. Besides, the piston machine is typically a mechanically simpler compressor and, therefore, is easier to maintain.
Power Savings Many businesses, including repair Circle #10 for Reader Service
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FEATURE STORY How to Calculate Compressor Piping The best way to correctly size compressed air piping is to perform specific calculations for the intended system as a whole. This calculation is based on the rule that the maximum pressure drop between the compressor and the air-consuming equipment including dryers, filters and drain traps should be no greater than 14 psi. Here are a few rules of thumb for calculating individual pressure losses: Main distribution loop...0.4 psi (0.03 bar x 14.5 = 0.4 psi) Branch distribution piping...0.4 psi (0.03 bar x 14.5 = 0.4 psi) Drop down connection piping...0.6 psi (0.04 bar x 14.5 = 0.6 psi) Dryer...4.0 psi (0.3 bar x 14.5 = 4 psi) Filter/regulator/lubricator units and hoses at point of use...9 psi (0.6 bar x 14.5 = 9 psi) Total pressure drop...14 psi Itemizing and detailing air system components and their respective pressure drops creates a much clearer picture. Connection components such as elbows, tees and shutoff valves should also be considered. Furthermore, it’s equally important to determine and consider the equivalent pipe length of the connection components in the overall pipe length.
shops, are saving money with power rebates from their electric utility companies. In a lot of cases, a new, energy-efficient compressor will qualify a shop for a rebate that will offset a chunk of the up-front cost of the compressor. Typically, that compressor will have to be a certain horsepower level. The chance to earn rebates is coming from utilities on both coasts. Power utilities in California, Oregon, Washington State, Connecticut, New Jersey and Massachusetts all offer such programs, and they’re popping up in other states as well. Check out www.Energy.gov under the Public Service tab for information on your state. No matter what kind of compressors are being used in a shop, another way to save money on the electric bill is always to start the compressor with the largest motor first every day. Power companies typically base their charges on the highest in-rush kW hour rate, and that rate holds for the remainder of the day. Say a shop has a half-dozen 5-hp motors and a 50-hp motor. Starting the largest motor first will keep the in-rush rate down. Rather than having the 50 hp added to the 30 hp from the little motors for a total inrush of 80 hp, starting the 50-hp motor first establishes that 50-hp demand as the largest in-rush and the 5-hp add-ons don’t break the bank.
Lose the Leaks Another efficiency tip that applies to any compressor system, new or old, is to handle little leaks before they cause a major leak in the corporate checkbook. Leaks in a well-maintained air distribution system should be no higher than 10% of total compressed air consumption. Because leaks don’t usually stem from a single point, but rather from numerous small leaks in the hundredth- or thouCircle #12 for Reader Service
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FEATURE STORY sandth-inch range, it may be worthwhile to investigate purchasing or leasing leak detection equipment. Many facilities have found that ultrasonic equipment is extremely effective in locating leaks. In addition, depressurizing the system while not in use will help reduce compressed air loss. Most leaks occur near the point of tool attachment, either just before the connection or right at it. Those leaks are costly. Studies indicate that as much as 35% of all compressed air produced is lost to leaks. Inadequately sized piping, artificial demand and other air system design errors can add to unnecessarily high operating costs. Establishing a leak detection and repair program can lead to an efficient compressed air delivery system. Leaks from the compressed air distribution system cause considerable energy losses and significantly increase operating costs. For example, a quarter-inch diameter hole in an air distribution system operating at 100 psi working pressure will cause an air loss of 104 cubic feet per minute. That’s more than 6,000 cubic
feet per hour and, if the system is in continuous operation, over 50 million cubic feet per year. So, with an average energy cost of $0.05 kWh, the annual cost to support a quarter-inch leak is $8,382. In any case, it pays to have someone in the shop test hoses, tools and equipment regularly for leaks. Problem areas can be quickly and easily identified by using soapsuds or special sprays made for the job. Check compressed air tools for leaky inlet valves. Another energy hog is the common spiral hose. Spiral hoses should be used only where there’s no other solution because, like pressure regulators, they waste a lot of energy. Also, check drain traps. Drain traps remove accumulated moisture from clean air treatment components. Drain traps should be included on dryers, moisture removal filters and tanks. Capacitance-sensor actuated drains provide excellent value for the money — opening only when needed to release compressed air condensate, but not valuable compressed air. It’s also Continues on page 36
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PULLING CODES Top EPA Codes
A Mercedes-Benz Story — A P0300 Analysis Using Exhaust Waveforms T
his article will document the P0300 code for a 1996 Mercedes-Benz. A single cylinder misfire has occurred, and the technician decides to clear the code in my presence. I advised that it is a good strategy to maintain the code information for review. It’s clear that misfire activity can be challenging on some ignition systems, and I’ve found through my research that all of the car manufacturers appear to run their monitors in a similar fashion, but it’s still wise to review their service information for the differences and details of their systems. Our diagnostic journey begins with a noticeable misfire activity on our subject vehicle. The tech states that he saw that misfire information on his scan tool pointed to cylinder #6. A review of scan data shows that long-term fuel trim is at or about +5%, see Figure 1; this implies that it may be an ignition issue. This conclusion is drawn from our review of subject vehicles with misfire activity that the ignition misfire does not appear
Figure 1
Figure 2
Carlton Banks Technical Contributor carlton196100@yahoo.com
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PULLING CODES to have a significant impact on fuel trims. (We know that this may create some discussion. If you would like to see an article supporting this claim, email the editor that you are interested in seeing this.) This system has a dual ignition coil setup on each cylinder similar
to a DIS system. The scan tool shows a spark duration on the 2-5 coil pair of 2.5 ms. The fuel injector for cylinder #6 has been replaced, as this is what the technician believed to be the cause of the misfire. This vehicle was a great opportunity to explore the concept of ex-
haust waveforms, see Figure 2 on page 14; this would identify the guilty cylinder for us. I placed the probe in the vehicle’s exhaust and was able to obtain the following waveforms for review. See Figures 3-4. The firing order on this vehicle is 1-5-3-6-2-4. The synch probe has been placed on cylinder #1 as a reference for coil firing. When you
Figure 3
Figure 4
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PULLING CODES reference a six-cylinder engine, the exhaust pulse will occur 240° after the coil fires. The exhaust waveform identified that cylinder #2 had an issue; the question that was still in mind was the cause of the misfire. The coil in cylinder #2 was swapped to cylinder #6 to verify what we suspected. See Figure 5 on page 16. It was clear what the problem was after this was done — a bad coil was the cause of our misfire activity. See Figures 6 and 7. It was interesting to note how the fuel trim and exhaust waveforms proved to be valuable assets in drawing a conclusion to repair. This Pulling Codes case is now solved. TS Figure 6
Figure 7
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MAXIMIZING TOOLS
Unconventional Diagnostic Methods, Part 2 The first installment of Unconventional Diagnostic Methods can be found at http://bit.ly/16zhyTw. Here we delve further into features and functions of DMMs. Almost all multimeters can measure “alternating” (AC) and “direct” (DC) voltages. However, many multimeters can’t correctly display DC voltage in the AC mode because of the simplified measurement circuit. Most all DMMs can’t display AC voltage properly while in the DC mode either. Additionally, if the waveform being measured is not a true sine wave, the meter will often display wrong values. Figure 1 is an example of a sine wave, while Figure 2 is an example of a more complex waveform. Most DMMs would correctly read the average value of the waveform in Figure 1 as 0.707V. To avoid read errors when measuring signals that are not true DC or true sine waves, choose a DMM
Figure 1: A sinewave. Most DMMs Figure 2: Many DMMs will have will correctly read the average difficulty reading the average voltage here. voltage here.
that says it is a true RMS meter. Non-true RMS meters “assume” that all AC signals are sine waves. A DMM with the proper specifications can also stop you from diagnostic mistakes. Figure 3 shows how a meter set to the AC scale gives a voltage value double of what it actually is. Since the battery produces no AC voltage, the correct read-out should be 0V as shown on the DMM on the left. Even though there are very few signals present in a vehicle that are true AC, the measurement mode is useful in other circumstances as well. A DMM in the AC measurement mode will also show pulsating or on/off DC voltages. On/off voltages are very com-
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Figure 3: Comparing two DMMs connected to a 9V battery.
mon in modern vehicles. A DMM of the proper type can be used to discern between a continuous and an on/off DC voltage. If it is an on/off signal, the AC measurement mode will show some value. For example, a 5V signal that is “on” half the time and “off” half the time will show 2.5V in both the DC and the AC measurement modes. If the meter reads something other than 2.5V, the meter cannot properly read the voltage (not a true RMS meter), or the ratio of “on” time to “off” time is something other than 1. It should be mentioned that the ratio is usually expressed as the ratio of “on” time to the total cycle time and the ratio is called duty cycle. A signal with half the time “on” and half the time “off” is said to have a 50% duty cycle. Some meters can read the duty cycle directly. DMMs can also measure AC and DC current in addition to AC and DC voltages. Generally, no extra equipment is necessary to measure current; perhaps, except for the meter fuses if you blow them. Most meters are limited to 15-20A maximum current before the fuse will blow. The fuses tend to be expen-
Olle Gladso, Vladimir Postolovskyi and Andrew Bezhanov Contributing Writers and Instructors at Riverland Technical and Community College in Albert Lea, MN
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MAXIMIZING TOOLS
Figure 4: Measuring AC and DC current on a fuel pump circuit.
sive compared to normal automotive fuses. You may be tempted to replace them with inexpensive fuses, but don’t do that. The proper fuses are designed to break the circuit even if high voltage and current is present. The cheaper fuses may allow an arc to be sustained and cause damage or death. One potentially major problem with using a DMM to measure current is that the circuit must be opened up to connect the meter. For higher current measurements and for using an oscilloscope to measure current, a current probe will be necessary. Unfortunately, these can be quite expensive. Why use an oscilloscope? In order to create a diagnostic method, you must first learn the operating principles of the system or circuit. An oscilloscope is ideally suited for this purpose, because it allows you to “look inside” the circuit. Once the circuit and its operating principles are understood, it is possible to simplify the procedure and to use simpler and cheaper devices for diagnosis “in the field.” A DMM will often not be as accurate as an oscilloscope, but the result is usually good enough to determine if the circuit is operating as intended or not.
As stated earlier, current can be measured by a DMM directly. Since we need to open the circuit to insert the meter, it is sometimes necessary to cut a wire. This should be avoided at all costs, since it compromises the integrity of the wiring harness and can make it difficult to find problems in the future. The easiest access to measure current is at the fuse. To do this, use a fuse adapter and connect the DMM to the adapter. There should be a fuse in the adapter to
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MAXIMIZING TOOLS prevent damage to the vehicle’s wiring or the meter itself. Using a fuse adapter usually makes it easy to measure current from, for example, the fuel pump. Is there a purpose in measuring fuel pump current? The fuel pressure and/or a restricted fuel filter can’t be accurately determined based on current consumption because different fuel pumps have different power requirements. Even if the current consumption data is inaccurate, it can still be useful for giving an initial direction in the troubleshooting process. Now, we are going to go one step further and compare the different values obtained when measuring “direct” vs. “alternating” currents. Most fuel pumps have a commutator-type motor, which has brushes that will intermittently lose contact with the armature as the brushes move from one commutator bar to the next. We can’t readily look inside the motor to determine the degree of wear of those brushes. Wornout brushes are often diagnosed as a failure of the pump’s mechanical parts, such as the impeller. The actual failure is technically unimportant since the fuel pump will need to be replaced in either case. Since there is intermittent brush contact with the armature, current consumed by the fuel pump motor will be in the form of an uneven or pulsating (on/off) DC current. As the brushes and/or the commutator wear out, the contact will gradually get worse, with more and more uneven current. As the amount of ripple (or on/off) current increases, the steady or DC current part of the total current will decrease. A fuel pump consumes a certain amount of power to pressurize the fuel. Where the brushes don’t make contact, the motor will slow down, and where contact is re-established, the motor will speed up. This increases wear and tear on the commutator segments that do
make contact, causing ever larger areas of poor contact. Eventually the flow and/or pressure of the fuel pump will be affected — it will increase, reducing the flow rate and pressure of the fuel pump. If the fuel pump stops on a commutator segment that doesn’t make
electrical contact, the pump will not restart. This occasionally happens when a vehicle with a worn fuel pump is shut off. The vehicle won’t restart. A common “test” is to knock or bang on the fuel tank while attempting to start the vehicle. The vibration may
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MAXIMIZING TOOLS
Figure 5: An oscilloscope image showing the current waveform from a pump with worn brushes.
move the brushes or the commutator just enough to re-establish electrical contact. If the vehicle restarts, it’s assumed that the problem is the fuel pump, which it often, but not always, is. A very common situation that many have experienced is when a no-start vehicle is towed in. Upon initial diagnosis, the vehicle starts and runs with no problem detected. This scenario may or may not be connected to the fuel pump since the vibration from being towed in may have affected any number of electrical connectors, modules or relays. One simple method that can be used to verify is as follows: Use a fuse adapter and insert in the fuse box instead of the fuel pump fuse. Connect your DMM set to the 10A scale or your current probe to the adapter and start the engine. Measure both the AC and the DC component. See Figure 4 on page 22. If the AC current value is approximately 10% of the DC value or less, then the brushes and/or the commutator in the fuel pump is in good condition. If the AC current is approximately 50% of the DC current or more, the fuel pump needs to be replaced. Figure 5 is an oscilloscope waveform taken from a
fuel pump with severely worn brushes. Notice that the DC and AC component as shown on a current clamp is almost equal at 2.3 and 2.5A, respectively. A good fuel pump will have a fairly substantial “inrush” current on initial start up. This is because a stalled armature basically represents an electrical short. As the armature starts to move, electrical current is induced into the windings. This is because the windings move in a magnetic field. The induced current is in the opposite
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TPMS TOOLS
TPMS Torque Wrench Bundle The nut and grommet seals are one-use items that have very specific torque specifications. These specifications are measured in inch-pounds and not foot-pounds, so a TPMS-specific torque wrench is your best option for making sure the range is right. These kits are typically bundled with the right tools for nuts, stems and self-tapping screws. If you choose to use the “feel” method and conventional tools, you’ll be stripping nuts, breaking sensors and costing your shop more than what a good TPMS torque tool kit costs.
A Better Tire Gauge Buy yourself or the shop a quality tire pressure gauge. A quality tire pressure gauge should have a tolerance of ±1%. Anything beyond 2% can cause you to set tire pressures too low or too high. Also, treat a tire gauge like an expensive torque
Andrew Markel Circle #26 for Reader Service
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Editor, Brake & Front End and Underhood Service magazines amarkel@babcox.com
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TPMS TOOLS wrench. Dropping a gauge from only 4 feet can change the readings — this goes for digital and analog gauges.
inside the tire decreases due to the reduced mass in a given volume. This will cause the TPMS light to come on sooner as the tire cools or heats up.
Tub of Tire Paste
Shorter Air Chucks
Soap is for washing cars, not mounting tires. Trade in the container of soap and water for a tub of tire paste. If you use the soap-and-water mix, you could be leaving enough water inside the tire to change how the pressures react under changing temperatures. Only use mounting paste. The price of a small bucket of paste is less than the cost of a comeback. Dry air and humid air have different properties. TPMS sensors are calibrated to deal with normal ranges of humidity found in the real world. But, if water is trapped inside the tire, it can change how the pressure relates to temperature. Humidity or the amount of moisture in the atmosphere changes the density of air. Surprisingly, more moisture results in lower air density. At high humidity, the air density
The long-style air chuck is great for working on larger trucks, but should not be used on passenger vehicles with TPMS sensors. These chucks can create enough leverage to bend or break an aluminum stem.
Upgrade Your Changer Existing tire mounting machines can benefit with an upgrade to the mounting heads and accessories to prevent TPMS sensor damage. Better mounting heads can reduce the possibility scratching rims and making contact with the sensor. Even new tire irons are being designed to be TPMS sensor and drop center friendly. TS
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07,28 Products_Oct 10/8/13 1:18 PM Page 28
PRODUCTPREVIEWS Diagnostics Tablet Introduced
New Telescoping Magnetic Flashlight & Pick Up Tool
Launch Tech USA has released its latest scan tool, the X431 Launch Pad. With its large 9.7” IPS color touch screen and Windows 7, multiple applications can be utilized simultaneously and at blazing speeds. Performance is further optimized with an automatic vehicle ID and module search feature, greatly reducing the technician’s guesswork and diagnostic time. The Launch Pad’s efficiency is further enhanced with a 30-day free trial of Identifix Direct-Hit. Utilizing symptom or DTC information, Identifix Direct-Hit displays experienced-based confirmed known fixes right on the spot. Optional modules for a lab scope, sensor simulator, battery tester and J2534 pass-thru device can be added.
Impeltronics announces the release of its LED Telescoping Magnetic Flashlight Pick Up Tool that provides the following features and capabilities. The main functionality of this LED Magnetic Flashlight Tool offers the ability for the user to find and retrieve objects in hard-toreach areas. The magnets in both the head and tail end of the flashlight permit the recovery of magnetic objects. This product is constructed of rugged aluminum and includes a stainless steel clip. The LED head, also made of aluminum, contains three bright LEDs. The flashlight head is attached to approximately 3” of sturdy flexible metal for multi-directional applications.
Launch Tech USA Circle #67 for more information
Impeltronics Circle #68 for more information
Maintenance Reminder Reset Procedures Manual Receives Major Update Autodata Publications has released its 2013 Maintenance Reminder Reset Procedures manual. The new manual guides technicians through the specific steps required to reset vehicle maintenance reminder alerts, which are often complicated to adjust and must be reset after any maintenance work. The new manual, which covers thousands of domestic and import vehicles built between 2002 and 2013, uses information compiled by highly experienced Autodata technicians and contains vehicle-specific, step-by-step instructions and clear illustrations to ensure an accurate job. Autodata Publications Circle #69 for more information Circle #28 for Reader Service
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Guess The Tool! Win $50! Have some fun with TechShop! Our Guess the Tool contest keeps you guessing each issue.
What type of tool or equipment does this picture represent?
#17
If you think you know the answer, go to www.TechShopMag.com and click “Guess the Tool” on the nav bar. Submit your answer and contact information. A winner will be randomly selected from correct entries by the TechShop staff and awarded $50.
The deadline to enter is November 20, 2013. The winner’s name will appear in the December issue of TechShop.
#16 Contest #16’s Guess the Tool winner is Justin Rothenhauser, CEO, at All Hours Automotive in Columbus, OH. Justin’s correct answer of Brake Flush Machine won him $50! Be sure to try your guess at contest #17. You could be our next $50 winner! Rules: Only one winner will be selected. Chances of winning are dependent upon the number of correct entries received. Employees of Babcox Media, industry manufacturers and TechShop advertisers are not eligible to enter.
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October/November 2013 | TechShop
! D E V L O S
31 Top 5 Tools_Oct 10/8/13 1:37 PM Page 31
TOP 5 TOOLS The Top 5 Favorite Tools of Top Technicians Paul Brow, president All Car Specialists, Inc. San Gabriel, CA www.all-car.com
Zetronix Lambda Test Probe — You can drive a car under all conditions and see what the fuel mixture is at any time. Power Probe and The Hook — These tools make locating electrical faults easy. Fluorescent dye and light — Makes it easy to locate leaks. TS
Identifix — This information system is constantly updated. Snap-on Vantage Pro — Easy to hook up and has a good waveform library.
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PRODUCTPREVIEWS LED Slim Light Bar The Beta Tools of Italy 1838SL LED Slim Light Bar eliminates the problem of dead flashlight batteries. It provides the user with two power-source options. It comes with a plug for the 12volt outlet inside the car and it also comes with a plug that has two alligator clips to use on the car battery terminals for working outside the car. Its slim design gives the user access to hard-to-reach areas that traditional lights can’t access. Beta Tools Circle #70 for more information
SAE J2912 Approval for First Portable, Dual R1234yf & R134a Analyzer Neutronics Refrigerant Analysis has received SAE J2912 approval for the world’s first portable, dual refrigerant analyzer designed for both R-1234yf and R-134a. The RI-2012yf design maintains Neutronics’ award-winning attributes, including an optional built-in printer and “fender friendly” design, while adding many new features as standard. An internal LiFe battery, AC power supply, USB port for connection to an SAE J2843 A/C service machine and an “Unknown” channel for detection of R-40 and other refrigerants are just a few of the standard elements in this new design. Visit RefrigerantID.com. Neutronics Inc. Circle #71 for more information
New ScanTool System Released AutoEnginuity recently announced the worldwide release of ScanTool 11.2 for the Windows platform. ScanTool is a vehicle diagnostics system for the professional vehicle service industry. The ScanTool 11.2 release adds new features and improves coverage for U.S., Asian and European enhanced. Key features for this release are: added late-model BMW diesel system functions; improved GM light trucks 2000-’05 bitmapped sensors coverage; added Jaguar XF 10+ diesel system functions; added late-model Nissan diesel support for European models; and improved Toyota sensor and actuation coverage matrixes by using the updated method of reading coverage from the vehicle’s memory. Visit www.autoenginuity.com. Circle #32 for Reader Service
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AutoEnginuity, LLC Circle #72 for more information
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Switch from Glasses to Goggles in a Snap SAS Safety Corp. adds Gloggles to its extensive safety protection product catalog. With three lens color options, Gloggles demonstrate the ease of switching from glasses to goggles with a simple push, pull and snap. Gloggles feature a foam padding that forms a snug fit to keep out dust and airborne particles while providing 99.9% protection against UV rays along with anti-fog and scratch-resistant coating on the lenses. In addition, Gloggles float, preventing the burden of losing eyewear. SAS Safety offers a complete line of respiratory, hearing, eye, hand/body protection products, first-aid kits, absorbents, spill containments and safety accessories. SAS Safety Corp. Circle #73 for more information
The Ultimate in Mobile Diagnostic Systems
PRODUCTPREVIEWS
Versatile Line of Trim Panel Sets Launched Dent Fix Equipment’s new Trim Panel Scraper Set (DF-620TPS) is a 12-piece set for easily and safely removing interior and exterior trim pieces. The tools help remove A/C vents, door trim clips, dashboard pieces, plastic track guards around carpet openings or any delicate pieces that need to be removed. Instead of breaking these delicate parts and have to order new, they now can be saved and reused. The 11 hard plastic pieces are double-sided to provide a wider range of options to get the job done. Dent Fix Circle #74 for more information
The new Snap-on Diagnostic WorkStations (available in 55” [KRSC2476PBO] and 36” [KRSC2407PC] sizes) bring all key diagnostic equipment into one convenient location. The 55” Diagnostic WorkStation Plus features five 32” wide drawers, including an extra-deep printer drawer. An integrated side cabinet has shelves and a locking door to provide security for large test equipment. The cabinet also offers cord routing throughout with convenient access to the rear power strip. The adjustable monitor bracket is designed to fine-tune the viewing angle of the included 40” monitor and will also accommodate most other monitor sizes. The foam drawer organizers keep test adaptors and components neatly organized. Snap-on Tools Circle #79 for more information
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PRODUCTPREVIEWS LED Lighted Safety Glasses AutoZone has added Panther Vision’s LIGHTSPECS Vindicator LED Lighted Safety Glasses to their Safety set. With their Ultra Bright LEDs, sturdy construction and ANSI Z87+ specifications, LIGHTSPECS Vindicator LED Lighted Safety Glasses fit right in with AutoZone’s pledge to provide the best merchandise at the right price. “These safety glasses are the perfect tool for working on your car, in the garage or in the workshop,” says Mike Carter, Panther Vision’s general manager. Check out the new LIGHTSPECS Vindicator LED Lighted Safety Glasses at the AutoZone website. AutoZone Circle #80 for more information
Revolutionary Impact Ratchet Wrench The ONYX 3/8” Reactionless Impact Ratchet Wrench (P/N 1143) from Astro Pneumatic features a unique reactionless impact mechanism, which absorbs kickback and thereby prevents the operator’s wrist from fatigue and/or injury. The “precision forged” ratchet yoke is made of Cr-Mo alloy steel with optimized heat treatment to maintain peak performance and prevent “spreading,” which makes other air ratchets lose power. The tease throttle provides smooth variable speed control. Other features include: forward/reverse selector with safety lock to prevent slipping; built-in twin expansion chamber divided by airflow guide fins to reduce exhaust noise; and 360° adjustable exhaust. Astro Pneumatic Tool Company Circle #81 for more information
The Ultimate Motorsports Jack System Ranger Products, a division of BendPak, recently unveiled its new QuickJack portable jack system that makes vehicle maintenance on the track and off convenient and lightning fast. The 3,500-lb. capacity lightweight QuickJack can go anywhere and can be easily stowed in the trunk or back seat of most cars. Simply position the lightweight jack frames under the vehicle, push the raise button on the remote hand-held pendant control and in less than 10 seconds the entire car is almost 2’ off the ground. The QuickJack collapses to a low 3” profile. Features open-center design, rugged safety lock bars, remote pendant control on a 20’ cord, quick-connect hoses and a built-in flow divider for precisely equalized lifting. Visit www.quickjack.com. BendPak-Ranger Circle #82 for more information Circle #34 for Reader Service
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New and Improved Impact Wrench King Tony America introduces the Mighty-Seven (m7) model NC-4611Q. This 1/2” drive impact wrench is smaller, lighter and faster (10,000 rpm free speed) and just as powerful as its predecessor with 500 bolt-breaking ft.-lbs. of torque. The new NC-4611Q also is smaller (43/8” overall length), allowing you to reach even tighter spaces than before. User fatigue is minimized with an improved feather weight of only 3.3 lbs. The NC-4611Q is available for order now; for the name of your nearest distributor contact sales@kingtonyamerica.com or call toll-free at (877) 708-6657. Visit www.kingtonyamerica.com. King Tony America Circle #83 for more information
PRODUCTPREVIEWS New, Compact Rotary Screw Compressor Atlas Copco recently introduced a new, very compact oil-injected rotary screw compressor from 7 to 37 kW: the 7-37 GA VSD+. Besides a small footprint, it offers a leap forward in Free Air Delivery (improvements of up to 12%), and a breakthrough in energy-efficiency — it requires on average 50% less energy than a comparable idling compressor. With the GA VSD+, a variable-speed drive compressor achieves better performances even at full load than a comparable idling compressor. Atlas Copco evaluated every part — a more efficient fan, robust air intake system, eliminating all blow-off losses, and the best electronic components together with the new drivetrain add up to energy savings of 50% on average compared to a traditional idling compressor of the same type. Atlas Copco Circle #84 for more information
Professional Technical Support Expanded Innova Electronics Corporation has expanded its Innova PRO technical support operating hours for automotive professionals to seven days a week, effective immediately. Automotive service professionals can call the dedicated line 1-877-227-7226 daily from 6:00 a.m. to 6:00 p.m. PST to speak in English or Spanish with an ASE-certified technician located at the company’s headquarters in Irvine, CA. “Our Innova professional diagnostic tools are supported by unmatched technical assistance from an experienced team of ASE-certified technicians,” said Krista Redmond, marketing supervisor. “We view our professional customers as business partners and recognize that they often work all weekend in order to best serve their customers. We understand the importance of being readily available to them every day so they can complete the diagnosis and repair of vehicles quickly, accurately and profitably.” Innova Electronics Corporation Circle #85 for more information
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FEATURE STORY Continued from page 13
important to note that the moisture collected in these traps may not be suitable for disposal in municipal systems. Cartridge-based condensate management systems provide an easy economical solution to this challenge.
Buying New There are some nice side-benefits from a new compressor. Whatever the make, model or style of compressor, expect a new unit to be a lot less bothersome than the one it replaces. Most shop owners will be happier with the lower sound or noise level that’s being built into most machines. Most studies show the number-one end-user requirement related to compressed air is reliability. Compressor downtime means impact wrenches, sanders and other air-driven tools aren’t working. A reliable compressor and a routine maintenance schedule will keep the compressed air system — and all critical shop functions — running smoothly and efficiently. Expect a new compressor to provide higher duty cycles
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as well. Couple that with better air quality and markedly improved efficiency, and a new compressor will be a welcome addition to a shop’s equipment closet. With the benefits from new technology, it would be wise to extend the compressor’s useful life as long as possible. Keeping a compressor in tip-top working order doesn’t require a lot of time. However, it will save a lot of time — and money — if the shop purchases the proper unit to fit its needs and that compressor is well-maintained after installation. When in doubt about any purchase or use decision, contact a qualified air systems professional. The tool vendor you’ve known for years may be a nice guy, but he may not be the person to design your compressed air system or truly evaluate your shop’s specific needs. A modest investment in the right air system components — and a plan for routine maintenance — can save thousands by maintaining shop productivity and product quality. TS Curt Harler is a Cleveland-based freelance writer, specializing in the automotive, technology and environmental areas.
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AIR COMPRESSOR
PRODUCTPREVIEWS Redesigned Rotary Screw Compressor Kaeser Compressors, Inc. has introduced the newly redesigned BSD rotary screw compressors series. Available in 40, 50 and 60 hp with flows from 157 to 294 cfm and pressures to 217 psig, the new BSD compressors deliver “built-for-a-lifetime” reliability, simple maintenance and sustainable energy savings. Kaeser has further enhanced the BSD series’ energy efficiency through a combination of true direct drive design, premium efficiency motors, lower internal pressure differential and optimized airends. Specific power is improved by up to 6%. New features include an enhanced cooling design, eco-friendly filter element, integral moisture separator with drain and an Electronic Thermal Management system. Kaeser Compressors, Inc. Circle #75 for more information
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AIR COMPRESSOR
PRODUCTPREVIEWS Reliable Quality Air for Shop Environments Sullair’s ShopTek is an ideal air compressor for automotive repair shops. ShopTek rotary screw compressors are available in eight models ranging from 5 to 20 horsepower, with capacities from 17 to 78 acfm, and pressures from 125 to 175 psig. The ShopTek package is designed with a small footprint for better utilization of floor space. All models are available with optional tank mounting and the Performance Air System that includes a Sullair refrigerated dryer and a liquid and particulate filter. Sullair Circle #76 for more information
Free, Online Compressed Air & Gas Handbook The Compressed Air and Gas Handbook, the authoritative and widely used reference manual for information about the proper installation, use and maintenance of compressors and pneumatic equipment, is now available online in PDF format. Formerly available only as a 750-page hardbound book for $70, the individual chapters are now available as free downloadable PDF documents on the CAGI website, www.cagi.org. Published in 1947, the first edition of the handbook was a joint effort of the CAGI Educational and Technical Committees. Now in its sixth edition, the illustrated handbook contains engineering information from leading manufacturers and valuable reference data about compressed air systems. The Compressed Air and Gas Institute Circle #77 for more information
Two-Stage, Gas-Powered Compressor with High Air Capacity Jenny Products, Inc. has introduced the W11HGB-30P to its line of two-stage wheeled-portable air compressors. Featuring a powerful gas engine and high-capacity “W” pump, the compressor is equipped with an 11-hp Honda GX-Series engine with electric start. It includes a 30gallon, ASME-certified air tank with a durable powder coat. The compressor produces 21 cfm at 100 psi or 17.6 cfm at 175 psi. Built to withstand tough operating conditions, the compressor includes several features to reduce maintenance and maximize uptime. Splash lubrication with Jenny “Ultimate Blue” compressor-pump oil offers contractor-duty protection of the pistons, crankshaft, bearings, rings and cylinders. Jenny Products, Inc. Circle #78 for more information
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20-24,41 Maximizing Tools-Part 2 10/8/13 1:23 PM Page 41
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MAXIMIZING TOOLS
Figure 6: Start-up current waveform from a good fuel pump.
direction of the applied current and will counteract or “fight” the incoming current. The counteraction causes the current consumption to go down to a value that depends on the load applied to the pump motor. The load is heat, friction and the actual work the motor is doing. The “humps” are caused by the commutation where the brushes move from one bar to the next. See Figure 6. If the fuel pump is experiencing high friction from, for example, worn-out bearings, the steady state (where the motor has settled down) will be higher than normal.
Figure 7: Start-up current from a fuel pump with too high current consumption.
The actual specification will vary some, depending on the fuel pump type and the normal system pressure. Higher system pressures will cause higher current draw. See Figure 7. It’s advisable to test several good fuel pumps to get a feel for what normal values are. The final installment of “Unconventional Diagnostic Methods” will be featured in the December issue. TS
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CLASSIFIEDS
AD INDEX
TECHSHOPMAG.COM
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Advertiser Name . . . . . . . . . .Page Number Alert Stamping . . . . . . . . . . . . . . . . . . . . . . .37 Atlas Copco Compressors LLC. . . . . . . . . .9, 41 Autel.us . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Autodata Publications . . . . . . . . . . . . . . . . .24 Bartec USA, LLC . . . . . . . . . . . . . . . . . . . . . .26 BendPak . . . . . . . . . . . . . . . . . .5, 6, 39, 40, 43 BlueDevil Products . . . . . . . . . . . . . . . . . . . .31 Campbell Hausfeld . . . . . . . . . . . . . . . . . . . .13 Chicago Pneumatic . . . . . . . . . . . . . . . . . . . . .7 Coastal Boot . . . . . . . . . . . . . . . . . .Cover 2, 37 Dill Air Controls . . . . . . . . . . . . . . . . . . . . . .27 Drew Technologies . . . . . . . . . . . . . . . . . . . .25 Durofix Inc . . . . . . . . . . . . . . . . . . .18, Cover 4 Florida-Pneumatic . . . . . . . . . . . . . . . . . . . . .33 Homak Manufacturing Company Inc. . . .Cover 3 Hunter Engineering Co. . . . . . . . . . . . . . . . . .16 Induction Innovations . . . . . . . . . . . . . . . . . .35 Innova Electronics Corp. . . . . . . . . . . . . . . . . .1 K-Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Kaeser Compressors . . . . . . . . . . . . . . . . . . .10 Launch Tech USA . . . . . . . . . . . . . . . . . . . . . .15 Mitchell 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Mohawk Lifts . . . . . . . . . . . . . . . . . . . . . . . .32 Pacific Automotive Industries . . . . . . . . . . . .28 Plyworx . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 Precision Instruments, Inc . . . . . . . . . . . . . . .11 Schumacher Electric Corp. . . . . . . . . . . . . . . .21 SK Hand Tool . . . . . . . . . . . . . . . . . . . . . . . . .23 Steck Mfg. Co. . . . . . . . . . . . . . . . . . . . . . . . .34 Streamlight . . . . . . . . . . . . . . . . . . . . . . . . . .22 SULLAIR Corporation . . . . . . . . . . . . . . . . . . .29 Sullivan Palatek . . . . . . . . . . . . . . . . . . . . . . .12 Tracer Products/Spectronics Corp . . . . . .38, 44 Zendex Tool Corporation . . . . . . . . . . . . . . . .43
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