Stengel Bros. Inc.
Cat's Eye Tire Pressure Maintenance System

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Cat's Eye Tire Pressure Maintenance System
Complete Tire Pressure Maintenance Systems shipped directly to your door step

With just a glance, dual tire pressures can be checked on efficient walk-arounds with the Cat's Eye tire pressure maintenance system.

The Cat's Eye makes it easy to see if your tires are underinflated. This system attaches to the dual's hub or lug bolt and allows air transfer from one tire to the other. Its single airing point fills both tires at once, making the job quick, clean and easy. With just a glance, you'll instantly see changes in tire pressure.

The bright yellow "eye" of the Cat's Eye, opens up slightly if dual tire pressure falls 10-15% below the recommended pressure setting. If corrective action is not taken, the "eye" will open up completely, activating the internal check valve. The internal check valve will prevent the good tire from going flat in the case of a tire blowout or a broken pressure hose.

Cat's Eye is available with rubber or stainless steel hoses in lengths of 12", 14" or standard 16".

Ordering Guide
Unit Part Number
Replacement Parts
Operating Tips
Troubleshooting
Installation Instructions (pdf)
 
Are you willing to bet your profits that your inside duals are not under inflated? Underinflation is the single most costly element of tire maintenance. Even small pressure losses are not only costly–they can prove dangerous, playing havoc with schedules, profits, and safety.  Underinflated tires cause unnecessary heat to prematurely damage tire casings, eat away tire tread and increase rolling resistance. The penalty is high–higher fuel bills, less miles per tire, inability to retread casing and sometimes missed deadlines.  As costly as that is, most drivers are not prepared to babysit the pressure in those tires. It is a dirty, time consuming task. Drivers need a reliable way to be aware of low tire pressures in a cost effective manner.

how?

Cat’s Eye makes it easy to see if your tires are under inflated. This system attaches to the dual’s hub or lug bolt and allows air transfer from one tire to the other. Its single airing point fills both tires at once, making the job quick, clean and easy. With just a glance, you’ll instantly see changes in tire pressure. When the “eye” is completely closed, the tires are within 2% of recommended pressure and are equalized   As the “eye” begins to open, the pressure has dropped 5-6%, a sign of a slow leak.  When the “eye” is completely open, the pressure has dropped 10% under the recommended pressure and needs immediate attention. At this point, the internal check valve is activated, isolating the good tire from additional pressure loss.

The Cat’s Eye internal check valve prevents both tires from going flat in the event one tire develops a leak, blows out or when one of the pressure

simple steps

Installing the gauge is a quick and easy process. The new seal will stand up to sharp valve stem edges and repeated installations. Cat’s Eye comes with wheel and hub mounting brackets Position valve stems 180° across from each other

 

Make sure they are clean and in good operating condition.  Attach the Cat’s Eye gauge to the wheel or hub with the appropriate mounting bracket Finger tighten hose ends, inside tire first, until you hear the seals take hold.

 

Give each fitting an extra 1/2 turn to ensure a tight seal. Then bubble test. (See the complete installation instructions when installing Cat’s Eye.)

 

 

equalize, equal size

If the pressure in your duals is not the same, the diameter of the tires will not be equal. Since duals are bolted together, the smaller tire is going to be dragged by the larger tire.

 

 

Case Study by Bridgestone:

When the inside tire has a mere 5 psi less than the outer tire:

Findings:

1. The diameter of the inner tire is 5/16'' less than the outer tire.

2. With a 5/16'' difference in diameters, the outer tire will cause the inner tire to drag 13' per mile.

3. In just 35,000 miles, the tread of the smaller tire will have been scuffed off for 86 miles.

4. The added resistance makes BOTH tires wear faster.

If the pressure difference is greater, so is the damage. The easiest way to insure that both tires are equal size, is to equalize the pressure

Tire manufacturers estimate a loss of

$177 per year due to treadwear and fuel costs

for each tire running 30% underinflated.

 

The Cat's Eye (tire pressure maintenance system) is available in packages of 2 or 4, rubber or stainless steel hoses and in 12", 14" and 16" lengths. Standard 16" hose length is listed below.   Click part number and select hose length based on the size of the tires.
2 UNIT RETAIL BUBBLE PACK   4 UNIT BOX
PSI Rubber Rubber Super Single Stainless   PSI Rubber Rubber Super Single Stainless
60 6060-AA00 6060-AC00 6060-AB00   60 6060-BA00 6060-BC00 6060-BB00
65 6065-AA00 6065-AC00 6065-AB00 65 6065-BA00 6065-BC00 6065-BB00
70 6070-AA00 6070-AC00 6070-AB00 70 6070-BA00 6070-BC00 6070-BB00
75 6075-AA00 6075-AC00 6075-AB00 75 6075-BA00 6075-BC00 6075-BB00
80 6080-AA00 6080-AC00 6080-AB00 80 6080-BA00 6080-BC00 6080-BB00
85 6085-AA00 6085-AC00 6085-AB00 85 6085-BA00 6085-BC00 6085-BB00
90 6090-AA00 6090-AC00 6090-AB00 90 6090-BA00 6090-BC00 6090-BB00
95 6095-AA00 6095-AC00 6095-AB00 95 6095-BA00 6095-BC00 6095-BB00
100 6100-AA00 6100-AC00 6100-AB00 100 6100-BA00 6100-BC00 6100-BB00
105 6105-AA00 6105-AC00 6105-AB00 105 6105-BA00 6105-BC00 6105-BB00
110 6110-AA00 6110-AC00 6110-AB00   110 6110-BA00 6110-BC00 6110-BB00
115 6115-AA00 6115-AC00 6115-AB00 115 6115-BA00 6115-BC00 6115-BB00
120 6120-AA00 6120-AC00 6120-AB00 120 6120-BA00 6120-BC00 6120-BB00
125 6125-AA00 6125-AC00 6125-AB00 125 6125-BA00 6125-BC00 6125-BB00

 

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