Michelin technical bulletin, november 2003 goodyear says 15% underinflation 8% less tread mileage and 2. Only a few psi difference from vehicle manufacturers recommended tire inflation pressure can affect a vehicles handling and stopping distance. Tire pressure maintenance a statistical investigation. If you are new to myers tire supply, please register as a new user above. Pressureguard routes air from the trailer air supply tank to the tires to maintain pressure at a preset level. Psi is your source for automatic tire inflation system resources, installation videos, maintenance info, drivers checklists, parts books, and more. As the rotary joint continuously moves its life is limited it needs to be replaced after sometime time but with proper maintenance it can work for longer duration of time. Goodyear radial truck tire and retread service manual. We have developed an automatic tire inflation system that ensures the tires are properly inflated constantly. Standard thermalert wheelend heatsensing technology immediately alerts drivers to overheating wheel ends. Use the inflation table that corresponds to the replacement tires load range.
When your tires are at full psi, you are going to have a rough ride and less traction offroad. Design and fabrication of automatic tyre inflation systemmechanical project abstract. Manual cti systems have been used in iceland for snow driving purposes in modified 4x4 vehicles and are getting more popular. In one embodiment, a conduit having an internal gas passage threadably connects the tire tube inflation valve to a sealed cartridge containing a requisite volume of pressurized gas to inflate a mounted tire. Psi is the leader and original innovator in automatic tire inflation system for trucks, trailers, and fleets.
A check valve located at the knurled end of a hose allows air to. In this episode, i head over to my good friends garage to put together a 4 tire inflationdeflation system for airing up and down tires when out on. Today, it is widely accepted that a reliable tire inflation system can play an important role in modern farming. As we are aware that by drop of few pressure units in vehicle its results in the reduction in mileage, tyre life, safety and performance. Design of an automatic tyre pressure inflation system. Diy 4tire inflator and deflator offroad system, 4way. Meritor tire inflation system wheelend components part number description 3260101a. Air lines between the pneumatic control unit and the quick release valves qrv are called upper control lines. You may submit your information in our contact us form. These part numbers are direct replacements for the meritor psi mtis hoses. Use the procedures in this manual to install the standard tire inflation system and the tire inflation system with thermalert on either new trailer axles at original equipment manufacturers or inservice trailer axles at fleets. An improved central tire inflation system wherein positive air pressure is used to control the air pressure in the associated vehicle tire includes a vehicle wheel assembly having a tire mounted thereon and defining a pressurized tire air chamber, and a positive pressure air source.
Never exceed rim manufacturers limits without permission of component manufacturer. Automatic tyre pressure inflation system mechanical. If there is a ctis installed to your vehicle you can also use the second valve stem to fill and control the air pressure of. Spicer ctis helps to increase traction, productivity, crop yield, and tire life. The invention relates to a system for inflating tire tubes, more specifically the inflation of bicycle tire tubes either a schrader or presta type inflation valve. This preemptive warning and automatic inflation system can avert additional tire damage, excessive wear, blowsouts and damage to other vehicles sharing the road. A normally closed inflation valve is connected between the tire air chamber and the positive pressure air source. Similarly, underinflation negatively affects fuel economy. A check valve located at the knurled end of a hose allows air to flow in only one directiontowards the tire.
Equipped on more than 1 million trailers, meritor tire inflation system mtis helps keep tires properly inflated to reduce wear and increase fuel economy. Alarms alert the operator if the wrong pressure is used at a tire damaging speed. Pdf impacts of central tire inflation systems application on forest. Poor tire maintenance can increase incidences of blowouts and tread separations. Cp rire prassure setting range pro tire pressure setting presswe check intervol minimum operating am,p current one tire in metric psi b5to continuous 9 volts 10 psi. The underinflation of pneumatic tires, a typical problem in sedans and light duty vehicles, affects the vehicles handling characteristics. So you may control the tire pressure as well at the normal valve. Equipped on more than 1 million trailers, meritor tire inflation system mtis harnesses your trailers existing air supply to keep your tires fully inflated when your vehicle is in operation, helping to save you money and adding profit to your bottom line. Tireboss is a fully selfcontained central tire inflation system ctis to inflate or deflate tires to predetermined setpoints.
If a tires pressure drops below the preset level, compressed air will replace the lost volume and return the tire to proper inflation levels, to reducing wear and improving fuel consumption. Stemco automatic tire inflation system replacement hoses. Pdf central tire inflation systems ctis have been introduced to forestry transportation in the last 30 years to the point the forest industry is. Offroad tire inflation and deflation with a fourtire deflator system. Hendrickson tiremaax tire inflation system manual hendrickson has released the tiremaax tire inflation system manual, l818. Select the correct inflation table and find the load carrying capacity of the oe tire. The parker nitrogen tire inflation systems michelin supports the use of nitrogen based on its ability to better retain pressure over a period of time. Stemco automatic tire inflation system replacement hoses stemco automatic tire inflation system replacement hoses provide a more durable option for keeping your tires properly inflated. Maintenance manual 14p meritor tire inflation system mtis. Schematic view of tire pressure inflation system the required pressure is filled then the pressure switch will be deactivated the solenoid valve so that the tire pressure will be maintained in constant level. Automatic tire inflation system rarely have any disadvantage but there are quite a few.
System overview the hendrickson tiremaax tire inflation system is available in two versions. Significant aim of introducing this system is to decrease of 0. The patented sealing system is designed for long life and low maintenance, and will not compromise the life of your wheel. Tiremaax pro, an advanced automatic tire pressure control system for the trailer industry that is capable of actively inflating or relieving the tires to a preset pressure level. Every tibus bead lock wheel is equipped with two filling connectors. Stemco pn description st 857 replaces meritor psi 36300 19. General information operation components installation service troubleshooting glossary system overview the tiremaax tire inflation system is designed to automatically inflate tires that are below their target. Pressureguards durable system components require minimal service and replacement, and most components can be reused when servicing wheel ends. All systems allow technician remote control of inflationdeflation process, keeping themselves out of blast zone of tire. Central tire inflation systems ctis have been introduced to forestry transportation in the last 30 years to the point the forest industry is one of the biggest users of the technology pletts 2006. For more than 20 years, meritor has reduced industry concerns with tire pressure loss. Field when the vehicle travels offroad, the system deflates the tires to 0. The principle components of ptgs central tire inflation systems, ctis, are a dualline system with seals at nearly zero pressure in the air transmission unit, a main control unit based on a proportional valve system, and various. Further, it delivers a number of unique attributes and critical functions that competing systems simply cannot provide.
Air lines between the qrvs and the wheel valves are called lower control lines. Whenever there is a drop in pressure from the recommended pressure, this solenoid valve. Air from the existing trailer air supply is routed to a. Driven by studies that show that a drop in tyre pressure by just a few psi can result in the reduction of gas mileage, tire life, safety, and vehicle performance, we have developed an automatic, selfinflating tire system that ensures that tyres are properly inflated at all times. Driven by studies, if there is a drop in tire pressure by a few psi can result in the reduction of gas mileage, tire life, safety, and vehicle performance. Installation and maintenance manual 14p meritor tire. Our design proposes and successfully implements the use of a. Borade, 2gopinath keskar, 3yash girme, 4digambar ghevade, 5akshay shelke. On the replacement tire you recommended, find the load index use the store system or the tire itself. Meritor tire inflation system control box components part number tube length description 31421 10.
When hitting the trails, you want lower tire pressure in order to maximize traction and help smooth out some of the rougher patches. Automated automotive tire inflation systemeffect of tire pressure. Automatic tyre pressure inflation system mechanical and automobile ieee project topics, thermal engineering base paper ideas, synopsis, abstract, report, figures, full pdf, working details for mechanical engineering me, diploma, btech, be, mtech and msc college students. Each inflation setpoint is calculated for tire speed, load, and situation. Central tyre inflation system has for many years been used on military vehicles where improvements in mobility has been the major requirement. The central tire inflation system uses a dedicated pneumatic system plumbed from the vehicles exiting supply tank. Pdf the paper presents the results of the research project adtyre that is concentrated on the development of dynamic tyre pressure control systems.
Automatic control and user interface for central tire inflation system. Guidelines for specifying the correct kits for the meritor tire in. Please consult rim manufacturers load and inflation limits. Central tire inflation systems for agricultural vehicles. Meritor tire inflation systems mtis cornhusker 800. The air pressure of the tires needs to be maintained at ideal level for better running of vehicle and for its safety purposes. From increased tyre wear and fuel consumption through to ground compaction and increased driver fatigue, there are many links between poorly optimised tire pressures and poor vehicle performance. The standard meritor tire inflation system mtis the meritor tire inflation system mtis uses compressed air from the trailer to inflate any tire that falls below the system air pressure setting during operation. All stemco atis replacement hoses include an easily accessible fill and pressure check port no more disconnecting hoses and risking oring damage to check. All haltec automatic tire inflation systems are designed to be operated with specific haltec air chucks. We have developed an automatic tire inflation system. The heart of the tibus central tire inflation system toctis4 is the tibus pd6606 12 vdc air compressor with 100% duty cycle. This protects each tire from loss of air pressure if the tire inflation system, or any tire, loses air pressure during operation. Problem is, if you run tires marked 120 max inflation and only air them to 75 psi because you run light, you arent far from the 60 psi where theyll say you have flat tires.
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