Freightliner inertia brake

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Track my order s Anti-bot validation. Sign in Register Email.Clutch brakes have been saving transmissions for nearly years and are just as vital now as they ever were. Clutch brakes are employed to ease shifting and prolong transmission life in nearly all applications that use non-synchronized transmissions. This can include everything from heavy industrial applications to diesel trucks to sport bikes.

Most manual-equipped vehicles use a a system of toothed, rotating plates called synchronizers to ease shifting when the driver fails to perfectly match RPM.

The biggest problem with synchros is that they see a lot of wear and so are not suitable for high-torque or high-powered applications. Makers of large industrial equipment often install non-synchronized transmissions in their products, reasoning that the operator will be a professional capable of shifting without the synchronizer's mechanical assistance.

Whereas any well-trained driver can match RPMs well enough to eschew the clutch entirely, even the most experienced can't force a moving input shaft to engage a stationary drive gear without synchronization. As such, there must be some way to stop the clutch from spinning with its own inertia when engaging first gear, which is where clutch brakes come in.

Clutch brakes usually resemble either drum brakes or automotive clutches. When the driver pushes the clutch pedal all the way to the floor, the clutch brake engages to stop the transmission input shaft from turning. Either stock or aftermarket clutch brakes can be operated by an electrical, hydraulic or pneumatic system, but most are simply attached to the stock clutch assembly and utilize factory hardware for engagement. Vehicles that start and stop a lot like tractors and dump trucks often experience premature clutch brake failure.

If you've ever been sitting at a stoplight next to one of these trucks and heard a loud metallic grinding when the light goes green, then more than likely you're hearing the sound of a bad clutch brake. Worn clutch brakes can force the driver to strong-arm the transmission into first, which is the leading cause of first-gear failure in these heavy applications.

Since non-synchro transmissions are capable of handling more power than standard ones, they are often used on racing-oriented applications.

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Clutch brakes can often be found on dirt bikes, sport bikes and Rotax-Power snow mobiles. The same problems that apply to heavy-use clutch brakes apply to smaller ones, but these tend to last longer than thier heavier cousins. This is due in part to the fact that dirt bikes and snow mobiles don't spend much time in traffic but has more to do with their smaller clutch's low-rotating mass.

A lower-rotating mass means it takes less force to stop its movement, which puts less wear and tear on the clutch brake. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.Quick Links. See also: Service Manual. Installation Guide. Table of Contents. Page 2: Important Notice Always use genuine Eaton replacement parts.

Every effort has been made to ensure the accuracy of all information in this guide. However, Eaton makes no expressed or implied warranty or representation based on the enclosed information. This section will help the user understand every step that is required in understand what PTO will fit the customer's requirements. Engine Torque Limit for Info. Thru- Int. Speed PTO use lb-ft 33T 6.

Speed PTO use lb-ft 47T 6. Speed PTO use lb-ft 30T 5. Speed for PTO use lb-ft 47T 6. Engine DEG H. The preferred method of application is to use a metered dispensing mechanism that places the material on the socket of the connector.

It is also preferred that the mate- rial be placed immediately prior to connector mating to reduce the probability of contamination. This feature uses pin F1 of the way transmission connector. A switch must be used to activate the Neutral mode of the transmission. This feature uses pin A1 and B1 of the way push button connector.

Frame rail ground is not recommended. This specific mode indicator light feature is for the Eaton push button only. The vehicle interface harness shall be pre-populated at the ECU way connector with wiring and a connector needed to connect the PTO.

The Eaton ServiceRanger tool is the recommended interface for changing the configuration setting. Request from PTO Switch 2. Note: Connector used must be compatible with 18 TXL. Contact dealer for more information. Note: Vehicle can be wired for normally open or normally closed 87 or 87a. PTO Operation Apply the parking brake. To engage the PTO for stationary operation perform the following steps: Apply the parking brake. Depress the service brake. It will start and stop with hydraulic usage.

This kit is only for use with transmissions already fitted with inertia brakes that can be mounted in either location. This is easily determined by the existence of 2 speed sensor adapter ports on the inertia brake casting.

Note: Take care not to damage harness. Protect connector ends from dirt contamination. Disconnect oil hose from inertia brake and transmission case.

Remove 6 mounting bolts from the inertia brake.Air system. Quarter Fenders.

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Payment options.The present invention relates to an inertia brake for a vehicle transmission. More specifically, the present invention relates to an inertia brake for a vehicle transmission where a ball ramp actuator is used to load a clutch pack according to a control signal where a plurality of tapered pins assist a control coil in activation of a cone clutch which activates the ball ramp actuator.

US5713445A - Transmission inertia brake with self energizing - Google Patents

Transmissions that have their shifting accomplished using actuators controlled by a microprocessor in response to a driver request and various sensor inputs have been developed and are just now entering the marketplace. Sophisticated electronic transmission controls are being used to control shift actuators that act to shift a gear change transmission independent of the driver. When a transmission countershaft and gear assembly having a high rotational inertia is accelerated with the engine, a shift requires the shaft to be released usually by release of a master clutch.

Shifting of such a multiple speed gear transmission without synchronizers requires that the speeds of the gears that are to be meshed be matched so that a smooth gear tooth engagement can take place. A gear on a spinning shaft that exceeds the desired mesh speed synchronous speed must be allowed to slow before the gear shift can be effectuated.

Thus, while the shaft is slowing, there is no driveline link between the engine and the transmission.

freightliner inertia brake

If the vehicle is on an upgrade, especially when pulling a loaded trailer, disconnection of the transmission from the engine allows the vehicle to rapidly slow.

Thus, while waiting for the transmission gear shaft to slow to synchronous speed, the vehicle itself slows enough that the gear ratio originally selected for the shift is no longer appropriate.

The next shift must then be calculated and selected by the electronic control package. Once again, as the electronic controller waits for the gear shaft to slow to synchronous, the vehicle continues to rapidly decelerate until the second selected downshift is no longer appropriate. Eventually, the vehicle comes to a stop without a successful upshift being accomplished. Problems in quickly executing a shift due to the length of time required for a transmission gear shaft to decelerate to synchronous speed results in operational problems as heretofore described.

Also, when a conventional transmission without an electronic control system is shifted, an inertia brake allows shifts to be made more rapidly for improved driver control of the vehicle. To date, various traditional type braking devices have been used to reduce the rotational speed of a spinning transmission shaft. For example, shoe type brakes and disc clutches using springs for loading of a clutch pack have been used.

freightliner inertia brake

The inertia brake devices can be connected to any shaft that is connected to rotate with the input shaft of the transmission including one or more countershafts. The present invention provides for the braking and subsequent slowing of the rotation of a countershaft in a gear change transmission by means of an inertia brake having a clutch pack comprised of a plurality of clutch friction plates which are clamped together by means of a ball ramp actuator where a cone clutch, which supplies a braking force to the control ring of the ball ramp actuator, is further engaged by tapered pins.

The ball ramp mechanism axially expands to provide a clamping force on the clutch pack to frictionally couple the transmission countershaft to case ground.Dangerous Trailers. There is little if any regulation for trailers weighing under 3, pounds. If a trailer is designed to carry 3, pounds, it must have a working braking system. Two types of braking systems are available: inertia trailer brakes and the electric trailer brakes.

Electric brake controllers are automobile original equipment manufactured or aftermarket-installed device modules. They activate the trailer brakes and are needed if the trailer uses electric brakes.

freightliner inertia brake

The controllers are mounted on or underneath the tow vehicle's instrument panel on the driver's side. The controllers can come in different product classes, such as proportional or inertia brake controllers. Electric brakes feed power from the tow vehicle's brake lights into the controller. The trailer brakes are activated by a separate heavy-duty circuit through a plug and socket.

This allows the brakes to work automatically whenever the tow vehicle's brakes are applied. Properly adjusted controllers can allow tow vehicle and trailer combination to come to a stop as smoothly as if the tow vehicle was by itself.

Inertia activated brakes offers smooth stopping response in most situations.

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According to RV technician Reg DeYoung, the inertia brakes has an internal sensing device or a pendulum which senses the tow vehicles rate of deceleration. The sensing device then applies the amperage to the trailer brakes at the same rate of deceleration as the tow vehicle. The pendulum of the inertia brakes may not swing correctly because of changes in the angle or changes, and this can lead to jerky stops, according to Hensley Manufacturing.

Electric brakes tend heat up to a temperature of degrees Fahrenheit. This changes the resistance in the magnets in the brake system, which leads to brake fade. Trailer brakes are a crucial piece of equipment when the trailer has reached a specific weight threshold. Some states in the United States may have very little regulation of trailer brakes for units under 3, pounds, but it is best to check the local regulations where the trailer will be operated.

This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more about It Still Works, contact us. Inertia Vs. Electric Trailer Brakes by Edmund Gary. Inertia Trailer Brakes Inertia activated brakes offers smooth stopping response in most situations.

Drawbacks of Inertia and Electric Brakes The pendulum of the inertia brakes may not swing correctly because of changes in the angle or changes, and this can lead to jerky stops, according to Hensley Manufacturing. Conclusion Trailer brakes are a crucial piece of equipment when the trailer has reached a specific weight threshold. About the Author This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

Photo Credits camping,trailer image by Greg Pickens from Fotolia.Each company we work with has specific experience requirements for their drivers. In order for you to receive the best possible offers, please make sure your answers above are accurate prior to submitting.

Log in or Sign up. Find Trucking Jobs. Aug 22, 1. The truck hasmiles. I got mid sid 55 fmi 13 code or clutch solenoid valve out of calibration. It got stuck and wouldnt get into gear. I disconnected the batteries for 30 minutes,connected all back and the problem disappeared,code became inactive. Made it home miles with no issues except it was kind of bouncy taking off kind a like a clutch going bad would feel like.

Code remained inactive. I dont really know much about this tranny nor do my trusted mechanics. The dealer is gonna be the last place i will take it to since they probably know less then my 2 year old. At least my local dealer. Anyone out there with similar problems or has anyone replaced a clutch or a solenoid valve on a ultrashift transmission, how much does it cost and any good transmission shops you know of west of the Mississipi that will work on fully auto ultrashift.

Any help is appreciated. Thanks and be safe out there. Mlaz BogdanciAug 22, Name Email Phone Yes, let employers and TruckersReport text me with new opportunities, job alerts and other career information to the number I provided.

There is no charge for this service, but standard message and data rates may apply. Aug 22, 2. Mlaz Bogdanci Thanks this. Aug 22, 3. I wish it was a 3 pedal one would have converted it to a manual 10 speed.


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