Study Group Information Reports

S.3 Engine Study Group Information Report 2015-1: Evaluation, Specification, Deployment and Maintenance Considerations for Natural Gas Powered Heavy-Duty Commercial Vehicles

Natural gas fuels can be a suitable alternative to diesel fuel for commercial vehicles in certain environments and applications. However, it is best to understand all facets of the operation, discuss them both internally and with local vendors (where applicable), and to establish re- alistic return-on-investment targets up front. Taking the time to build a proper business case and understand all the variables that come into play will pay dividends in terms of ensuringa successful natural gas vehicles deployment that meets corporate financial, reliability andacceptance expectations.

AFTERMARKET BRAKE LINING CLASSIFICATION

The purpose of this Recommended Practice (RP) is to provide information for judging the performance of aftermarket brake linings on air-actuated foundation brakes, including testing in accordance with the dynamometer test procedure in Federal Motor Vehicle Safety Standard (FMVSS) 121 and lining supplierqualification information. Such information will assist fleet operators in choosing aftermarket brake liningsthat will perform adequately on typical combination (tractor/trailer) vehicles and single trucks.

Issued: June 2014

S.4 Cab & Controls Study Group Information Report 2013-1: Mirror Obscuration During Inclement Weather

Equipment users have reported to TMC experiences of mirror obscuration during inclementweather. Testing has confirmed cab and mirror design contributes to the concentrated flow of air that can contain water borne dirt. Large windshield wipers sweep significant fluid off the windshield and into the air flow path of the mirror heads, resulting in dirt deposits on the mirror surface. TMC has determined that a generic field fix cannot be developed since the causal factors are different for each manufacturer’s vehicle design.

S.5 Fleet Maintenance Management Study Group Information Report 2012-1: Addressing the Risk Posed by Counterfeit Parts in Fleet Maintenance Operations

As with many sectors of the U.S. economy, counterfeit parts have found their way into thetrucking industry. While the exact cost to the trucking industry is difficult to determine, it is estimated that counterfeiting represents a $12 billion per year problem for the entire automotive industry. Beyond just the monetary costs are the added safety concerns of these counterfeitproducts. For example, a single counterfeit brake valve can significantly decrease the overallperformance of a truck’s brake system.

Brake Aftermarket Lining Material Report

The Performance Review Institute (PRI) has released an updated list of products reviewed by its Brake Lining Review Committee.The committee verifies the brakelinings have met test criteria established in TMC RP 628B and agrees with the specification data submitted by the manufacturer.

Issued: July 2011

Report

Service Provider Committee Information Report: 2011-1: Understanding Heavy-Duty Vehicle Standard Repair Time (SRT) Guides

This TMC Information Report provides equipment managers insight into how “Standard Repair Time” (SRT) guides are developed and used in support of equipment maintenance and repair. Equipment managers should recognize that SRT guides used by service providers vary for avariety reasons, such as corporate policy and affiliation, and access to specific SRT guides.

Issued: June 2011

Report

Professional Technician Development Committee Information Report: 2010-1: The Matriculation Process: A Proven Pathway for New Technician Success in the Workplace

Most fleets use a thoughtful approach in the hiring of technicians. However, many of these same companies take a minimalist approach to matriculation. This can lead to poor performance, unacceptable conduct issues and poor employee retention. The purpose of this document is to help fleet managers ensure that all newly hired graduates of technical trade schools make a successful transition to the next level of their career objectives.

AFTERMARKET BRAKE LINING CLASSIFICATION

The purpose of this Recommended Practice (RP) is to provide information for judging the performance of aftermarket brake linings on air-actuated foundation brakes, including testing in accordance with the dynamometer test procedure in Federal Motor Vehicle Safety Standard (FMVSS) 121 and lining supplierqualification information. Such information will assist fleet operators in choosing aftermarket brake liningsthat will perform adequately on typical combination (tractor/trailer) vehicles and single trucks.

Issued: June 2009

S.4 Cab & Controls Information Report 2009-1: Assessing Distraction Risks of Driver Interfaces

Technological advancements in truck technology have increased driver distraction. This information report offers a process by which fleets may assess the potential for driver distractionassociated with the acquisition of new technologies.

Issued: May 2009

Report

Professional Technician Development Committee Information Report 2007-3: Training and Certification Requirements for Servicing Motor Vehicle Air Conditioning Systems – Section 609 of the Clean Air Act of 1990

Section 609 of the Clean Air Act of 1990 (as amended) requires that motor vehicle air conditioning refrigerant be recycled, that only recover/recycle or recover-only equipment approved for a specific refrigerant be used in the repairing or servicing of motor vehicle air conditioners, and that technicians who repair or service motor vehicle air conditioners be trained and certified by an EPA-approved organization. In addition, service shops must be able to certify that they comply with these provisions of the Act.

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