This webinar was held on Tuesday, November 14, 2017




Disc brakes have been used on transit buses for over fifteen years but misconceptions remain regarding their operation and maintenance. Disc brake technology brings immediate cost savings for transit/coach operators thanks to reduced weight, compact design and easier servicing compared with drum brake systems. Disc brakes can be found in different configurations; disc in combination with drum brakes, or disc brakes on all axles. Disc brakes are a good fit with hybrid and electric vehicle technology.
There are two basic forms of disc brake periodic maintenance inspections. The Wheels On inspection is a basic periodic check that was covered in a previous webinar. Today’s webinar will cover a more in-depth inspection of the disc brake system and is performed with the wheels off.
The following areas will be covered in today’s webinar:
•Caliper Identification
•Caliper Inspection and Tests
•Brake Pad Inspection
•Wear Indicators
•Rotor Inspection
•Brake Chamber Inspection
•Brake Pad Installation
•Testing and Validation
It is necessary to check some of the components regularly for their general condition. The inspection process, when followed, will ensure a long-life and trouble-free operation of the disc brake system. Periodic inspection intervals will vary based on environmental and operating conditions


Marie Benton, Interim Assistant Vice President – Rail Maintenance
Dallas Area Rapid Transit (DART), Dallas, TX
Marie Benton has been in the transit industry for over 11 years, and currently serves as the Interim Assistant Vice President of Rail Maintenance at Dallas Area Rapid Transit (DART). In this role she is responsible for the maintenance of 163 light rail vehicles, and 4 streetcars, as well as DARTs rail operating facilities. Prior to that, she served as the Senior Manager of Fleet Services Support at DART, where she was responsible for fleet and facilities related contracts which support Maintenance Operations, such as natural gas management, fueling and compression station maintenance, vehicle cleaning, janitorial and other support functions of the department. Marie was in the inaugural Multi-Agency Exchange (MAX) group, in collaboration with sister agencies in Denver and Los Angeles, and is a graduate of the of the Leadership APTA program class of 2014.​


Brian D. Markey, President, Custom Training Aids Inc, La Verne, CA​
Brian Markey retired from the Los Angeles County Metropolitan Transportation Authority after 38 years as Mechanical Instructor specializing in transit bus brakes and mechanic apprentice training and class development. 17 years President / CEO of Custom Training Aids Inc.​ where he designs and built mechanical training equipment for classroom instruction​ in government agencies, transit bus properties, trade schools, and private companies. Brian also instructs at Los Angeles Trade Technical College and instructs and develops curriculum for the Southern California Regional Transportation Training Collation. He also serves as an ASE transit bus H Series test writer. Brian serves on both APTA Brake Force and Training Development Committees. He sponsors the APTA Bus Roadeo Air Brake Competition and is a DOT Certified accident and fire investigator.​


John Brundage, Transit and Rail Vehicle Technician, CH2M, Boston, MA
John Brundage recently retired from the MBTA and joined CM2H as a Transit and Rail Vehicle Technician. John has thirty years of bus maintenance experience with the last twenty-four at the Massachusetts Bay Transportation Authority in Boston Massachusetts. With prior bus mechanic experience, John was hired by the MBTA as an assistant foreperson. Through the years he became a garage foreperson scheduling and overseeing maintenance on different bus fleets at various MBTA facilities. John’s last eight years with the MBTA were at the authority’s Everett shops working as an acting project manager and scheduling back shop support for the MBTA’s bus facilities including component rebuilding, power train overhaul and replacement, and accident repair. As an acting project manager he oversaw the in-house overhaul of the Nabi bus fleet and the selective service replacement program for the New Flyer SR1105 fleet and numerous smaller projects. He was also part of a Materials QA team investigating and resolving various materials issues. John was also a member of the TCRP E-10 panel which was tasked with, and successfully developed a bus maintenance staffing calculator. Since 2013 John has been a contributing member of APTA’s Brake and Chassis Working Group.
Frank Forde, Equipment Maintenance Instructor, Los Angeles Metropolitan Transportation Authority,
Los Angeles,​ ​​​​CA​​
Frank Forde is a bus equipment maintenance instructor at the Los Angeles Metropolitan Transportation Authority. He started at LACMTA as a Mechanic C in 2001 moving up the ranks to master mechanic leader in 2009.He was a member of LA Metro’s champion team winning 1st place at LA Metro 2003, 2005 thru 2009 and the Regional Roadeo in 2005 thru 2009.The team also won 1st place maintenance team and grand champion at the APTA international Roadeo 2007.Prior to LA Metro Frank worked at JMC truck repair and United States Navy from 1993-1999 First introduced to air disc brakes in the early 1990s with the Rockwell and the D-lisa air disc brakes, then again in 2004 when LA Metro received the NABI 45 foot composite bus and the NABI 60ft articulated bus in 2005 with the Meritor air disc brake model EX225. In 2014, on the New Flyer Xcelisor bus with the Knorr SN7 air disc brake system. Frank is a member of the APTA brake and chassis committee. He has earned a Certificate for automotive, Certificate for Diesel and is a certified smog technician. He is a 1989 graduate of University College Cork City, Ireland; and completed Bendix air brake training in 1999, Bendix anti-locking brake system in 2000, and between 2000 and 2003 completed Los Angeles Trade Technical College.​

Jerry Guaracino, Assistant Chief Engineering Officer – Bus Engineering, Southeastern Pennsylvania Transportation Authority (SEPTA), Philadelphia, PA
Jerry Guaracino is the Assistant Chief Engineering Officer at the Southeastern Pennsylvania Transportation Authority (SEPTA). He has 16 years of transit experience. Jerry supervises the daily engineering activities of an engineering staff responsible for new vehicle specifications, project planning, introducing emerging vehicle technology, bid evaluation, budgeting, and procurement of new fleet vehicles. He provides direction and technical support for Vehicle Maintenance Overhaul Program. He analyzes performance reports that provide vehicle data to recommend improvements to fleet vehicles and maintenance programs. Jerry oversees quality safety inspections of vehicles and collect performance data in support of strategic initiatives to improve vehicle safety, sustainability and reliability. Prior to joining SEPT​​A he worked in the aviation industry. Jerry earned a B.S. degree in Mechanical Engineering from Temple University.
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