Cover Image

Not for Sale

View/Hide Left Panel
Click for next page ( 17

The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement

Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.

OCR for page 16
16 sections of the template. (Depending on copyright asked agencies to provide examples of any special steps restrictions, you may also be able to copy and paste taken to maintain and repair buses as a result of unique envi- material from an electronic source.) ronmental and operating conditions. Those not using the Word template will have to Another step was to research published information that enter the material manually into the Chapter 4 addresses special maintenance procedures to account for practice format (or any format you eventually unique local conditions. Two publications were found, decide upon). and both address maintenance practices pertaining to cold Supplement the reference material with appropriate weather operation. The first source, "TMC RP 311--Cold material developed from your agency's collective Weather Operation," discusses the proper maintenance experiences. methods for preparing a heavy-duty truck for cold weather 5. Improve the material taken from the various sources operation (+40 to -40F). This RP is included in the collec- by applying the Guidebook instructions for writing tion of TMC RPs entitled "Recommended Maintenance effectively and inserting photographs/illustrations Practices for Transit Buses," which is available from APTA found in Chapter 3. When using text from more than as indicated in Part 2 above. The second source includes one source, it is especially important to revise the syn- operations and maintenance manuals prepared by engine thesized text into a consistent writing style to make it OEMs for cold weather operation. Major engine OEMs all easier to read. have manuals that address cold weather operation. Contact 6. Review Part 1 above and Appendix A, and consult with information for most of these OEMs can be found in the Bus an attorney if available to make certain that you have and Component OEM section in Part 2 above using APTA's used all reference materials obtained from outside COMPS service. sources in a legal manner. Two primary conclusions were identified from this research. First, most transit systems are so focused on how they perform their own maintenance work that they do not PART 4: TAILORING PRACTICES view any of their procedures as being "unique." For exam- TO LOCAL CONDITIONS ple, if they only have pits in their shop, they have adapted Background all their maintenance procedures around this shop condi- tion. The second conclusion is that weather-related condi- An element of this research is to provide information on tions (e.g., road salt and leaves) are virtually the only con- tailoring maintenance practices to local conditions. An initial ditions for which special maintenance practices have been survey was conducted, and 62 systems responded. Agencies developed. Except for basing PMI intervals on duty cycle were asked how they felt regarding the need to tailor main- at MTA New York City Transit (MTA NYCT), no signifi- tenance practices as a result of certain local conditions. cant agency practice was found that addresses a unique Responses are summarized in Table 2-1. shop condition, fleet size, or workforce characteristic. The most important local condition noted by agencies While these special practices exist, agencies do not view responding was severe weather. Included in this category them as unique. were severe heat, cold, dust, and road salt. Transit agencies The format used in Chapter 4 to develop maintenance and equipment OEMs were contacted for their insights into practices includes a section where agencies can enter a special steps taken to address unique local conditions. A summary of special steps taken as a result of a condition posting on TRB and APTA Internet-based Web Boards unique to their operation. Summarizing these special steps will alert your agency's maintenance personnel, some of whom may come from different climate and shop condi- TABLE 2-1 Conditions requiring special consideration tions, of the importance of following certain procedures Percentage of Agencies that Felt that they may not understand as being necessary. The local Condition the Condition Required Special condition summaries will also be helpful to other agencies Consideration considering your practice as a reference to give them Severe Weather 66 insight to determine if all sections are applicable to their particular operation. Fleet Makeup 52 Geographic Area 44 Workforce Considerations 40 Weather-Related Conditions Fleet Size 35 Number of Locations 32 Two sections below address weather-related conditions. The first includes ways to obtain weather information; the Contracted Maintenance 32 second includes specific maintenance procedures suggested Workshop Layout 18 by agencies to address weather conditions.