TM 5-3895-373-20Table 2-1. Preventive Maintenance Checks and Services forModel 780T Bituminous Asphalt Paving Machine - ContinuedLocationItemIntervalProcedureNot Fully MissionNo.Item toCapable If:Check/Serviceb. Have a second person position ruler ontrack frame (21) with end of ruler againstback outer edge of track idler (22).Record measurement on rules from trackidler to track frame at track frame (19).c. Apply pressure on pry bar toward pavingmachine while second person allowsruler to move as track idler (22) moves.d. Release pressure on pry bar withoutallowing ruler to move. Recordmeasurement on ruler.e. Subtract measurement as recorded instep d from measurement obtained instep b. Measurement calculated is endplay of track idler bushings. Thismeasurement must be less than 3/4 in.(19 mm).2-22
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