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Federal Railroad Administration, DOT § 232.10

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Federal Railroad Administration, DOT § 232.10 Federal Railroad Administration, DOT § 232.10 penalty not to exceed $22,000 per viola- cars on such 2-foot-gauge railroads tion may be assessed. Each day a viola- measured in the same manner shall be tion continues shall constitute a sepa- 141¤2 inches. rate offense. § 232.3 Power brakes and appliances [54 FR 33230, Aug. 14, 1989, as amended at 63 for operating power-brake systems. FR 11623, Mar. 10, 1998] (a) The specifications and require- § 232.1 Power brakes; minimum per- ment for power brakes and appliances centage. for operating power-brake systems for On and after September 1, 1910, on all freight service set forth in the appen- railroads used in interstate commerce, dix to the report on further hearing, of whenever, as required by the Safety May 30, 1945, are hereby adopted and Appliance Act as amended March 2, prescribed. (See appendix to this part 1903, any train is operated with power for order in Docket 13528.) or train brakes, not less than 85 per- (b) [Reserved] cent of the cars of such train shall have their brakes used and operated by the RULES FOR INSPECTION, TESTING AND engineer of the locomotive drawing MAINTENANCE OF AIR BRAKE EQUIPMENT such train, and all power-brake cars in every such train which are associated § 232.10 General rules; locomotives. together with the 85 percent shall have (a) Air brake and hand brake equip- their brakes so used and operated. ment on locomotives including tender § 232.2 Drawbars; standard height. must be inspected and maintained in accordance with the requirements of Except on cars specified in the pro- the Locomotive Inspection and United viso in section 6 of the Safety Appli- States Safety Appliance Acts and re- ance Act of March 2, 1893 (sec. 6, 27 lated orders and regulations of the Fed- Stat. 532, 45 U.S.C. 6) as the same was eral Railroad Administrator (FRA). amended April 1, 1896 (29 Stat. 85; 45 (b) It must be known that air brake U.S.C. 6) the standard height of draw- equipment on locomotives is in a safe bars heretofore designated in compli- and suitable condition for service. ance with law is hereby modified and changed in the manner hereinafter pre- (c) Compressor or compressors must scribed, to wit: The maximum height of be tested for capacity by orifice test as drawbars for freight cars measured per- often as conditions require but not less pendicularly from the level of the tops frequently than required by law and or- of rails to the centers of drawbars for ders of the FRA. standard-gauge railroads in the United (d) Main reservoirs shall be subjected States subject to said act shall be 341¤2 to tests periodically as required by law inches, and the minimum height of and orders of the FRA. drawbars for freight cars on such (e) Air guages must be tested periodi- standard-gauge railroads measured in cally as required by law and orders of the same manner shall be 311¤2 inches, the FRA, and whenever any irregular- and on narrow-gauge railroads in the ity is reported. They shall be compared United States subject to said act the with an accurate deadweight tester, or maximum height of drawbars for test gauge. Gauges found inaccurate or freight cars measured from the level of defective must be repaired or replaced. the tops of rails to the centers of draw- (f)(1) All operating portions of air bars shall be 26 inches, and the mini- brake equipment together with dirt mum height of drawbars for freight collectors and filters must be cleaned, cars on such narrow-gauge railroads repaired and tested as often as condi- measured in the same manner shall be tions require to maintain them in a 23 inches, and on 2-foot-gauge railroads safe and suitable condition for service, in the United States subject to said act and not less frequently than required the maximum height of drawbars for by law and orders of the FRA. freight cars measured from the level of (2) On locomotives so equipped, hand the tops of rails to the centers of draw- brakes, parts, and connections must be bars shall be 171¤2 inches, and the mini- inspected, and necessary repairs made mum height of drawbars for freight as often as the service requires, with 375 VerDate 23<NOV>98 13:41 Dec 03, 1998 Jkt 179205 PO 00000 Frm 00369 Fmt 8010 Sfmt 8010 Y:\SGML\179202T.XXX pfrm08 PsN: 179202T § 232.10 49 CFR Ch. II (10±1±98 Edition) date being suitably stencilled or has been made from brake pipe air tagged. pressure of not less than 70 pounds. (g) The date of testing or cleaning of (3) Brake cylinder leakage: With a air brake equipment and the initials of full service application of brakes, and the shop or station at which the work with communication to the brake cyl- was done shall be placed on a card dis- inders closed, brakes must remain ap- played under transparent covering in plied not less than five minutes. the cab of each locomotive unit. (4) The main reservoir system of each (h)(1) Minimum brake cylinder piston unit shall be equipped with at least one travel must be sufficient to provide safety valve, the capacity of which proper brake shoe clearance when shall be sufficient to prevent an accu- brakes are released. mulation of pressure of more than 10 (2) Maximum brake cylinder piston pounds per square inch above the maxi- travel when locomotive is standing mum setting of the compressor gov- must not exceed the following: ernor fixed by the chief mechanical of- ficer of the carrier operating the loco- Inches motive. Steam locomotives: (5) A suitable governor shall be pro- Cam type of driving wheel brake ................. 31¤2 vided that will stop and start the air Other types of driving wheel brakes ............ 6 compressor within 5 pounds above or Engine truck brake ....................................... 8 below the pressures fixed. Engine trailer truck brake ............................. 8 Tender brake (truck mounted and tender (6) Compressor governor when used in bed mounted) ............................................ 8 connection with the automatic air Tender brake (body mounted) ...................... 9 brake system shall be so adjusted that Locomotives other than steam: Driving wheel brake ...................................... 6 the compressor will start when the Swivel type truck brake with brakes on main reservoir pressure is not less than more than one truck operated by one 15 pounds above the maximum brake- brake cylinder ............................................ 7 pipe pressure fixed by the rules of the Swivel type truck brake equipped with one brake cylinder ............................................ 8 carrier and will not stop the compres- Swivel type truck brake equipped with two sor until the reservoir pressure has in- or more brake cylinders ............................ 6 creased not less than 10 pounds. (k) The communicating signal sys- (i)(1) Foundation brake rigging, and tem on locomotives when used in pas- safety supports, where used, must be senger service must be tested and maintained in a safe and suitable con- known to be in a safe and suitable con- dition for service. Levers, rods, brake dition for service before each trip. beams, hangars and pins must be of (l) Enginemen when taking charge of ample strength and must not bind or locomotives must know that the foul in any way that will affect proper brakes are in operative condition. operation of brakes. All pins must be (m) In freezing weather drain cocks properly applied and secured in place on air compressors of steam loco- with suitable locking devices. Brake motives must be left open while com- shoes must be properly applied and pressors are shut off. kept approximately in line with treads (n) Air pressure regulating devices of wheels or other braking surfaces. must be adjusted for the following (2) No part of the foundation brake pressures: rigging and safety supports shall be closer to the rails than specified by law Locomotives Pounds and orders of the FRA. (1) Minimum brake pipe air pressure: (j)(1) Main reservoir leakage: Leak- Road Service ................................................ 70 age from main air reservoir and related Switch Service .............................................. 60 piping shall not exceed an average of 3 (2) Minimum differential between brake pipe and pounds per minute in a test of three main reservoir air pressures, with brake valve in running position ............................................ 15 minutes' duration, made after the pres- (3) Safety valve for straight air brake .................. 30±55 sure has been reduced 40 percent below (4) Safety valve for LT, ET, No. 8±EL, No. 14 El, maximum pressure. No. 6±DS, No. 6±BL and No. 6±SL equipment 30±68 (2) Brake pipe leakage: Brake pipe (5) Safety valve for HSC and No. 24±RL equip- ment ................................................................. 30±75 leakage must not exceed 5 pounds per (6) Reducing valve for independent or straight minute after a reduction of 10 pounds air brake ........................................................... 30±50 376 VerDate 23<NOV>98 13:41 Dec 03, 1998 Jkt 179205 PO 00000 Frm 00370 Fmt 8010 Sfmt 8010 Y:\SGML\179202T.XXX pfrm08 PsN: 179202T Federal Railroad Administration, DOT § 232.12 Locomotives Pounds (A) Removing a solid block of cars from the head end or rear end of the (7) Self-lapping portion for electro-pneumatic brake (minimum full application pressure) ....... 50 train; (8) Self-lapping portion for independent air brake (B) Changing motive power; (full application pressure) ................................. 30±50 (C) Removing or changing the ca- (9) Reducing valve for air signal ......................... 40±60 (10) Reducing valve for high-speed brake (mini- boose; or mum) ................................................................ 50 (D) Any combination of the changes listed in (A), (B), and (C) of this sub- Cars Pounds paragraph.
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