attachment 2 section i ? technical specifications commuter coach ...

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The engine being provided complies with the Clean Air Act when operated on diesel fuel. Page 42 ATTACHMENT 2 The horsepower of the vehicle is adequate for the speed, range and terrain in which it will be required to operate, and also to meet the demands of all auxiliary power equipment. 3.1.4.3 EXHAUST LOCATION Exhaust gases and waste heat from the radiator shall not be discharged on the curbside and shall be directed generally left of centerline of the coach. Exhaust piping shall not restrict the underbody clearances. Exhaust shall not be through the body of the coach, as through a stack, but should be directed toward the street surface. A stainless steel muffler shall be provided on each coach. 3.2. FINAL DRIVE 3.2.1 GENERAL REQUIREMENTS The two rear axles shall have a load rating sufficient for the coach loaded to GVWR. Transfer of gear noise to the coach interior shall be minimized. 3.2.1.1 DRIVE AXLE The drive axle shall be a Meritor World Axle or approved equal rated at 23,000 lbs. The bearing journals on each spindle shall be induction hardened for greater durability. Ring gear shall be bolted to case. The drive axle wheel bearings shall be oil lubricated. Rear axle ratio shall be 4.30:1. 3.2.1.2 TRAILING AXLE A trailing axle shall be provided behind the drive wheels and shall be a separate and independently sprung, swing arm type. The 45 foot coaches shall have a coach body rear rise feature which through a dash mounted switch, permit the redirection of suspension system air pressure which will raise the rear of the coach for maneuverability purposes. The third axle shall have single tires with tires being the same size as the tires on the other axles. Tag axle weight shall not exceed 12,000 pounds on 45-foot buses. In no event, with a full seated passenger load shall the load on any axle exceed 22,400 pounds. Combined weight on the rear tandem axles shall not exceed 34,400 pounds. Brake shoes and drums are not required to be the same for the tag and front axle. Wheel bearings shall be tapered roller type and oil lubricated. 3.2.1.3 DRIVE SHAFT The drive shaft shall be a minimum 3 inches outside diameter, heavy-duty type Meritor 1810 series. The drive shaft shall be guarded to prevent it from striking the floor of the coach or the ground in the event of a tube or universal joint failure. U-joint end cap retaining bolts shall be retained by metal locking plates. Both half-round yoke ends shall be attached using self-locking bolts.
3.3 SUSPENSION 3.3.1 GENERAL REQUIREMENTS Page 43 ATTACHMENT 2 The front and rear axle suspension shall be pneumatic and equipped with straight side lobe air suspension bellows. Four suspension bellows shall be provided on the rear axles and two suspension bellows on the front axle. Each trailing axle swing arm shall be equipped with a straight side lobe type air spring, 9.5”for the 45’. Pressure in the trailing axle suspension shall be automatically adjusted as required by the load-sharing system. Manual air dump valves shall also be provided in the engine compartment. The basic suspension system exclusive of bellows, height control valves, bushings and shock absorbers, shall last the life of the coach without major overhaul or replacement. Four (4) heavy-duty rubber bushed silent block sleeve type radius rods shall be provided at both the front and rear drive axles to control lateral, longitudinal, and torsional movement. Radius rod bushings shall be Clevite part # 836520l. One transverse stabilizing rod shall be provided on front axle for additional support during coach lane changing or turning of corners. The rear suspension system shall be equipped with a sway bar designed to reduce body lean and increase bushing life. Castle nuts shall be installed on sway bars. Items such as bushings and air springs shall be easily and quickly replaceable. Adjustment points shall be minimized and shall not be subject to a loss of adjustment in service. Necessary adjustments shall be easily accomplished without removing or disconnecting the components. 3.3.2 SPRINGS AND SHOCK ABSORBERS 3.3.3 TRAVEL The suspension system shall permit a minimum wheel travel of 3.5 inches in jounce and 3 inches in rebound. Elastomeric bumpers shall be provided at the limit of jounce travel. Rebound travel may be limited by elastomeric bumpers or hydraulically within the shock absorbers. 3.3.4 KNEELING A driver-actuated kneeling device shall lower the coach floor 3" to 6" during loading or unloading operations regardless of load to a floor height of 42 inches measured at the longitudinal centerline of the front door. The park brake shall prevent movement when the coach is kneeled. The coach shall kneel and rise at a maximum rate of 1.5 inches per second at essentially a constant rate. After kneeling, the coach shall rise within 2 seconds to a height permitting the coach to resume service and shall rise to the correct operating height within 9 seconds. During the lowering and rising operation, the maximum acceleration shall not exceed 0.2g and the jerk shall not exceed 0.3g/second measured on the front door step tread. A flashing indicator visible to the driver shall be illuminated until the coach is raised to a height adequate for safe street travel. An audible warning device that operates with the kneeling system shall be provided. A visual indicator meeting ADA requirements shall be provided on the curbside of the coach, visible to the boarding passenger who activates during the kneeling operation. This indicator shall be appropriately marked.
Page 1 and 2: 1.1 SCOPE SECTION I - TECHNICAL SPE
Page 3 and 4: (10) FMVSS: Federal Motor Vehicle S
Page 5 and 6: 1.5.4.4 ACCESSIBILITY Page 5 ATTACH
Page 7 and 8: Page 7 ATTACHMENT 2 Monograms, numb
Page 9 and 10: Page 9 ATTACHMENT 2 Reinforced fibe
Page 11 and 12: Page 11 ATTACHMENT 2 system air flo
Page 13 and 14: Page 13 ATTACHMENT 2 clearly percei
Page 15 and 16: 2.8.7.2 EDGES Page 15 ATTACHMENT 2
Page 17 and 18: Page 17 ATTACHMENT 2 bumper when fu
Page 19 and 20: Page 19 ATTACHMENT 2 The windshield
Page 21 and 22: Page 21 ATTACHMENT 2 The middle rea
Page 23 and 24: 2.9.3.7 VISUAL AND AUDIBLE WARNING
Page 25 and 26: 2.10 INTERIOR TRIM 2.10.1 GENERAL R
Page 27 and 28: Page 27 ATTACHMENT 2 The flammabili
Page 29 and 30: Page 29 ATTACHMENT 2 ¼”laminated
Page 31 and 32: Page 31 ATTACHMENT 2 other equipmen
Page 33 and 34: Page 33 ATTACHMENT 2 number box wou
Page 35 and 36: Page 35 ATTACHMENT 2 Voltage.......
Page 37 and 38: Page 37 ATTACHMENT 2 Two roof venti
Page 39 and 40: Page 39 ATTACHMENT 2 power steering
Page 41: Page 41 ATTACHMENT 2 transmission f
Page 45 and 46: Page 45 ATTACHMENT 2 The steering w
Page 47 and 48: Page 47 ATTACHMENT 2 shall be provi
Page 49 and 50: Page 49 ATTACHMENT 2 The wheel nuts
Page 51 and 52: Page 51 ATTACHMENT 2 tell tale. The
Page 53 and 54: Page 53 ATTACHMENT 2 mounted in a l
Page 55 and 56: Page 55 ATTACHMENT 2 An internal ve
Page 57 and 58: Page 57 ATTACHMENT 2 An AM/FM/CD ra
Page 59 and 60: 1. Surveillance System SECTION II O
Page 61 and 62: FEDERAL CONDITIONS OF MANUFACTURE/V
Page 63 and 64: Page 63 ATTACHMENT 2 claim, stateme
Page 65 and 66: Page 65 ATTACHMENT 2 The Recipient
Page 67 and 68: Page 67 ATTACHMENT 2 three years th
Page 69 and 70: P. Disadvantage Business Enterprise
Page 71 and 72: (c) Socially and economically disad
Page 73 and 74: V. Clean Air Requirements The Succe
Page 75 and 76: Page 75 ATTACHMENT 2 Y. State And L
Page 77 and 78: ATTACHMENT A-1 1.2.23 CERTIFICATION
Page 79 and 80: 1.1.23 CERTIFICATION OF LOWER-TIER
Page 81 and 82: Page 81 ATTACHMENT 2 This certifica
Page 83 and 84: 1.2.21 TRANSIT VEHICLE MANUFACTURE
Page 85: ATTACHEMENT 5 Affidavit of Non-Coll

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