Bus Application - News - Prestolite Electric Inc.

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AC172RA Bus & Coach Alternator Applications: Motorcoach Shuttle Bus Versions are available which are both mechanically and electrically interchangeable with the Bosch T1 Features: Originally developed to support the London Bus Fleets, for arduous traffi c conditions and heavy system demands Now improved to provide an increased performance throughout its operational range Brush life has been increased by up to 60% Extremely good low end performance Single, double and triple installations are possible Sealed for life high-specifi cation bearings Regulator provides load dump and surge protection Enhanced slip-ring and brush design Multiple bracket options Reversible rotation Facilities for piped air Swung Mount Pulley not supplied B+ TERMINAL M8 X 1.25 - 6g B- TERMINAL M8 X 1.25 - 6g 70 60.4 59.6 150.35 149.25 112.15 104.45 30.5 29.5 PULLEY NOT SUPPLIED, SHOWN AS AN EXAMPLE Ø 205 FAN Specifications: System voltage: 24/28 Frame: 128mm / 5.04” Max Operating Ambient: -40°C (-40°F) +100°C (212°F) 120.2 119.8 D+ TERMINAL M5 X 0.8 - 6g 15.5 W TERMINAL M6 X 1 - 6g 31 R8 AMPS VOLTS DIRECTION DESPATCH No. REMARKS NOM NOM OF ROTATION 1277640 140 24 REVERSIBLE D.E.SHIELD L.H. FITTING 12.38 12.20 16.7 16.3 180.3 179.7 M12X1.5 (2 OFF) 15.8 14.9 47.6 46.3 98.6 96.2 M24 X 1.5-6g Feature Codes: 1 28 Volt Regulator 2 28.5 Volt Regulator 3 M12x1.5 front mounting hole 4 12.2 front mounting hole 5 M12x1.5 rear mounting hole 6 12.2 rear mounting hole 7 Fixed bush 8 Sliding bush Part No Sales No Volts Amps Mount Type B+ B- Rotate Comments Feature Code 1277640 1277640S 24 140 1 M8x1.25 M8x1.25 Bi-Dir D.E.Shield L.H.Fitting 1277670 1277670S 24 140 1 M8x1.25 M8x1.25 Bi-Dir D.E.Shield L.H.Fitting 1277680 1277680S 24 140 1 M8x1.25 M8x1.25 Bi-Dir D.E.Shield L.H.Fitting 1277690 1277690S 24 140 2 M8x1.25 M8x1.25 Bi-Dir D.E.Shield R.H.Fitting 1277700 1277700S 24 140 2 M8x1.25 M8x1.25 Bi-Dir D.E.Shield L.H.Fitting 1277710 1277710S 24 140 1 M8x1.25 M8x1.25 Bi-Dir D.E.Shield L.H.Fitting 1277720 1277720S 24 140 2 M8x1.25 M8x1.25 Bi-Dir D.E.Shield R.H.Fitting 1, 3, 6, 7 1, 4, 6, 7 2, 4, 6, 8 1, 4, 6, 7 1, 4, 6, 8 2, 4, 6, 7 1, 3, 5, 8 7 © 2006 Prestolite Electric, Inc. www.prestolite.com
Guide For Nose Housing Rotation Convention Viewing the starter motor from the drive end, the solenoid switch is used as the zero degree position. The mounting hole on the fl ange opposite the pinion opening is then used as the pointer for the angular rotation of the nose. Rotatable Nose Application Details All MS Series Starter Motors X 15 37.5 22.5 27 45 67.5 52.5 57 75 97.5 82.5 87 105 127.5 112.5 117 135 157.5 142.5 147 165 187.5 172.5 177 195 217.5 202.5 207 225 247.5 232.5 237 255 277.5 262.5 267 285 307.5 292.5 297 315 337.5 322.5 327 345 367.5 352.5 357 The data table shown above can be used to re-clock the nose housing position from one type of starter to another type by 30° at a time. Different nose housings will produce a different set of angles achievable within the specifi c range. By matching the original starter part number to the angle on the table, you can determine what the alternative starter part number will be by referencing the application guide. www.prestolite.com 8
Page 1 and 2: 2006 Bus Application Alternators &
Page 3 and 4: How to use this buyer’s guide Alt
Page 5 and 6: History of School Bus Applications
Page 7 and 8: Recommended Alternators for School
Page 9 and 10: 4800-4900 HIGH OUTPUT / HIGH TEMPER
Page 11 and 12: 8LHA HEAVY DUTY ALTERNATOR SERIES A
Page 13: 2500-2800 HIGH OUTPUT FOR HEAVY DUT
Page 17 and 18: MS2 Type: Direct Drive Applications
Page 19 and 20: Glossary of Alternator Terms Irridi
Page 21 and 22: Model Recognition Guide When replac
Page 23 and 24: Alternator Model Supercedence Guide
Page 25 and 26: www.prestolite.com 18

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