1979/08/20 Caterpillar


Turbocharger Bearings Are Now Available In More Different Sizes For Better Turbocharger Reconditioning{1053}

Usage:


AiResearch and Schwitzer Turbochargers Shown In The Chart

SUPPLEMENT: 11/23/87

SERVICE MAGAZINE; AUGUST 20, 1979; PAGE 7; "Turbocharger Bearings Are Now Available In More Different Sizes For Better Turbocharger Reconditioning" on Schwitzer turbochargers. Refer to the second chart on Page 7. Add two lines to the portion of the chart for Schwitzer turbochargers. These two additional bearing sizes are for "Inside Diameter", "Outside Diameter", and "Identification Code".

--------------- END SUPPLEMENT ---------------

Description of Change: Turbocharger bearings are now available in a larger number of different sizes to permit better selection for turbocharger reconditioning. Formerly, only two optional size bearings were available in addition to standard size bearings: One with .005" (0.13 mm) undersize I.D. (Inside Diameter) and .005" (0.13 mm) oversize O.D. (Outside Diameter), and the other with .010" (0.25 mm) undersize I.D. and .010" (0.25 mm) oversize O.D. The new bearings will permit better accuracy in the selection of bearing size to use during turbocharger repair or reconditioning. For turbocharger cartridges remanufactured at the factory, a limited number of bearing sizes will be used. See the topic "Remanufactured Cartridges".

Adaptable To: The new bearings are adaptable to AiResearch and Schwitzer turbocharger models as shown in the charts.

REMANUFACTURED CARTRIDGES: Turbocharger cartridges which are remanufactured at the factory, will not use all of the new bearing sizes. The bearings used in these cartridges will be limited to the sizes shown in the chart. Identification of the remanufactured cartridges will still be made by the use of a red identification plate. This plate has stamp marks to show the size of bearings used, as shown in the chart under "Identification Code". The code number for Schwitzer turbocharger cartridges is shown on the plate at the end of the serial number, after the letter "R" (for Remanufactured). For example, the serial number C076C202R8 shows a remanufactured cartridge, code 8. As shown in the chart, this is an indication that the cartridge is remanufactured with bearings that have a standard inside diameter and a .020" (0.51 mm) oversize outside diameter.

Caterpillar Information System:

1979/08/20 Flex Plate Kits Are Now Available For Vickers Vane-Type Hydraulic Pumps{5055}
1979/08/13 Sealant Now Used On Pipe Plugs At The Bottom Of The Oil Filter Base Assembly To Prevent Oil Leakage{1306}
1979/08/13 New Cylinder Head Gasket Has Smaller Diameter Cylinder Openings To Improve Location Of Combustion Seal Ring{1101,1201}
1979/08/13 New 35-Ampere Alternator Used On Some Engines In Caterpillar Equipment{1405,1406}
1979/08/13 6V14 Hydraulic Cylinder Group Now Available{0621}
1979/08/13 5P936 Liner Seat Insert Available For 6.25 Bore Engine Blocks With Counterbores{1217}
1979/08/13 New Seal Used Under Retaining Bushing For Fuel Injection Pump Bonnet{1251,1253,1286}
1979/08/13 Splash Shields Added To Caterpillar Fuel Injection Test Bench{0652}
1979/08/06 Changes Made To 8S2243 And 8S4613 Wrenches Used On Fuel Injection Pumps{0612,1251}
1979/08/06 Front Accessory Drive Group Changed; New Drive Parts For Fuel Transfer Pump{1256,1206}
1979/08/06 When Timing The Engine, Be Sure The Timing Bolt Is Installed In The Correct Hole In The Flywheel{1156,1251,1281}
1979/08/06 Use Correct Installation Procedure For Clutch Pilot Bearing In Rear Power Takeoff{3055}
1979/08/20 New Rear Cover And Gasket Used On Water Pump{1361,1350}
1979/08/27 Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27 New Governor Housing Assembly Used In Governor And Fuel Injection Pump Group{1253,1264}
1979/08/27 Exhaust Manifold And Air Lines Groups Changed To Prevent Exhaust Leakage{1059,1061}
1979/08/27 Service Kit Is Available For Woodward UG8 Governor{1289}
1979/08/27 6V190 Clamp Is Available For Use On Sleeve Metering Fuel Systems{0626,1250}
1979/08/27 Engine Oil Viscosity Changed To SAE 10W/30 For Shipment From All U. S. Factories{1318}
1979/08/27 New Rocker Arms And Rocker Arm Shaft Have Improved Lubrication{1102}
1979/08/27 New Design Thrust Plate Used In Crankshaft Group{1201,1202,1203}
1979/09/03 Only One Dowel Pin Is Now Used To Hold The Thrust Bearing In The Correct Position{1053,1052}
1979/09/03 Follow Recommendations Given In Special Instructions For Modification Of Rollover Protective Structures (ROPS) At All Times{7323,7325}
1979/09/03 Quick Disconnect Coupling On Optional Modification Of 5P4150 Nozzle Tester Permits Faster Exchange Of Adapters{0651,1254}
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