1988/11/21 Caterpillar


New Oil Seal For Water Pumps Has Hydrodynamic Grooves{1361,1389}

Usage:


3500 Family Of Engines

Reference: Special Instruction, SEHS9015, "Oil Seal Replacement for Jacket Water Pumps."

Description of Change: A new oil seal is used in water pumps on the 3500 Family Of Engines. The new seal has hydrodynamic grooves instead of the former lip-type seal. The new seal will help eliminate wear on the water pump shaft.

Adaptable To: The new 8C5236 Seal is a direct replacement for the former 2P6286 Seal. Care must be taken during the assembly of the new seal to prevent seal damage. See the Special Instruction for the correct assembly procedure.

Caterpillar Information System:

1988/11/21 Rechargeable Portable Printer Available{0782,1050,1250}
1988/11/21 Improved Pressure Gauge Sender Used{7450,7485}
1988/11/21 Be Sure To Follow Cooling System Recommendations{1350}
1988/11/21 Fabric Seat And Back Cushions Available For Parts Service{7307,7312}
1988/11/14 New Liner Seat Insert Available{1201,1216,1217}
1988/11/07 9Y1784 Pyrometer Wiring Changed To Protect Internal Parts Of Pyrometer{1059,7456}
1988/11/07 Digital Dial Indicator Simplifies Fuel Injection Timing Adjustment{0782,0760,1257,1290}
1988/11/07 Identification Of Jacket Water Heater Elements{1383}
1988/11/07 Identification Of Surge Suppressors{4454,4466}
1988/11/07 New Oil Pressure Sender Assembly Used{7455}
1988/10/31 New Air Cleaner Group Has Improved Crankcase Fumes Disposal{1051,1054,1317}
1988/10/31 New Fuel Shutoff Solenoid Assembly Used{1259}
1988/11/21 One-Piece Tappet (Follower) Used In 11 mm (Type 2) Fuel Injectors{1290}
1988/11/21 Fuel Priming Pump Available As An Attachment{1258}
1988/11/21 Excitation Portion Of Generators Changed To Give Longer Shaft Life{4454,4470}
1988/11/28 More Charts And Decals Available For Lubrication And Maintenance Intervals {0374,0375,7500}
1988/11/28 Potentiometer Can Be Used In Place Of Temperature Probe For Demonstration Of Electronic Modular Control Panel {0315,7418}
1988/11/28 Bleed Holes Now In Paddle In Air Inlet Shutoff Groups {1078}
1988/12/05 Improved Air Conditioner Thermostat Switches Have Tin-Plated Internal Parts{7320}
1988/12/12 Revised Instructions For Installation of New Maintenance Free Batteries{1401,1400}
1988/12/12 New Mounting Bolts Used In Aftercooler Housings{1063,1058}
1988/12/12 Maintenance Procedure Extends Service Life Of Exhaust Manifold Studs{1050}
1988/12/12 New Alternator Drive Pulley Has Hardened Wear Sleeve; New Seal Used On Pulley{1425,1357}
1988/12/12 Oil Cooler Bypass Elbow Changed To Prevent Bypass Valve Seizure{1314,1318}
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