1980/03/24 Caterpillar

Crankshaft Rear Seal And Wear Sleeve Are Now Serviced As A Group Instead Of Separate Parts{1161}


215, 225, And 235 Excavators;
235 Front Shovels;
12G, 14G, 120G, 130G, And 140G Motor Graders;
518 And 528 Skidders;
920, 930, 941, 950, 951B, 955L, 977K, And 977L Loaders;
D4E, D5B, D6D, 627B, And 627B PP Tractors;
561D Pipelayers;
3306 Natural Gas Engines;
3304, 3306, D333C, And D330C Industrial And Marine Engines;
1673C And 3306 Truck Engines

Description of Change: The crankshaft rear seal and wear sleeve, used in the above models, are now serviced as a group. As a group, the 9S3111 Seal comes installed on the 2P3858 Sleeve from the factory.

Lubricant is put on the seal during assembly. Also, the group is sealed in plastic for shipment. This will keep the contact surfaces clean and prevent damage to the seal during shipment.

Formerly, the crankshaft rear seal and wear sleeve were serviced as separate parts and had to be assembled at the time of installation. It was some times possible to damage the seal when it was installed on the wear sleeve. Also, it was possible for the separate parts to be damaged during shipment.

Adaptable As: The new 1N3216 Crankshaft Rear Seal Group is a direct replacement for the 9S3111 Seal and 2P3858 Sleeve. See Special Instruction Form No. SMHS7100 for installation procedure. DO NOT disassemble the group before installation. This will prevent possible damage to the seal.

Caterpillar Information System:

1980/03/24 Inspect Regulator Cover Assembly When Overcooling Is A Problem{1350,1380}
1980/03/03 Fuel Heaters Are Now Available For Field Installation{1296}
1980/03/03 Connecting Rod Changes And Replacement Information{1218}
1980/03/03 Spacer Plate Block Group Used For Parts Service Of Block Group With Counterbore Design{1101,1201}
1980/02/25 Identification Of Fuel Injection Lines And Nozzle Bodies For Different Combustion Systems{1252,1254}
1980/02/25 Drawings Available For Six Tools Used During Repairs Of Damaged Pin Bores In Two-Piece Booms{6501,0665}
1980/02/25 Plunger Movement Must Be Adjusted When New Rack Shut-Off Solenoid Is Installed{1259}
1980/02/25 Stronger Braces Used Between Air Cleaner And Engine{1051}
1980/02/25 Revision Of Special Instruction Form No. SMHS7267, "Use Of 5P8709 Tool Group For Alignment Of Piston Cooling Jets" Has Important Changes{1307}
1980/02/25 How To Check Operation Of Hydramechanical Shutoffs On D379B, D398B, D399 Engines{7418}
1980/02/11 Use The Correct Water Temperature Contactor{1350,1100}
1980/02/11 Warning: Avoid Use Of Fuel Mixtures Of High Volatility. If You Are Exposed To Such Mixtures, Be Aware Of The Hazards Involved And Take Proper Precautions{1280}
1980/03/24 New Top Piston Ring Has Plasma-Coated Face{1215}
1980/03/24 8S2252 Carbon Seal Tool Can Be Adapted For Use On 8N7001 Fuel Nozzle Assembly{0611,1254}
1980/03/24 Different Water Temperature Regulators Now Used To Prevent Overheating{1355}
1980/03/24 Visual Inspection Of Main And Connecting Rod Bearings{1203,1219,1230}
1980/03/24 New Fuel Injection Lines And Clamps Prevent Stresses And Contact Which Can Cause Leakage{1252}
1980/03/24 An Increase In Engine RPM Will Extend Vanes In Hydraulic Oil Pump To Start Pump Output{5055,5068}
1980/03/24 New Plugs And Rubber Stoppers For Machines With Sealed And Lubricated Track{4169,4170,4175,0622}
1980/03/24 New Control Valve Body{1155,1159}
1980/03/24 Different Vibration Damper Now Used{1205}
1980/03/31 Use The 6V200 Hydraulic Wrench To Get Correct Torque Applications On Fasteners In Difficult Access Areas{0612,0623}
1980/03/31 6V2023 Flow Check Adapter Group Is Available{0651,0654}
1980/03/31 Replacement Pinion And Output Gear Available For Service Of Torque Multiplier{0614}
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