1984/11/26 Caterpillar

Rear Power Take-Off Clutch Can Use Nonmetallic Plates And Grease Lubrication For Main Bearings{3055,3305}

Usage:

3208 Industrial Engines

Reference: Service Magazine, February 14, 1983, Page 4, "New Clutches For Rear Power Take-Off".

The 2N1374 (Twin Disc SP211) Rear Power Take-Off (PTO) Clutch Group used on earlier 3208 Industrial Engines, can be changed to use nonmetallic clutch plates. The 3N7952 Nonmetallic Clutch Plates can be used to replace the 7S7934 Sintered Iron Clutch Plates. The nonmetallic clutch plates give improved service life. When a nonmetallic clutch plate is installed, inspect the clutch discs and drive ring. If the drive ring is worn or damaged it must be replaced.

In some applications, it may be desirable to change the 2N1373 Clutch Assembly from oil lubrication to grease lubrication. The grease lubrication conversion is given in Special Instruction Form SMHS8189. See the illustration for the dimensions of the fabricated labyrinth seals needed. Two labyrinth seals, fabricated from mild steel, will be needed for each clutch.

Fabricated labyrinth seal.

Caterpillar Information System:

1984/11/26 Causes And Correction Of Opposite Crankshaft Rotation In Direct Injection Engines{1000}

1984/11/19 Remanufactured Piece Parts Now Available For Turbochargers (U.S. and Canada Only){1052,1053,1056,1065,1077}

1984/11/19 Fuel Setting And Related Information Microfiche Corrected, Improved{0374,0375}

1984/11/19 Additional Information For Correct Fuel Injector Timing{1290}

1984/11/19 Remanufactured Cylinder Head Groups{1100,1101,7554}

1984/11/19 Use Care When Installing Circuit Boards In Regulators{4467}

1984/11/05 Thread Identification Kit Available{0600,0760}

1984/11/05 Preferred Engine Timing Procedures{1250,1286,1290,1292}

1984/11/05 Remove Diode Assemblies From Shutoff Solenoids{1259}

1984/10/29 New Outer Bearing Race Used In Auxiliary Fan Drive Group{1390}

1984/10/29 New Diaphragm Used In BrakeSaver Control Valve Group{1159,1155}

1984/10/29 New Cylinder Heads, Fuel Nozzles And Fuel Nozzle Adapters Used{1101,1106}

1984/11/26 Important Differences In Engine Arrangements On 3208 Engines Equipped With Turbochargers{1000}

1984/11/26 Identification Of Camshaft Groups And Valve Mechanism Groups{1210,1102}

1984/11/26 New Fuel Injector Assembly Reduces Smoke When Operating At Lower RPM And Load{1251,1250}

1984/12/10 Fill Oil Sump Before Installing Woodward Governor{1264,1288,1289}

1984/12/10 New Pressure Gauges Have Dual Scales [kPa (psi)]{0600}

1984/12/10 Lubrication Decals (Films) Are No Longer Used On Machines{7557}

1984/12/10 Starters That Remain Engaged After Engine Is Running{1453}

1984/12/10 New 76.6°C (170°F) Water Temperature Regulators Used In Inlet Controlled Cooling Systems{1355,1350}

1984/12/10 New Air Pipe Retainers Used To Connect Turbocharger To Aftercooler{1052,1063}

1984/12/10 Improved BrakeSaver Seals Available{1155}

1984/12/10 A Soot Filter Is Available For Use With Air Cleaners{1054}

1984/12/10 New Seal Used In Alternator Mounting Group{1405,1400}