1977/01/17 Caterpillar

New Flywheel Assemblies Are Available For Use With Spicer Transmissions{1156}

Usage:

3406 and 3408 Truck Engines

SUPPLEMENT: 06/06/77

SERVICE MAGAZINE, JANUARY 17, 1977, PAGE 7. In the article "New Flywheel Assemblies Are Available For Use With Spicer Transmissions", change the word "Transmissions" in the title of the article to read "Clutches". Also, change the first sentence in the first paragraph to read, "New flywheel assemblies are used with the Spicer Clutches to give more clearance between these two components".

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

Description of Change: New flywheel assemblies are now used with the Spicer Transmissions, to give more clearance for the dampened (less vibration) Spicer clutch. With the former flywheels, the clutch disc can wear enough to permit these two parts to have contact.

Adaptable As: Shown in the chart. The new flywheel assembly is a direct replacement for the former flywheel assembly on earlier engines.

Caterpillar Information System:

1977/01/17 New Tie Bars Improve Stability Of The Fuel Injection Test Bench{0652}

1977/01/17 SIRS Component Code List{0331}

1977/01/17 New Special Instruction For Troubleshooting 5P2150 Engine Horsepower Meter{0651,1250}

1977/01/17 Blades For Hose Saw Cut Off Group Must Now Be Sent To New Address To Be "Resharpened"{0664}

1977/01/17 Improved Main And Connecting Rod Bearings Have Aluminum Alloy With More Strength{1230}

1977/01/17 Removal Of Bolts With Metal Locks Easier With New Sockets{0610}

1986/12/22 New Torque Control Group Used In Governor And Fuel Injection Pump Group{1264}

1986/12/22 New Oil Level Gauges (Dipsticks) With "Full Range" Used{1326}

1986/12/22 Fuel Dilution Troubleshooting Procedure{1250}

1986/12/22 Use Heli-Coils To Repair 5.4" Bore Engine Rocker Arm Assemblies{1123,1105}

1986/12/22 Engine Power Increased{1250}

1986/12/22 Two New Shop Towels And Towel Bracket Available In North America{0600}

1977/01/17 New Water Temperature Regulator Has A Closer Fit At The Valve Seat To Keep Leakage At A Minimum{1355}

1977/01/24 Drain All Coolant From Engines Before Shipment For Remanufacturing{0355,1350}

1977/01/24 Exhaust Manifold Coupling With A Slip Fit Now Used Instead Of A Coupling With Piston Rings{1061}

1977/01/24 Exhaust Valve Guides With A Counterbore Are Now Available{1104}

1977/01/24 Adapter For Disassembly And Assembly Of Turbocharger Cartridge{0620,1053}

1977/01/24 Same Valve Camshaft Assembly Used On Direct Injection Engines Now Used On Engines That Have Precombustion Chambers{1210}

1977/01/24 Coupling With A Slip Fit Now Used At Turbocharger Exhaust Outlet Instead Of Coupling With Piston Rings{1061}

1977/01/24 New Cylinder Liners{1216}

1977/01/24 Lightening Holes Not Drilled In Some Crankshafts{1202}

1977/01/31 New Disconnect Switch Assembly Has Better Resistance To Corrosion{1411}

1977/01/31 Improved Crankshaft Main Bearing With Higher Strength Aluminum Alloy{1203}

1977/01/31 New Remote Control Switch Assembly For Electric Hydraulic Pumps{0621,0623}