1982/09/13 Caterpillar

New Seal Rings Used In BrakeSavers {1155}

Usage:

3406 And 3408 Truck Engines Equipped With BrakeSavers

Description of Change: A new seal ring is used in the BrakeSaver group on 3406 and 3408 Truck Engines so equipped. The new seal ring is made of cast iron, which is not as flexible as the bronze material used in the former seal ring. The new seal ring will decrease oil leakage in conditions where the oil pressure against the seal is high. Also, the new seal ring has a larger free diameter, which makes installation easier. The cast iron material in the new seal ring will not be damaged as easily during storage and installation as the softer bronze material in the former seal ring.

Adaptable As: The new 1W4204 Seal Ring is a direct replacement for the former 9N39 Seal Ring, which is canceled.

Caterpillar Information System:

1982/09/13 New Bearing Used In Air Starting Motor {1451}

1982/09/06 New Instruction Card Available For 6V87 Valve Stem Gauge{0653}

1982/09/06 Reusability Of Camshaft Rollers And Roller Followers{1209,1210}

1982/09/06 Improved Inlet And Exhaust Valves{1105}

1982/09/06 New Brass Bonnet, Bonnet Assembly Used In Heat Exchanger{1379}

1982/09/06 Vacuum Tester Checks For Leaks Between Valve Face and Seat{0651,1103,1105}

1982/08/30 Make Sure Generator Leads Do Not Move Against Frame{4459}

1982/08/30 Added Methods To Decrease The Effects Of High Sulfur Fuels{1355,1280,1318,1000}

1982/08/30 Change Made To Installation Procedure For 3N5620 Service Disconnect Spacer Group{0374,1000}

1982/08/30 New Rear Support For Oil Cooler Is Thicker, Has Cast-In Spacers{1378}

1982/08/23 New Time Delay Conversion Groups Available{7400}

1982/08/23 Service Life Of Slip Rings Can Be Extended{4464}

1982/09/13 Two Oil Change Kits Have Oil Filters, Cooling System Conditioner {1318,1350}

1982/09/13 New Water Pumps Use New Seal And Impeller {1361}

1982/09/13 Caterpillar-Built Industrial Engines Available In New Machines {0371,1000}

1982/09/13 New Rocker Arm Assemblies Used {1102}

1982/09/13 Seat Belt Hook Fasteners {7327}

1982/09/13 Improved Idler Pulley Assemblies For 3208 Engines {1156,1358,4306}

1982/09/20 FT1421 Spring Installer Makes Installation of Seat Suspension Springs Easier{7324,0622}

1982/09/20 New Meter Can Be Used To Check Wire Feed Rates During Weld Operations Of Undercarriage Components{0653}

1982/09/20 Improved Lubrication System{3311}

1982/09/20 New Recommendations For Track Roller Wear Before Rebuilding{4180,0662}

1982/09/20 Filler Cap Locks Prevent Vandalism (Damage) To Fluid Compartments{1273,1316,1382,3177,5056}

1982/09/20 Dial Bore Gauge And Size Setting Fixture Available{0653}