1998/05/04 Caterpillar

Improved Alternator Groups Now Available{1405}

Usage:

Machines And Engines Using 121-4134, 121-4135, 117-1379, 125-9597, 107-7977, And 132-2156 Alternator Groups

Reference: Service Manual Mode; SENR4757-01; System Operation Testing And Adjusting, Delco Remy 21-SI Series Alternators; October 1997.

Description of Change: Improved alternator groups are now available which use an improved rear bearing.

Adaptable To: The improved 121-4134, 121-4135, 117-1379, 125-9597, 107-7977, and 132-2156 Alternator Groups are manufactured 2 February 1998 and later. The date code format for the alternator groups is YYMDD, where YY=year (i.e, 98), M=month code, and DD=day of the month (01-31). The month code is shown in Table 1. For example, 98B02 describes the alternator group produced on the 2nd of February, 1998.

Caterpillar Information System:

1998/05/04 New Fans Improve Reliability Of The Air Conditioner Condenser Group{1805,7320}

1998/05/04 Correction To Service Manual Module, SENR6794-01, Specifications, 938G Wheel Loader And IT38G Integrated Toolcarrier Hydraulic System{0374,1386}

1998/05/04 Procedure For Adjusting Hood Side Panels{7251}

1998/05/04 New Custom Product Support Literature Is Available For 776D Tractors And 777D Off-Highway Trucks Equipped With 3Z-6435 Tachograph Arrangement (Factory/Field Installation){0374,7317}

1998/05/04 New Custom Product Support Literature Is Available For 773D And 775D Trucks Equipped With 3Z-6309 Engine Pre-Lubrication Group (Field Retrofit){0374,1469,1300}

1998/05/04 Load Piston Body Changes In ICM Pressure Control Valve Group{3073,3030}

1998/05/04 New Pumps For C-Series Backhoe Loaders{5070}

1998/05/04 Field Installation Of The CD Player{7338}

1998/05/04 Improved Final Drive Pinion Bearing Setting Procedure Used And New Shim Pack Kit Available{4050,4091}

1998/05/04 Procedure To Retrofit 1R-0762 "Radial Seal" Filter Assembly{1260,1262}

1998/05/04 New Coolant Level Sensor And Harness Assembly Improves Ground Path{1377,7470}

1998/04/27 Ladder Clamps Added To Secure Conveyor Pump EDC Wires {5702}

1998/05/04 ROPS Instruction Film Available Through Parts Service{7177,7405}

1998/05/04 Correction To 9C-8172 Brake & Planetary Group{0374,4011,4255}

1998/05/11 New Gear Assembly And Stub Shaft Used In Front Gear Group {1206}

1998/05/11 New Intermediate Cylinder In Hoist Cylinder Increases Clearance Between Rod And Head To Prevent Binding {5102}

1998/05/11 Weld Repair Procedure For Rear Upper Front Strut Mounting Plates {7050,7201}

1998/05/11 New Rock Ejector Assembly Reduces Tire Damage {7157}

1998/05/11 Service Intervals For RAYCOR Fuel Filter Group {1261,1250,1280}

1998/05/11 Supplement To Correct Bearing Cap Torque For Differential {3258}

1998/05/11 Supplement To "Improvements To Brake Caliper Seals Prevent Leaks In High Temperature Applications" {4256}

1998/05/11 Operation Of The Conveyor System In Manual Override {6631,5643}

1998/05/11 Corrections And Release Of Schematic {5050,4350,3203}

1998/05/11 New Engine Lifter Arm Assembly With Crowned Roller Used In Lifter Groups {1209}