1993/04/05 Caterpillar

New Alternator Support Bracket Used In Alternator Mounting Group{1405}

Usage:

3176 (2YG, 7LG) Truck Engines

Reference: The article titled "Alternator Mounting Modifications " in this issue.

Description of Change: On engines where Caterpillar supplies the alternator mounting group, a new one piece alternator support bracket is used to replace two former brackets. In some applications, the former bracket between the water pump and alternator could fail, or the front housing could crack at the alternator bracket mounting pad. The flange on the new bracket is thicker to make it stronger. It is important to use the new longer mounting bolts and washers to insure adequate thread engagement in the aluminum water pump housing.

Adaptable To: The illustration and chart identify the new components in the 7E0557 Alternator Mounting Group. The former brackets are canceled and replaced by the new components.

Location of the new components in the 7E0557 Alternator Mounting Group.

If the front housing has failed on a 3176 Truck Engine in a Ford chassis, see the Reference Article

Caterpillar Information System:

1993/04/05 Oversize Pistons Not Available{1214,1216}

1993/03/29 New Exhaust Manifold Group With Spring Energized Seals Between Cylinder Head And Manifold; New Exhaust Elbow And Seals In Air Lines Group{1059,1061,1052}

1993/03/29 Aftercooler Group Changed To Provide Stronger Housing{1063}

1993/03/29 Personality Modules Available For Bulk Hauler Applications{1902}

1993/03/29 Corporate Key Start Switch Has Improved Action{1400}

1993/03/22 New Piston And Rod Group Has Lower Top Ring Position And Improved Ring Groove Cooling{1225}

1993/03/22 New Bushing Used In Fuel Injection Pump Groups{1251}

1993/03/22 1041820 Wiring Kit Available To Prevent High Coolant Temperature Alarm After Engine Shutdown.{7417}

1993/03/22 0R3765 Remanufactured Camshaft Available{1210}

1993/03/22 Publications Updated For Hydraulic Pump And Motor Service{0374,5050}

1993/03/15 New Attachment Governor Group Available {1264}

1993/03/08 Product Support Literature Available{0374}

1993/04/05 Alternator Mounting Modifications{1405}

1993/04/12 Seal Kits Are Now Available For Balderson Hydraulic Hammers{6300,6333}

1993/04/12 7L4095 Exhaust Manifold Available For Parts Service{1059}

1993/04/12 Component Cross Reference Lists For Programed Electronic Engine Control (PEEC) And Electronic Systems{1900}

1993/04/12 New Personality Modules Provide Improved Cruise Control{1902}

1993/04/12 Fan Drive Pulley Group Components{1359}

1993/04/12 New Seal Group Used In Water Pump Groups{1361}

1993/04/12 Adjustment Of 60670 Idle Air Lines Group (Idle Bleed Circuit){1266}

1993/04/12 New Expansion Tank Assembly Used In Expansion Tank Groups{1354}

1993/04/12 New Damper Guard Group Used{7150}

1993/04/12 New Bearing Assemblies Used On Main Shaft{3322}

1993/05/03 Governor Control Adjustment {1264}