1998/02/01 Caterpillar

New Shut-Off Solenoid Group And Air Shut-Off Group Used In Air Shut-Off Groups {1078}

Usage:

3508B (2BM119, 3DM93, 7SM73) Marine, 3508B (4GM212, 6PN284) Generator Set, 3512B (7HM172, 8EM258, 4TN100) Marine, 3512B (8RM204, 6WN135) Generator Set, 3516 (4XF671, 5SJ537, 7KM22, 25Z5513) Generator Set, 3516 (27Z2772) Industrial, 3516 (9KF164) Locomotive, 3516B (8CN144, 8KN146, 9AN121) Marine, 3516B (6HN156, 7RN464) Generator Set Engines

Description of Change: A new, more robust shut-off solenoid group and air shut-off group is used in the air shut-off groups on these engines.

Adaptable To: Illustration 1 and Chart A identify the components of the new 141-6747 Shut-Off Solenoid Group. This new shut-off solenoid group replaces the former 113-1325 Shut-Off Solenoid Group which is canceled. The new shut-off solenoid group is used in the 113-1324, 120-4517, and 122-3200 Air Shut-Off Groups.

Illustration 2 and Chart B identify the components of the new 141-6746 Air Shut-Off Group. This new air shut-off group replaces the former 122-3385 Air Shut-Off Group. The new air shut-off group is used in the 118-6676 and 118-6677 Air Shut-Off Groups.

The new 141-6747 Shut-Off Solenoid Group and 141-6746 Air Shut-Off Group are in effect as shown above.

Illustration 1.
Identification of components in the new 141-6747 Shut-Off Solenoid Group. Air shut-off housing (A).

Illustration 2.
Identification of components in the new 141-6746 Air Shut-Off Group.

Caterpillar Information System:

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1998/02/01 New Seal Between Front And Rear Stator Housings {1552}

1998/01/20 Gas Engine Fuel Specifications {1280}

1998/01/20 New Stud And Nut Replace Unit Injector Hold Down Bolt In Fuel Injection Pump Group {1290}

1998/01/20 Cleaning Exhaust Manifolds On 3600 Engines Operating On Heavy Fuel Oil {1059}

1998/01/20 Final Adjustment For Hydrax Controlled Exhaust Bypass (Wastegate) Group {1057}

1998/01/20 Procedure For Testing Electronic Ignition System (EIS) Transformer Groups {1550}

1998/01/20 New Tightening Specification For "Spin-on" Oil Filter Assembly {1306,1308}

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1998/01/20 Improved Water Seal Reduces The Possibility Of Cylinder Head Joint Water Leaks {1100}

1998/01/20 New Support Assembly (Turbocharger) Added {1059}

1998/01/20 The 154-6732 Pump Kit Is Available To Help Service The Unit Injector Hydraulic Pump Group {1714}

1998/02/01 Breather Group Tee Hose And Elbow Hose Made From More Heat Resistant Material {1317}

1998/02/01 1997 3600 Diesel Technical Communicators Conference Participant's Guide Available {0374}

1998/02/01 3600 Diesel Marine Monitoring System Owner's Manual Available {0374}

1998/02/01 Replacement Labels Available For Contactors {0653,7400}

1998/02/01 Be Sure To Consider Combustion Air Content When Assessing Air Induction System Damage {1051,1058,1063,1087}

1998/02/01 New Exhaust Fitting Assembly Improves Reliability For Exhaust Bellows {1061}

1998/02/01 Aftercooler Core Performance Measurement {1064}

1998/02/01 New Air Shut-Off Group Provides Increased Serviceability And Reliability {1078}

1998/03/01 Use 126-7175 Push Puller Assembly For Various General Purpose Applications{0600}

1998/03/01 Use 1U-9500 Flow Communicator On Caterpillar Diagnostic Tools{1250,0782}

1998/03/01 Replacement Available For 7M-7260 Liquid Gasket{0648,0649,0651}

1998/03/01 Replacements Products Available For 4C-4079 Brake And Component Cleaner{0680}