1999/04/01 Caterpillar

New Fuel Shutoff Solenoids With Improved Durability Available{1259}

Usage:

3114 (6AF, 5JG),
3116 (2SG, 1NJ) Generator Set Engines;
3114 (5EF, 1ZG),
3116 (2WG, 4PG, 5EN, 2MR),
3126 (9ZR, 6MS),
3306B (7JB, 4NJ, 5DN, 8KR, 64Z) Industrial;
3116 (4KG, 1SK),
3126 (8NM, 6SR) Marine

Description of Change: Three new magnetic latch solenoid assemblies are now available. The new magnetic latch solenoid assemblies are used for fuel shutdown on a variety of Caterpillar machines. The new solenoid assemblies contain an internal switch in the solenoid's latch circuit. The solenoid's latch coil is energized when the machines keyswitch is placed in the "START" position. The internal switch places the latch coil circuit open at the time the coil latches. This prevents overheating of the latch coil in the event of an extended engine cranking cycle.

Adaptable To: The new 155-4651, 155-4652, and 155-4653 Solenoid Assemblies are direct replacements for the former 8C-3662, 8C-3663, and 3E-7985 Solenoid Assemblies.

Caterpillar Information System:

1999/04/01 Use 157-3716 (Exhaust) And 157-3717 (Intake) Valve Seat Drivers To Install Valve Seats In Engines With Unfinished Valve Guides{1103,0703}

1999/04/01 Needle Valve May Be Needed To Accurately Measure Engine Return Fuel Flow{1250,0782}

1999/04/01 Use 156-1060 Gas And 156-1070 Gas And Diesel Engine Analyzer To Check Emissions{1088,0781}

1999/04/01 New 153-9630 Sensor Test Group Adapter Kit For DataView Now Available{1000}

1999/04/01 New Caterpillar High Efficiency Fuel Filters With STAY CLEAN VALVES® Replace All Standard Fuel Filters In February Of 1999{1261}

1999/03/01 10W Hydraulic Oil Recommended For G3600 Hydraulic Actuators (HYDRAX) {5050,5095}

1999/03/01 Special Instructions For Converting To Hydraulic Actuator System (Hydrax) Now Available {1716}

1999/03/01 New O-Ring Seals Help Prevent Coolant Leaks In High Jacket Water Temperature Applications {1100,7555}

1999/03/01 New "Long Core" Aftercooler Provides Improved High Ambient Temperature Performance {1064}

1999/03/01 Use 146-2727 Tool Group To Monitor And Check Engine Performance On 3600 Engines {1000}

1999/03/01 New Engine Pressure Sensors Available {1916,1917,1922,1923,1924}

1999/03/01 Use 132-8263 Spanner Wrench To Remove And Install Terminal Assembly In Electronic Ignition System (EIS) Transformer Group {0712,1409}

1999/04/01 Use 154-8100 Fuel System Arrangement And 154-8101 Fuel System Group To Measure Engine Fuel Flow{1250,0782}

1999/04/01 New Oil Pump Group Used{1304}

1999/04/01 Re-Alignment Warning Tag On All 3500 Generator Sets Reminds Of Alignment Required At Installation{1021}

1999/04/01 New Exhaust Manifold Group Seals Provides Improved Exhaust Gas Sealing{1059}

1999/04/01 Be Sure To Use The Correct Gas Fuel Pressure{1250,1270,1293}

1999/04/01 Using The Correct Diode When Using The Customer Communication Module In Multiple Engine Applications{1902,0374}

1999/04/01 Heinzmann Wastegate Actuator Relocated{1057}

1999/04/01 New Cover And Plate Assembly Used In Oil Level Contactor Groups To Help Resist Vibration Damage{1326,7450}

1999/04/01 Protection From Paint Is Required For The G3600 Hydraulic Actuator (Hydrax) Shaft{1909,7581}

1999/04/01 New 155-5175 AC Current Probe For Generator Sets Now Available{1400,4450}

1999/04/01 Improved Data Logger Feature For Customer Communication Module{1926}

1999/04/01 Special Instruction, REHS0345-01, "Generator Service Literature Index" Is Available{4450}