New Relay Modules Replace Relay Assembly In Junction Box Groups {1400,1408}
Usage:
G3606 (3XF),
G3608 (4WF),
G3612 (1YG),
G3616 (4CG) Engines
Description of Change: New relay modules are used to replace the former relay assembly in the junction box groups on these engines. Three new relay modules are required to replace the former relay assembly. The new relay modules provide increased resistance to vibration damage.
Adaptable To: Three new 121-6159 Relay Modules replace the former 3E-0456 Relay Assembly in the 122-0803 and 125-3904 Junction Box Groups.
Caterpillar Information System:
1997/02/17 Improved Tube Assemblies And Electronic Control Group (Pressure Module) Improves Reliability {1058,1285}
1997/02/17 New Rod Ends Used In Exhaust Bypass Groups {1057,1250}
1997/02/17 New Harness Assembly For 3500B Engines {1408}
1997/02/17 Installation Of Piston Pin Retainer {1215}
1997/02/17 Premachined Valve Seat Inserts And Precision Valve Guide Increase Valve Life {1103,1104}
1997/02/17 New Exhaust Manifold Sections Contain A Port To Install Temperature Sensors {1059,1921}
1997/02/17 Basic Electronic Control Group (3408 Hi Performance Marine-E Rating) Improvement {1920}
1997/02/17 New Auxiliary Oil Filter Groups Reduce The Amount Of Air Accumulating In The Auxiliary Oil Filter Tank {1318}
1997/02/17 New IMPCO 400 Single Varifuel Carburetor Replaces Former IMPCO 200D Double Carburetor {1266}
1997/01/22 Recommendation For Connecting Rod Bearing Replacement{1219}
1997/01/22 Guidelines For Reusability Of Cylinder Head Studs, Main Bearing Cap Studs, Main Bearing Cap Cross Tie Bolts, And Connecting Rod Cap Bolts And Nuts{1100,1218,1230}
1997/01/22 New Idler Gear Assembly Containing Larger And Stronger Bearing Is Less Prone To Cavitation Erosion{5138}
1997/02/17 New Spark Plug Provides Better Heat Resistance {1555}
1997/03/01 New Turbocharger Group And Air Cleaner Mounting Group Provide Improved Reliability{1051,1052}
1997/03/01 New O-Ring Seal Used In Hydraulically Actuated Electronic Unit Injector (HEUI) Pump Group{1714}
1997/03/01 Diode Removed From Junction Box Group{1400,1417}
1997/03/01 Caterpillar Part Numbers Are Used For XQ Rental, Generator Set Circuit Breakers{4461}
1997/03/01 Product Support Literature Available{0374,1000}
1997/03/01 Marine Transmission Oil Pressure Sensor Location{3323}
1997/03/01 4C-8180 Timing Tool Group Required For Checking And Adjusting Fuel Injection Timing On 3408C And 3412C High Performance Marine Engines{1250}
1997/03/01 Improved Bushing O-Ring Seal Available For Injection Pump Groups{1251}
1997/03/01 Improvements Made To Remanufactured 0R-3008 Fuel Transfer Pump{1256}
1997/03/01 The Components Of The 7C-5001, 100-8227, And 104-6775 Gas Pressure Regulator Groups Are Available For Parts Service{1270}
1997/03/01 New Terminal-Mounted Resistor Assembly Allows Proper Loading Of Digital Diagnostic Tool Data Line{1417}