1999/04/01 Caterpillar

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

Usage:

All 3500 Series Generator Sets

Reference: Special Instruction, SEHS7259, "Alignment Of Single-Bearing Generators", 3500 Series Gensets.

Reference: Special Instruction, REHS0177, "Alignment Of The Close Coupled Two-Bearing Generators", 3500 Series Gensets.

Reference: Special Instruction, SEHS7073, "Alignment Of Two Bearing Generators", 3500 Series Gensets.

A re-alignment warning tag has been released and will be in place on all shipped 3500 Series Gensets. The warning tag instructs the dealer to be sure to align the engine and generator at installation. There are three primary reasons that 3500 Series Gensets must be checked for alignment:

1. Mishandling during shipment can cause alignment problems.

2. The alignment can change depending on the floor the Genset is placed on. Often engine room floors are not of the same flatness as that of the factory floor. The 3500 Series gensets are aligned on a controlled surface upon assembly in the factory. This is done to ensure smooth operation in the test cell.

3. The installation of vibration isolators can affect alignment, and any adjustment of the isolators can also affect alignment. Due to these three factors, it is recommended that the alignment be checked and re-aligned if necessary when a genset is placed in its' permanent position. Periodic alignments are also recommended at engine maintenance intervals. Engine and generator bearing wear is minimized when proper alignment is maintained. The alignment procedure is located in the above references.

Caterpillar Information System:

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

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 Fuel Shutoff Solenoids With Improved Durability Available{1259}

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}

1999/04/01 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}

1999/04/01 Updated 133-6350 EMCP II Generator Set Control Group Corrects Hourmeter Programming and Spare Fault Operation{4490}

1999/04/01 New Control Panel Films Show That SR4B Generators Are Not To Be Wired In The Delta Configuration{7557,7566}

1999/05/01 Use 157-3722 Driver To Remove And Install Engine Valve Guides{0703,1104}