RING-SEAL 1P9216 - Caterpillar

Generator SetDG175-1 (S/N: KL91-UP)DG175-2 (S/N: KJ61-UP)DG200-1 (S/N: KM31-UP)DG200-2 (S/N: KJ71-UP)DG230-1 (S/N: KM41-UP)DG230-2 (S/N: KJ81-UP)DG250-1 (S/N: KM51-UP)DG250-2 (S/N: KJ91-UP)DG275-1 (S/N: KM71-UP)DG275-2 (S/N: KL41-UP)DG300-1 (S/N: KJ41-UP)DG300-2 (S/N: KJ21-UP)DG350-1 (S/N: KM81-UP)DG350-2 (S/N: KL61-UP)DG400-1 (S/N: KM91-UP)DG400-2 (S/N: KL81-UP)DG450-1 (S/N: KJ51-UP)DG450-2 (S/N: KJ31-UP)Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Important Safety Information
Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly.Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive.Ensure that all personnel are safe when using a tool, procedure, work method, or operating technique not recommended by Caterpillar. Ensure that the product will not be damaged or the product made unsafe by the operation, lubrication, maintenance, or the repair procedures that are used.
Do not operate or work on this engine unless you have read and understand the instructions and warnings in the Operation and Maintenance Manual. Failure to follow the instructions or heed the warnings could result in injury or death. Contact any Caterpillar dealer for replacement manuals. Proper care is your responsibility.
Personal injury or death can result from improper maintenance procedures. To avoid injury or death, follow the procedures exactly as stated below.
Accidental engine starting can cause injury or death to personnel working on the equipment.To avoid accidental engine starting, disconnect the battery cable from the negative (−) battery terminal. Completely tape all metal surfaces of the disconnected battery cable end in order to prevent contact with other metal surfaces which could activate the engine electrical system.Place a Do Not Operate tag at the Start/Stop switch location to inform personnel that the equipment is being worked on.
Before servicing/performing maintenance on the machine, electrical power must be physically disconnected; battery plugs must be disconnected from the batteries, or the trailing cable must be unplugged, and warning tags and padlocks shall be applied by a certified electrician. Certified electricians shall perform or direct any electrical work, including any energized testing, repair work in controllers, motors, or other approved compartments, and shall insure that all compartments are properly closed and inspected prior to re-energization. All applicable lock out and tag out procedures must be followed.
Problem
Caterpillar DG Series Gaseous Genset engines may malfunction due to calibration issue in Magnetic Pick Up (MPU1) flywheel sensor.Solution
Caterpillar is aware of this problem and as an interim action, perform the below procedure for calibrating the Magnetic Pick