CYLINDER HEAD SERVICE ASSEM. 4N6765 - Caterpillar

Uninterruptible Power Supply: UPS 1000S (S/N: CZS1-UP) UPS 1000Z (S/N: EDZ1-UP) UPS 120 (S/N: CNK1-UP) UPS 1200S (S/N: CZT1-UP) UPS 1200Z (S/N: HDR1-UP) UPS 150 (S/N: CPC1-UP) UPS 250 (S/N: CNM1-UP; APZ1-UP) UPS 300 (S/N: CNJ1-UP; CPZ1-UP) UPS 301 (S/N: CSY1-UP) UPS 500 (S/N: CSE1-UP) UPS 600 (S/N: CTX1-UP) UPS 750 (S/N: CPM1-UP) UPS 900 (S/N: CRY1-UP) UPS500G (S/N: TYD1-UP) UPS600G (S/N: DLD1-UP)Introduction
This Special Instruction outlines the procedure for converting single phase flywheel inverter to three phase flywheel inverter using 449-9066 Converter Module Gp on certain Uninterruptible Power Supply .Important Safety Information
Do not perform any procedure in this Special Instruction until you have read this Special Instruction and you understand this information. Use only proper tools and observe all precautions that pertain to the use of those tools. Failure to follow these procedures can result in personal injury. The following procedures should also be observed.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 in order 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 any tool, procedure, work method, or operating technique you use that is not recommended by Caterpillar is safe.Ensure that the product will not be damaged or the product will not be made unsafe by the operation, lubrication, maintenance, or repair procedures used.After power is removed, wait for 5 minutes before the UPS is opened. This action allows the capacitors to discharge. Ensure that the capacitors are at a zero energy level before performing work.Personal Protective Equipment (PPE) suitable to the work being performed must be worn when performing maintenance on the UPS.
Working with electrical circuits is hazardous and exposes personnel to electrical potential. To ensure safe operation, personnel must be trained in proper operating procedures. Bodily contact with electrical potential will cause serious personal injury or death.
High voltage may be present. Work on this equipment must be performed by authorized trained personnel. Failure to disconnect the power source before performing maintenance or removing modules exposes personnel to electrical potential. Bodily contact with electrical potential will cause serious personal injury or death.
Damage to the flywheel units can occur if the rotor for the flywheel is turning during the process of moving the unit.Do not move the flywheel units without the bearing retainers installed.
General Hazard Information
Attach a "Do Not Operate" warning tag or a similar warning tag to the key switch or to the controls