CHAPTER 4 MAINTENANCE INSTRUCTIONS
Section I. General
4-1.1 Unit level and Intermediate Direct Support and Intermediate General Support (IDS/IGS) maintenance on the
chlorination system is performed onboard by barge crew members whenever possible.
4-1.2 Any IDS/IGS maintenance beyond capability of crew members is provided by a shore-based area support
maintenance unit. This unit also determines if depot support maintenance is required.
4-1.3 Intermediate support maintenance is accomplished by replacement of components or major end items.
4-1.4 Unless other intermediate support procedures are directed, IDS/IGS maintenance normally is provided by an Army
Transportation Corps floating craft intermediate support maintenance unit serving terminal operating area.
Components to be disposed of are processed by this unit.
4-1.5 Maintenance Allocation Chart (MAC) is in TM 55-1930-209-14&P-18. For maintenance of other equipment
onboard, consult appropriate manual.
Maintenance procedures. Maintenance instructions are contained in the following sections: Section II,
Preventive maintenance checks and services; Section III, Troubleshooting; and Section IV, Maintenance procedures.
Section II. Preventive maintenance checks and services
4-3 See TM 55-1930-209-14&P-4, Appendix C for preventive maintenance checks and services for the chlorination
system. See TM 55-1930-209-14&P-19 for complete preventive maintenance checks and services for all ROWPU Barge
Section III. Troubleshooting
4-4.1 Metering pump. Troubleshoot metering pump according to Section 6, page 29, M. Roy Controlled Volume Pump
Manual, in Appendix B.
4-4.2 Chlorination unit . Troubleshoot chlorination unit according to Section B, Installation and Operation Instructions
Manual, on page 22 in Appendix B.
4-4.3 Metering pump control unit . Troubleshoot control unit according to page 29, Delta Instruction Manual, In
Chlorination system . Troubleshoot chlorination system according to Table 4-1.
For problems not covered In Table 4-1, consult manufacturers' manuals in Appendix B for
particular component Involved.