5-15 . Operation under extreme conditions
Temperature extremes. Auxiliary generator set is designed to operate at ambient air temperatures from O to
122F. Normal lubricating oil is SAE 15W40. If temperature in the voids consistently reaches or exceeds 120F, use SAE
40. Additional information on lubricating oils is on page 58, Perkins Engines Operators Manual for Marine Diesel Engines
4.236, in Appendix B.
High humidity. High humidity increases probability of fuel oil becoming contaminated with moisture. For details
on combating this problem, see TM 55-1930-209-14 & P-8, Fuel Oil System.
SECTION IV. Maintenance Instructions
5-16 . General
5-16.1.1 Unit level and IDS/IGS maintenance on SAG is performed onboard by barge crew member whenever possible.
5-16.1.2 Any IDS/IGS maintenance beyond the capability of crew member is provided by a shore-based area support
maintenance unit. This unit also determines if depot support maintenance is required.
5-16.1.3 Intermediate support maintenance is accomplished by replacement of components or major end items.
5-16.1.4 Unless other intermediate support maintenance procedures are directed, IDSIIGS maintenance is normally
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.
5-16.1.5 Maintenance Allocation Chart (MAC) is in Appendix C of TM 55-1930-209-14 & P-18. For maintenance on other
equipment onboard, consult appropriate manual.
Maintenance procedures. Maintenance instructions are contained in the following paragraphs: paragraph 5-17,
Preventive maintenance checks and services; paragraph 5-18, Troubleshooting; and paragraph
5-17. Preventive maintenance checks and services. See TM 55-1930-209-14&P-9-1, Appendix C for preventive
maintenance checks and services for the electrical power system. TM 55-1930-209-14&P-19 for complete preventive
maintenance checks and services for all ROWPU Barge Systems.
5-18 . Troubleshooting
4.236M diesel engine. Perform troubleshooting as shown in troubleshooting chart on page 47, Perkins
Operators Manual for Marine Diesel Engines.
5-18.2 SC144E generator. Perform troubleshooting as described on pages 9 and 10, in Newage Stamford C Range
Frames 1, 2, & 3 Series 4 A.V.R. Controlled Operation and Maintenance Manual Machine Designations PC164, SC and
5-19 . Maintenance procedures. Detailed repair and maintenance procedures for this auxiliary generator set are in
manufacturers manuals provided with this manual and listed in Appendix B.