CHAPTER 4 - UNIT MAINTENANCE.

TM 9-6115-661-13&P

CHAPTER 4 - UNIT MAINTENANCE.

Chapter 4 provides instructions covering the power unit and power plant maintenance that must be

performed at unit level. The chapter is divided into eight sections, as follows:

Section I - Repair Parts; Special Tools: Test. Measurement, and Diagnostic Equipment (TMDE);

and Support Equipment. This section lists references that contain the required information.

Section II - Service Upon Receipt. This section contains instructions for inspecting and servicing each

power unit and power plant when it is received. It includes instructions for unpacking the equipment

when it is received. The instructions include unpacking and stowing the basic issue items that accompany

the power unit or power plant. Also included are instructions on positioning the power unit or power

plant for operation end connecting an external fuel source.

Section III - Unit Lubrication. This section lists the applicable references that contain lubrication

instructions for the generator sets and trailers. It also contains specific lubrication instructions for the

power units or power plant components not covered in the generator set or trailer references.

Section IV - Unit Preventive Maintenance Checks and Services (PMCS). This section contains

instructions covering the PMCS that must be performed at the unit maintenance level. A table provides

information on maintenance intervals and actions required.

Section V - Troubleshooting. This section covers troubleshooting procedures and corrective actions that

are to be performed at the unit maintenance level.

Section VI - Maintenance Procedures. This section lists the applicable references that cover unit

maintenance of the generator sets and trailers. It also contains detailed instructions on unit level mainte-

nance of the power unit and power plant components that are not covered in the generator set and trailer

references.

Section VII - Administrative Storage. This section provides information on short term, intermediate

term, and long term storage.

CHAPTER 5 - DIRECT SUPPORT MAINTENANCE INSTRUCTIONS.

Chapter 5 provides instructions for the maintenance actions designated to be performed at the direct

support maintenance level. The chapter is divided into three sections, as follows:

Section I - Repair Parts; Special Tools; Test, Measurement, and Diagnostic Equipment; and

Support Equipment. This section lists the documents that contain the needed information.

Section II - Troubleshooting. This section includes instructions for troubleshooting faults in the

opration of the generator switch box assenbly. It includes eight go-no-go flowcharts for eight possible

switch box malfunctions.

Section III - Maintenance Procedures. This section lists the references that contain direct support

maintenance instructions for the generator sets and trailers. In addition, it contains detailed instructions

for direct support maintenance of power unit and power plant components not covered in the generator set

and trailer references.