Table 4-1. Unit Preventive Maintenance Checks and Services (PMCS) (cont).
H - Hours of operation
S - Semiannually
Item to be inspected
Clean and repack. (page 4-180,
Trailer Road Test
Perform road test paying special attention to items
that were repaired or adjusted, in accordance with
Section VI. TROUBLESHOOTING
4-13. Power Unit Troubleshooting. There are no troubleshooting procedures authorized at unit level for
the power unit end item. Troubleshooting procedures for the individual generator set and trailer are contained in
their respective technical manuals referenced below.
Generator Set Troubleshooting. Refer to TM 5-6115-584-12 for troubleshooting procedures applicable to
the generator set.
Trailer Troubleshooting. Refer to TM 9-2330-202-14&P for troubleshooting procedures applicable to the
Section VIl. RADIO INTERFERENCE SUPPRESSION
4-14. General Methods Used to Attain Proper Suppression. Essentially, suppression is attained
by providing a low resistance path to ground for stray currents. The methods used include shielding ignition and
high-frequency wires, grounding the frame with bonding straps, and using filtering systems.
4-15. Radio Interference Suppression Components. All component parts on the power unit end
item, whose primary or secondary function is radio interference suppression, are on the generator set. Refer to
TM 5-6115-584-12 for location of radio interference suppression components.
Section Vlll. MAINTENANCE OF POWER UNIT TRAILER
4-16. General. This section of the manual contains unit level maintenance procedures for components of the
M116A1 trailer added when the trailer is used as part of the PU-751/M power unit. These components are not
covered in the overall trailer maintenance manual. For all other unit maintenance procedures on the trailer, refer
to TM 9-2330-202-14&P.