Table 4-1. Unit Preventive Maintenance Checks and Services for AN/MJQ-40, PU-803, and PU-804.

TM-9-6115-662-13P Power Unit Diesel Engine Driven 1 Ton Trailer Mounted 5 Kw 60 Hz PU-797 Manual
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TM 9-6115-662-13&P Table 4-1. Unit Preventive Maintenance Checks and Services for AN/MJQ-40, PU-803, and PU-804. NOTE This PMCS table lists the checks and services as performed on a single Power Unit. These procedures must be duplicated on each Power Unit that makes up the AN/MJQ-40. Unit B of the ANMJQ-40, PU-803, and PU-804 does not have a switch box. Maintenance for the switch box is only applicable to Unit A of the AN/MJQ-40. Item Item to be Not Fully Mission No. Interval Checked or Serviced Procedure Capable if: WARNING Before performing any maintenance that requires climbing on or under trailer, make sure that trailer handbrakes are set, trailer front landing leg is lowered, and rear leveling-support jack is lowered. Injury to personnel could result from trailer suddenly rolling or tipping. 1 Semi- POWER CABLE Inspect power cable for worn, Power cable is annually frayed or cracked insulation, unserviceable. loose terminal lugs, and loose connections. Tighten as needed. 2 Semi- SWITCH BOX ASSEMBLY a. Inspect switch box assembly. annually Refer to paragraph 4-12. b. Inspect mounting brackets for cracks or loose or missing hardware. 3 Semi- MOUNTING RAILS Inspect for cracks and Mounting rail is annually deformation. cracked or deformed. 4 Semi- FIRE EXTINGUISHER a. Inspect for broken seal and annually damage to handle. b. Weigh to determine whether Fire extinguisher not charge is sufficient. Weight is charged. about 13 pounds when fully charged. If weight is 12.5 pounds or less, send to specialized activity for recharging. 4-10

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