Table 4-1. Unit Preventive Maintenance Checks and Services.

TM 9-6115-661-13&P

Table 4-1. Unit Preventive Maintenance Checks and Services.

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-39.

Unit B of the AN/MJQ-39, PU-800, PU-801, PU-801A, and PU-802 does not

have a switch box. Maintenance for the switch box is only applicable to Unit

A of the AN/MJQ-39.

Not Fully Mission

Item to be

Item

Procedure

No.

Interval

Capable if:

Checked or Serviced

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.

Inspect power cable for worn,

Power cable is

Semi

POWER CABLE

frayed or cracked insulation,

unserviceable.

annually

AN/MJQ-39

loose terminal lugs, and loose

connections. Tighten as needed.

Semi

SWITCH BOX ASSEMBLY

a. Inspect switch box assembly.

annually

AN/MJQ-39

Refer to paragraph 4-12.

b. Inspect mounting brackets for

cracks or loose or missing

hardware.

Mounting rail is

Semi

MOUNTING RAILS

Inspect for cracks and

cracked or deformed.

deformation.

annually

Semi

FIRE EXTINGUISHER

a. Inspect for broken seal and

annually

damage to handle.

Fire extinguisher not

b. Weigh to determine whether

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.

4-11

Change 3