TM 11-5410-213-14P.
FM 10-67-2.
Supplemental maintenance requirements can be obtained from instruction maintenance booklets or
owner/operator manuals usually supplied from the manufacturers of the various equipment. If not available,
they may be requested from the appropriate manufacturer through command or supply channels.
Maintenance Intervals. Maintenance intervals are established by the appropriate maintenance manual
(TMs, FMs, or operator's maintenance manual) covering a particular unit. Depending on where the
equipment may be physically located, there could be local factors that would increase maintenance intervals
such as dust, temperature, and humidity. Age of equipment and maintenance history of equipment could
also require an increase of preventive maintenance.
Laboratory personnel should always be aware of symptoms in equipment that may indicate a change in
the interval of preventive maintenance is needed. Such examples might be temperature, vibration, reduced
efficiency, noise, and smell. All maintenance intervals that are established should be recorded in the
maintenance schedule and maintenance SOP.
Maintenance Schedule Check Sheet. A maintenance schedule check sheet should be prepared
detailing the maintenance to be performed on each piece of equipment. Variations may be used to keep
track of upcoming PMCS events.
Suspense Folders. Suspense folders containing DD Form 314 (Preventive Maintenance Schedule and
Record) should be maintained. These folders are given to technicians in the laboratory to check the listed
items and perform the required maintenance. A checklist format is satisfactory. The equipment in the
laboratory, whether in use or not, should remain in a high state of readiness.
Use of DD Form 314 (Preventive Maintenance Schedule and Record). The DD Form 314
is used to show when equipment is scheduled for periodic preventive maintenance and when maintenance
has been performed. The reverse side of DD Form 314 is used to record the time a piece of equipment was
not mission-capable either because of maintenance or because repairers were waiting for parts from supply.
Not all preventive maintenance should be recorded on DD Form 314.
Only preventive maintenance that is performed on a time or mileage basis should be scheduled and
recorded on DD Form 314. For example, DD Form 314 should be used to schedule and record maintenance
that is done every 3 months, after 1,000 hours of operation, or every 5,000 miles.
PART B - COMPLETE DA FORM 2407 WHEN REQUESTING MAINTENANCE
SUPPORT
DA Form 2407 (Fig. 4-1) is used by organizational maintenance personnel mainly to request support
maintenance. It is used when organizational maintenance personnel cannot repair a piece of equipment
because of a lack of ability or proper tools. All copies of DA Form 2407 are sent with the faulty equipment to
the support activity. The receipt copy is sent back to the owning organization where it is kept on file until the
equipment is returned.
DA Form 2407 is also used to report maintenance on certain sample items and to submit warranty
claims. DA Form 2407-1 is used where there are not enough lines on DA Form 2407. DA Form 2405 is used
by the owning organization to keep a record of DA Forms 2407 sent to support maintenance.
Purpose. Both DA Form 2407 (Maintenance Request) and DA Form 2407-1 (Maintenance Request
Continuation Sheet) serve as a request for maintenance support and give information to all levels of
maintenance management.
The DA Forms 2407/2407-1 are the source of information for the Army's work order data base, called the
Work Order Logistics File (WOLF) that provides statistical weapon analyses such as mean time to repair and
repair parts usage at the Direct Support (DS)/General Support (GS) levels of maintenance for selected major
weapon systems.
4-3
QM 5181
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