Quarterly Preventive Maintenance Checks and Services Chart

TM 11-2330A C2

29.3 Quarterly Maintenance

Quarterly preventive maintenance checks and services on the

equipment are required. Periodic daily (par. 24), weekly (par. 25),

and monthly (par. 29.2) preventive maintenance checks and serv-

ices constitute a part of the quarterly preventive maintenance

checks and services and must be performed concurrently. All defi-

ciencies or shortcomings will be recorded in accordance with the

requirements of TM38750. Perform all the checks and services

listed in the quarterly preventive maintenance checks and services

chart (par. 29.4 ) in the sequence listed.

29.4 Quarterly Preventive Maintenance Checks and Services Chart

References

Procedure

Item

Sequencc

No.

DA Pam

Publications ----- See that all publications are

complete, serviceable, and

310-4.

current.

DA Pam

Modifications-----

Check DA Pam 310--4 to deter-

mine if new applicable MWO'S

310--4 and

have been published. All UR-

TM 33-750.

GENT MWO'S must be ap-

plied immediately. All NOR-

MAL MWO'S must be sched-

uled.

Optical mountings. Inspect all optical mountings

Par. 43.

for proper seating and firm

mounting.

Doors------------

Check doors for tight closure

and effective light sealing.

Bellows ---------- Check bellows (AP-5(1) only)

for light leakage.

Lubrication-------

Lubricate equipment in accord-

Par. 29.6h

ance with instructions.

To be accomplished semiannually instead of quartarly.

29.5 Touchup Painting Instructions

Remove rust and corrosion from metal surfaces by lightly sanding

them with fine sandpaper. Brush two thin coats of paint on the bare

metal to protect it from further corrosion. Refer to the applicable

cleaning and refinishing practices specified in TM 9-213.

TAGO 6432B