Organizational Monthly Preventive Maintenance Checks and Services Chart

not require monthly preventive maintenance. Air filters

TM 11-5895-833-12/NAVELEX 0967-LP-550-1010/TO

should be cleaned and/or replaced on a monthly basis, if

31R5-2TSC54-91

inspection dictates a need for such action.

conditions. Equipment maintained in a standby (ready for

immediate operation) condition must have monthly

preventive maintenance checks and services performed

on it. Equipment in limited storage (required service

before

operation)

does

4-12. Organizational Monthly Preventive Maintenance Checks and Services Chart

Sequence

Item to be

number

Inspected

Procedures

References

Publications

Check to see that all publications are complete,

DA Pam 3104

serviceable, and current.

Modifications

Check DA Pam 310-7 to determine if new

DA Pam 310-7 and

applicable MWO's have been published. ALL

TM 38-750

URGENT MWO's must be applied immedi-

ately. All NORMAL MWO's must be sched-

uled.

Spare parts

Check all spare parts (together and organiza-

TM 11-5895-833-20P

tional) for general condition and method of

storage. No overstock should be evident and

all shortages must be on valid requisitions.

Equipment hardware

Tighten loose bolts, nuts, and screws that ho ld

equipment. Replace missing bolts, screws,

nuts, and washers. Replace all badly burred

screws, bolts, and nuts which cannot be en-

gaged or turned with a screwdriver or wrench.

Signal and power cables and cords Dress all cables and cords neatly.

Miscellaneous items

Check to see that all items not required for

immediate use are properly stored.

Cable layout

Inspect cable layout and relocate cables as

necessary so that they are not endangered

by and are not dangerous to person nel.

Section II. CORRECTIVE MAINTENANCE

checks (o not reveal the cause of malfunction, higher

4-13. Organizational Troubleshooting Information

category of maintenance is required.

The troubleshooting and repair work that can be

4-14. Report of High-Bit Error Rate

performed at the organizational maintenance category is

Report of a high-bit error rate from the Satellite Technical

necessarily limited in scope by the tools, test equipment,

Controller, requires that the RF LO FAULT INDICATOR

replaceable parts issue, and the existing tactical

lamp on the up and down converter be monitored. A

situation. Accordingly, trouble-shooting is based on the

flashing indication is given if a series of phase noise

performance of the equipment in response to a

bursts of excessive amplitude are being generated within

predictable set of conditions and the use of the senses in

a preset interval by the associated frequency synthesizer

determining such troubles as burned-out indicator lamps,

or frequency generator subsystem elements. These

fuses, and loose connections. When an equipment

disturbances are not readily detected by conventional

trouble occurs, make a visual inspection of all equipment

testing methods and are a critical factor in data

controls and cable connections before performing any

transmission when they occur. Monitor the RF LO

detailed troubleshooting procedures. The following visual

FAULT INDICATOR lamp of the converters. Record time

checks should be made by operational personel to

and duration of any RF LO FAULT INDICATOR flashing

determine the possible cause of malfunction.

a. Check all equipment controls for proper positioning.

and coordinate with the Satellite Technical Controller.

b. Check to see that all signal and power cable

4-15. Touchup Painting Instructions

connections are correctly located and secure.

Remove rust and corrosion from metal surfaces by lightly

c. Perform other visual checks as indicated in the

sanding with sandpaper. Brush two coats of paint on the

appropriate technical manuals (app A).

bare metal to protect it from further corrosion. Refer to

d. If the trouble is not apparent, or the above

the applicable cleaning and refinishing practices

specified in TB 43-0118.

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