TM 11-5820-489-10
TO 31R4-2GRA6-31
Section Il. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
2-2. GENERAL
Operator's Preventive Maintenance Checks and Services (PMCS) are the re-
quired daily and weekly inspections and care of your equipment necessary to
keep it in good operating condition.
Tools and Materials
No tools or equipment are required for operator maintenance. The following
cleaning materials will be useful to you:
Lint-free cloths
q
q Soft bristle brush
q Dishwashing compound or detergent
q Cleaning
compound
2-3. PREVENTIVE MAINTENANCE CHECKS AND SERVICES PROCEDURES
NOTE
If your Control Group AN/GRA-6 must be in USE ALL
THE TIME, check and service those items that can be
checked and serviced without stopping its operation.
Make COMPLETE checks and services ONLY when the
Control Group is finally SHUT DOWN.
