Only use those authorized cleaning solvents or agents listed in Appendix E.
When cleaning grease buildup or rusty places, use a cleaning solvent. Then apply a thin coat of light oil to affected areas.
5-10. SHORTENED MAINTENANCE INSTRUCTIONS.
Local conditions of extreme heat, dust, cold, or wetness dictate that service intervals may need to be shortened.
5-11. ADDITIONAL MAINTENANCE INSPECTIONS.
Additional maintenance inspections may be required for the following reasons:
Prolonged storage. Heaters having been stored for a period of three months or more should be inspected.
Initial preparation upon receipt.
Preparation for storage.
5-12. LEAKAGE DEFINITIONS FOR PMCS.
It is necessary for you to know how fluid leakage affects the status of the Heater. Following are types/classes of leakage
an operator needs to know to be able to determine the status of the Heater. Learn these leakage definitions and
remember - when in doubt, notify your supervisor.
Equipment operation is allowable with minor leakages (Class I or II). Of course, consideration must
be given to fluid capacity in the item/system being checked/inspected. When in doubt, notify your
When operating with Class I or II leaks, continue to check fluid levels as required in your PMCS.
Class III leaks should be reported immediately to your supervisor.
CLASS I Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.
CLASS II Leakage of fluid great enough to form drops but not enough to cause drops to drip from item being
CLASS III - Leakage of fluid great enough to form drops that fall from item being checked/inspected.