OPERATOR MAINTENANCE INSTRUCTIONS
Maintenance and Reentry Control
Maintenance of Oral-Nasal Mask ................
Maintenance Procedures, Introduction ........
SECTION I. LUBRICATION INSTRUCTIONS
No special lubrication instructions are required for the helmet.
SECTION II. TROUBLESHOOTING PROCEDURES
No operator troubleshooting procedures are required for the helmet.
SECTION III. MAINTENANCE PROCEDURES
This section contains maintenance procedures which are the responsibility of operator level
maintenance as authorized by the maintenance allocation chart (MAC) and the source maintenance
recoverability (SMR) coded items that are identified in the repair parts and special tools list (RPSTL).
Maintenance at the operator level is restricted to the inspection and cleaning of the main
components and replacement of minor components such as thread protective caps and valve handles.
Maintenance procedures should be performed IAW the MAC.
Unless specified, procedures requiring disassembly of sub-
components will not be performed at the operator level.
3-2. Maintenance and Reentry Control Procedures.
Maintenance and reentry control procedures are established to document and maintain the
integrity, cleanliness, and safety of the system and to ensure work is done IAW proper specifications and
A reentry control (REC) report must be completed and approved for each maintenance action
and a control log will be maintained for each system. A sample REC report and a sample control log are
provided at the end of this chapter.
Instructions for completing the REC report (figure 3-1) are as follows:
REC Nr: A sequential three digit number assigned from the control log beginning with
Julian Date: Julian Date.