Leak Testing - MSA MMR Upgrade Instructions

Over-the-shoulder quick-fill system configuration is
not compatible with the 3000psi Operating System Air
Mask. Failure to follow this warning can result in seri-
ous personal injury or death.
CHECKING FOR LEAKS AND PROPER OPERATION
1. Follow the User's Instructions supplied with the air
mask to connect the Audi-Larm™ Audible Alarm to a
fully charged cylinder.
2. Check that the bypass is closed.
DO NOT try to connect a high pressure (4500psig)
cylinder to a low pressure apparatus. Even though the
coupling nut will not thread all the way on the cylinder
valve and bleed holes in the cylinder valve will let the
air escape and not enter the system, this is a danger-
ous condition. Failure to follow this warning can result
in serious personal injury or death.

LEAK TESTING

DO NOT use a 2216psi Air Cylinder on a 3000psi
Operating System. Such a configuration is not
approved by NIOSH. Failure to follow this warning
can result in serious personal injury or death.
3. Open the cylinder valve fully. The (pressure gauge or
ICM Unit) remote gauge should indicate the pressure
in the cylinder.
4. Close the cylinder valve and watch the (pressure
gauge or ICM Unit) remote gauge. There should be no
drop in pressure if the apparatus is leak-tight. If the
gauge needle moves, check the components for leaks
using leak detection solution. Follow the Leak Test
Procedures in the Air Mask Maintenance Manual.
Correct any leaks before proceeding.
5. Be sure the cylinder valve is fully closed. Open the
bypass valve to relieve all pressure from the system.
6. After all pressure is relieved from the system, close the
bypass valve completely.
7. The air mask is now ready for service.
8. Read and be sure that you fully understand the
instructions for operating the NightFighter Heads-Up
Display System before use. These instructions are
located in the NightFighter Heads-Up Display System
Instruction Manual P/N 10035580.
15 TAL 801 (L) Rev. 5 - 10039500