TM 10-8415-208-12
(e)
Repeat steps (a) thru (d) until an acceptable air flow is achieved or no further adjustment can be
made.
(8)
Repeat the air flow performance test. If performance is still low, refer to paragraph 3-9. 2. 6 and replace
the regulator.
(9)
If problem persists, replace the EBA. Notify your supervisor.
s.
Close Flow valve (4).
t.
Turn the regulator tester off by depressing on/off switch (7).
u.
Turn off the remote air supply.
v.
Close regulator valve (15).
w.
Open cylinder valve (20) and repeat steps n. through t. to test the cylinder air supply.
x.
Close cylinder valve (20) and regulator valve (15).
y.
Check the regulator for internal leaks as follows:
(1)
Turn regulator tester on by depressing the on/off switch (7).
(2)
Turn on remote air supply (85 to 90 PSIG).
(3)
Open cylinder valve (20).
(4)
Open regulator valve (15).
(5)
Slowly open flow valve (4) until flow gauge (1) reads 120 to 150 liters per minute in accordance with the
flow calibration chart (8) located on inside cover of regulator tester.
(6)
Observe cylinder pressure gauge (21) for 10 seconds. If the cylinder pressure gauge (21) drops, there are
internal regulator leaks. Refer to paragraph 3-9. 2. 6 to replace the regulator.
(7)
Turn regulator tester off by depressing on/off switch (7).
(8)
Close cylinder valve (20) and regulator valve (15).
(9)
Turn off remote air supply.
z. Unplug electrical connection (5) from the electrical outlet.
NOTE
Ensure the cylinder valve and the regulator valve are closed and that the system is depressurized.
aa.
Disconnect remote air supply line (13) from tether line connection (14).
ab.
Remove breathing tube (10) from inlet connection (6).
ac.
Connect face piece (12) to breathing tube (10).
ad.
Disconnect breathing tube (10) from EBA regulator outlet (11).
Change 3
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