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RESET DEMAND VALVE (DV)
Press the reset button (25) on the side of the
DV (12) and check that the bypass knob (26)
is turned so that the flat on the bypass knob
aligns with the DV outlet.
Check that the O-Ring (28) on the DV outlet is
clean and in good condition.
CYLINDER PRESSURE/ LEAK
TEST
Slowly open cylinder valve fully and allow 10
seconds for the apparatus to pressurise.
Check that the pressure gauge (14) shows the
cylinder is at least 80% FULL (160 bar for 200
bar cylinders, 240 bar for 300 bar cylinders,
and 300 bar for 379 bar cylinders). Listen for
leaks.
Close the cylinder valve and monitor the
pressure gauge for one minute. If the reading
falls by more than 10 bar during this time, there
is an unacceptable leak.
If the system fails the leak test: close the cylinder
valve, vent air from the system by opening the
DV bypass knob (26). Check all pneumatic
connections and repeat the leak test.
WARNING: DO NOT use apparatus that leaks
excessively. Attach an explanatory note and
return the apparatus for servicing.
DV AND FACEMASK
Check
that
the
facemask
undamaged.
Fit the DV (12) to the facemask and check that
the locking catch (27) engages fully. Twist the
DV (12) gently to confirm that it has.
HOSES
Check all hoses for damage and excess wear.
Flex hoses to reveal any splits, cracks or crazing
(minor crazing is acceptable).
Check couplings for damage and excess wear;
and ensure that they can be opened.
When closed, check that they form a secure
coupling.
Replace damaged or worn hoses.
ADJUST HEIGHT OF WAIST-BELT
MODULE (FX VERSION ONLY)
If required, adjust the height of the waist-belt
module relative to the back-pad:
Using the fingers and thumb, squeeze together
the two halves of the release catch (A).
Slide the waist-belt module to the desired
position (B), taking care to ensure that the
adjustment mechanism is securely located in
one of the three pre-set height settings.
is
clean
and
7
B
A
A
B
PROPAK i / f / fx
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