FIREHAWK SECOND STAGE REGULATOR REASSEMBLY
7. Slide the u-clip through
the bypass body. The
u-clip should slide
through the bypass
body freely.
8. Slide the red bypass
handwheel over the
bypass body. The
handwheel hex lines up
with the handwheel.
9. Ensure that the hose with swivel moves freely.
10. Insert the bypass body
and hose assembly into
the regulator housing
so that the bypass
body tabs are lined up
with the slots in the
bypass insert.
11. Slide the u-clip through
the regulator housing.
The u-clip should slide
through the regulator
housing freely.
REASSEMBLING THE VALVE ASSEMBLY
1. Insert the valve into the regulator housing -- valve fork
slot facing up and away from the bypass port.
2. Push the valve into the regulator housing.
3. Insert the bypass insert
into the bypass port --
slot facing out.
4. Use the bypass body to thread the bypass insert into
the valve. Hand-tighten only.
Note:
If the bypass insert does not thread into valve
assembly easily, the valve assembly is not aligned in the
regulator housing properly. Ensure that the valve assembly
is fully seated in the regulator housing.
5. Insert the hose assembly and bypass body into the
regulator housing.
6. Insert the u-clip into
the regulator housing.
7. Replace the diaphragm.
8. Replace the spring, and regulator cover.
9. Thread the second stage hose to the first stage inter-
mediate pressure hose. Torque to 125 +/- 5 in. lbs.
10. Check the valve assembly calibration. (See Inspection
for Valve Fork section.)
11. Flow test the air mask.
REASSEMBLING THE REGULATOR HOUSING QC
BUTTON AND SLIDE BUTTONS
1. Apply a light film of Christo-Lube to the new o-rings.
2. Install new o-rings on the button’s post.
Note:
With the red bypass handwheel facing you and the
cap facing up, the slide button is to the left and the hous-
ing button is to the right.
10
TAL 113 (L) Rev. 8 - 10051134
