MSA FireHawk M7 Operating instructions

FireHawk®M7
Carrier and Harness
Assembly
MAINTENANCE AND REPAIR
TAL 8012 (L) Rev. 2 © MSA 2008 Prnt. Spec. 10000005389(I) Mat. 10093081
Doc. 10093081

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TAL 8012 (L) Rev. 2 - 10093081
REPLACEMENT KITS AND PARTS LIST
Replacement Kits
FireHawk M7 Carrier w/Labels (2216 psi/3000 psi)
10090852
10083436 Carrier Assembly
10084688 ID Label
805430 Cylinder Band Label
NIOSH Label
CBRN Label
NFPA Label
10087293 FireHawk M7 Logo Label
FireHawk M7 Carrier w/Labels (4500 psi)
10090853
10083436 Carrier Assembly
10084688 ID Label
805265 Cylinder Band Label
NIOSH Label
CBRN Label
NFPA Label
10087293 FireHawk M7 Logo Label
Chest Strap Replacement Kit
10012167 818380 Left Chest Strap
818379 Right Chest Strap
Strap and Belts
10048173 10048173 Left Shoulder Strap
818381 818381 Right Shoulder Strap
10012167 10012167 Chest Strap
818378 818378 Left Double Pull Strap
818377 818377 Right Double Pull Strap
10083134 10083134 Swiveling Lumbar Pad
10025941 10025941 Left Double Pull Belt
10025942 10025942 Left Single Pull Belt (Not Shown)
818374 818374 Right Pull Belt
10022245 10022245 Belt Mount

AIR MASK
MASK
XXXXXX
XXXXXX
XXXXXX
XXXXXX
2
10
1
4a
4
3
7
56
8
1a
11
912
13
14
TAL 8012 (L) Rev. 2 - 10093081
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FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY

FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY
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FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY
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DISASSEMBLY
Removing the Friction Pad
1. Remove the cylinder.
2. Use a slot head screwdriver to unscrew the Friction
Pad screws.
Note: To ease access to
the screws, remove the
PR14 Mounting Bracket
and pass the screwdriver
through the slot.
Removing the Right Shoulder Strap
1. Remove the M7 Control Module. See M7 Control
Module Repair and Maintenance (P/N 10093089) for
Instructions.
2. Unlace the free end of the pull-strap from the friction
buckle.
3. Remove the shoulder
strap by angling the
Tri-bar slide through
the slot.
Removing the Left Shoulder Strap
1. Disconnect the second
stage regulator from the
intermediate pressure
hose.
a. If present, use an
11/16” wrench to
remove the
ExtendAire manifold.
b. Remove the o-ring
and discard.
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FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY
Table of Contents
Disassembly
Friction Pad ..................................6
Right Shoulder Strap ...........................6
Left Shoulder Strap ............................6
Chest Strap ..................................7
Waist Belts ...................................7
Swiveling Lumbar Pad ..........................7
Reassembly
Swiveling Lumbar Pad ..........................7
Waist Belts ...................................7
Chest Strap ..................................8
Left Shoulder Strap ............................9
Right Shoulder Strap w/Tether ...................9
Friction Pad .................................10

2. Pull the first stage
intermediate pressure
hose through the
shoulder strap.
3. Remove the pull-strap from the friction buckle.
Removing the Chest Strap
1. Unlace the ends of the
chest strap from the
slide buckles.
2. Pull the ends through
through the tunnels in
the chest straps.
Removing Waist Belts
Remove the waist pull-straps from the backplate by
angling the tri-bar through the slots.
Removing the Swiveling Lumbar Pad
1. Remove the Swiveling
Lumbar Pad by angling
the tri-bars through the
backplate slots.
REASSEMBLY
Installing the Swiveling Lumbar Pad
P/N 10083134
1. Position the Swiveling Lumbar Pad behind the
backplate with the curved edge up.
2. Angle the tri-bars
through the slots.
Installing Waist Belts
Left Double Pull Waist Belt: P/N 10025941
Right Double Pull Waist Belt: P/N 818374
1. Angle the tri-bar strap through the slot.
2. Tug on the belt to test the attachment.
3. From back to front,
lace the free end of the
pull-strap through the
friction buckle.
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FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY

4. Pass the strap over the
bar and back through
the buckle.
Installing the Chest Strap
Chest Strap Kit: P/N 10012167
Connect male and female ends of chest strap.
1. Extend the chest
straps.
2. Lay the unconnected
male end under the
right shoulder strap.
3. Lay the unconnected end of the male chest strap
under the left shoulder strap.
4. Pass the end through
the tunnel in the strap.
5. Lace the strap through
the slide buckle.
a. Lace the chest strap
over the bar and
down through the
slide buckle.
b. Pull the chest strap
through.
6. Don the Carrier/Harness Assembly to check chest
strap installation.
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FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY

Installing the Left Shoulder Strap
P/N 10048173
1. Install the shoulder strap by angling the tri-bar through
the slot.
2. Tug on the shoulder strap to test the attachment.
4. Lace the free end of
the pull-strap through
the friction buckle.
a. Twist the strap
clockwise one half
turn.
b. With the fold down,
pass the strap from
back to front through
the buckle.
c. Pass the strap over
the bar and back
through the buckle.
d. Pass the first stage
intermediate-pressure
hose through the
tunnel.
5. Reinstall the
intermediate pressure
hose to the M7
ExtendAire manifold.
a. Install a new o-ring.
b. Use a torque wrench with 11/16” crowfoot to
tighten the connector to 75±5inlbs.
c. Ensure that the dust cover is properly attached.
6. Reconnect the
intermediate-pressure
hose.
a. Use a torque wrench with 11/16” crowfoot to
tighten the connector to 125±5inlbs.
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FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY

Installing the Right Shoulder Strap
Right Shoulder Strap P/N 818381
Tether P/N 10016029
1. Install the shoulder
strap by angling the
tri-bar through the slot.
2. Tug on the shoulder
strap to test the
attachment.
3. Install the tether.
a. Pass the friction
buckle through the
tether’s large
opening.
Note: If using the optional
chest strap install the
tether above the chest
strap.
4. Lace the free end of the pull-strap through the friction
buckle.
a. Fully extend the
shoulder and pull
strap. Make sure the
straps are untwisted.
b. Twist the pull strap
counterclockwise
one-half turn.
c. With the fold down,
pass the strap from
back to front through
the buckle.
d. Pass the strap over
the bar and back
through the buckle.
e. Reinstall the M7 Control Module. (See M7 Control
Module Maintenance and Repair for instructions.)
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FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY

FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY
Installing the Friction Pad
Cylinder Friction Pad Kit P/N 10086667
1. Remove the cylinder.
2. Position the new Friction Pad on the backplate.
Note: Ensure that the
Friction Pad face slopes
toward the center of the
backplate.
3. Insert T-nuts through
the holes.
4. Insert screws.
5. Use a slot head screwdriver to tighten the Friction Pad
screws.
Note: To ease access to
the screws, remove the
PR-14 Mounting Bracket
and pass the screwdriver
through the slot.
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