FireHawk® M7 Carrier and Harness Assembly

FireHawk® M7 Carrier and Harness Assembly
FireHawk M7
Carrier and Harness
Assembly
®
MAINTENANCE AND REPAIR
TAL 909 (L) Rev. 3
© MSA 2009
Prnt. Spec. 10000005389(I) Mat. 10093081
Doc. 10093081
REPLACEMENT KITS AND PARTS LIST
10102886
10102861
TAL 909 (L) Rev. 3 - 10093081
10048173
10102889
10048173
10102889
10102860
10102859
10102860
10102859
10102858
10102838
10102858
10102838
2
FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY
2
3
TAL 909 (L) Rev. 3 - 10093081
FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY
10109434
(3 Req’d)
Aluminum Screws (3 Req’d)
15
16
17
TAL 909 (L) Rev. 3 - 10093081
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FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY
5
TAL 8012 (L) Rev. 2 - 10093081
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
DISASSEMBLY
Removing the Left Shoulder Strap
Removing the Friction Pad
1. Remove the cylinder.
2. Use a slot head screwdriver to unscrew the Friction
Pad screws.
1. Disconnect the second
stage regulator from the
intermediate pressure
hose.
Note: To ease access to
the screws, remove the
PR14 Mounting Bracket
and pass the screwdriver
through the slot.
a. If present, use an
11/16” wrench to
remove the
ExtendAire manifold.
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.
TAL 909 (L) Rev. 3 - 10093081
b. Remove the o-ring
and discard.
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FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY
Removing the Swiveling Lumbar Pad
2. Pull the first stage
intermediate pressure
hose through the
shoulder strap.
1. Remove the Swiveling
Lumbar Pad by angling
the tri-bars through the
backplate slots.
3. Remove the pull-strap from the friction buckle.
Removing the Chest Strap
REASSEMBLY
Installing the Swiveling Lumbar Pad
P/N 10083134
1. Position the Swiveling Lumbar Pad behind the
backplate with the curved edge up.
1. Unlace the ends of the
chest strap from the
slide buckles.
2. Angle the tri-bars
through the slots.
2. Pull the ends through
through the tunnels in
the chest straps.
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.
Removing Waist Belts
Remove the waist pull-straps from the backplate by
angling the tri-bar through the slots.
3. From back to front,
lace the free end of the
pull-strap through the
friction buckle.
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TAL 909 (L) Rev. 3 - 10093081
FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY
4. Pass the strap over the
bar and back through
the buckle.
5. Lace the strap through
the slide buckle.
Installing the Chest Strap
Chest Strap Kit: P/N 10012167
Connect male and female ends of chest strap.
a. Lace the chest strap
over the bar and
down through the
slide buckle.
1. Extend the chest
straps.
b. Pull the chest strap
through.
2. Lay the unconnected
male end under the
right shoulder strap.
6. Don the Carrier/Harness Assembly to check chest
strap installation.
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.
TAL 909 (L) Rev. 3 - 10093081
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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.
d. Pass the first stage
intermediate-pressure
hose through the
tunnel.
4. Lace the free end of
the pull-strap through
the friction buckle.
5. Reinstall the
intermediate pressure
hose to the M7
ExtendAire manifold.
a. Twist the strap
clockwise one half
turn.
a. Install a new o-ring.
b. Use a torque wrench with 11/16” crowfoot to
tighten the connector to 75 ± 5 in lbs.
c. Ensure that the dust cover is properly attached.
6. Reconnect the
intermediate-pressure
hose.
b. With the fold down,
pass the strap from
back to front through
the buckle.
a. Use a torque wrench with 11/16” crowfoot to
tighten the connector to 125 ± 5 in lbs.
c. Pass the strap over
the bar and back
through the buckle.
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TAL 909 (L) Rev. 3 - 10093081
FIREHAWK M7 CARRIER AND HARNESS ASSEMBLY
4. Lace the free end of the pull-strap through the friction
buckle.
Installing the Right Shoulder Strap
Right Shoulder Strap
P/N 818381
Tether
P/N 10016029
a. Fully extend the
shoulder and pull
strap. Make sure the
straps are untwisted.
1. Install the shoulder
strap by angling the
tri-bar through the slot.
b. Twist the pull strap
counterclockwise
one-half turn.
2. Tug on the shoulder
strap to test the
attachment.
3. Install the tether.
c. With the fold down,
pass the strap from
back to front through
the buckle.
a. Pass the friction
buckle through the
tether’s large
opening.
d. Pass the strap over
the bar and back
through the buckle.
Note: If using the optional
chest strap install the
tether above the chest
strap.
e. Reinstall the M7 Control Module. (See M7 Control
Module Maintenance and Repair for instructions.)
TAL 909 (L) Rev. 3 - 10093081
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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.
4. Insert screws.
Note: Ensure that the
Friction Pad face slopes
toward the center of the
backplate.
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.
3. Insert T-nuts through
the holes.
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TAL 909 (L) Rev. 3 - 10093081
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