the Product Manual

 Fulcrum Concepts LLC.
1776 Patriot Way, Mattaponi, VA 23110
1(804) 798-1017
GAU-19 BREECH BOLT ASSEMBLY
FIXTURE
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GAU-19 BREECH BOLT ASSEMBLY FIXTURE
Easy to use fixture simplifies the reassembly of the GAU-19 Breech
Bolt Assembly Fixture as well as eliminates the safety hazard
associated with reassembling the breech bolt without the proper tools.
Compact, lightweight design allows users to securely lock the bolt in
place and compress the firing spring while keeping both hands free to
insert the retaining pin and complete reassembly.
PRODUCT WARRANTY INFORMATION
Fulcrum Concepts LLC (FCLLC) warrants to the Original Purchaser of
the FCLLC product (herein called the “Unit”) that such Unit, and
all parts thereof, will be free from defects in material and
workmanship under normal use and service for a period of one (1) year
from the date of shipment of the Unit to the Original Purchaser. During
this one year warranty period, FCLLC will repair or replace any
defective part or portion returned to FCLLC by the Original
Purchaser which FCLLC determines was defective due to faulty
material or workmanship.
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CAUTIONS AND WARNINGS DISCLAIMER
Failure to follow the breech bolt reassembly instructions in the
General Dynamics GAU-19 maintenance manual and the
following instructions could result in weapon system damage
and/or damage to equipment.
Always use eye protection
Take proper caution when inserting the straight pin into the body
of the breech bolt carrier, the screwdriver can slip causing injury
and/or damage to equipment. Use light pressure, do not attempt
to force the pin. Pin damage due to negligence will not be covered
by the product warranty
Failure to properly align the push pin before first use can damage
the device and/or the breech bolt
Always use the device on a flat and stable surface
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Item
Description
Part Number
Source
Contact info
1
Base
000015DA-101
FCLLC
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804.785.1063
2
Press fit ball
plunger
CL-3-PBP-2
Carr Lane
www.carrlane.com
3
Pin
97395A708
McMasterCarr
www.mcmaster.com
4
Latch
000015DA-103
FCLLC
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804.785.1063
5
Push Pin
000015DA-105
FCLLC
www.fulcrumconceptsllc.com
804.785.1063
6
Nut, Jam
MS35649-2254
McMasterCarr
www.mcmaster.com
7
Clamp, push
pull
CL-253
Knu Vise
www.knuvise.com
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Directions for use
1. Assemble the GAU-19 Breech bolt as per the GD manual. Beginning
with task 4-7.6.1 (page 152) through step 4-7.6.6.7 step b (page 154)
2. Compress firing spring with the breech bolt cam follower enough to
align the pinholes of the cam follower and breech bolt.
3. Insert the tapered portion of the straight pin through the cam follower
and breech bolt until the pin makes contact with the firing spring.
Warning
Failure to align the pinholes of the cam follower and breech bolt prior to
inserting the assembly into the fixture will make reassembly of the
breech bolt impossible.
Note
Ensure the smooth side of the straight pin is facing towards the
firing spring.
4. Release tension on the cam follower, pin should be placed far enough
into the cam follower to hold the bolt assembly together.
5. Ensure bolt is not “cocked”.
6. Open the latch to the Breech Bolt tool and place the push pull clamp in
the open position.
7. Insert the breech bolt into bolt tool by sliding the track-ways of the
breech bolt onto the rails of the bolt tool. Insert cam follower end first
with the exposed pin on the top.
8. Close latch of the bolt tool to secure the breech bolt into place.
9. **This step should only be required for first use**Loosen the jam
nut holding the pushpin in place. Slowly close the push/pull clamp
while guiding the pushpin into the opening of the cam follower by hand.
Once the pin is in the proper position to make contact with the firing
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spring, lock the pushpin into position by securing the pin with a 1/4”
box end wrench and tightening the jam nut with a 7/16” box end
wrench.
10.
Fully compress and lock the push/pull clamp into the closed
position.
11.
With a screwdriver, push the straight pin into the breech bolt until
the pin makes slight contact with the pushpin.
Note
The straight pin cannot be pushed all the way through the breech
bolt with the pushpin compressing the firing spring.
12.
Unlock and move the push/ pull clamp to the open position.
13.
Push the straight pin the rest of the way through the breech bolt
until the head of the pin is flush with the body of the bolt carrier.
14.
Rotate the straight pin 180 degrees to lock the pin detent onto the
firing spring. An audible “click” should be heard.
15.
Open latch and remove breech bolt from the bolt tool.
Any questions or concerns please contact Fulcrum Concepts LLC
directly at:
Fulcrum Concepts LLC
1776 Patriot Way
Mattaponi, VA 23110
1 (804) 785-1063
www.fulcrumconceptsllc.com
www.fulcrumconceptsllc.com