Squirrel CRUX 2 3R User manual

CONTENTS
The System .............................................................................................................................................................1
Closing Loops ..........................................................................................................................................................1
Packing Tips............................................................................................................................................................1
Container Closure....................................................................................................................................................3
Pin Tension For Slider Up Jumping............................................................................................................................3
Magnetic Bridle Keeper ...........................................................................................................................................3
3-RING RISERS........................................................................................................................................................5
USE ..................................................................................................................................................................................................5
ASSEMBLY........................................................................................................................................................................................5
INSPECTION......................................................................................................................................................................................7
MAINTENANCE.................................................................................................................................................................................. 8
Light Buckles...........................................................................................................................................................8
Slider Retention ......................................................................................................................................................9
Rappel Anchor Loops, and Rappel Slings ..................................................................................................................9
Container Shape......................................................................................................................................................9
PC Placement ........................................................................................................................................................10
Chest Strap ...........................................................................................................................................................10
Dyneema Blend Webbing.......................................................................................................................................10
General Inspection and Maintenance......................................................................................................................10
Contact Us.............................................................................................................................................................11
Please read this carefully before doing anything with your new container system
Congratulations on your purchase of a Squirrel CRUX 2 3R (“product”). By purchasing this
product, you acknowledge that engaging in sky-diving, base jumping, parachuting, and
“wingsuiting” is an inherently dangerous activity that requires training, proficiency, and skill.
Use of this product may result in serious injury or death. Do not use this product without
inspecting it and all of its components before each and every use. You acknowledge and
agree that even when properly used, this product may cause serious bodily harm or even
death. You, the purchaser, acknowledge and agree that this product is intended for inherently
dangerous recreational purposes, and you assume all risk, responsibility, and liability
whatsoever from any and all injuries (including death), losses or damages to persons or
property arising from the use of this product sold by Squirrel, LLC to you, the purchaser.
Squirrel is not liable for any special, consequential, incidental, punitive, or indirect
damages or anticipated profits, however caused, in relation to the purchase and use of
this product. In no event shall Squirrel’s total liability to you, as purchaser, or your assigns,
heirs, representatives, and other similarly situated persons, for all damages, losses, and
causes of action exceed the purchase price paid by you, the purchaser, for this product.
This product has been purchased by you “as is” and without warranties of any kind, either
express or implied. To the fullest extent permissible pursuant to applicable law, Squirrel, LLC
disclaims all warranties, express or implied, including, but not limited to, warranties of title
and implied warranties of merchantability and fitness for a particular purpose.
USER MANUAL

1
THE SYSTEM
The CRUX 2 3R is a BASE harness / container system with 3-ring risers. It is imperative that you
take the time to learn the proper assembly, packing, and closing procedures before you use this
system. If you are unsure of any aspect of the assembly or use of this system, stop use immediately
and seek professional instruction. We recommend that you assemble and pack this container
system under the guidance / instruction of a qualified BASE instructor or parachute rigger.
CLOSING LOOPS
Your CRUX 2 3R is shipped with two sets of closing loops.
You must adjust the closing loop length to your parachute
pack volume and packing style.
The CRUX 2 3R top closing loop can be installed in the
floor-plate, or the top flap, depending on jumper preference,
packing method, and/or canopy volume requirements. The
floor-plate loop position will result in a more compact and
lower profile finish. Using the top flap loop installation will allow
for a more traditional folding technique and more volume.
Note: only use Squirrel OEM closing loops for either location.
Floor Plate Loop: For all terminal, tracking, wingsuit, and high-airspeed jumps
To use the floor-plate loop, select one of the longer loops included with your CXUL and install
through the back of the floor plate. Be sure to use the included metal washer and an overhand knot.
Top Flap Loop: Recommended only for subterminal use
To use the top flap loop location, insert the padded plastic wedge into the V-shaped pocket on the
top flap. Select a shorter closing loop, install a washer & knot, and thread through the grommet.
The loop should fit snugly in between the flap and the stiffened wedge. Do not use this closing
method for any jump where the container will be exposed to high amounts of relative wind.
PACKING TIPS
Common techniques used to pack other 2-pin container systems, which use a floor-plate closing
method for the top pin, will work for the CRUX 2 3R as well. Please keep these points in mind:
1. If using the floor plate for the top loop, then we recommend placing your pull-up cord through the top
closing loop before placing your canopy in the container (easier to access once the parachute is covering
the loop).
2. You can place the tailpocket in the packing tray regular or inverse, high or low. However, the placement
shown here has proven to work well with this container.

2
3. You MUST place enough canopy bulk in the upper section of the container to create adequate flap
tension. A significant amount of canopy bulk should be above the top closing loop. Leaving some empty
space at the top of the container will help to keep the top section low-profile and wrinkle-free, but
you must ensure that enough canopy bulk is high enough in the container to make the top edges
of the side flaps lay tightly and securely. Flying at high airspeeds may cause improperly seated or
inadequately tight side flaps to catch air and possibly open the pin cover flap.
4. The second fold should be at the bottom of the container. Leave the parachute bridle attachment point
exposed so the bridle route is clean.
5. When your CRUX 2 3R is closed, the main pin cover flap should be cleanly seated. Check your placement
of the packjob volume. It should be dispersed evenly from corner to corner and match the shape of the
container. If too much volume is directly under or around the top pin, the main pin cover flap may not seat
properly. Your canopy should be folded into a flat and rectangular configuration matching the container.
6. The small tuck tab MUST be placed below the flap as shown.
If the pack-job appears messy and disorganized, consider redoing it with improved technique.
Your CRUX 2 3R must be packed cleanly in order to function properly. If you are unsure, do not
jump it. Contact Squirrel immediately with any questions or concerns.
1 2
3 & 4 (Using Floorplate Loop) 5
6

3
Always double check pin tension, orientation, and closure. There are many ways
to pack a container incorrectly. There is one best practice for packing and closing this
container. The bridle should be routed between the grommets, to the top loop, then the
bottom. The pins should be frowning to the right. In this configuration, with appropriate
closing loop length, there should be consistently low pin tension and minimal tendency to
lock. It is imperative that you close the container as directed. See images on next page.
1. Route the bridle from the attachment point on your parachute between the top and bottom
closing loop from left to right. Make sure that the Velcro tab on the bridle is affixed to itself
and free of any twists or knots. Make sure that both closing loops have the washers installed
properly and that they are adjusted to the correct length to provide the correct pin tension
for the volume of your parachute.
2. Insert the top pin through the top closing loop from left to right, frowning.
3. The bridle must be flat and free of any twists. Locate and align the bottom pin. Insert the
bottom pin through the bottom closing loop from left to right, frowning.
4. Check that both pins are “frowning” from left to right and that the ends of the pins are
pointing to the right.
5. Fold the bridle slack between the top and bottom pin back onto itself along with the closed
Velcro fold. Both of these folds should occur between the top and bottom pins.
6. Hold the Velcro tab and excess bridle between the pins with one hand, while you carefully
close the pin protector flap.
7. Tuck the top of the pin flap and the right side of the pin flap around the left side flap, tightly
covering the pins and bridle.
8. Tuck the excess bridle under the right-side flap and then under the bridle protection flap and
then into the BOC pouch.
CONTAINER CLOSURE
Pin tension for wingsuit, tracking, and terminal airspeed jumps must be high enough to ensure
secure side flaps and secure pin placement against the relative wind that will be acting on your
container. With the pin cover flap open, you should be able to gently move your container around
on the floor by pulling on the bridle just below each pin, without the pin releasing.
Please watch this video: https://vimeo.com/flysquirrel/pintension
PIN TENSION FOR SLIDER UP JUMPING
A small rare-earth magnet is embedded in the riser
cover of your container. It is designed to mate with the
small magnet embedded in the bridle. For hand held
deployments, you may choose to route the bridle as you
normally would from pin to hand (held together with the
PC), matching the magnets together to gently retain the
slack bridle between the bottom pin and your hand.
MAGNETIC BRIDLE KEEPER

4
CONTAINER CLOSURE

5
3-RING RISERS
The CRUX 2 3-ring risers are the result of laboratory load testing and field testing by our R&D team
and Squirrel team jumpers.
Note that the CRUX 2 3-ring risers are “reverse”. When assembled, the rings will be facing the jumper.
Our mission for the CRUX 2 3-ring risers was to create the strongest, most durable, and most
dependable 3-ring risers available. The CRUX 2 3-ring risers have been load tested to more than
20 kN (per riser) in static and dynamic loads, which significantly exceeds industry norms for load
bearing capacity.
It is critical that the risers are properly assembled, used, and maintained. Failure to properly
assemble, use, or maintain the risers will result in increased risk of injury or death.
USE
The Double-Cable Configuration (pg. 6) can be used anytime the need for a cutaway after
landing is unlikely. The double-cable configuration increases load resistance and adds some
protection against accidental cutaway.
The Single-Cable Configuration (pg. 6) may be used where an emergency parachute cutaway
might be necessary (such as in the case of water landings).
The CRUX 2 3-ring riser system is NOT designed for skydiving. The double-cable configuration
must not be used under any circumstances in the skydiving environment.
The CRUX 2 3-ring riser system is NOT designed to be released under load. Do NOT cutaway
your parachute in flight. All parachute equipment has a failure point. Subjecting any risers or any
type of equipment to extreme or unusual loads may result in failure, serious injury, or death.
ASSEMBLY
Cutaway Handle
Ensure the cutaway cable is properly threaded
through the harness, and the handle is seated
firmly in place. See Maintenance for information
on maintaining the cable.
3-Rings
1.Holding the risers parallel to the harness ring, thread the middle ring (on riser) through the large
ring (on harness). Fold the middle ring back toward the riser.
2.Thread the small ring through the middle ring, ONLY.
3.Thread the white loop through the small ring ONLY, then through the riser grommet.
4.Then pass the white loop through the grommet on the cable housing. The flat side of the cable
housing should be against the riser.

6
Cable Configurations
Single-Cable Configuration:
1. There should be 5.5 in. (14 cm) of excess cable extending past the cable housing grommet.
2. Thread the yellow cutaway cable from the main cable housing through the white loop.
3. It should then pass into the correct channel on the riser. NOTE THAT THERE ARE TWO
CHANNELS. The main cutaway cable should be seated only in the lower channel.
Double-Cable Configuration:
1.Assemble the Single-Cable Configuration as above.
2.Then, insert the short cable key from the top (Maillon or parachute side) of the risers.
3.Insert the end of the cable through the white loop.
4.Then tuck the looped-cable-end into the dedicated webbing cover so that it cannot
back out on its own.
CORRECT SINGLE-CABLE CONFIGURATION: Cable is routed to correct housing. Key is not used.
INCORRECT SINGLE-CABLE CONFIGURATION:
Main cutaway cable routed to incorrect housing on riser. INCORRECT SINGLE-CABLE CONFIGURATION:
White loop secured with key only.
CORRECT DOUBLE-CABLE CONFIGURATION:
Cables are routed to correct housings. Key loop is tucked. INCORRECT DOUBLE-CABLE CONFIGURATION:
Main cable routed into key housing

7
INSPECTION
1.Each ring passes through only one other ring.
2.The white loop passes through only the small ring.
3.The white loop passes through the grommet on the end of the cable housing without twisting.
4.The cable-key should be inserted from top down, in its dedicated channel on the riser.
5.The main cutaway cable should be inserted from harness to riser and properly seated in its
dedicated channel on the riser.
6.Nothing passes through the white loop except the yellow cutaway cable, and the cable-key.
7.The 3-Ring release handle is securely fastened to the harness.
ENSURE THAT:
•All 3 rings are aligned in parallel planes. Always ensure that the 3-ring assembly is not inverted
or stuck at an angle. This is particularly important when preparing for unpacked jumps, where
the risers are hanging at an abnormal angle before loading.
•The rings overlap each other and maintain metal-to-metal contact.
•The smallest ring is not pulled tight against the grommet. The white loop should be long enough
to allow it a small amount of movement.
•Your 3-ring risers must match the correct illustrations, exactly. If your riser assembly does not
match the illustrations, it will not function correctly. If you need assistance, contact Squirrel before
use or enlist the help of a rigger who is experienced with this specific CRUX 2 3-ring system.
123
4
7
5
6

LIGHT BUCKLES
The CRUX 2 3R features aluminum plate buckles. Be sure to assemble them correctly, and inspect
them before every jump. Webbing must pass around the middle bar of the small buckle. The entire
small buckle then passes through the hole in the larger buckle. Confirm that the webbing fold back
end is under (below) the large buckle’s outside edge.
Do not twist the leg strap before attaching buckles, and as with every other part of your equipment,
do a thorough pre-jump check to verify proper leg and chest strap assembly and routing.
The stopped ends of the leg straps provide up to 3000 lbs of resistance in the case of some mis-
routings.
See photos for GOOD and BAD routing.
NO
NO
YES
YES
8
MAINTENANCE
All load bearing parachute equipment must be stored properly away from corrosive materials,
solvents, moisture, sunlight, or any other element that may degrade materials.
Inspect 3-ring assembly including the white loop before every jump. It should not be frayed or
worn. All riser rings should be smooth and free of corrosion. All cables should slide without excess
resistance and be free of kinks or damage.
The cutaway cable should be lubricated with a light coating of food-grade silicone. Check the
cutaway cable frequently to ensure proper function.

9
The CRUX 2 3R’s packing tray opens into a fully-flat configuration.
The CRUX 2 3R’s diamond-shaped bottom corners should be
folded inside the container when closed. They can be folded up
against the sidewall, or down against the bottom flap. To avoid
wrinkles or an uneven surface, gently compress the packed rig
to smooth out the container.
CONTAINER SHAPE
Rappel Anchor Loops are now a standard feature on our harnesses. If you choose to use the SQRL
Rappel Slings, attach the sling to the anchor loop as in the photo below (pass the sling through the
anchor loop, then the sling through its own loop, to form a lark’s foot knot on the anchor).
The two slings should be attached with a locking carabiner. You can then use a rappel / belay
device or a Munter Hitch to rappel.
Note that it is recommended to backup all load bearing systems such as with a sling connecting
your chest strap and the locking biner. Never attempt to rappel without proper knowledge,
instruction, or guiding. The anchor loops and rappel slings are for static weight only, do not use
them as climbing harness anchors and never dynamic load these points.
RAPPEL ANCHOR LOOPS, AND RAPPEL SLINGS
The front riser loop has a type 3 webbing anchor inside which can be used with the retention lines
included with your CRUX 2 3R to secure the slider as shown:
1. Insert the retention line into the top hole of webbing anchor with the blue line.
2. Pass the line back through the bottom hole of the webbing anchor.
3. Pull the slider down and pass the stopper knot end of the retention line through the slider grommet.
4. Make a larks head knot on the loop end of the retention line and pass the knot end through the loop.
5. Tighten the larks head and check that the stopper knot is secure.
Please watch this video: https://vimeo.com/flysquirrel/sliderretention
SLIDER RETENTION
1 2 3 4 5

10
The CRUX 2 3R’s webbing is a blend of Dyneema and
polyester. The Dyneema provides a high level of strength while
the polyester provides structure. Dyneema fiber is durable and
more resistant to environmental factors compared to classic
nylon. This webbing has a >31 kN (7000 lbs) breaking
strength when new.
DYNEEMA BLEND WEBBING
GENERAL INSPECTION AND MAINTENANCE
The critical junctions of the CRUX 2 3R are easy to inspect. All major bartacks are made with
contrasting color thread and are easily accessible. Always inspect your CRUX 2 3R before each
use and discontinue use immediately if you see any evidence of wear or damage. Always check
your entire container system, and all equipment, for signs of wear or degradation before every
use. NEVER ASSUME that your equipment is in perfect working condition and always use extreme
caution when trusting any single component of your equipment with your life.
The BOC PC is placed in a manner that the handle
of your PC should not be obstructed by the corner of
your container. When you reach back to take it, the
PC handle should be the first thing you touch.
The CRUX 2 3R’s chest strap is made from 3000
lb. nylon webbing, and the non-slip milled aluminum
buckle is rated to over 14 kN.
PC PLACEMENT
CHEST STRAP

THANK YOU FOR FLYING SQUIRREL!
v.202307 - Check the CRUX 2 3R product page at www.squirrel.ws for the latest PDF version of this manu-
al.
www.squirrel.ws
[email protected]
+1-855-FLY-SQRL
Please consider the following important points:
1. We designed, tested, and built your equipment.
2. Our job is to make sure that you fly as safely as possible, while having the most fun possible.
3. Our job is to help you understand, use, and progress in your gear.
4. Our job is to answer your questions, and we like our job.
For these reasons, we highly recommend that you contact US (SQRL) if you have any questions
about any product that we make. We 100% guarantee that the information you receive from us
will be more relevant, more accurate, and more thorough than anything you can find in facebook
comments, internet forums, or even your DZ gear shop guru. So, again, call us. Email us. Together
with your dealer & the local SQRL pros near you, we’re here to help.
-Matt, Mike, Will, Marty, & All the Team
CONTACT US