Yakima BigStack User manual
BigStack
IMPORTANT WARNING
IT IS CRITICAL THAT ALL YAKIMA RACKS AND ACCESSORIES BE PROPERLY AND SECURELY ATTACHED TO YOUR VEHICLE. IMPROPER
ATTACHMENT COULD RESULT IN AN AUTOMOBILE ACCIDENT, AND COULD CAUSE SERIOUS BODILY INJURY OR DEATH TO YOU OR TO
OTHERS. YOU ARE RESPONSIBLE FOR SECURING THE RACKS AND ACCESSORIES TO YOUR CAR, CHECKING THE ATTACHMENTS PRIOR
TO USE, AND PERIODICALLY INSPECTING THE PRODUCTS FOR ADJUSTMENT, WEAR, AND DAMAGE. THEREFORE, YOU MUST READ
AND UNDERSTAND ALL OF THE INSTRUCTIONS AND CAUTIONS SUPPLIED WITH YOUR YAKIMA PRODUCT PRIOR TO INSTALLATION
OR USE. IF YOU DO NOT UNDERSTAND ALL OF THE INSTRUCTIONS AND CAUTIONS, OR IF YOU HAVE NO MECHANICAL EXPERIENCE
AND ARE NOT THOROUGHLY FAMILIAR WITH THE INSTALLATION PROCEDURES, YOU SHOULD HAVE THE PRODUCT INSTALLED BY A
PROFESSIONAL INSTALLER.
BIGSTACK (2X)
ADJUSTMENT
KNOB (2X)
HEAVY DUTY STRAP (2X)
BAIL (2X)
Steel Hook (2X)
Plain Strap (2X)
Plastic Tube (2X)
Buckle
Strap (2X)
T-BOLT (2X)
PAD (4X)
BOW STERN TIE DOWN
MiniMuM Crossbar spread 24”
For FaCtory raCks: Check fitlist notesfor your vehicle’s crossbar spread.
Install both pads.
prepare For installation
Rotate the BigStack to its upright
position. It will lock into place.
NOTE: Use the red release button on the
base when you wish to fold the mast down.
Insert t-bolt through BigStack
base and adjustment knob.
Screw adjustment knob
onto t-bolt. Turn knob
three full turns.
ROUND
BAR
ONLY
Snap bail to base,
around crossbar.
Top notch for
Round Bars.
install bigstaCk on Crossbars
Distance from
the BigStack to
the tower should
equal the width
of your kayak (or
kayaks) on edge.
Determine position of BigStack
on the crossbar before
proceeding to step 5.
90°
NOW COMPLETELY
TIGHTEN THE BIGSTACK
USING FIRM PRESSURE.
INSTALL SECOND BIGSTACK
Install BigStacks so that
the lock housings face
same side of vehicle.
Repeat Steps 1 through 7 to
install second BigStack.
FACTORY
BAR
ONLY
Insert t-bolt
through bail. Rotate t-bolt.
Choose best position
for most secure grip.
SQUARE
BAR
ONLY
Upper notch for
Square Bars.
Snap bail to base,
around crossbar.
Snap bail to base,
around crossbar.
Install BigStacks so that
they are offset and fold
toward each other.
4
1 2 3
Loop strap
under crossbar
at least once.
Loop strap
inboard of
crossbar tower.
Distance of BigStack
from crossbar tower
is exactly the width of
kayak(s) on edge.
Follow these Four rules when strapping kayak(s):
get ready to load your boat(s)
LOAd The bOAT— TIe IT dOWN WITh sTRAPs
to load strap with
bigstaCk in down position:
Pass strap
through hole.
Raise mast
to upright
position.
Continue tying
boats as shown
on following
pages.
CAUTION: BigStacks may require re-
positioning to avoid vehicle contact.
CAUTION: BigStacks may need to be
adjusted to be offset to allow for folding
masts down when not in use.
Additional straps may be required for more than 2 kayaks.
NOT RECOMMENDED
Always tie down the bow and stern. See step 12
for proper bow stern tie down procedure.
• Insert end of strap
into buckle as
shown.
TIGHTEN STRAPS:
• To tighten straps,
hold and pull.
• Secure extra strap.
ConneCt
and tighten
• Hook the strap at the
top of the BigStack.
• Slide buckle up so
that it hangs at top
edge of boat.
ADDED SECURITY:
• Pass strap inboard under
crossbar.
• Pass strap under boat
around base of BigStack.
• Pass under crossbar again
and attach to buckle.
NOTE: Straps are to be inside of towers. If straps
are to be outside of tower due to tower/bar
position, use STRAP CAPS (Yakima part number
8005015) to prevent straps from sliding off the end
of the crossbars.
CONTINue TO LOAd The bOAT— TIe IT dOWN WITh sTRAPs
Strap outside
of tower.
Use Strap Cap.
Yakima part number 8005015
(sold separately).
LOOP STRAP AROUND
BIGSTACK POST.
Cross lines and set
aside.
LOAD BOAT.
• Bring straps up and over boat.
• Hang to the side.
to load strap with
bigstaCk in upright
position:
Attach buckle strap to boat.
Attach strap to grab handle or
rescue bar and pull tight.
Attach hook to plain
strap loop.
Slide plastic tube to protect vehicle
at contact point.
NOTE: Twisting the strap will
help reduce wind vibration.
Insert end of plain strap
into buckle.
(press tab)
Adjust strap tension by
pulling plain end.
• Apply even
pressure to front
and rear straps.
• Bind up and tie off
any excess strap.
Hook the strap to a metal
surface on the bumper, tow
loop, or frame hole using
hook.
Failure to secure front and rear of long loads to ends of vehicle
can result in property damage, personal injury, or death.
bow stern tie down attaChMent
Lines on adjustment knob and BigStack
base must be aligned to lock.
Align
install sks loCks
aCCording to loCk
instruCtions
(Purchased separately).
Table of contents
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