monster tower MT2 Quick start guide

Reference 13August2014 Pg 1 of 12 Copyright 2002-2009, Monster Tower, Inc.
Installation Instructions
And Owners Manual
MT2
Monster Tower, Inc.
1704 Henry G Lane St
Maryville, TN 37801
Phone: 877-77-Tower
Fax: [phone]
www.MonsterTower.com
[email protected]
Reference 13August2014
It is critical to lubricate bolt threads with included Anti-Seize
before installing Nylock Nuts to prevent the precision stainless steel
hardware from galling and locking, even if you are test-fitting parts together
before installation.
Leave Legs and Top Section protected with bubble wrap sleeves, removing
only the ends as needed, to protect the boat and tower during installation.
THANK YOU FOR YOUR BUSINESS. IF YOU ARE NOT COMPLETELY SATISFIED
IN ANY WAY WITH YOUR NEW MT2, PLEASE CONTACT US IMMEDIATELY. Our
entire purpose as a company is to create great products at affordable prices that
our customers love.
IMPORTANT
Please take a few minutes to read the installation instructions and become
familiar with the MT2 parts and installation before beginning to ensure a high
quality, trouble free installation. If you have any questions during your
installation give us a call at 877-77-Tower or e-mail [email protected]om

Reference 13August2014 Pg 2 of 12 Copyright 2002-2009, Monster Tower, Inc.
IMPORTANT NOTES ON INSTALLING AND USING
YOUR NEW MT2
Read the entire instruction manual before beginning
Always apply a thin film of Anti-Seize to Threads before putting a nut on or
the hardware can lock up. This is normal for Stainless Steel hardware and
the Anti-Seize eliminates the problem.
Do not use nut drivers to run bolts. Always turn by hand to prevent the
bolts from heating up.
Strengthen the mounting areas of the bases with marine grade plywood or
additional fiberglass if the fiberglass is less than 3/8” thick.
Torque M12 Nylock Nuts to 65 ft-lbs , the M12 x 35 Bolt to 30 ft-lbs, and the
M10 x 40 Nylock Nuts to 50 ft-lbs.
Re-torque all hardware (especially M12 Nylock nuts) after each of the first
few uses and then check regularly.
Note that after drilling the holes in the mating swivels, the tower is
permanently set to that rear leg mounting width and can not be moved to
another boat or area unless it has the same rear leg mounting width.
The tower is silent by design. If you hear any rattling or noise check all
hardware for tightness, especially the Heim joint jam nuts and set screws
in the rear swivel collar. Call us at 877-77-Tower if you continue to hear any
rattling or noise before using the tower as this means something is not
installed correctly.
Leave protective bubble wrap sleeves on the legs and top section until the
drilling steps on page 10. This will protect your boat and the tower during
installation. Only remove the areas needed for installation.
Visit the support information at www.MonsterTower.com for additional
information including details on customer installations.
Call us at 877-77-Tower if you have any questions or concerns during the
installation.
Read the entire instruction manual before beginning

Reference 13August2014 Pg 3 of 12 Copyright 2002-2009, Monster Tower, Inc.
Getting to Know your MT2
Tower Parts & Assembly Diagrams
The MT2 is an innovative design in the Wakeboard Tower market that uses many
common parts and design elements that make it affordable and easy to install. There
are three main components of the design as shown in the Assembly Diagram: front
legs, rear legs and the top section. The front legs are identical, and the rear legs are
identical.
The Top Section Assembly shows how the fixed leg swivel at the top of each of the legs
mate to swivels on the top section. These swivels allow the front or rear legs to move
closer together or farther apart to adjust to different boat widths. The back leg swivels
on the top section also rotate in the swivel collar; allowing the front and rear legs to
move closer together or farther apart to adjust to different mounting locations on the

Reference 13August2014 Pg 4 of 12 Copyright 2002-2009, Monster Tower, Inc.
side of the boat. The unique Base Assembly of the MT2 includes: a base fastened to
the boat, and a base swivel that allows for mounting the top, outside, or angle of the
side of the boat. The Heim joint has three purposes. First, it allows the base to mount if
your boat has a slight angle at the mounting areas. Second, it allows the legs to rotate
so the tower can fold down for storage. Third, the Heim joint prevents any lateral (side
to side) movement of the tower from causing stress to the boat. You are now an expert
on the Parts of the Monster Tower and we will use the terminology of the Parts List
throughout this document. Note that Parts refer to components of the tower and
Items refer to hardware, tools and accessories.
MT2 Hardware List
Item
Metric Dimension
Equivalent
Inch Dimensions
Connection
Qty
1
M8 x 60 SHCS / Washer / Nylock
5/16-18 x 2"
Base to boat
8
2
M12 x 85 SHCS / Washer / Nylock
15/32 x 3-1/2"
Base to base swivel
4
3
M12 x 35 SHCS
15/32 x 1-3/8"
Attach Heim joint to base swivel
4
4
M12 Flat Hex Jam Nut
1/2" Hex Jam Nut
Jam nut for Heim joint (installed)
4
5
M10 x 55 SHCS / Washers / Nylock
13/32" x 2 1/8”
Rear Leg swivels to top section
2
6
M12 x 12 Set Screw (preinstalled)
13/32" x 1/2"
Lock rear swivel in collar
4
7
M8 x 55HCS / Washers / Nylock
3/8” x 2 1/8”
Rear Swivel / Leg Anchors
4
8
M12 x 35 Quick Release Knob
15/32 x 1-3/8
Front Heim joints to front base assemblies
2
9
M12 x 106 Quick Release Assembly
Front leg to Front Swivel
2
10
2-1/2” Teflon Fender Washer
Front Legs & Top Section Swivel
2
11
M6 Head Allen Wrench
For M10 Set Screws
Supplied tool
1
12
M8 Head Allen Wrench
For M8 Bolts
Supplied tool
1
13
M10 Head Allen Wrench
For M12 Bolts
Supplied tool
1
14
8mm Drill bit
For Anchor Bolt Holes
1
15
Spare Parts
#1(x2),#2,#5,#7
16
Foil Packet of Anti-Seize Lubricant
This is critical to use on all bolt threads to prevent galling
SHCS - Socket Head Cap Screw (Bolt)
Nylock - Nut with built in locking ring
The above hardware and tools are included with your MT2 and are referenced to in the
installation manual by their item number.
Items and tools needed for Installation
The following items are needed for the installation of the tower and are not
supplied.
Required
Optional
Reversible Drill & 1/8”, 1/4”, 5/16”, 3/8” & 1/2" Drill Bits
Adjustable wrench or 13mm & 19mm metric sockets
Torque Wrench (no pneumatic wrenchs)
Any general purpose grease for Front Leg Swivels
Masking Tape, Tape Measure & Pencil
Friend to help hold & hand things
Safety Glasses (always use when drilling fiberglass or metal)
Vacuum for drill shavings
Throw tarps (to cover boat)
1/4” or 3/8” PT Plywood
Silicone Sealant
Loctite removable threadlock
(In place of anti-seize)

Reference 13August2014 Pg 5 of 12 Copyright 2002-2009, Monster Tower, Inc.
Layout and Planning
During installation, you should protect the tower by doing all the layout of the tower on a
tarp, blanket, or carpet and leave as much of the bubble wrap sleeves on the legs and
top section as possible. Use masking tape to protect your deck from scratches as you
determine the location of the bases. Apply included Anti-Seize to all bolt threads to
prevent galling and locking of the precision stainless steel hardware.
The first step when installing the tower is to understand where you want the tower to fold
down to in the boat. This will determine where the rear bases will attach. If your tower is
ever going to be folded down, this is more important than where the tow point is located.
You will want the top section of the tower to rest on your floor, rear seat, or sun pad
when folded down. To ensure the tower lays down the way you want, you need to lay it
out before installing the bases.
To begin the layout process, attach the rear legs (part 5) to the top section (part 1) using
hardware Item 5 WITH ANTI-SEIZE on the outside of the threads. The rear legs should
radius towards the front of the boat. Tighten the setscrews in the top section to hold it at
about 30 degrees from vertical as shown below. DO NOT loosen these set screws when
folding the tower down.
NOTE –If you plan to purchase a Bimini, be cautious of where you mount the tower. If you mount the
tower too far back, the driver may not be covered by shade.
About 30o
Approximate Boat Width
Before moving the rear legs and top section to
the boat, pre-assemble the leg ends as shown:
1) Attach the Heim joint to the Base Assembly as
shown in the Base Assembly (Rear) View. Make
sure the o-ring is on the bolt between the Heim
joint and base swivel. (The o-ring aligns the Heim
joint to the base swivel and is not required after
installation.)
Now prepare your boat by putting masking tape on the hull covering the general
locations you will mount the rear bases. You can also put towels or tarps on your deck
for added protection. Customer photos on our website can also be a help for where to
mount the tower.

Reference 13August2014 Pg 6 of 12 Copyright 2002-2009, Monster Tower, Inc.
The following picture depicts the initial layout process to determine the proper location of
the rear bases. In many installations, the base will mount to the side of the boat and or
on a curved surface, instead of a flat horizontal surface. If you plan to add a bimini,
locate the rear bases as close to the back of the drivers seat as possible.
IMPORTANT: The Heim joint should always be positioned to the back of the base
as shown above for the rear legs, and to the front of the base for the front legs
(not shown) to ensure the base does not contact the legs when the tower is folded
for storage. The base swivel can be mounted with the M12x35 bolt (item 3) either
towards the inside of the boat or on the outside. For easiest access, we recommend
mounting the base swivel with the bolt towards the outside. With the tower in this initial
position, you can easily move it so the top section rests at a good location when folded,
and see if the bases will best mount on the top, side or an angle on each side of the
boat. You may want to try a few different mounting spots to make sure you have the best
location for the tower when folded down.
It is important to look under where the base will mount to make sure there are no wires
or other obstructions, and to make sure there is a flat surface for the base plate. Many
boats have foam flotation under the deck that must be removed to mount the backing
plate. Also, avoid stringers and wiring channels when determining base locations.
Mark the base locations on the tape and double check the distance from the back of
each base to the rear corner of the boat (or other reference point) to make sure they are
positioned in the same location on each side of the boat.

Reference 13August2014 Pg 7 of 12 Copyright 2002-2009, Monster Tower, Inc.
The front bases are located 75” to 100” apart from the rear bases. The optimal range is
from 75” to 85”. A spread larger than 85” will lower the towpoint some. The following
shows the side view with the tower at ideal front to rear leg-mounting distances.
Measure from the rear base to the approximate location where the front base will be
mounted to confirm they will be in the acceptable range before continuing.
Tighten the bolts (Item 5) at the top of the rear legs and the setscrews (Item 6) in the top
section to make it easier to handle the tower during the final steps.
An optional step at this point is to attach the front legs to the top section to make sure
they do not interfere with the windshield opening. To attach the front legs, assemble a
base to each of the front legs (base assembly (front) view) and attach the front legs to
the top section. Do this using item 8 to attach the Heim joint to the base, and Item 9 to
attach the leg swivel (part 8) to the front top section swivel (part 12). You can then
determine the final location of all four bases by placing the tower into its final position.
This will be easier if you can hang the tower from a tree, rafter or have a few friends help
you hold the tower in place.
Mark the location of the front bases and measure from a front base to a reference
location on the boat, as well as from the front base to the rear base to make sure they
are positioned the same on both sides of the boat.
You are now ready to attach the rear bases to the boat, so you will need to detach them
from the legs and take the base assemblies apart. If you have the front legs attached to
the top section you will want to detach them as well.
Attaching the bases to the deck of the boat
Take a few minutes to double check the dimensions between the base locations and
several reference points on your boat to make sure they are in the same locations on
each side (measure twice, drill once). Check underneath the deck to make sure there
are no wires or obstructions as well as good places for the backing plate. For each rear
base, mark the location to drill the two holes through the deck as in the following picture.
The masking tape makes it easy to accurately mark the holes. To make drilling easier
we recommend center punching the marks so the drill bit does not wander when drilling.

Reference 13August2014 Pg 8 of 12 Copyright 2002-2009, Monster Tower, Inc.
Understand the following procedures before drilling to ensure a clean hole through the
deck. Boats have a very hard gelcoat surface with fiberglass under the gelcoat as
shown below.
Gelcoat
The gelcoat is a very thin layer approximately 1/16th” thick and the fiberglass below it is
normally about 3/8” thick. IMPORTANT: If the fiberglass below the gelcoat is less than
3/8” thick, you need to add fiberglass cloth and/or marine treated plywood to build up
the largest area available to at least 3/8” thick. You need to check all mounting points as
the fiberglass thickness may vary on the boat.
You MUST run the drill in reverse while drilling the holes or the gelcoat will chip, as it is
extremely brittle. Remember to run the drill in reverse for the entire hole.
This is also a great time to have someone with a vacuum to remove the fiberglass as
you are drilling. To drill the holes use the following procedures:
1) Begin with a 1/8” bit and run the drill in reverse until you are through the
fiberglass.
2) Repeat the same step as above with the 5/16” bit running in reverse.
3) Finish the hole by putting a slight angle (chamfer) on the edge of the gelcoat
turning the ½” drill bit by hand (without the drill) as shown on the right side in the
above diagram to further protect the boat.
4) Using the backing plate, double check the location of the second hole for each
base and then drill the second hole using steps 1-3.
5) Confirm the two Item 1 bolts will go through the backing plate and the two holes
without binding. If needed, drill the holes to 3/8” for clearance.
6) Optionally, you can use a small piece of sand paper to radius the edge of the
chamfer also to remove the slight edge.
Next, install the rear bases (part 2), Monster Paws (part 18) - hollow section towards
boat, and backing plates (part 1) with Item 1 hardware as shown on page 9. If you are
adding wood to the underside of your deck, the wood will go between the deck and the
Monster Paw under the deck of the boat. Remember to apply Anti-Seize to the entire
length of the M8 bolts. Tighten these by hand; do not use a drill or pneumatic / air driver.
There is not a specific torque specification since each boat is different. Tighten the M8

Reference 13August2014 Pg 9 of 12 Copyright 2002-2009, Monster Tower, Inc.
bolts until you begin to see the Paw being compressed. Check the base to make sure it
is tight and if needed turn another ¼ turn. Repeat until the base is rigid. Note: You can
optionally add non-adhesive caulk or sealant between the top of the boat and the
Monster Paw to ensure a waterproof seal.
Rebuild the base assembly onto the mounted base as you previously had it for the initial
setup (Base Assembly (Rear) view).
Attach the rear legs and top section setup to the rear bases with Item 3 (M12 x 35 bolt).
Base
Front of Boat
Rubber Base Pads
Boat Deck
Backing Plate
The next step is to determine the final location for the front mounts.
Attach the front leg swivels (part 8) to the front swivels (part 11) using Item 9 of the
hardware list. You may include the Item 11 Teflon washers between the mating swivels
of the front legs if you would like to, but they are not required.
All bolts need to be at least hand tight in the next step or the tower will be hard to rotate.
Rotate the tower into the up position and move the front legs around to determine the
desired location of the front bases. You may have already done this during the initial
setup that was optional on page 7. Double check the location of
the front bases, and then follow the same drilling and installation
procedure used to mount the rear bases to finish the front base
installation. Making sure the bases are facing the correct
direction as shown in the Base Assembly (Front) view. Use Item
8 instead of the M12 x 35 bolts used on the rear legs, placing
the lanyard washer onto the M12x85 bolt (Item 2) on the outside
of the base as shown here. The tower installation is almost
complete and the last step provides the final adjustments to
ensure a stiff tower that is custom fit to your boat.
IMPORTANT - Final Adjustments and Locking
The last step is to center the tower on the boat and lock everything securely into place
to ensure the tower is stiff and silent. IMPORTANT –You must center the tower on the
boat as shown below. Do this by measuring from the base on one side to the rear swivel
on the other side as shown on page 10. Check both sides until the measurements are

Reference 13August2014 Pg 10 of 12 Copyright 2002-2009, Monster Tower, Inc.
within ¼” in both directions and then tighten the setscrews (Item 6) in the Part 9 Rear
Swivel Collar and tighten all M10 bolts in the top section to 50 ft-lbs.
The last step is to install Item 7 to lock together the Rear Top Section Swivel and Rear
Leg Swivel. This maximizes the side-to-side (lateral) stiffness of the tower. Double
check that the tower is centered as above before drilling. Once holes have been
drilled, there is no adjusting the tower.Use the included 5/16” (8mm) bit to drill
through the pilot hole and all the way through the other side of the mating swivel. Use a
vacuum to remove any metal shavings during drilling and wear safety glasses.
Drilling the mating swivels will be faster using the following steps:
1) Begin with the 8mm drill bit, drilling through the pilot hole and starting the hole in
the mating swivel.
2) Switch your drill bit to a smaller size (3/16” or ¼”) and drill partially through the
tower, making sure to stay centered in the pilot hole.
3) Switch your drill bit back to the 8mm bit and drill through the smaller hole.
4) Continue switching between drill bits until you have drilled completely through the
swivels.
Insert Item 7 through the hole, and tighten to 30 ft-lbs. At this point double check that
the tower is centered before drilling and installing the next bolt. Repeat the anchor bolt
installation on the other rear leg of the tower. Drill and install the second anchor bolt on
each of the mating swivels to complete the installation of the four anchor bolts. The
tower is now centered and locked into position. All four anchor bolts MUST be installed.
The final step is to double check all fasteners, making sure they are tight, especially the
top section set screws and jam nuts tightened against the leg rod end support. The
tower is now ready for use. The MT2 IS ABSOLUTELY SILENT when installed
Rear Swivel
pilot hole (front
and back)
Drill all the way through the
mating swivels until you can
see through the tower.
One anchor bolt (item 7)
installed and second
hole drilled.

Reference 13August2014 Pg 11 of 12 Copyright 2002-2009, Monster Tower, Inc.
correctly. Shake the tower, and if there is any noise or side to side movement, check all
the hardware and make sure it is tight. If you hear any noise or rattling at any time,
something is wrong, please correct it or call us before using the tower.
Thank you again for your business and if we can be of assistance in any way please call
us at 877-77-Tower or email us at Suppo[email protected]
Remember to send us a few pictures of your boat with the MT2 installed
AND YOUR SHIRT SIZE for a free Monster Tower T-Shirt. International customers will need to
cover the shipping cost. Email pictures to [e-mail]
Using your MT2 –Operating Instructions
The MT2 folds down flat to fit under your boat cover. The tower is much easier to fold if you have a friend
to help, but can be done by one person. To fold the tower down remove the Quick Release Assembly
(items 9) from the top of the front legs. The front legs rotate to the front of the boat and rest in the bow.
You can also remove the front legs completely by undoing the quick release bolts that connect the front
legs to the base assembly, and laying the front legs in the boat. The top section and rear legs of the tower
pivot to the back of the boat. DO NOT loosen the set screws in the top section when folding the tower
down. The top section needs to stay that the same angle when folded as when up. Always use a vest,
koozie or other cushion to protect the boat where the leg touches and if the two front legs touch each
other.
If you want the whole tower to fold to the back of the boat, only undo the quick release knobs that connect
the front legs to the front bases. Fold everything to the back of the boat. Important: The tower cannot
be towed when fully folded to the back of the boat, as the front legs will stick out past the sides of
the boat creating a hazard.
•Remember to protect your boat and tower when the tower is folded down. We recommend using
a koozie, ski vest or other padding between any locations where the tower front legs touch each
other, or anywhere the tower touches your boat to protect each item. It is normally a great place
to hang your vest to dry after riding as well.
•When towing your boat the MT2 can be in the up or folded position. If you tow with the tower up,
note the height of the tower and make sure you have overhead clearance. If you tow with the
tower down make sure you have pads where the tower touches the boat. Also, make sure that
there are no parts of the tower that will create a hazard when towing as mentioned in the folding
instructions. If the front legs are laying in the bow, please secure them with tie downs so that they
do not bounce around and harm the tower or boat, especially if they are on top of the cover.
•After towing and before use on the water please check all bolts and retighten / re-torque to
specifications listed.
•The MT2 is stiff and silent by design. If you hear any rattling or noise from the tower; or see any
movement in the tower, then check all hardware for tightness. Call us at 877-77-Tower if this
does not correct the problem.
- Always understand and follow the warnings on the tower warning label
Monster Tower, Inc. - 5 Year Warranty - Monster Tower warrants that for a period of 5 years from the date the tower is sold at
retail, that Monster Tower will repair directly, or supply parts for the repair of any material cracks, fractures or structural failures that
are a result of a manufacturing defect. Anodizing and powder coated surfaces as well as all hardware corrosion are specifically
excluded as their care and use cannot be controlled by Monster Tower. Any modifications or improper use, not approved in writing
by Monster Tower, shall void this warranty. Monster Tower is not responsible for personal injury or damage to the boat caused by
the use of this tower. Monster Tower’s obligation under this warranty shall not include any transportation charges or costs of
installation or any liability for direct, indirect or consequential damages resulting from delay or improper installation of the tower.
Instead of reading all this fine print, get your tower on the boat and go ride! No dealer, retailer or manufacturer is the agent of
Monster Tower and may not assume for Monster Tower any liability in connection with this warranty. This warranty is in lieu of all
other warranties, expressed or implied, including any warranty of merchantability or of fitness for a particular purpose. If you need to
make a warranty claim contact Monster Tower at 877-77-Tower to receive return authorization which is required for all claims.
Defects must be reported within 30 days of receipt.

Reference 13August2014 Pg 12 of 12 Copyright 2002-2009, Monster Tower, Inc.
APPENDIX A - Wiring Instructions for your MT2
If you add speakers or lights to your MT2, you can hide the wires inside of the rear legs of the tower as
well as in the straight cross member of the top section. Since the mating parts insert ½” inside each end
of the rear leg you can drill 1” away from the weld lines. For the top section cross member you will need to
place the hole 3” from the weld line to clear the rotating collar assembly. The hole size will depend on
what size wire you are running and how many items you need to wire. The maximum hole size we
recommend is ½” but normally smaller is all that is needed.
½”
1”
ADDITIONAL RESOURCES OF INTEREST
The various connectors, finishing grommets and items you will need for wiring lights and speakers can be
found at Radio Shack, Home Depot, Lowe’s, Ace and other hardware stores. You can also find much of
this at www.WayTekWire.com as well as many other online sources. There are some great technical
documents at www.installdr.com that may be of assistance as well. If you are interested in making your
own speakers or other items for your tower, check out www.diyTower.com.
Monster Tower Accessories
Monster Tower also offers Quick Release Wakeboard, Waterski and Surfboard Racks, and Mirrors,
Speakers and Lights to fit your tower.
Wakeboard Racks
Tower Speakers
Light Bars
Tower Mirrors