ShoreLand'r LAB80TBB User Manual
Page 14

Midwest Industries, Inc.
Ida Grove, IA 51445
800.859.3028
www.shorelandr.com
0004187
Page 14
03/29/2010
Trailer Adjustments
The adjustment of the trailer to your boat is very important not
only for the trailer, but also the boat. Failure to do so may lead to
potential failure or damage to either the trailer or boat.
Adjust as follows:
Axle Adjustment
The amount of tongue weight on your trailer can be adjusted as
follows:
To lower the tongue weight, adjust the axle assembly forward. To
increase the tongue weight, adjust the axle assembly backward.
The distance that the axle assembly has to be moved will vary
because it is directly related to the weight and center of gravity of
the boat place on it.
Best towing is achieved when the tongue weight is 5-7% of the
total gross load of the complete unit.
To move th e axle assembly, loosen the U-bolts that secure the
assembly to the side frames. Move the assembly to the desired
location, then re-tighten U-bolts.
NOTE: Brake line and wire harness will need care when moving
the assembly.
Rear Support System
Place the boat on the trailer so that the transom is located at the
rear of the support system. On an RB bunk trailer, the transom of
the boat should be within 1-2” of the end of the bunk. The center
of the rear rollers on the roller rack should be approximately
4” from the transom. This gives you maximum support on the
transom. The rear pivot is adjustable forward and backward to
assist in adjusting the trailer to various length boats. This is ac-
complished by removing the pivot bolt that attaches the rear pivot
to the side frame and then sliding the assembly to the desired
position and re-attaching with the pivot bolt just removed. The
wire harness for the three-light identification light will have to be
rerouted as well.
RB Bunks
Make sure the bunks are positioned far enough apart to give your
boat as much stability as possible while transporting. Position the
bunks so they are located just to the outside of a strake that your
boat may have. This will help center your boat and assist when
loading. The bunks need to be adjusted up high enough to keep
the keel from resting on the center pads. A minimum of one to two
inches of clearance is desirable.
When the desired position is determined, tighten only enough to
hold the bunks from moving while the other adjustments are being
made. Final tightening will be done at the end of the adjusting
process.
Front Support System
RB and Roller
The keel of the boat must rest on the center of the front keel roller
system creating a three-point support system. The keel roller
system is designed to fit most boats without needing any further
adjustment.
Once the boat is positioned on the front roller system, the stabi-
lizer pads can be adjusted. This is accomplished by sliding the
pad up against the boat bottom by hand. It is not necessary that
they carry much weight. They are designed to give your boat
added stability while being towed. It may be necessary to adjust
the assembly up so that they can be moved further apart giving
additional support. Pull the assembly away from the boat. Place
the U-bolt that holds the assembly to the cross member in a lower
hole in the bracket. Then push the assembly back against the
boat. Tighten in position.
Winch Post
Now that all other adjustments are complete the winch post can
be adjusted. Slide the winch post base backward on the tongue
until the bow roller comes in contact with the boat. This bow roller
needs to be positioned directly above the boat bow eye to prevent
your boat from moving forward in the event of a sudden stop.
Loosen the three 1/2” hex bolts that clamp the winch holder chan-
nel to the winch post. Attach the winch strap into the bow eye and
slide the winch holder channel up or down to the desired position
as you crank the winch tight. Once the bow roller is located just
above the bow eye, tighten the three 1/2” hex bolts that clamp the
winch holder channel to the winch post. Tighten the U-bolts that
secure the winch post assembly to the tongue. Attach the bow
eye safety chain into the bow eye of the boat as well. The chain is
another level of protection to keep your boat and trailer together
as one unit in the event of an accident. It may also be used to
keep your boat on the trailer while loading and unloading at the
ramp,especially with a roller trailer.
Adjustments are now complete. Double check your boat for fit. If
desired fit has been achieved, tighten all fasteners that may have
either been left loose or have been loosened to do the adjusting.
Re-check all fasteners on the complete trailer to make sure they
are all tight and ready for towing. All fasteners should be periodi-
cally check before towing.
The law requires that the white ground wire on both the tongue
wire harness and vehicle harness be properly grounded to respec-
tive trailer and vehicle frames.
See your ShoreLand’r Owner’s Guide for further technical infor-
mation regarding your trailer and its components.