
Midwest Industries, Inc. Ida Grove, IA 51445 800-859-3028 www.shorelandr.com 0004292
Page 13 of 14 11/04/2010
TRAILER ADJUSTMENTS
The adjustment of the trailer to your boat is very im-
portant not only for the trailer, but also the boat. Fail-
ure 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 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 placed on it.
Best towing is achieved when the tongue weight is 5-
7% of the total gross load of the complete unit.
Note: Wire harnesses and brake line lines will need
care when moving the axle assembly.
REAR SUPPORT SYSTEM
Place the boat on the trailer so that the transom is
located at the rear of the support system. On a bunk
trailer, the transom of the boat should be within 1-2”
of the end of the bunk. This gives you maximum
support on the transom.
The rear cross member is adjustable forward or
backward to allow the trailer to be adjusted to
various length boats. This is accomplished by
removing the pivot bolt on holds each end of the rear
pivot to the side frame. Reposition the rear pivot arm
into the other hole position predrilled in the side
frame.
Reattach the rear pivot to the side frame with the
bolts just removed. Tighten.
The wire harness for the three-light identification light
must be repositioned where it comes from the side
frame to the rear pivot to eliminate slack, and
sagging of the wiring.
ROLLERS
Position the roller racks so they are far enough apart
to give your boat stability while transporting. When
the desired width is achieved, move the roller rack
system so that the rollers are just to the outside of a
strake. The rollers need to be adjusted so that you
have a minimum of one to two inches of clearance
between the keel of the boat and the center cross
member pads. This will help center the boat when
loading and unloading.
When the desired position is determined, tighten only
enough to hold the rollers from moving while the
other adjustments are being made. Final tightening
will be done at the end of the adjusting process.
FRONT ROLLER SUPPORT SYSTEM
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, how-
ever there are considerable differences in boat bot-
tom designs and certain lines of boats will require a
riser. One riser is shipped inside the rear keel guide
roller bracket. This can be removed and bolted on
the bottom side of the keel guide roller bracket so it
is between it and the keel cradle itself. This will raise
the front end of your boat 3/4”. In the event that this
is not enough, an additional one can be added to the
other keel guide roller bracket.
Once the height of the roller cradle assembly is es-
tablished the stabilizer 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 just 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. Push the assembly back
against the boat. Tighten in position.
WINCH POST
Once 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. It can be
moved up or down by removing the back bolt that
mounts the winch head to the base. When this bolt is
removed, the head can be rotated up or down to
reach the desired height required to fit your boat.
Once in this position, align the closest pair of holes in
the brackets and reinsert the bolt just removed.
Tighten.