ShoreLand'r SL23AL - Manual (Page 16)

Midwest Industries, Inc. Ida Grove, IA 51445 (800)859-3028 www.shorelandr.com M303185
Page 16
IMPORTANT: All nuts and bolts must be
tightened before towing.
The law requires that the white
ground wire on both the tongue wire
harness and vehicle harness be
properly grounded to the trailer and
vehicle frames.
TRAILER ADJUSTMENTS
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.
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 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 each end that holds the rear
pivot arm to the side frame and the rear
pivot offset weldments.
Once the rear pivot arm assembly is
removed, remove the two additional
bolts on each side frame that mount the
rear pivot offset weldments to the side
frame. Move them to the desired
location and remount to the side frames
with the bolts just removed. Reposition
the rear pivot arm between the two rear
pivot offset weldments just installed.
Secure in place using the two pivot bolts
removed earlier. Tighten.
The wire harness for the three-light
identification light must be re-positioned
where it comes from the black wire
harness tubing to eliminate slack, and
sagging of the wiring.
Bunks
The bunks must be 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 the boat’s strake.
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 1” to 2” of clearance is
desirable.
RB Bunk trailers will be adjusted the
same way.
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 the strake. The rollers need
to be adjusted so that you have a
minimum of 1” to 2” 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 SUPPORT SYSTEM
Bunk
The front bunks should be adjusted
either in or out so that the bunk will
continue to run just to the outside of the
strake of the boat. The bunks can run at
an angle rather than parallel with the
centerline of the trailer. Adjust the bunks
up so that there is approximately 1”
clearance between the keel of the boat
and the center cross member pad.
RB & Roller
The keel of the boat must rest on 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, however there is
considerable differences in boat bottom
designs and certain lines of boats will
require a riser. One riser is shipped in-
side 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. See Detail Q. 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. The additional riser kit is
an SS1403.
Once the height of the roller cradle
assembly is established the stabilizer
pads can be adjusted. Slide the pad up
against the boat bottom. It is not
necessary that stabilizer pads 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 from the centerline of
the trailer 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
Slide the winch post base backward on
the tongue until the bow roller comes in
contact with the boat. The 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
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. Attach the
winch strap and crank winch tight.
Attach the bow eye safety chain into the
bow eye of the boat as well. This is just
another level of protection to keep your
boat and trailer together as one unit.
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 periodically
checked before towing.
See your ShoreLand’r Owner’s Guide
for further technical information
regarding your trailer and its
components.