Pro-Line Boats 21 DC, Owner'S Manual

Page: 13 / 24

Trailering and Launching
Consult your trailer manufacture for specific information relating to your particular trailer. Pro
Line does not make or recommend the use of any particular trailer. Make sure the trailer you use is
certified.
Consult your state authority for state regulations pertaining to trailering a boat.
Use the following towing check list:

Check brakes.

Check springs and under carriage for cracks, loose parts and fasteners.

Ensure tires are inflated to proper pressure, and in good condition.

Check wheel bearings and lug nuts.

Verify light and signal operation.

Make sure boat is tied down from bow and stern eyes.

Stow bimini top and other items likely to blow off or out.

Carry a spare tire and tools for changing. (spare bearing and race set for

long trips)

Securely brace O/B motors.

Go slow over bumps.

Check tires and hubs often for excessive heat, service if required.

When backing have an assistant watch and guide with signals.
Capacity
The trailer you choose should be a proper match for your boat with regard to capacity and hull
design. Consult your dealer when making your selection. The tow vehicle must have sufficient
towing capacity for the combined load of boat, trailer and accessories. Check the certification label
on the forward port (left) side of your trailer to ensure that it has adequate gross vehicle weight
rating (GVWR) for the combined boat and trailer. The weight of the boat must include; the empty
basic hull weight, the motors weight, accessories weight, full fuel and water weight, provisions and
equipment weight.
Hitch
Ensure that the hitch in the tow vehicle is rated for the GTW or greater, and that the ball size
matches the trailer receiver.
Load Distribution
Generally speaking the tongue weight should be from 5 to 10 % of the GVWR. Make certain that
the hull is evenly supported along the length and width with no load concentrations. Make sure that
the bottom of the transom is supported and not hanging past the end of the trailer. Load the boat so
it is centered side to side, and straight on the supports.