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  40" X 48" ALUMINUM UTILITY TRAILER KIT

Owner’s Manual

  40" X 48" ALUMINUM UTILITY TRAILER KIT

Owner’s Manual

Before Each Use

Check for loose, damaged, or cracked parts on the trailer before each use. Carefully check that 
the trailer will operate properly and perform its intended function, including the tire condition 
and pressure (see Operating Instructions below). Replace damaged or worn parts immediately. 
Never use the trailer even if minor damage is present.

Operating Instructions

Plan your towing, and use the correct trailer for the job. Tools do a better and safer job when 
used in the manner for which they are designed. 

TOW VEHICLE

•  Make sure the tow vehicle is capable of towing the load.
•  Excess speed is the second highest cause of car-trailer accidents. Recommended maximum 

speed for all passenger cars towing trailers is 45 MPH.

HITCH, BALL, COUPLER

•  Check that the hitch on the tow vehicle is capable of towing the trailer. The capability of the 

hitch is normally stamped on the hitch bar and the capacity of the ball is stamped on the ball.

•  Make sure the coupler and the ball the same size (1-7/8 inch) and are rated equal to or 

greater than the load. Only attach the proper size ball to the coupler for towing.

SAFETY CHAINS

•  Always use safety chains.
•  Check that the safety chains are attached to the tow vehicle with the same length on each side.
•  Always cross the chains under the coupler and connect the safety chains to the tow vehicle frame.
•  Do not allow the chains to drag on the ground.

LOADING

•  Never overload the trailer. Maximum load is 1060 lbs. 
•  Trailer load size should not exceed trailer’s bed-

board size (40’ x 48’).

•  Load the trailer evenly from side to side with 60% of 

the load forward of the axle (see picture at right). It is 
important that the trailer coupler press down on the 
vehicle hitch, but not beyond the trailer capacity of 
1060 lbs.

•  Reduce the weight in the car trunk and rear seat areas 

by the amount of the hitch force from the trailer.

•  It is unsafe and also against the law to carry passengers in any trailer.

LIGHTING

•  Check lighting before each use and every 100 miles to be sure the stop, tail, and turn signals 

are working properly. REPLACE ANY BROKEN LENSES, EFLECTORS, OR BULBS.

•  Check the wires for good connections and possible fraying or wearing of insulation.
•  Lights supplied with this trailer are for 12-volt DC systems only. Do not attempt to power the 

bulbs with any other type of voltage.

TIRES

•  Check tires for wear, damage and proper inflation before each use and every 100 miles.
•  Tire pressure should be kept at 60 PSI.
•  Check and tighten the lug nuts. Torque to 85-90 ft.-lbs.
•  

Re-torque the lug nuts after the first 25, 50 and 100 miles and before each tow thereafter.

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TRAILER LICENSING NOTICE:

Some states may consider that this trailer kit is and specially constructed or a homemade 
vehicle for registration, licensing and/or titling purposes.
The M.C.O. (Manufacturer’s Certificate of Origin) supplied with your trailer must be filled out and 
signed by the dealer transferring ownership to you.
When licensing your trailer, you will need the signed M.C.O., a purchase invoice, cash register 
receipt, or bill of sale showing the purchase and retail sales tax or use tax collection by the 
retailer. Take these to your local Department of Motor Vehicles and upon payment of the 
appropriate State fees, you will be issued a title, registration and license plate (if required). 
Some states will require inspection of the assembled and finished trailer kit before issuing a title 
registration/license.
If you require additional information or guidance on licensing or titling, please consult your 
State Department of Motor Vehicles.

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Summary of Contents for 49804

Page 1: ...rating Instructions 11 After Each Use 13 Maintenance 13 Parts Diagram 14 Parts List 14 Replacement Parts 15 Limited Warranty 15 Intended Use The utility trailer kit with its 40 x 48 bed and 1060lb payload capacity is ideal for hauling mulch dirt machinery such as pumps generators lawn mowers or snow blowers or other similar sized cargo The trailer includes fenders to prevent cargo damage from rock...

Page 2: ...ure damaged Tail Lights damaged Side Running Lights loose bolts and nuts structural cracks bends and any other condition that may affect its safe operation Do not use the Trailer even if minor damage appears 2 of 15 Before each use always attach the Safety Chains of the trailer to the towing vehicle Make sure the Safety Chains are attached to the towing vehicle with the equal length at each side D...

Page 3: ...ot fully tighten the nuts yet 4 of 15 STEP 2 Parts Needed 4 Attach the towbar 3 to the front and middle cross members using M10 25 bolts 10 flat washers and M10 nylon nuts noting the bolt direction shown in the figure below 5 Attach the front and rear spring hangers 4 5 noting that the shorter hangers 4 belong toward the front and the longer hangers 5 in the back using M10 25 bolts 10 flat washers...

Page 4: ... perpendicular to the side rails 7 of 14 STEP 3 Parts Needed 6 Put the slipper springs 9 on the spring hangers making sure the spring eyes are forward see figure below Secure the springs with M14 80 bolts 14 flat washers and M14nylon nuts bolt set B noting the bolt direction shown in the figure below 7 Place the axle 10 on top of the slipper springs Place the M10 U bolts down over the axel and on ...

Page 5: ...ping connec tions 25 Connect the wire leads from the side running lights to the brown wire on each side with the wire connectors See connector figures D and E in the diagram Use pliers to squeeze the connector closed 26 Cut the yellow brown and green brown wires to appropriate lengths to go down the side rails to the tail lights and strip the wire ends by 3 4 Push on the wire clips to hold the wir...

Page 6: ...It is important that the trailer coupler press down on the vehicle hitch but not beyond the trailer capacity of 1060 lbs Reduce the weight in the car trunk and rear seat areas by the amount of the hitch force from the trailer It is unsafe and also against the law to carry passengers in any trailer LIGHTING Check lighting before each use and every 100 miles to be sure the stop tail and turn signals...

Page 7: ...ler will increase your braking and stopping distances appreciably DO NOT allow anyone to ride on the trailer Make wide turns when towing a loaded trailer avoiding both sharp turns and U turns Turning too sharply can cause damage to the trailer and or the tow vehicle CAUTION Care must be taken when backing up the trailer only back up the trailer on a straight path The trailer could jackknife if all...

Page 8: ...structions and in a workmanlike manner Obligations of Purchaser You must retain Your product purchase receipt to verify date of purchase and that You are the original purchaser To make a warranty claim contact Us at 1 800 222 5381 identify the product by make and model number and follow the claim instructions that will be provided The product and the purchase receipt must be provided to Us in orde...

Page 9: ...warran ties or incidental or consequential damages so the above limitations may not apply to You This limited warranty is governed by the laws of the State of Minnesota without regard to rules pertaining to conflicts of law The state courts located in Dakota County Minnesota shall have exclusive jurisdiction for any disputes relating to this warranty Distributed by Northern Tool Equipment Co Inc B...

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