Let's Go Aero LGT 1107 User Manual
liTTleGianT Trailer
lGT 1107 - T (Torsion based model)
™
2120 Naegele Road Colorado Springs, CO 80904
Visit our website at www.LetsGoAero.com For Assistance, please call 1-877-464-2376 or 719-630-3800
User Assembly and Operation Manual
Save ThiS Manual
Read the owner’s manual over carefully before you begin using your trailer. You will need
this manual for the safety warnings and precautions, operating procedures, parts list,
inspection, and maintenance information. Keep this manual for continued reference.
Safe uSe & OperaTiOn pg. 2
SafeTy CheCkliST pg. 2
inSpeCTiOn, MainTenanCe
and CleaninG pg. 3
parTS idenTifiCaTiOn pg. 9,10
liTTleGianT Trailer aSSeMbly pg. 11
WarranTy / repair prOCedureS pg. 17
Trailer liCenSinG nOTiCe pg. 17
The LittleGiant Trailer™ is manufactured by Let’s Go Aero in
Copyright © 2007 Let’s Go Aero, Inc.
Colorado Springs, CO
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Safe uSe & OperaTiOn
Be sure to follow these guidelines to prevent possible hazards from misuse.
Do NOT exceed the trailer’s maximum load weight capacity of 1,500 lbs. or exceed the trailer’s bed size.
The Gross Vehicle Weight Rating (G.V.W.R.) for the LittleGiant™ Trailer is 1,920 lbs, and is calculated as
follows:
The Empty Weight of the Trailer (420 lbs) + the maximum payload the trailer can carry
(1,500 lbs) = 1,920 lbs G.V.W.R.
2. Make sure the towing vehicle as well as the hitch is capable of towing the trailer and its payload. Check your vehicle
and hitch owner’s manual for tow ratings.
3. The tail light bulbs supplied with this trailer are for a 12 volt DC electrical system only. Do not attempt to power the light
bulbs with any other type or voltage electrical current.
4. Always check to make sure the payload being transported is properly and safely secured in the trailer. Never place
loads on one side only. Load the trailer evenly from side to side with 60% of the load forward of the axle (the tongue
weight is 10% of the load, which does not include the weight of the trailer. The load is divided so that 90% of the load
is over the axle and 10% is over the tongue). See diagrams below:
Center Load from
Side to Side
60% of Load
Forward of Axle
90% of Load
Over Axle
Before Each Use
Trailers are generally not used everyday. Your trailer may sit for extended periods of time between uses making it very
important to check all components thoroughly before each use. Following these simple instructions will maximize the life of
your trailer and keep you safely transporting your cargo.
• Inspect the general condition of the trailer. Check for loose bolts and nuts, misalignment or binding of moving parts,
cracked, bent, or broken parts, excessively worn safety cable, damaged tail lights/side running lights/wire harness,
loose lug nuts, loose hitch connection, and any other condition that may affect its safe operation.
• Check your maintenance schedule to ensure that all routine maintenance matters are current. Perform any neglect-
ed maintenance by a qualied technician.
• Always check wheel lug nuts for proper tightness. When using trailer for the rst time, check wheel lug nuts for
proper tightness at 50 miles of travel. Before every subsequent use and at 500 mile intervals during every trip, check
and tighten the tire lug nuts. Always ensure wheel bolts are tight. Torque to 50 – 75 ft.-lbs.
• Check the tires for wear and the tire pressure for proper ination (30 PSI).
• Check the operation of all lights. Replace any faulty bulbs. Operating lights are mandatory on a trailer. Periodically
check lighting when towing over long distances. Check the tightness of all connections.
• Make sure wiring is properly installed and secured to trailer to prevent from hanging and catching on any road debris.
• Make sure the safety cables are attached to the trailer and the towing vehicle. Criss-cross cables as necessary to
prevent from hanging and catching on any road debris.
• Check and adjust your tow vehicle’s tow height to make sure that the trailer is being towed level.
• Check that the trailer coupler is fastened securely onto the trailer ball. The LittleGiant Trailer is equipped with a 2"
coupler and must be used with a 2" trailer ball. After assembly and attachment, pull up and down on the coupler to
make sure the hitch ball is tting snugly in the coupler. If the coupler is not secured properly, the ball could come
loose while the trailer is in motion, possibly causing property damage, serious
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Steps for Determining Correct Load Limit
(1) Locate the statement “The weight of cargo should never exceed XXX kg or XXX lbs” on your vehicle’s placard.
(2) This gure equals the available amount of cargo and luggage load capacity.
(3) Determine the combined weight of luggage and cargo being loaded on the vehicle. That weight may not safely
exceed the available cargo and luggage load capacity.
(4) The trailer’s empty weight is 420 lbs, combined with 1,500 lbs of payload is the 1,920 Gross Vehicle Weight Rating.
WARNINGS
Failure to adhere to these recommendations may result in potential hazards from improper operation, including property damage and bodily injury.
• Keep children away. Be sure children are kept a safe distance from the trailer operating area.
• Never sit or ride on the trailer. Serious injury or death could occur.
• Whenever possible, park the trailer on a at, level, paved surface and chock both tires to keep the trailer from
accidently moving.
• When driving do not exceed the speed limit. Braking time can be considerably longer when a vehicle is tow-
ing a loaded trailer. Excess speed is a major cause of vehicle-trailer accidents.
• Do not overload trailer. Overloading has adverse effects on handling, stopping, and on tires, and may cause
property damage, serious personal injury, or death.
• Make sure the coupler is secured properly to the hitch ball. If not secured properly, the ball could come
loose while the trailer is in motion, possibly causing property damage, serious personal injury, or death.
• Tighten wheel lug nuts. Failure to properly tighten wheel lug nuts and to check for proper tightness during
travel my result in property damage or serious personal injury.
Inspection, Maintenance, and Cleaning
All replacement parts, maintenance and repairs should be undertaken by certied and licensed technicians. The buyer
assumes all risk and liability arising out of his or her repairs to the original product or replacement parts, or arising out of
his or her installation of replacement parts.
• Once a year or every 6,000 miles, inspect the bearings for proper lubrication. Repack if necessary. Be sure to
have a qualied technician re-pack the hub assembly and handle other maintenance items.
• To reduce friction between the coupler and hitch ball, apply a layer of heavy weight grease over the hitch ball.
Lubrication of the coupler should be done periodically to stop corrosion and keep parts moving freely.
• When servicing, use only identical replacement parts. Only use accessories intended for use with this product.
Approved accessories are available from Let’s Go Aero.
• Any modications made to the trailer or parts of the trailer will void the trailer warranty and release Let’s Go Aero
of any responsibility for damages, injuries, or accidents incurred.
2" Ball
Only -
Locking Handle
(Position B)
Locking Handle
(Position A)
2"
Channel
Adjustment
Trailer
To Make Sure That the Trailer Ball is Completely
Engaged in the Coupler Ball
Place coupler over the 2" trailer ball on your vehicle. Raise the locking lever
to allow the coupler to drop fully onto the hitch ball. Press the locking lever
down on the coupler to make sure the hitch ball is tting snugly in the coupler. There should be no play between the hitch ball and the coupler. If there
is play, tighten the adjustment nut until no play is present. If the adjustment
nut is too tight, the handle will not lock.
To adjust coupler to ball, raise the locking lever, push up on the channel lock
and turn nut to tighten or loosen the coupler. Proper adjustment is obtained
when coupler is as tight as possible on the ball and locking lever can still be
opened and closed.
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Wiring
• The LittleGiant Trailer has a four at-connector wire style plug. This is a common pin hole conguration for the wir-
ing of towables. Check to verify your vehicle’s wiring plug style. Should it differ, consult your local hitch installer for a
wire plug adaptor.
• Always check all lights before towing for brake, running, signal, and side marker light operation. Make sure that all
your connections are solid and that all wiring is in good condition. Should the brake, signal, or running lights not be
working, rst check that the vehicle’s lighting is operating properly.
Note: Bare, stripped or pinched wire will cause a short in the trailer, which will cause the vehicle fuse to blow. A solid
ground is required for your lights to work properly. All contacts must be to bare metal. Light covers should be
well maintained and kept clean. Be sure that your lights are always visible, not obstructed by your load.
To test vehicle wiring:
You will need a 12v light tester. Attach the wire clamp of the tester to the ground wire on the vehicle plug. Then
touch the tester pin into one of the vehicle plug contacts. Turn on the corresponding vehicle operation, i.e., running lights. This will illuminate the tester light if the vehicle wiring is correct. Follow this same procedure for the
signal and brake lights.
To test the trailer wiring:
Once you have conrmed that the vehicle trailer plug is operating properly, connect the trailer plug to your vehicle.
Proceed to test each of the lights and power leads using your 12v light tester.
Rubber Torsion Axle
With The Suspension Built-In
• Durability and Reliability.
• A Soft, Quiet, No Shock Ride With
Independent Wheel Action.
• Easy to Assemble.
• Load Carrying Crossmember.
• Maintenance Free.
• Eliminates Sway.
Bearing Inspection / Replacement
The bearings should be inspected any time the hub is removed from the axle or at intervals as outlined in the maintenance schedule shown on page 8 of this manual. The bearing cones should show no signs of excessive wear or damage
such as at spots on the rollers, broken cages, pitting, or corrosion. The bearing cups that are pressed into the hub should
also be checked for wear or damage. If the bearings do need to be replaced, follow the procedure as outlined and only
use bearings that are approved for use in the following chart.
IMPORTANT: Both the bearing cup and bearing cone should be replaced any time a bearing is replaced.
The following procedure should be used for bearing cup replacement:
1. Carefully tap the existing bearing cup out of the hub using a brass punch
2. Clean the bore area after removing the cup to ensure there are no nicks or burrs.
3. Carefully tap the new bearing cup into the hub making sure the cup is seated against the bottom of the bore.
No Coil or
Leaf Springs
Needed
bearinG replaCeMenT & inTerChanGe
Axle # of Spindle Inner Bearings Outer Bearings
Capacity Bolts Type
1000# - 1900# 4 or 5 Straight L45410 L45449 L45410 L45449
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Bearing Lubrication
Below is a listing of approved lubrication.
lubriCaTiOn SpeCifiCaTiOnS
Grease
Dropping Point 230°C (446°F) Minimum
Viscosity Index 80 Minimum
The grease used should meet the requirements as shown in the chart above. The following amounts
of grease should be used:
• 4 ounces to completely exchange the grease throughout the hub
• 1 1/2 - 3 ounces every (3) months or 1000 miles thereafter or as use requires
Bearing Adjustment, Hub Installation, and Lubrication
Bearing adjustment is a very important part of achieving maximum bearing life and trouble-free service. Most bearing failures can be attributed to improper bearing adjustment, normally due to the bearings being adjusted too tight.
Once all of the necessary inspections have been performed and the units have been properly lubricated, the following
procedure should be used for reinstallation of the hubs:
1. Place the lubricated unit onto the same spindle from which it was removed. Make sure all of the components are
reinstalled as they were removed.
2. Place the at washer onto the spindle followed by the bend-leg washer, followed by the castle nut.
3. Finger-tighten the castle nut by hand without moving the hub.
4. Bend the legs of the bend-leg washer to the channel of the castle nut to ensure the castle nut will not back off.
5. The castle nut should be free to move with your ngers with only the bend-leg washer holding it in place and the
hub should not have noticeable movement when pulled back and forth.
6. After assembling the hub, the grease is pumped through the hub via the grease zert in the end of the grease cap,
then through the hole in the spindle to the space between the two bearings. The nal step is to reinstall the dust
cap.
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Rubber Torsion Axle Suspension
Except for periodic inspection of the fasteners used to attach the rubber torsion axle to the trailer frame and a visual
inspection of the welds, no other suspension maintenance is required. However, all maintenance regarding hubs, drums,
rotors, bearing, wheels, and tires, should be adhered to.
The torsion suspension system is a self-contained suspension
system that is housed entirely inside the axle beam. Unlike the
spring suspension system, the axle beam attaches directly to the
trailer frame without the need for various mounting components.
The action provided by the rubber torsion suspension system is
unique from the leaf spring suspension providing several operating advantages including independent suspension and a virtually
maintenance-free suspension system.
How the Rubber Torsion Suspension System Works
The rubber torsion axles provide a much improved trailer
ride relative to conventional spring axles through a unique
arrangement of the steel torsion bar surrounded by four natural rubber cords encased in the main structural member of
the axle beam. The wheel/hub spindle is attached to a lever,
called the torsion arm assembly. This assembly includes the
torsion arm, the torsion bar and spindle. As load is applied
to the trailer, the torsion arm assembly pivots around the torsion bar, causing a rolling or compressive resistance in the
rubber cords inside of the axle beam. Both sides of the axle
are completely independent from one another.
Direction of Travel
The rubber torsion axle beams and stub axles must be
mounted with the torsion arm and spindle trailing to the
rear of the axle beam.
As Load is Applied to the Trailer, the Torsion
Arm Moves to Absorb the Shock
Wheels and Tires
Wheel Selection
Wheels are a critical component of your running gear system. When specifying or replacing your trailer wheels it is
important that the wheels, tires, and axle are properly matched. The following characteristics are extremely important
and should be thoroughly checked when replacement wheels are considered.
1. Bolt Circle. Many bolt circle dimensions are available and some vary by so little that it might be possible to attach
an improper wheel that does not match the hub. Be sure to match you wheel to the hub.
2. Capacity. Make sure that the wheels have enough load carrying capacity and pressure rating to match the maxi-
mum load of the tire and trailer.
3. Offset. This refers to the relationship of the centerline of the tire to the hub face of the axle. Care should be taken
to match any replacement wheel with the same offset wheel as originally equipped. Failure to match offset can
result in reducing the load carrying capacity of your axle.
Torque Requirements
It is extremely important to apply and maintain proper wheel mounting torque on your trailer axle. Torque wrenches
are the best method to ensure the proper amount of torque is being applied to a fastener.
It is important that the specied torque levels are maintained on the wheel nuts or bolts on your axle to prevent loose
wheels, broken wheel studs, and possible wheel separation from the axle.
Wheel nuts and bolts are offered in different cone angles (usually 60° or 90°). It is important to match the angle of the
fastener to the wheel on the axle.
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