Harbor Freight 42709 Owner S Manual

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Page Count: 24

Page 2 For technical questions, please call 1-800-444-3353. Item 42709

PARTS LIST

PART DESCRIPTION QTY

1FL Front Left Side Rail 1

1FR Front Right Side Rail 1

1RL Rear Left Side Rail 1

1RR Rear Right Side Rail 1

2A Cross Member 1

2B Cross Member 5

3L Left Connecting Rail 1

3R Right Connecting Rail 1

4Spare Tire Bar 1

5 “T” Plate 1

6 Coupler Base 1

7 Coupler 1

8 Safety Chain 1

9 “L”Latch 2

10 Rotation Plate (Flat) 2

11L Left Rotation Plate 1

11R Right Rotation Plate 1

12L Spring Hanger 1

12R Spring Hanger 1

13 Caster 4

14 Spring Plate 2

15 Spring 2

16 Axle 1

17 V-Bolt 4

18 Hub 2

19 Tire/Rim Assembly 2

20 Bearing 2

21 Dust Cap 2

22 Fender 2

23 Fender Seat 2

24 Side Running Light 2

25 Stake Clamp 8

26 Tail Light Bracket 2

27 License Plate Bracket 1

28L Left Tail Light 1

28R Right Tail Light 1

29 Safety Pin 1

30L Caster Base (Left) 1

30R Caster Base (Right) 1

31 Grease Fitting 2

32 Seal 2

PART DESCRIPTION QTY

A M10X20 Bolt 64

B M10X30 Bolt 14

C M10X50 Bolt 1

D M10X30 Carriage Bolt 4

E M14X80 Bolt 6

G M10 Nylon Nut 92

H M10 Hex Nut 1

I M14 Hex Nut 6

J M12 Lug Nut 8

K M20 Castle Nut 2

L10 Spring Washer 8

N20 Flat Washer 2

O 4 Cotter Pin 2

P 3 Cotter Pin 6

Q 3mm “R” Pin 2

R 4mm Self Tapping Screw 4

S 2mm “R” Pin 1

W M10X90 Bolt 2

Page 3For technical questions, please call 1-800-444-3353.Item 42709

Page 4 For technical questions, please call 1-800-444-3353. Item 42709

Page 5For technical questions, please call 1-800-444-3353.Item 42709

DON’T TIGHTEN YET!

TO MAKE ASSEMBLY EASIER, wait until assembly is

complete and all hardware is in place before tightening

any nut or bolt. Leave hardware snug until then.

Page 6 For technical questions, please call 1-800-444-3353. Item 42709

DON’T TIGHTEN YET!

TO MAKE ASSEMBLY EASIER, wait until assembly is

complete and all hardware is in place before tightening

any nut or bolt. Leave hardware snug until then.

nut as diagram shows. Do not overtighten the nuts to allow trailer

to fold easily.

Page 7For technical questions, please call 1-800-444-3353.Item 42709

DON’T TIGHTEN YET!

TO MAKE ASSEMBLY EASIER, wait until assembly is

complete and all hardware is in place before tightening

any nut or bolt. Leave hardware snug until then.

Page 8 For technical questions, please call 1-800-444-3353. Item 42709

DON’T TIGHTEN YET!

TO MAKE ASSEMBLY EASIER, wait until assembly is

complete and all hardware is in place before tightening

any nut or bolt. Leave hardware snug until then.

Page 9For technical questions, please call 1-800-444-3353.Item 42709

TIGHTEN ALL HARDWARE!

Now that frame is completely assembled, retrace all assembly steps

and make sure that all hardware is properly wrench-tightened.

Also, tighten lug nuts/lug bolts to 90 ft-lb.

Page 10 For technical questions, please call 1-800-444-3353. Item 42709

Page 11For technical questions, please call 1-800-444-3353.Item 42709

Note: Casters are designed to allow

repositioning of the trailer only.

Do not roll the trailer long

distances on casters.

Page 12 For technical questions, please call 1-800-444-3353. Item 42709

Use U-bolt under bar and through two holes in the rim.

Secure with nuts, tightening them evenly.

Make sure the spare tire is held rmly in place.

1. Assemble the stand as shown.

2. Remove R-pin, pivot stand into transport

position, and replace R-pin.

Page 13For technical questions, please call 1-800-444-3353.Item 42709

Page 14 For technical questions, please call 1-800-444-3353. Item 42709

.

Page 15For technical questions, please call 1-800-444-3353.Item 42709

Page 16 For technical questions, please call 1-800-444-3353. Item 42709

SPECIAL NOTICE FOR COUPLER

1. Only use a 1-7/8" ball hitch (not included) on the towing vehicle.

2. Temporarily remove the "R" Pin and Safety Pin. Then, pull up on the Trigger and lift up on the Handle.

3. NOTE: To reduce friction between the hitch ball and Coupler, apply a layer of heavyweight grease over

the hitch ball.

4. With assistance, place the Coupler over the vehicle's hitch ball and pull back on the Trigger and push

down on the Handle until the Trigger locks in the slot. Pull up and 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 Coupler.

IMPORTANT - If there is play, tighten the Adjustment Nut until no play is present:

After unlocking the Handle, the Nut retaining plate (holding the adjusting nut in place) needs to be

pressed back while the Nut is tightened. After Nut is tightened, the retaining plate needs to t in place

against the ats of the Nut to prevent it from moving. This adjustment should be done by 2 people. If the

Adjustment Nut is too tight, the Handle will not lock.

After the Adjustment Nut is properly adjusted, pull back on the Trigger and push down on the Handle until

the Trigger locks in the slot. Pull up on Handle rmly to make sure the Trigger is locked in place and the

Handle cannot move. Replace the Safety Pin and "R" Pin.

TRAILER LICENSING NOTICE

Some states may consider that this trailer kit is a specially constructed or homemade vehicle for registration

licensing and/or titling purposes. The M.C.O. (Manufacturer's Certicate of Origin) supplied with your trailer

should be lled 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 Vehicle

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 nished 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.

Page 17For technical questions, please call 1-800-444-3353.Item 42709

950 lb.

95 lb.

Page 18 For technical questions, please call 1-800-444-3353. Item 42709

Page 19For technical questions, please call 1-800-444-3353.Item 42709

TIRE INFORMATION

Tire Terminology Glossary

• Accessory weight means- the combined weight of

automatic transmission, power steering, power brakes, power

windows, power seats, radio, and heater, to the extent that

these items are available as factory-installed equipment.

• Carcass means- the tire structure except for the tread which

provides the major portion of the tire’s capability to deect in

response to the vertical loads and tractive forces that the tire

transmits from the roadway to the non-pneumatic rim, the

wheel center member, or the vehicle and which attaches to

the vehicle or attaches, either integrally or separably, to the

wheel center member or non-pneumatic rim.

• Carcass separation means- the pulling away of the carcass

from the non-pneumatic rim or wheel center member.

• Chunking means- the breaking away of pieces of the

carcass or tread.

• Cracking means- any parting within the carcass, tread, or

any components that connect the tire to the wheel center

member.

• Curb weight means- the weight of a motor vehicle with

standard equipment including the maximum capacity of fuel,

oil, and coolant, and, if so equipped, air conditioning and

additional weight optional engine.

• Load rating means- the maximum load a tire is rated to carry.

• Maximum loaded vehicle weight means- the sum of:

a. Curb weight;

b. Accessory weight;

c. Vehicle capacity weight; and

d. Production options weight.

• Maximum tire width means- the greater of either the linear

distance between the exterior edges of the carcass or the linear

distance between the exterior edges of the tread, both being

measured parallel to the rolling axis of the tire.

• Normal occupant weight means- 68 kilograms times the

number of occupants.

• Occupant distribution means- distribution of occupants in

a vehicle.

• Production options weight means- the combined weight

of those installed regular production options weighing over

2.3 kilograms in excess of those standard items which

they replace, not previously considered in curb weight or

accessory weight, including heavy duty brakes, ride levelers,

roof rack, heavy duty battery, and special trim.

• Tread means- that portion of the tire that comes in contact

with the road.

• Tread separation means- pulling away of the tread from the

carcass.

• Vehicle capacity weight means- the rated cargo and

luggage load plus 68 kilograms times the vehicle’s

designated seating capacity.

• Vehicle maximum load on the tire means- that load on an

individual tire that is determined by distributing to each axle

its share of the maximum loaded vehicle weight and dividing

by two.

• Vehicle normal load on the tire means- that load on an

individual tire that is determined by distributing to each axle

its share of the curb weight, accessory weight, and normal

occupant weight and dividing by 2.

Tire Markings

Load index and

Speed rating*

European tire

certicate*

U.S. DOT tire

identication

number

*Information not required by U.S. DOT

Inner diameter

in inches

Section width

in inches

Trailer

tire

Maximum

load rating

Tire ply

composition

and materials

used

Maximum

permissible

ination

pressure

REV 07f, 09b, 09g

Page 20 For technical questions, please call 1-800-444-3353. Item 42709

• Section width- This number gives the width of the tire in

inches. The larger the number, the wider the tire. (The

markings on the example tire diagram show 4.80. The

markings on your tire may differ.)

• Inner diameter- This number gives the inner diameter of

the tire in inches. This is also the rim diameter in inches.

(The markings on the example tire diagram show 12. The

markings on your tire may differ.)

• U.S. DOT tire identication number- This begins with the

letters “DOT” and indicates that the tire meets all federal

standards. The next two numbers or letters are the plant

code where it was manufactured, and the last four numbers

represent the week and year that the tire was built. For

example, the numbers 2107 mean the 21st week of 2007.

Any other numbers used are marketing codes used at

the manufacturer’s discretion. This information is used to

contact consumers if a tire defect requires a recall.

• Maximum Load Rating- This number indicates the

maximum load in kilograms and pounds that can be carried

by the tire.

Code Pounds

71 761

72 783

73 805

74 827

75 853

76 882

77 908

78 937

79 963

80 992

81 1,019

82 1,047

83 1,074

84 1,102

Code Pounds

85 1,135

86 1,168

87 1,201

88 1,235

89 1,279

90 1,323

91 1,356

92 1,389

93 1,433

94 1,477

95 1,521

96 1,565

97 1,609

98 1,653

Code Pounds

99 1,709

100 1,764

101 1,819

102 1,874

103 1,929

104 1,984

105 2,039

106 2,094

107 2,149

108 2,205

109 2,271

110 2,337

Load Index Rating Codes

• Load index- This is a measurement of how much weight

each tire can support. See chart above. (The markings on

the example tire diagram show 71. The markings on your

tire may differ.) Note: You may not nd this information on

all tires because it is not required by law.

•

Code MPH

F 50

G 56

J 62

K 68

L 75

M 81

Code MPH

N 87

P 94

Q 100

R 106

S112

T118

Code MPH

U 124

H 130

V 149

Z 149

W 168

Y 186

Tire Speed Rating Codes

Speed Rating- The speed rating denotes the speed at

which a tire is designed to be driven for extended periods of

time. This does not indicate that the vehicle or rims can

safely reach or maintain that speed. These ratings are

listed to the right. (The markings on the example tire

diagram show M. The markings on your tire may differ.)

Note: You may not nd this information on all tires because

it is not required by law.

• Tire Ply Composition and Materials Used- The number

of plies indicates the number of layers of rubber-coated

fabric in the tire. In general, the greater the number of plies,

the more weight a tire can support. Tire manufacturers also

must indicate the materials in the tire, which include steel,

nylon, polyester, and others.

• Maximum Permissible Ination Pressure- This number is

the greatest amount of air pressure that should ever be put

in the tire under normal driving conditions.

BEARING PACKING INSTRUCTIONS

Important

Read and adhere to the following instructions; failure to read and obey all

of the following instructions COMPLETELY will void the warranty and can result

in damage to the trailer, property damage, or SERIOUS PERSONAL INJURY.

Whenever a hub is disassembled (if a hub on a new unit requires assembly or a hub is

disassembled for maintenance), the following procedure MUST be followed.

1. Using a suitable solvent, thoroughly clean

the bearings and the rest of the parts in

the Hub assembly of all grease, dirt, metal

shavings, or any other foreign object. The

parts must be cleaned even if they are

new or clean.

2. Allow all pieces to dry completely.

3. Make sure that your hands are thoroughly

clean and the bearing packer (not included)

is also thoroughly clean.

4. Place fresh, clean bearing grease in the

packer.

5. With the grease-lled bearing packer in one

hand and the bearing in the other, press the

bearing into the grease, forcing the grease

inside the slots in the bearing, continue

doing this until every slot in the bearing is

completely full of grease.

6. Finish assembling the hub/wheel assembly

as explained in the manual, being careful not

to get any dirt or debris on any part of the

assembly.

Page 21For technical questions, please call 1-800-444-3353.Item 42709

TIRE CARE

Checking Tire Pressure

Note: Underinated tires can decrease handling,

stopping performance, traction, tire life,

and load-carrying capability, in addition to

causing other negative and hazardous effects,

including tire failure. Overinated tires are

at greater risk of an impact break, where the

tread and casing break when striking a hard

edge, often opening a huge gash across

the tread. Incorrect ination pressure also

increases tires wear rate. Therefore, it is

important to keep tires inated properly.

Check all tires’ pressure at least monthly, due

to the following factors:

• Most tires naturally lose air gradually.

• Tires can suddenly lose air if the tire strikes

a pothole, curb, or other object.

• It is usually not possible to determine

underinflation of radial tires by visual

inspection.

This vehicle has 60 PSI recommended cold

tire ination pressure. The term “cold” in this

manual does not refer to the temperature outside,

but it refers to the fact that a tire that has not been

driven for a period is cooler (and therefore has lower

pressure) than a tire that has been driven on. Tires

heat up while being driven on. To check (or ll to)

a tire’s cold ination, the tire must have not been

driven for more than a mile or two for at least three

hours. If you check a tires pressure when it is not

“cold”, the pressure will appear higher than the

actual cold tire ination.

Steps for Maintaining Proper Tire

Pressure

1. Locate the recommended tire pressure on the

vehicle’s tire information placard, certication

label, or in the owner’s manual. This trailer

has 60 PSI recommended cold tire ination

pressure.

2. Measure and record the tire pressure of all

tires.

3. If the tire pressure is too high in any of the

tires and the tires have not been driven for

at least three hours, slowly release air by

gently pressing on the tire valve stem with the

edge of your tire gauge until you get to the

correct pressure. If the vehicle have been

driven within the past three hours and the tire

pressure is too high on any tires, then recheck

the pressure once the tires have been allowed

to sit motionless for at least three hours.

4. If the tire pressure is too low, note the

difference between the measured tire pressure

and the correct tire pressure. These “missing”

pounds of pressure are what you will need to

add.

5. At a service station, add the missing pounds of

air pressure to each tire that is underinated.

6. Check all the tires to make sure they have the

same air pressure.

7. If the tires’ pressure was not measured “cold”,

then the pressure should be rechecked with

the tires cold as soon as possible.

Tire Ination and Load Limit

Tire and Loading Information Placard

TIRE AND LOADING INFORMATION

The weight of cargo should never exceed 430 kg or 950 lb.

TIRE SIZE COLD TIRE PRESSURE SEE OWNER’S

MANUAL FOR

ADDITIONAL

INFORMATION.

FRONT 4.80/4.00-8 410 kPa, 60 PSI

REAR NONE NONE

SPARE NONE NONE

12a MODEL 42709

The Tire and Loading Information Placard displays the cold tire ination pressure and the load limit for

this vehicle. See the Tire Care section for an explanation of tire pressure and see the Vehicle Load Limit

section following that for an explanation of load limit.

Page 22 For technical questions, please call 1-800-444-3353. Item 42709

Tire Size

To maintain safety, only purchase new tires of

the same size as the original tires. Look at the Tire

and Loading Information Placard, the Specications

Chart in this manual, or the sidewall of the tire being

replaced. If you have any doubt about selecting the

correct size, consult a tire dealer.

Tire Tread

The tire tread provides traction that prevents

your vehicle from slipping, especially if the road is

wet or icy. Tires are unsafe and should be replaced

when the tread is worn down to 1/16″. Measure

tread depth using a tread depth indicator (not

included).

Tire Rotation

Every 5,000 miles the left and right tires should

be switched. This will cause the tires to wear more

evenly and last longer.

Tire Balance and Alignment

The tires need to be balanced to prevent

vibration when driving. This involves attaching small

weights to the rim to offset small differences in rim

and tire weight. The tires also need to be aligned

properly. Alignment is the orientation of the tires to

the road surface and their being parallel. This helps

the tires to wear evenly, and provide better traction.

Both tire balance and alignment require specialized

equipment that is not provided with this vehicle.

Tire Repair

To properly repair a punctured tire, the hole

needs to be properly plugged and patched from the

inside of the tire. Tread punctures can be repaired

if they are not too large. Sidewall punctures should

not be repaired, the tire needs to be replaced if the

sidewall is damaged. Tires should be removed from

the rim to be inspected before being plugged and

patched. A qualied mechanic should remove the

tire from the rim, perform the repair, and remount

the tire.

VEHICLE LOAD LIMIT

Steps for Determining Correct Load

Limit

1. Locate the statement “The weight of cargo

should never exceed XXX kilograms or XXX

pounds” on your vehicle’s placard.

2. That 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. If the trailer’s load exceeds the cargo and

luggage load capacity, then the trailer be

unsafe resulting in hazardous effects, such

as: Trailer’s tires will not be able to maintain

traction properly, and stopping distance will be

increased signicantly.

Page 23For technical questions, please call 1-800-444-3353.Item 42709

IMPORTANT

For safe use and operation, obey the following notices:

1. Read all instructions carefully and follow them step-by-step. Keep the instruction manual

in a safe place.

2. Double-check the assembly after you nish to ensure everything is assembled properly.

3. Follow the Trailer Licensing notice to properly license this trailer.

4. Inspect before every use; do not use if parts are loose or damaged.

5. Keep permanent labels in place and in good condition.

Notice:

• Repack bearings after every 3,000 miles of use.

• Maintain tires as explained in this manual.

• Comply with the following before every use:

1. Tighten U-bolt.

2. Tighten lug nut.

3. Tighten trigger lock on coupler.

4. Hook up safety chain.

5. Trailer load should not exceed 950 lb. capacity and must be properly secured.

6. Trailer load size must not exceed trailer’s bed board size.

CORRECT WAY TO LOAD THE TRAILER

O

O

O

O

X

X

X

X

YES NO

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353

Limited 90 Day Warranty

Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and

durability standards, and warrants to the original purchaser that this product is free from defects

in materials and workmanship for the period of 90 days from the date of purchase. This warranty

does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents,

repairs or alterations outside our facilities, criminal activity, improper installation, normal wear

and tear, or to lack of maintenance. We shall in no event be liable for death, injuries to persons

or property, or for incidental, contingent, special or consequential damages arising from the use

of our product. Some states do not allow the exclusion or limitation of incidental or consequential

damages, so the above limitation of exclusion may not apply to you. THIS WARRANTY IS

EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE

WARRANTIES OF MERCHANTABILITY AND FITNESS.

To take advantage of this warranty, the product or part must be returned to us with transportation

charges prepaid. Proof of purchase date and an explanation of the complaint must accompany the

merchandise. If our inspection veries the defect, we will either repair or replace the product at our

election or we may elect to refund the purchase price if we cannot readily and quickly provide you

with a replacement. We will return repaired products at our expense, but if we determine there is

no defect, or that the defect resulted from causes not within the scope of our warranty, then you

must bear the cost of returning the product.

This warranty gives you specic legal rights and you may also have other rights which vary from

state to state.