HAUL MASTER 90154 Bedienungsanleitung
TRAILER
FOLDABLE - WITH 12” WHEELS
MODEL 90154
ASSEMBLY AND OPERATING INSTRUCTIONS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright©2003 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical questions or replacement parts, please call 1-800-444-3353.
Manual Revised 04j; 06k; 08d; 09b
SKU 90154 For technical questions, please call 1-800-444-3353. PAGE 2
CONTENTS
SPECIFICATIONS.................................................................................... 3
GENERAL SAFETY WARNINGS AND PRECAUTIONS ........................ 3
Specic Product Warnings and Precautions .....................................................4
UNPACKING............................................................................................ 6
ASSEMBLY INSTRUCTIONS.................................................................. 6
TIRE INFORMATION .............................................................................. 18
Tire Terminology Glossary..................................................................................18
Tire Markings........................................................................................................19
Tire Ination and Load Limit...............................................................................20
TIRE CARE............................................................................................. 21
Checking Tire Pressure.......................................................................................21
Steps for Maintaining Proper Tire Pressure......................................................21
Tire Size ................................................................................................................22
Tire Tread..............................................................................................................22
Tire Rotation.........................................................................................................22
Tire Balance and Alignment................................................................................22
Tire Repair ............................................................................................................22
VEHICLE LOAD LIMIT ........................................................................... 23
Steps for Determining Correct Load Limit.........................................................23
INSPECTION, MAINTENANCE, AND CLEANING ................................ 23
Wiring Diagram.....................................................................................................24
PARTS LIST............................................................................................ 25
Assembly Diagram...............................................................................................26
REPORTING SAFETY DEFECTS .......................................................... 26
BEARING PACKING INSTRUCTIONS................................................... 27
SKU 90154 For technical questions, please call 1-800-444-3353. PAGE 3
SPECIFICATIONS
Maximum Capacity Payload 1,195 lb.
Bed Dimensions 4 Ft. x 8 Ft.
Hitch Ball Size 1-7/8”
Wheel Rim Diameter/Width 12” x 4”
Quantity Wheel Lug Nuts 4 Per Wheel
Tire Size 4.80 - 12
Required Tire Air Pressure 60 PSI, Cold
Overall Dimensions 110” L x 61-1/2” W x 19-1/4” H
Ship Weight / Net Weight 262 Lbs. / 252 Lbs.
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly, oper-
ating, inspection, maintenance and cleaning procedures, parts list and assembly diagram.
Keep your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep this manual and invoice in a safe and dry place for future reference.
GENERAL SAFETY WARNINGS AND PRECAUTIONS
Keep work area clean and dry. Cluttered, damp, or wet work areas invite injuries.1.
Keep children away from work area. Do not allow children to handle this product.2.
Store idle equipment. When not in use, tools and equipment should be stored in3. a dry location to inhibit rust. Always lock up tools and equipment, and keep out of
reach of children.
Do not use this product if under the inuence of alcohol or drugs. Read warning 4.
labels on prescriptions to determine if your judgement or reexes are impaired while
taking drugs. If there is any doubt, do not attempt to use this product.
Use eye protection. Wear ANSI-approved safety impact eye goggles when5. assembling this product.
Dress safely. Do not wear loose clothing or jewelry, as they can become caught in6. moving parts. Wear a protective hair covering to prevent long hair from becoming
caught in moving parts. If wearing a long-sleeve shirt, roll sleeves up above elbows.
Wearing safety work shoes is recommended.
Do not overreach. Keep proper footing and balance at all times to prevent tripping,7. falling, back injury, etc. REV 06k; 09b
SKU 90154 For technical questions, please call 1-800-444-3353. PAGE 4
Industrial applications must follow OSHA requirements.8.
Stay alert. Watch what you are doing at all times. Use common sense. Do not use9. this product when you are tired or distracted from the job at hand.
Check for damaged parts. Before using this product, carefully check that it will10. operate properly and perform its intended function. Check for damaged parts and
any other conditions that may affect the operation of this product. Replace dam-
aged or worn parts immediately.
Replacement parts and accessories: when servicing, use only identical replacement11. parts. Only use accessories intended for use with this product. Approved acces-
sories are available from harbor freight tools.
Maintain this product with care. Keep this product clean and dry for better and12. safer performance.
Maintenance: for your safety, service and maintenance should be performed regu-13.
larly by a qualied technician.
Use the right tool for the job. Do not attempt to force small equipment to do the14. work of larger industrial equipment. There are certain applications for which this
equipment was designed. It will do the job better and more safely at the capacity
for which it was intended. Do not modify this equipment, and do not use this equip-
ment for a purpose for which it was not intended.
WARNING:15. The warnings, precautions, and instructions discussed in this manual
cannot cover all possible conditions and situations that may occur. The operator
must understand that common sense and caution are factors, which cannot be built
into this product, but must be supplied by the operator.
Specic Product Warnings and Precautions
TO AVOID PERSONAL INJURY AND/OR PROPERTY DAMAGE, DO NOT EX-1. CEED THE TRAILER’S MAXIMUM CAPACITY PAYLOAD OF 1,195 POUNDS.
B2. EFORE EACH USE, ALWAYS EXAMINE THE TRAILER FOR PROPER TIRE
(19) CONDITION AND AIR PRESSURE, DAMAGED TAIL LIGHTS (28L, 28R),
DAMAGED SIDE RUNNING LIGHTS (24), LOOSE BOLTS AND NUTS, STRUC-
TURAL CRACKS, BENDS, AND ANY OTHER CONDITION THAT MAY AFFECT
ITS SAFE OPERATION. Do not use the Trailer even if minor damage appears.
NEVER ALLOW ADULTS, CHILDREN, OR PETS TO3. RIDE ON THE TRAILER.
BEFORE EACH USE, ALWAYS ATTACH THE SAFETY CHAIN (8) OF THE4. TRAILER TO THE TOWING VEHICLE. Make sure the Safety Chain is attached
to the towing vehicle with the equal length at each side. Do not allow the Safety
Chain to drag on the ground.
09b
SKU 90154 For technical questions, please call 1-800-444-3353. PAGE 5
ALWAYS CHECK TO MAKE SURE THE PAYLOAD BEING TRANSPORTED IS5. PROPERLY AND SAFELY SECURED IN THE TRAILER. Load the Trailer evenly
from side to side with 60% of the load forward of the Axle (16).
MAKE SURE THE TOWING VEHICLE IS CAPABLE OF TOWING THE TRAILER6. AND ITS PAYLOAD. Make sure the hitch on the towing vehicle is capable of towing
the Trailer and its payload. The towing capacity of the hitch is typically stamped
on the hitch drawbar.
MAKE SURE THE HITCH COUPLER (7) AND THE VEHICLE’S BALLHITCH (not7. included) ARE OF EQUAL MATING SIZE (1-7/8”) AND ARE RATED EQUAL TO
OR GREATER THAN THE WEIGHT OF THE TRAILER AND ITS PAYLOAD.
DO NOT EXCEED 45 MILES PER HOUR WHEN TOWING THE TRAILER.8. Excess
speed is a major cause of vehicle-trailer accidents.
THE TAIL LIGHT BULBS SUPPLIED WITH THIS TRAILER ARE FOR A 12 VOLT9. DC (NEGATIVE EARTH) ELECTRICAL SYSTEM ONLY. Do not attempt to power
the Light Bulbs with any other type or voltage electrical current.
WHENEVER POSSIBLE, PARK THE TRAILER ON A FLAT, LEVEL, PAVED,10. SURFACE AND CHOCK BOTH TIRES TO KEEP THE TRAILER FROM ACCI-
DENTLY MOVING.
BEFORE ATTEMPTING TO FOLD UP THE TRAILER, make sure it is on a at, 11. level, solid surface and chock both Tires (19).
BEFORE STANDING UP THE TRAILER, PROPERLY SECURE THE REAR AND12. FRONT SECTION TOGETHER (SEE INSTRUCTIONS ON PAGE 13).
NEVER ATTEMPT TO FOLD UP THE TRAILER WITHOUT THE HELP OF ONE13. OR TWO ABLE ASSISTANTS.
TRAILER LICENSING NOTICE:14. Some states may consider this Trailer a vehicle
requiring registration, licensing, and titling. Check with your State Department of
Motor Vehicles for information and guidance on registering, licensing, and titling
the Trailer.
MAINTAIN LABELS AND NAMEPLATES ON THE TRAILER.15. These carry im-
portant information. If unreadable or missing, contact Harbor Freight Tools for a
replacement.
SKU 90154 For technical questions, please call 1-800-444-3353. PAGE 6
UNPACKING
When unpacking, check to make sure all the parts shown on the Parts List (page
19) are included. If any parts are missing or broken, please call Harbor Freight Tools at
the number shown on the cover of this manual as soon as possible.
ASSEMBLY INSTRUCTIONS
Note: For additional references to the parts listed on the following pages, refer to the As-
sembly Diagram (page 20). Be sure to read the Bearing Packing Instructions
on the last page of this manual.
FACING FRONT OF TRAILER
FRONT
FIGURE A
1. On a at, level, surface, lay out one Front Left Side Rail (1FL), one Front Right Side
Rail (1FR), one Cross Member (2A), and two Cross Members (2B). Lay out two
Hinge Plates (10) and two Stake Clamps (25). Assemble the parts, using the 3/8”
x 3/4” Bolts (A), 3/8” Nylon Nuts (G) and also the 3/8” x 1” Bolts (B) and 3/8” Nylon
Nuts (G). (See Figure A.)
Attach the Left Connecting Rail (3L) and the Right Connecting Rail (3R) to the Front2. Left Side Rail (1FL) and Front Right Side Rail (1FR), using the 9/16” Bolts (E), 9/16”
Hex Nuts (I), and 1/8” Cotter Pins (P).
FRONT BED
SKU 90154 For technical questions, please call 1-800-444-3353. PAGE 7
FIGURE B
3. Insert the “L” Latches (9) through the Left Connecting Rail (3L), Right Connecting
Rail (3R), and Cross Member (2A). Secure the “L” Latches using the 1/8” R Pins
(Q). (See Figure B.)
Attach the Spare Tire Bar (4) to the Left Connecting Rail (3L) and the Right Con-4. necting Rail (3R), using the 3/8” Bolts (A) and 3/8” Nylon Nuts (G).
(See Figure B.)
Attach the “T” Plate (5) and Coupler Base (6) to the Left Connecting Rail (3L) and5. the Right Connecting Rail (3R), using the 3/8” Bolts (A) and 3/8” Nylon Nuts (G).
(See Figure B.)
REAR END OF TRAILER
TO CENTER OF TRAILER
FIGURE C
6. Lay out one Rear Left Side Rail (1RL), one Rear Right Side Rail (1RR), and three
Cross Members (2B). Lay out two Hinge Plates (11L, 11R) and two Stake Clamps
(25). Assemble the parts, using the 3/8” x 3/4” Bolts (A), 3/8” Nylon Nuts (G) and
also the 3/8” x 1” Bolts (B) and 3/8” Nylon Nuts (G).
(See Figure C.)
FRONT BED
REAR BED
SKU 90154 For technical questions, please call 1-800-444-3353. PAGE 8
REAR PORTION
FOLDED TRAILER
FRONT PORTION
FIGURE D
7. Assemble the front portion and the rear portion of the Trailer, using the 3/8” x 3/4”
Bolts (A), 3/8” Nylon Nuts (G). Then, fold the Trailer with assistance. (See Figure D.)
FIGURE E
8. With the Trailer in its folded position, attach the Spring Hanger (12L) to the Front
Left Side Rail (1FL), using 3/8” x 1” Bolts (B) and 3/8” Nylon Nuts (G). Attach the
Spring Hanger (12R) to the Front Right Side Rail (1FR), using 3/8” x 1” Bolts (B)
and 3/8” Nylon Nuts (G). (See Figure E.)
SKU 90154 For technical questions, please call 1-800-444-3353. PAGE 9
REV 06b
Attach the Caster Base (30L) to the Spring Hanger (12L), using 3/8” x 1” Bolts (B)9. and 3/8” Nylon Nuts (G). Attach the Caster Base (30R) to the Spring Hanger (12R),
using 3/8” x 1” Bolts (A) and 3/8” Nylon Nuts (G). (See Figure E.)
Attach the Casters (13) to the two Caster Bases (30L, 30R), using M8 Nylon Nuts10. (U). (See Figure E.)
FIGURE F
11. Attach the two Fender Support (23) to the two Caster Bases (30L, 30R), using the
3/8” Bolts (A) and 3/8” Nylon Nuts (G). Then attach the two Fenders (22) to the
two Fender Support, using the 3/8” Bolts (A) and 3/8” Nylon Nuts (G).
(See Figure F.)
Attach the two Springs (15) to the two Caster Bases (30L, 30R), using 9/16” x 3-1/4”12. Bolts (E) and 9/16” Hex Nuts (I). Leave these Bolts loose for now to allow proper
assembly in the next step. Insert a Cotter Pin (P) through the holes in the end of
the Bolts and spread the Cotter Pins. (See Figure F.)
Align the guide pin at end of axles through the Springs (15). Position the two Spring13. Plates (14) under the two Springs. Axle guide pins must be located in the center
hole of the Spring Plates (14). On each end of the Axle, insert two U-Bolts (17)
downward over the Axle and through the mounting holes in each of the two Spring
Plates. The Spring Plates may need to be adjusted slightly to allow the holes to
line up. Then secure the Axle and Spring assemblies, using 3/8” Spring Washers
SKU 90154 For technical questions, please call 1-800-444-3353. PAGE 10
REV 04g
(L) and 3/8” Nylon Nuts (G). After doing this, tighten the Bolts (E) and Nuts (I) left
loose in the last step. (See Figure F.)
FIGURE G
NOTE: PERIODICALLY, GREASE SEAL (32)
ON BACKSIDE OF HUB (18).
14. Attach the Grease Fitting (31) to the Hub (18). Carefully slide a Hub over the spindle
at each end of theAxle (16). Follow the directions on Bearing Packing below. Insert
the Outer Bearings (20) onto the spindles of both ends of the Axle. Insert the 3/4”
Flat Washer (N) onto each spindle of the Axle. Then secure the Hub and Bearing
assemblies, using the Castle Nuts (K). (See Figure G.)
BEARING PACKING INSTRUCTIONS
WARNING
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.
a. 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 appear clean.
b. Allow all pieces to dry completely.
c. Make sure that your hands are thoroughly clean and the bearing packer (not included)
is also thoroughly clean.
d. Place fresh, clean bearing grease in the packer.
e. With the grease-lled bearing packer in one hand and the bearing in the other,
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