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Owner’s Manual & Safety Instructions

Save This Manual

 

Keep this manual for the safety warnings and precautions, assembly, 

operating, inspection, maintenance and cleaning procedures.  Write the product’s serial number in the 
back of the manual near the assembly diagram (or month and year of purchase if product has no number). 
Keep this manual and the receipt in a safe and dry place for future reference. 

21b

When unpacking, make sure that the product is intact 

and undamaged.  If any parts are missing or broken, 

please call 1-888-866-5797 as soon as possible.

Copyright

©

 2021 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.  

Diagrams within this manual may not be drawn proportionally.  Due to continuing 

improvements, actual product may differ slightly from the product described herein.  

Tools required for assembly and service may not be included.

Read this material before using this product. 
Failure to do so can result in serious injury. 
SAVE THIS MANUAL.

Summary of Contents for Haulmaster

Page 1: ...rence 21b When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Copyright 2021 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 Diagrams within this manua...

Page 2: ...mbol to avoid possible injury or death Indicates a hazardous situation which if not avoided will result in death or serious injury Indicates a hazardous situation which if not avoided could result in death or serious injury Indicates a hazardous situation which if not avoided could result in minor or moderate injury Addresses practices not related to personal injury VDC Volts Direct Current a Ampe...

Page 3: ...or use this Trailer if under the influence of alcohol or drugs Read warning labels on prescriptions to determine if your judgement or reflexes are impaired while taking drugs If there is any doubt do not attempt to use this Trailer 3 Stay alert Watch what you are doing at all times Use common sense Do not setup or use this Trailer when you are tired or distracted from the job at hand 4 The tail li...

Page 4: ...ndling 1 Use the driving gear that the towing vehicle manufacturer recommends for towing 2 Drive at moderate speeds This will place less strain on your tow vehicle and trailer Trailer instability sway is more likely to occur as speed increases Do not exceed 45 miles per hour when towing the trailer 3 Avoid sudden stops and starts that can cause skidding sliding or jackknifing 4 Avoid sudden steeri...

Page 5: ...is important to make sure your vehicle does not become locked in Park because of extra load on the transmission 4 Before uncoupling a trailer a Place blocks at the front and rear of the trailer tires to ensure that the trailer does not roll away when the coupling is released b An unbalanced load may cause the tongue to suddenly rotate upward therefore before uncoupling place jack stands under the ...

Page 6: ...ge 26 note Finger tighten hardware first after assembly square and tighten hardware 1 On a flat level surface lay out Front Right Side Rail 37 Front Left Side Rail 26 Front Cross Member 39 and 2 Cross Members 32 Lay out 2 Front Hinge Plates flat 27 and 4 Stake Brackets 40 Assemble XVLQJ VHWV RI ROWV 0 DQG 1XWV 0 assemble so that these brackets are angled inward FrOnt OF traiLEr CEntEr OF traiLEr 3...

Page 7: ...On 5 With assistance turn the assembly over 6 Attach Tow Bar Brackets 45 to Front Left and Right Side Rails using 4 sets of Hex Bolts M10x30 and Nuts M10 36 note Finger tighten hardware first after assembly square and tighten hardware 7 Place Tow Bars 5 into brackets on Front Cross Member and Side Rails 8 6HFXUH 7RZ DUV XVLQJ VHWV RI ROWV 0 DQG 1XWV 0 DQG VHWV RI 3LQV DQG 5 OLSV 9 Attach Tow Bar T...

Page 8: ...nder assemblies to left and right Spring Hangers using four sets of ROWV 0 DQG 1XWV 0 44 44 25 24 16 Attach Springs 8 to left and right Spring Hangers with spring eyes facing forward XVLQJ VHWV RI ROWV 0 DQG 1XWV M12 20 Leave these Bolts loose temporarily to allow proper assembly in the next steps 17 Place Axle 7 on top of Springs Align depressions on Axle with protrusions on Springs 18 Remove nut...

Page 9: ...2 Place Tire and Washer on Axle 23 Thread Castle Nut onto Axle until tire starts spinning with slight resistance then back off slightly and line up gaps in Castle Nut with holes in Axle 24 Insert Cotter Pin 16 through Castle Nut and Axle Bend pins in opposite directions to secure tire 25 Repeat on other side 26 Replace Dust Caps tapping with rubber mallet to seat them 27 Lubricate zerk fittings on...

Page 10: ...rigger using its Locking Pin and R Clip 32 Attach Light Brackets 33 to Rear Side Rails using four sets of Bolts M10x20 and Nuts M10 44 33 Remove nuts from back of Right Tail Light 30R Attach Right Tail Light to Right Light Bracket secure with nuts 34 Remove nuts from back of Left Tail Light 30L Attach License Plate Bracket 29 along with Left Tail Light to Left Light Bracket secure with nuts 35 Run...

Page 11: ...t Right Side Rail Then split the yellow brown wires from the green brown wires 8 Run the yellow brown wires along the inside of the Front Cross Member to the Side Running Light on the Front Left Side Rail Run the green brown wires along the inside of the Front Right Side Rail to the other Side Running Light 9 Connect the wire lead from the two Side Running Lights to the brown wire on each side of ...

Page 12: ...e clip right light Green lead Wired same as left side KEy COLOr CODES Brown tail and side marker lights Green right directional and stop light yellow Left directional and stop light White Ground to trailer frame indicates wire nut connection Left light yellow lead Brown yellow yellow Green Brown note Some trailer tail lights will have two leads instead of three They connect to the harness leads th...

Page 13: ...8 x1 3 4 Bolt not included f Qty 8 3 8 x2 3 8 Bolt not included g Qty 48 3 8 x2 3 8 Bolt not included h Qty 72 3 8 Spring Washer not included i Qty 112 3 8 Flat Washer not included j Qty 72 3 8 Nut not included 1 Cut the Stakes Front End Rails Back End Rails and Side rails to the sizes indicated in and drill 3 8 diameter mounting holes where shown 3 8 DiaMEtEr 2 1 6 0 75 0 7 5 3 8 DiaMEtEr 1 25 1 ...

Page 14: ...the Stake Brackets of the Trailer using 3 8 x2 3 8 Bolts 3 8 Spring Washers and 3 8 Nuts 5 Attach the Connecting Plates to the Side Rails and Front End Back End Rails using 3 8 x1 3 4 Cross Head Bolts and 3 8 Nuts note For quick folding purposes you may not want to bolt down the Stakes permanently to the Stake Brackets of the Trailer 3 8 nUt 3 8 SprinG WaSHEr 3 8 FLat WaSHEr 3 8 x 1 3 4 CrOSS HEaD...

Page 15: ...luded d Qty 24 30 3 8 Spring Washers not included e Qty 24 30 3 8 Nuts not included 1 Drill 3 8 mounting holes 2 Use 3 8 Cross Head Bolts 3 8 Flat Washers 3 8 Spring Washers and 3 8 Nuts to secure the Plywood bed to the Trailer frame 48 48 48 48 48 48 48 48 9 29 9 29 9 29 9 29 13 96 13 96 14 35 14 35 8 9 8 9 0 75 0 75 4 37 4 37 4 37 4 37 13 96 13 96 13 96 13 96 4 37 4 37 4 37 4 37 18 9 18 9 18 9 1...

Page 16: ...iler jack tongue support and any attached stabilizers sold separately are raised and locked in place 8 Check load distribution to make sure the tow vehicle and Trailer are properly balanced front to back and side to side 9 Check side and rear view mirrors to make sure you have good visibility 10 Check routes and restrictions on bridges and tunnels 11 Make sure you have wheel chocks and jack stands...

Page 17: ...moving This adjustment should be done by two people If the Adjusting Nut is too tight the Handle will not lock 6 After the Adjusting 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 firmly to make sure the Trigger is locked in place and the Handle cannot move replace the Locking pin and r Clip 7 Attach the Safety Ch...

Page 18: ... 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 occ...

Page 19: ...rs 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 lo...

Page 20: ...ire 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 inflation pressure This number is the greatest amount of air pressure that should ever be put in the tire under normal driving conditions tire inflation and Load Limit tire and Loading in...

Page 21: ... placard certification label or in the owner s manual This Trailer has 80 PSI recommended cold tire inflation 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...

Page 22: ...ble to maintain traction properly and stopping distance will be increased significantly Operation Safety note Selected recommendations in this section are adapted from TOWING A TRAILER Being Equipped for Safety published by NHTSA For full details see that document 1 This Trailer is not a toy Do not allow children to play on or near this item 2 Take time to practice before driving on main roads 3 N...

Page 23: ...ibility you may need when backing up have someone outside at the rear of the trailer to guide you whenever possible 4 Use slight movements of the steering wheel to adjust direction Exaggerated movements will cause greater movement of the trailer 5 If you have difficulty pull forward and realign the tow vehicle and trailer and start again parking 1 Try to avoid parking on grades 2 If possible have ...

Page 24: ...ll of the following instructions completely will void the warranty and can result in damage to the trailer property damage or serious injury 2 EVEry 20 000 MiLES OF USE clean and repack bearings a Using a suitable solvent thoroughly clean bearings and the rest of the parts in Hub Assembly of all grease dirt metal shavings or any other foreign object parts must be cleaned even if they are new or ap...

Page 25: ...ded Distribute the rope around all sides of the rear and front section to hold them together while the trailer is folded up 5 With assistance remove wheel chocks and carefully tilt the Trailer onto its Casters When tilting the Trailer always apply pressure on the middle section where the rear and front section are secured together Do not maneuver the trailer with the tow Bars CaUtiOn While tilting...

Page 26: ... 1 42 Hex Bolt M12x25 and Nut M12 2 43 L Pin Ø12x75 and R Clip 2 44 Hex Bolt M10x20 and Nut M10 78 45 Tow Bar Bracket 2 46 Screw and Nut 4 parts List and Diagram pLEaSE rEaD tHE FOLLOWinG CarEFULLy THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY ...

Page 27: ...l 1 888 866 5797 Item 58703 SaFEty OpEratiOn MaintEnanCE aSSEMBLy assembly Diagram 1 2 29 30L 31 32 33 28 27 26 25 24 23 22 21 19 20 17 18 11 14 15 16 13 12 11 10 9 6 8 7 20 44 3 4 44 5 43 40 42 39 30R 32 32 32 46 38 36 36 37 34 35 35 33 41 45 ...

Page 28: ...ip 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 spec...

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