3500 lb. capacity ElEctric trailEr jack - Harbor Freight Toolsmanuals.harborfreight.com/manuals/67000-67999/67597.pdf · 3500 lb. capacity ElEctric trailEr jack ... the working conditions

3500 lb. capacity ElEctric trailEr jack

67597SEt up and OpErating inStructiOnS

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© 2010 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.

For technical questions or replacement parts, please call 1-800-444-3353.

Page 2For technical questions, please call 1-800-444-3353.SKU 67597

SaVE thiS manualKeep 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.

impOrtant SaFEty inFOrmatiOn

in this manual, on the labeling, and all other information provided with this product:

this is the safety alert symbol. it is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

dangEr indicates a hazardous

situation which, if not avoided, will result in death or serious injury.

Warning indicates a

hazardous situation which, if not avoided, could result in death or serious injury.

cautiOn, used with the safety

alert symbol, indicates a hazardous situation which, if

not avoided, could result in minor or moderate injury.

nOticE is used to address practices

not related to personal injury.

cautiOn, without the safety alert

symbol, is used to address practices not related to personal injury.

general tool Safety Warnings Warning read all safety warnings and instructions. Failure to follow the warnings and instructions may result in serious injury. Save all warnings and instructions for future reference. The term ″tool″ in the warnings refers to your Electric Trailer Jack.

Work area safety1.

keep work area clean and well lit. Cluttered or dark areas invite accidents.

personal safety2. Stay alert, watch what you are a. doing and use common sense when operating a tool. do not use a tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating tools may result in serious personal injury.use personal protective b. equipment. always wear eye protection. Safety equipment such as non-skid safety shoes or a hard hat used for appropriate conditions will reduce personal injuries.


do not overreach. keep proper c. footing and balance at all times. This enables better control of the tool in unexpected situations.dress properly. do not wear d. loose clothing or jewelry. keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.

tool use and care3. do not force the tool. do not a. attempt to lift more than the 3,500 lb. maximum lifting capacity of this tool. The correct tool will do the job better and safer at the rate for which it was designed.Store idle tools out of reach of b. children and do not allow persons unfamiliar with the tool or these instructions to operate it. Tools are dangerous in the hands of untrained users.maintain tools. check for c. misalignment or binding of moving parts, breakage of parts and any other condition that may affect the tool’s operation. if damaged, have the tool repaired before use. Many accidents are caused by poorly maintained tools.use the tool and accessories d. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the tool for operations different from those intended could result in a hazardous situation.

Service4. have your tool serviced by a a. qualified repair person using only

identical replacement parts. This will ensure that the safety of the tool is maintained.

Specific Safety WarningsDo not exceed 3500 Lb. capacity.1.

Do not use Crank while power lift is in 2. use.

Use on flat, level, hard surface 3. capable of supporting load.

Wear ANSI-approved safety goggles 4. during use.

Prevent trailer wheels from moving by 5. using wheel chocks while raising or lowering.

Before towing, fully raise trailer jack 6. and secure properly.

Keep out from under jack and tongue 7. when applying and releasing load, when jack is supporting load, or when moving trailer.

Inspect before use. Do not use if 8. parts are loose or damaged.

Use in accordance with the 9. Department of Transportation (DOT) regulations. Information about DOT regulations can be found at www.dot.gov/regulations.html

Read manual before installation and/10. or use.

Maintain labels and nameplates on 11. the tool. These carry important safety information. If unreadable or missing, contact Harbor Freight Tools for a replacement.

This product is not a toy. Keep it out 12. of reach of children.


Not for aircraft purposes.13.

Trailer Jack must always be retracted 14. when towing the trailer.

The warnings, precautions, 15. and instructions discussed in this instruction manual cannot cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator.

SaVE thESE inStructiOnS.

SpEciFicatiOnSWeight Capacity 3,500 lb.

Motor 12 VDC, 11.5 A

Travel Length 17 3/4”

LIft Range 8-1/2” - 26-1/4”

Application For use with A-frame trailersHardware (sold separately)

3 bolts 3/8”D (grade 5 or better), 3 lock nuts, 6 washers

unpackingWhen unpacking, make sure item

is intact and undamaged. If parts are missing or broken, call Harbor Freight Tools at 1-800-444-3353.

cOmpOnEntS


SEt up inStructiOnS read the EntirE impOrtant

SaFEty inFOrmatiOn section at the beginning of this manual including all text under subheadings therein before set up or use of this product.

note: For additional information regarding the parts listed in the following pages, refer to the Assembly Diagram near the end of this manual.

mountingThis Electric Jack is designed to replace an existing manual-only trailer jack. Check that the Outer Tube (33) of the Electric Jack will fit into the existing jack location and that the Mounting Plate holes align with the bolt locations on your trailer. Modify the trailer as needed.

Block the wheels and support the 1. trailer A-Frame securely using jack stands (sold separately).

Remove the existing jack. 2.

Figure 2

Footpad (36)

Outer Tube (33)

Inner Tube (34)

Lock Pin (35)

3. Remove the Lock Pin (35) and slide out the Footpad (36) from the Jack.

Insert the bottom section of the Outer 4. Tube (33) into the A-Frame jack opening so that the Motor Housing is toward the front of the trailer and the Mounting Plate holes line up with the bolt holes in the trailer.

To secure the Mounting Plate to 5. the A-Frame, use nuts, bolts and washers (all sold separately) as listed under Hardware in the Specifications chart (previous page). The bolts need to be long enough to fit through the jack flange and the trailer, with enough room for two washers and the lock nut. Slide a washer onto each bolt then insert them from the top side and attach a flat washer and lock nut from the underside of the frame.

Replace the Footpad and insert the 6. Lock Pin.

WiringThe Jack needs to be properly wired for use. Have a qualified technician

Insert Jack into trailer opening


perform the wiring if you are not familiar with the following procedures.

This jack is internally grounded. For 1. added safety, connect the 10-gauge grounding wire (the shorter wire) to a good bare metal ground on the trailer.

To wire the Jack to battery power:2. If wiring to the trailer battery, connect a. the positve wire (the longer wire) to the positive (+) battery terminal and include an ON/OFF switch in the wiring so you can turn off power to the unit.If wiring to the vehicle battery, route b. a 10-gauge wire (sold separately) from the positive (+) terminal of a 12VDC battery to a location near the Jack. Attach the female side of a quick connect (sold separately) to the end of the wire and the male side to the positive Jack wire (the longer wire). Plug the quick connect sections together.

OpErating inStructiOnS read the EntirE impOrtant

SaFEty inFOrmatiOn section at the beginning of this manual including all text under subheadings therein before set up or use of this product.

Mount and dismount Trailer only on 1. smooth, level surfaces.

Block the trailer wheels to prevent the 2. trailer from rolling.

Figure 4

Footpad (36)

Outer Tube (33)

Inner Tube (34)

Lock Pin (35)

3. Remove the Lock Pin (35).

if using the jack with electric 4. power:If wired to the vehicle battery, plug a. the Jack wire into the quick connect. If wired to the trailer battery, turn on the ON/OFF switch.If needed, turn on the LED lights b. (26) using the Light Switch (15).

note: The LED lights will only work when the Jack wiring is powered.Check that the Switch Cover (6) is c. secured over the Power Switch (4).

Figure 5

Extend Jack

Retrack Jack Release

toStop

Front of Trailer

PowerSwitch

(4)

d. To extend the Jack, which will raise the trailer, pull the Power Switch (4) away from the Jack.


To retract the Jack, which will lower e. the trailer, push the Power Switch toward the Jack.To stop the Jack, release the Power f. Switch.

cautiOn: Release the Power Switch when the motor slows, or switches off, to prevent damage to the motor. Wait 15 seconds for the motor to reset before operating the Jack again.

if using the jack manually:5. Disconnect power to the Jack.a.

Remove the Cap (22) on the top of b. the Jack to access the Drive Collar (12).Insert the Crank (30) onto the Drive c. Collar. Rotate the Crank clockwise to retract d. the Jack, lowering the trailer, and counterclockwise to extend the Jack, raising the trailer.

Figure 7

Footpad (36)

Outer Tube (33)

Inner Tube (34)

Lock Pin (35)

Insert LockPin here

6. Adjust the level of the Jack so that the hole in the Inner Tube (34) lines up with one of the Footpad holes.

Insert the Lock Pin through the holes.7.

When finished raising or lowering the 8. trailer:If using with electric power, a. disconnect power to the Jack.If using the Jack manually, remove b. the Crank and replace the Cap. Store the Crank in a safe place for future use.


maintEnancE and SErVicing

Procedures not specifically explained in this manual must be performed only by a qualified technician.

tO prEVEnt SEriOuS injury

FrOm tOOl FailurE: do not use damaged equipment. if abnormal noise or vibration occurs, have the problem corrected before further use.

cleaning and maintenancebEFOrE Each uSE,1. inspect the general condition of the Jack. Check for loose hardware, misalignment or binding of moving parts, cracked or broken parts, and any other condition that may affect its safe operation.

aFtEr uSE,2. wipe external surfaces of the tool with a clean cloth.

lubricationAnnually lubricate the Gears, Jack Screw and Nut.

Prepare the Jack as follows:Support the weight of the trailer so a. the Jack is not providing support.Fully extend the Footpad so the b. Lock Pin is in the fourth hole from the bottom of the Footpad.Adjust the Jack so that the foot pad c. is 2” off the ground.

lubricating gears

Unthread the four Screws (3) on the a. top of the Housing Cover (21) and remove the Housing Cover.If needed repack gears with lithium b. based machine grease.Replace the Housing Cover and c. secure the screws in place.

lubricating jack Screw and nut

Unthread the four Socket Head Bolts a. (43) on the Outer Tube (33) with a 1/4” hex wrench (sold separately).Pull the motor head away from the b. Outer Tube.Clean and regrease the Jack Screw c. (37) and Drive Collar (12) with lithium based grease.Reassemble and tighten the pieces d. together.


Wiring diagram


plEaSE rEad thE FOllOWing carEFullyTHE 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 OF ANy KIND TO THE BUyER THAT HE OR SHE IS qUALIFIED TO MAKE ANy REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS qUALIFIED TO REPLACE ANy PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR ExPRESSLy STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN By CERTIFIED AND LICENSED TECHNICIANS, AND NOT By THE BUyER. THE BUyER ASSUMES ALL RISK AND LIABILITy ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.

partS liStpart description Qty

1 Motor 12 Motor Housing 13 Screw #8-32 x 1/2” 84 Power Switch 15 Switch Housing 16 Switch Cover 17 Screw #5-40 x 3/8” 48 Bolt 3/8 -16 x 1 29 Circuit Breaker 1

10 Grommet 111 Pin 212 Drive Collar 113 Washer 114 Bearing 115 Light Switch 116 Bushing 5/8ID x 7/8OD 117 Washer 118 Pin 119 Lock Washer 120 Socket Head Screw 1/4 x 5/8 121 Housing Cover 1

part description Qty22 Cap 123 Main Gear Drive 124 Pinion Gear 125 Pinion Key 126 LED Light 227 Spur Gear 128 Main Gear Housing 129 Bushing 3/8ID x 1/2OD 130 Crank 133 Outer Tube 134 Inner Tube 135 Lock Pin 2-1/2” 136 Footpad 137 Jack Screw 138 Nut 139 Washer 13/16” 840 Pin-Cotter 241 Nut Cost 142 Lock Washer 5/16” 443 Socket Head Bolt 5/16” x 1” 4


aSSEmbly diagram

record product’s Serial number here: note: If product has no serial number, record month and year of purchase instead.

note: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.


limitEd 90 day WarrantyHarbor 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 verifies 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 specific legal rights and you may also have other rights which vary from state to state.

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

Documents

3500 lb. capacity ElEctric trailEr jack - Harbor Freight Toolsmanuals.harborfreight.com/manuals/67000-67999/67597.pdf · 3500 lb. capacity ElEctric trailEr jack ... the working conditions