HAUL MASTER 41005 User manual

Swing Back-1000 Lb.
Trailer Jack
Assembly & Operating Instructions
For technical questions and replacement parts, please call 1-800-444-3353.
www.HarborFreight.com
Copyright 1999 by Harbor Freight Tools®. All Rights Reserved.
No portion of this manual or any artwork contained herein may be reproduced in any
manner, shape or form without the express written consent of Harbor Freight Tools.
Model 4100541005
4100541005
41005

WeightCapacity: 1000 Lbs.
Minimum Height: 23”
MaximumHeight: 33-1/2”
LiftDistance: 10-1/4”
CasterWheel: 5-3/4”Hard Poly
SwivelCapacity: 360o
Material: Zinc-platedSteel
OverallDimensions: 11-1/4”Lx 6-1/4”W x 23”H
SPECIFICATIONS MODEL# 41005TRAILERJACK
FEATURESOFTHISTRAILER JACK
1. Strong Zinc-platedsteelconstruction,withhardpolycaster wheel.
2. Lockableswivelbaseforconvenienttowingandjacking.
3. Sidecrankmakesliftingtrailerveryeasy.
4. Casterwheeleasesmovingoftrailerwithouttowvehicle.
5. Enclosed screwforlow-maintenance.
6. Bolt-onmountingdoesnot requirewelding.
SAVE THIS MANUAL
You will need this manual for the safety warnings and cautions, assembly instructions, operating
procedures, maintenance procedures, trouble shooting, parts list, and diagram. Keep your invoice
with this manual. Write the invoice number on the inside of the front cover. Keep both this manual
and your invoice in a safe, dry place for future reference.
Page 2 SKU # 41005
NOTICE
The Warnings, Cautions, 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.
REV 07k

Page 3 SKU # 41005 REV 04b; 07j
SPECIALWARNINGS WHENUSING THISTRAILERJACK
Using this Jack may create special hazards.
Take particular care to safeguard yourself and those around you.
1. RollAway.Avoid situations which allowthetrailer to rollawayon the casterwheeland trailer
wheels.Ifusing the trailerjackon an incline,besureto chockthewheels.Never leave thetrailerunattended
whileonthejackifpossibilityof roll-away exists.
2. SwivelFailure.The swivel isvery strongand exceeds thestated capacityof the jack.However
abuse,corrosionor damage maycausetheswivel tobreak.Regularlyinspect the swivelfordamage, and
discontinueuseiftheswivel isdamaged.
3. LooseMountingPlatesorHardware.NeveroperatethisTrailer Jack ifthe mountinghardware
isnotsecureon the tongueofthe trailer.Regularlyinspect the hardwareforproperassembly.
4. Overloading. Neverattemptto liftorsupport loadsinexcess oftherated strengthofthisTrailer
Jack.Suddenfailureof theJackmayresult in seriouspersonalor property injury.
5. Swingupbeforedriving. Alwayscheck tobe sure thatthe Jack isproperly swungup into its
raisedpositionbeforedriving. Driving withtheJackloweredcan cause seriousdamagetoproperty.
6. Dollyingonunevensurfaces. TheCaster Wheelon this Jackmakes movingyour trailer withouta
vehicleconvenient.However,movingthetraileronunevenorsoftsurfacescouldcreateadynamicloading
conditionwheretheratedload capacity isexceeded;thisconditioncould possibly causefailure,property
damage,and/orinjury.
7. Notto be used for aircraft purposes.
NOTICE: No list of warnings can be all inclusive. The operator must
supply common sense, and operate this tool in a safe manner.
MAINTENANCE
If you discover any damage, repair or replace any damaged parts before using your Trailer Jack.
1. RegularlyinspecttheSwivelHandlespringsandlockingpinstobesurethey will properly engage
andlock the Jackin eitherup or downposition.
2. Keep theSwivelPlatelubricatedwithlightgrease.Inspectitregularlyfordamage.
3. KeeptheCrankmechanismandinner tube lightly greased.Assurethatthismechanismfunctions
smoothly.
4. InspecttheCaster Wheel Assembly regularly fordamage.Keeptheaxlelightlylubricated.
5. Check theMountingHardwareregularly to assuretheyaretight and theJackisfirmly attached to
thetrailertongue.
6. Inspect theentireunit forcorrosion which maybe caused byexposure to saltwater orweather.
Rinsethoroughlyandre-lubricateafterbeingimmersedinsaltwater.
7. Keep allmovingpartslightlylubricatedtopreventcorrosion.Ifcorrosiondevelops, you may paint
exteriorparts of the Jack toarrest andprevent further damage.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL AS A
REFERENCE TOOL ONLY: NEITHER THE MANUFACTURER NOR 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 A ND/OR DISTRIBUTOR EXPRESSLY STATES THATALL REPAIRS AND PARTS REPLACEMENTS
SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BYTHE 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.

Page 4 SKU # 41005
INSTALLATION
WARNING: The trailer tongue must be square or rectangular in profile for this Jack to mount
properly. A rounded tongue will allow the Jack to rotate to the side causing the trailer to fall
suddenly, causing potentially serious personal or property injury.
NOTE: Do not drill holes or otherwise damage the trailer tongue when installing this Jack. Failure
of the trailer tongue may result.
NOTE: Installing this Jack is most easily done with the Trailer mounted on the towing vehicle hitch.
1. Measure thetrailertongue for thebest location tomount the Jack.Remember that theJackmust not
interferewith theVehicleortrailer when turningorpassingover speedbumps,boatramps, etc.
2. Adjust theSwivelPlate so theJackis in thelowered position.
3. Hold theJackagainst the trailertongue, and usingthe Jack Handle(#9), lower theInnerTube (#6)
andCaster Wheel(#7) to the ground.
4. Using the(4) Hardware sets (#2) and(2) MountingBars (#5),attach the Jack to thetrailer tongue.
TheMountingBarsmustrun across (perpendicular) tothetrailertongue.NOTE:Youmay wish to
usesomeremovable thread lockingcompoundon theboltthreads to helpsecurethem.
5. Testthe operationoftheTrailer Jack.Makeadjustments if necessary.
6. Tightenthemountinghardwarefirmly.
OPERATION
Dismounting the trailer from the towing vehicle.
WARNING: Before dismounting, make sure the trailer wheels are properly chocked to prevent the
trailer from rolling.
1. Withthe trailer onthehitch,pull the SwivelHandle(#8),allowingthe Jack torotatedownwards.
WARNING: Keep your fingers away from the Swivel Plate area, and do not allow the caster to
strike your foot, as the Jack rotates downward.
2. Assure thattheSwivelHandle pins are inplace,lockingthe Jack intotheloweredposition.
3. Rotate theJack Handle (#9)counterclockwise tolower the Caster Wheel Assembly(#7) tothe
ground.Continuetocrankjust enough fortheTrailerJack to taketheweightofthe trailer.Thiswill
makeiteasiertodisengagethetrailerhitch.
4. Disengagethetrailerhitch.Remembertodisengage any safety chains,electricalconnectionsand
otherconnectionsbetweenthevehicleandthe trailer.
5. When thevehicleiscompletely clear, and it issafetodo so, drivethevehicleaway from thetrailer.
WARNING: Be sure to have a spoter watch this operation to be sure the trailer is clear of the
vehicle, and that the trailer does not roll away.
Using the Jack to mount the trailer to the towing vehicle.
WARNING: Do not attempt to lift the trailer tongue if it is too heavy for you.
NOTE: You may need assistance for some parts of this operation.
1. If thetrailertongueisrestingontheground,pulltheSwivelHandle(#8) allowing theTrailerJackto
rotate downward. Keep your fingers clear.
2. If youareable,liftthe trailer tongue,whiletheJack rotates intotheloweredposition.
3. Pull theSwivelHandleout,thenre-engage the pins, lockingtheJackintothelowered position.
4. Rotate theJackHandle(#9) clockwise toraisethetrailer to thelevelof the towingvehicle’shitch.
5. Have anassistantspot for youas you movethe vehicle closetothe trailer.Or, if onsmooth ground,
rollthetrailertothevehicle.
6. Mountthetrailerontothe towingvehicle’shitch.
7. TurntheJackHandlecounterclockwisetoraisetheJackslightly,transferringthetrailerweight
ontothetowingvehicle.
8. Pull outtheSwivelHandle,and rotate theJackintoitsupright position. Be surethattheSwivel
Handlelockingpinsare fullyengagedbeforedrivingaway.

MODEL#41005TRAILERJACK
Page 5 SKU # 41005
MODEL#41005 TRAILERJACKPARTS LIST
Part# Description
1 OuterTube
2 MountingHardware (4sets)
3 MountingPlate
4 SwivelPlate
5 MountingBar(2)
6 InnerTube
7 CasterWheelAssembly
8 SwivelHandle
9 Jackhandle
10 Plastic Cap
REV 01a; 04k
#10
A
B
C
Part# Description
A CrankshaftPlate
B GearPin
C Gear