Central Hydraulics 93033 User manual

3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit ourWeb site at http://www.harborfreight.com
For technical questions and replacement parts, please call 1-800-444-3353
Copyright©2005 by Harbor FreightTools®. Allrights reserved.Noportion of this
manual or any artwork contained herein may be reproduced in any shape or
form without the express written consent of Harbor FreightTools .
ATV MOTORCYCLE JACK
1500 LB. CAPACITY
ASSEMBLY and OPERATING
INSTRUCTIONS
R
93033

Page 2SKU 93033 For technical questions, please call 1-800-444-3353.
Specifications
Save This Manual
You will need the manual for the safety warnings and precautions, assembly instructions,
operatingandmaintenance procedures, parts list anddiagram. Keepyourinvoice with this
manual. Write the invoice number on theinsideofthe front cover. Keep themanualand
invoiceinasafe and dry place for futurereference.
Safety Warnings and Precautions
WARNING: When using this product, basic safety precautions should always be fol-
lowed to reduce the risk of personal injury and damage to equipment.
Read all instructions before using this product!
1. Keep work area clean. Cluttered areas invite injuries.
2. Observe work area conditions. Do not use ATV Motorcycle Jack in damp or wet
locations. Don’t expose to rain. Keep work area well lighted.
3. Keep children away. Children must never be allowed in the work area. Do not let them
play with the ATV Motorcycle Jack.
4. Store idle equipment. When not in use, ATV Motorcycle Jack must be stored in a dry
location to inhibit rust. Always lock up ATV Motorcycle Jack in a secure location, out of
reach of children.
5. Use the right tool for the job. Do not attempt to force a small product or attachment to
do the work of a larger industrial product. There are certain applications for which this
productwasdesigned. It will do thejobbetterandmore safely at therateforwhich it was
intended. Do not modify this product and do not use this product for a purpose for which
it was not intended.
6. Dress properly. Do not wear loose clothing or jewelry as they can be caught in moving
parts. Protective, electrically non-conductive clothes and non-skid footwear are
recommended when working. Wear restrictive hair covering to contain long hair.
7. Use eye protection. Always wear ANSI approved impact safety goggles.
8. Do not overreach. Keep proper footing and balance at all times. Do not reach over or
across running machines.
9. Maintain tools with care. Keep ATV Motorcycle Jack clean for better and safer
performance. Follow instructions for lubricating and changing accessories. Inspect the
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Page 3SKU 93033 For technical questions, please call 1-800-444-3353.
ATV Motorcycle Jack periodically, and if damaged, have it repaired by an authorized
technician.The handle and pedals must be kept clean, dry, and free from oil and grease
at all times.
10. Stay alert. Watch what you are doing, use common sense. Do not operate the ATV
Motorcycle Jack when you are tired.
11. Check for damaged parts. Before using any product, any part that appears damaged
should be carefully checked to determine that it will operate properly and perform its
intended function.Check for alignment and binding of moving parts;any broken parts or
mountingfixtures;andanyother conditionthatmayaffectproper operation.Anypartthat
is damaged should be properly repaired or replaced by a qualified technician. Do not
use this product if the Lifting Frame (2) doesn’t work properly.
12. Replacement parts and accessories. When servicing, use only identical replacement
parts. Use of any other parts will void the warranty. Only use accessories intended for
use with this tool.
13. Do not operate ATV Motorcycle Jack if under the influence of alcohol or drugs.
Read warning labels on prescriptions to determine if your judgment or reflexes are
impaired while taking drugs. If there is any doubt, do not operate the ATV Motorcycle
Jack
14. Maintenance. Foryoursafety,maintenance should be performed regularly byaqualified
technician.
Additional Safety Warnings and Precautions
1. Only operate this product on a flat, dry, level surface, capable of supporting the weight of
this product and the load.
2. Do not attempt to lift equipment greater than the 1500 Lbs.maximum capacity.
3. Always use good quality hydraulic oil in the Jack. Do not mix various oils, and when
filling the Jack, make sure no dirt or debris enters the hydraulic system.
4. Once a load is elevated, do not move the ATV Motorcycle Jack. The wheels on this
product are designed to move the ATV Motorcycle Jack without a load.
5. Always engage the Stop Bars (33 and 35) when lifting a vehicle. See FIGURE 2 on
page 5.
6. Lower the load slowly, in a controlled fashion. Never allow the load to drop quickly.
7. Never allow anyone to ride on this product when it is being raised, lowered, or while
holding a load.
8. Keep fingers and hands away from the Lift Arms (4 and 6) when raising or lowering.
Keep onlookers and children a safe distance during operation.
9. Use tie-down straps (not included) to secure the load.
10. This is a temporary lifting device only. It is not designed to support loads for extended
periods of time.
11. Before each use, check for hydraulic oil leaks; never operate the Lift if leaks are present.

Page 4SKU 93033 For technical questions, please call 1-800-444-3353.
Assembly
See the Assembly Drawing on page 10.
Mounting the Jack into the Lifting Frame.
1. Being careful not to damage the Release Pedal (26), secure the Jack (36) to the Jack
Mounting Plate with two Bolts (34). See FIGURE 1 and the Assembly Drawing.
2. Place the upper end of the Jack’s ram into the Lifting Frame (2), securing it with a Pin
with Spring Attached (39).
12. Never drop a load onto the Lift, may create for a brief instant, an excess load, which may
result in damage to the product and/or personal injury.
13. Not to be used for any aircraft purposes.
14. Always center the load on the Saddle Platform (5). Make sure the Platform does not
damage the motorcycle.
Warning:The warnings, cautions,and instructions discussed in this instruction manual
cannot cover all possible conditions and situations that may occur. It must be under-
stood by the operator that common sense and caution are factors which cannot be
built into this product,but must be supplied by the operator.
Jack Mounting Plate
Release Pedal (26)
Foot Pedal (24)
Spring (41)
FIGURE 1
Jack (36)
Lifting Frame (2)
Pin with Spring
Attached (39)
Hidden From View
Unpacking
When unpacking, check to make sure the parts listed on pages 7 and 9 are included.
If any parts are missing or broken, please call Harbor Freight Tools at the number on the
cover of this manual as soon as possible.

Page 5SKU 93033 For technical questions, please call 1-800-444-3353.
Assembly (continued)
Mounting the Lifting Frame into position.
1. Position the Stop Bar (3) and Lifting Frame (2) as shown in theAssembly Drawing, so
that the holes on the arms of both the Stop Bar (3) and Lifting Frame (2) line up with
the holes on the welded tabs on the Rear
Lift Arms (4). Place Pins (28) through the
Lifting Frame (2), theTabs, Bushings (32), and Stop Bar (3).
Please note:The Bushings fit around the Bolts and inside the Stop Bar.
Installing the Pedal, Spring, and Handle.
1. Loosen and removethe screwthat holds intheFoot Pedal (24). Insert the Foot Pedal
(24) into the receiver of the Jack (36). Use the screw you loosened from the pedal
assembly to secure the Foot Pedal (24) into the receiver of the Jack.
2. Insert the Handle (1) into the receptacle ontheLifting Frame (2) and secure it withthe
Bolt (27).
Testing the Stop Bar (33 and 35).
TheStop Bar (33 and 35) must belockedinone of the fourpositionsafter lifting a load.
Not engaging the Stop Bar (33 and 35) may result in serious injury or death, and damage the
Lift. Before each use, check that the lower tips of the Stop Bar (33 and 35) fit behind the
notches on the both sides of the Frame Base (11). See FIGURE 2.
FIGURE 2
Lower tip of the Stop
Bar (33 and 35)
Notches on Frame Base (11)
2. Secure the Bolts with Washers (29 and 30) and Spring Pin (38).

Page 6SKU 93033 For technical questions, please call 1-800-444-3353.
Operation
Warning!! Never work on a vehicle that is on the ATV Motorcycle Jack, or leave it unat-
tended, if the Stop Bar (33 and 35) is not in place, or the Lock Bolts (37) are not engaged
(lifting the casters off of the ground).
Note: Keep fingersandhands awayfromthe Lift Arms (4 and 6) when raising or lowering the
Lift. Keep onlookers and children a safe distance from the Lift during operation.
Raising the Lift.
Note: Use a second person to assist, if needed.
1. Use the Handle (1) to roll this product and position it next to the load you wish to lift. To
lower the lift so it will fit under the load, gently depress the Release Pedal (26).
Note: Check the load manual for recommended lifting points.
2. Once positioned under the load at the correct lifting points, turn the Lock Bolts (37) until
they contact the ground and lift the Swivel Casters (20) slightly off of the ground, to keep the
lift from rolling.
3. Use tie-down straps (not included) to secure the load. Repeatedly depress the Foot
Pedal (24) slowly, to raise the Saddle Platform (5).When the lift makes contact with the load,
makesuretheload sits evenly on thetwoSaddle Platform (5) beforeraising the load off of the
ground. If the load is not evenly distributed on the Saddle Platform (5) and it not secured in
place with tie-down straps, it may fall from the Saddle Platform (5), resulting in possible per-
sonal injury and property damage.
4. Continuetoraisethe lift until you reachthedesiredheight.DisengagetheStop Bar (3) from
the spring. You must lock the lift at one of the four locking positions with the Stop Bar (3). See
FIGURE 2.
5. This is a lifting device only.It is not designed to support loads for extended periods of
time. Do not work directly under the ATV lift.
Lowering the ATV Motorcycle Jack.
Note: Remove all tools from under the lift before lowering.
1. Depress the Foot Pedal (24) slowly to raise the lift enough to disengage the Stop Bar (3).
Lift it up and attach it to the spring.
2. Make sure everyone is clear and slowly depress the Release Pedal (26) to lower the lift.
NOTE:The Rear Pedal is designed with a SafetyValve, so it needs to be pressed down
only part way to lower the load. Once the load is on the ground, remove the tie-down straps
(not included). When the lift is clear of the load, turn the Lock Bolts (37) until they are clear of
theground,allowingtheSwivel Casters (20) tofirmlycontact the ground. Roll the ATV Motor-
cycle Jack clear of the load. Maintenance
1. Keep yourATV Motorcycle Jack dry,protecting it from wet,corrosiveenvironments.
2. Periodicallylubricate the Jack’s moving parts.
3. Periodicallycheckthat all of the Jack’shardwareissecurely fastened.
IftheJack does notwork to full capacity,youmayhaveairinthehydraulicsystem.

Page 7SKU 93033 For technical questions, please call 1-800-444-3353.
When ordering parts from this list, add the suffix “a” to the number.
Jack (36) Parts List A
PartNo. Description Qty. PartNo. Description Qty.
1a Ram Cap 1 21a Spring 1
2a Ram 0-ring 1 22a Screw 1
3a Top Sealing Gasket 2 23a 0-ring 1
4a Ram Assembly 1 24a Screw 1
5a Ram Gasket 1 25a Ball 3
6a 0-ring 1 26a Spring Plunger 1
7a Cylinder 1 27a Spring 1
8a Lower Sealing Gasket 1 28a Screw 1
9a Oil Reservoir 1 29a Washer 1
10a Oil Filler Plug 1 30a Screw 1
11a Pedal ReleaseValve 1 31a Lower Sealing Gasket 1
12a Pin 1 32a Washer 1
13a ReleaseValve Rod 1 33a Lower Spring Retainer 1
14a 0-ring 1 34a Pump Cylinder 1
15a ReleaseValve Pin 1 35a 0-ring 1
16a Base 1 36a Seal 1
17a Split Cotter Pin 4 37a Piston Rod 1
18a Pin 3 38a Link 1
19a Steel Ball 1 39a Handle Socket 1
20a Spring Plunger 1 40a Top Spring Retainer 1
41a Spring 1
Bleeding and filling the Jack with hydraulic oil.
1. PlacetheLift on a flat,level,solidsurface.
2. If just filling the Jack, open the Oil Filler Plug (10a) and check the oil. Fill to the top of the
Oil Reservoir (9a) with a high quality hydraulic oil if necessary.
3. If bleeding, with the Oil Filler Plug (10a) removed, use one foot to step on and keep the
Release Pedal (26) down, while you quickly pump the Foot Pedal (24) ten times. This will
bring all the air out ofthesystem. Continuepumpinguntilnomoreairbubbles appear. Filltothe
topof the Oil Reservoir (9a) witha high quality hydraulicoil if necessary. Repeat if necessary.
4. Replace the Oil Filler Plug (10a) .
5. Test the Jack. Make sure it is functioning properly before attempting to lift another load.
Pump the Foot Pedal (24) up and down several times, and test the Release Pedal (26) to
make sure it is working properly; if not, repeat the above process. If the lift continues to func-
tion improperly, have a qualified service technician check the product.
Maintenance (continued)

Page 8SKU 93033 For technical questions, please call 1-800-444-3353.
Jack (36) Assembly Drawing A
When ordering parts from this diagram, add the suffix “a” to the num-
ber.

Page 9SKU 93033 For technical questions, please call 1-800-444-3353.
NOTE: Some parts are listed and shown for illustration purposes only and are not available indi-
viduallyasreplacementparts.
PLEASEREADTHEFOLLOWINGCAREFULLY
THEMANUFACTURERAND/ORDISTRIBUTORHASPROVIDEDTHEPARTSDIAGRAMINTHIS
MANUALASAREFERENCETOOLONLY. NEITHERTHEMANUFACTURERNORDISTRIBUTOR
MAKES ANY REPRESENTATION OR WARRANTY OF ANY KINDTO THE BUYERTHAT 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/ORDISTRIBUTOREXPRESSLYSTATESTHATALLREPAIRSANDPARTSREPLACEMENTS
SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSEDTECHNICIANS AND NOT BYTHE
BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER
REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTSTHERETO, OR ARISING
OUTOFHIS OR HER INSTALLATION OFREPLACEMENT PARTSTHERETO.
Parts List
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11esaBemarF123gnihsuB2
21tloB433raBpotStfeL1
31rehsaW443tloB2
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61tloB273tloBkcoL2
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81rehsaW293dehcattAgnirpShtiwniP1
91tuN204elxA1
02rotsaCleviwS214gnirpS1
12rehsaW224pilCgnirpS1

Page 10SKU 93033 For technical questions, please call 1-800-444-3353.
Assembly Drawing
42