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- 91764
- Operating instructions
Central Hydraulics 91764 Wheelchair User Manual
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12 Pages
Central Hydraulics 91764 is a versatile motorcycle lift with a 1000 lb. lifting capacity, making it suitable for lifting most motorcycles and ATVs. It features a tire vise, wheel stop, leveling pads, swivel casters, and a locking bar for enhanced stability and safety during lifting operations. The lift's adjustable platform dimensions of 86-1/2" L x 26-3/4" W provide ample space for various motorcycle sizes.
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1000 lb. Motorcycle lift
91764
Set 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
©
2004 by Harbor Freight Tools
®
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.
. 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
for technical questions or replacement parts, please call 1-800-444-3353.
Manual revised 09e, 09i
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.
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.
Safety alert Symbol and Signal
Words
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.
3.
4.
5.
iMportant Safety inStructionS
failure to heed theSe inStructionS May reSult in perSonal injury and/ or property daMage:
1.
Study, understand, and follow all instructions before operating this device.
2.
do not exceed rated capacity.
be aware of dynamic loading!
Bouncing of dropping the load suddenly may briefly create excess load causing product failure.
6.
7.
8.
use only on hard, level surfaces.
center load on lift platform.
immediately after lifting load, ensure that the locking bar is in place. before moving, lower the load to the lowest possible point.
Secure load with appropriate restraint device.
do not adjust safety valve.
Wear anSi-approved safety goggles, heavy-duty work gloves and safety shoes during use.
SKU 91764
for technical questions, please call 1-800-444-3353.
Page 2
9.
10.
11.
12.
Keep clear of load while lifting, moving and lowering.
lower load slowly.
do not use for aircraft purposes.
inspect before every use; do not use if parts are loose or damaged.
13. Keep work area clean and well lit. Cluttered or dark areas invite accidents.
14. Keep children and bystanders away while operating. Distractions can cause you to lose control.
15. Stay alert. Watch what you are doing, and use common sense when operating. Do not use while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating may result in serious personal injury.
16. Store idle lifts out of the reach of children and do not allow persons unfamiliar with the lift or these instructions to operate it. Lifts are dangerous in the hands of untrained users.
17. Have your lift serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the lift is maintained.
18. Maintain labels and nameplates on the lift. These carry important information. If unreadable or missing, contact Harbor Freight Tools for a replacement.
19. Read lifting requirements in service manual of the motorcycle being lifted.
20. Industrial applications must follow
OSHA requirements.
21. Do not allow anyone on the lift or the motorcycle or the ATV while on the lift.
22. aise Casters off the ground to prevent movement before loading, unloading, raising, or lowering.
23. Before lowering, remove all tools and equipment from under lift.
24. WARNING: The brass components of this product contain lead, a chemical known to the State of
California to cause birth defects (or other reproductive harm).
(California Health & Safety code §
25249.5, et seq.)
25. Only use this lift to raise a motorcycle or an ATV to perform maintenance.
Do not attempt to transport or relocate motorcycle/ATV while on the
Lift.
26. 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.
SaVe theSe inStructionS.
SKU 91764
for technical questions, please call 1-800-444-3353.
Page 3
SpecificationS
Rated Capacity
Height Range
1000 lb. (
1
/
2
ton)
18-
1
27-
3
/
2
/
4
” (1
” (2 st nd
lock)
lock)
Features
Tire Vise
Wheel Stop
Leveling Pads
Swivel Casters (front)
Locking Bar
Platform Dimensions 86-
1
/
2
” L x 26-
3
/
4
” W
Weight 350 lb.
front axle (52) frame assembly cotter pin (47)
unpacKing
When unpacking, make sure the following parts are included:
Main lift assembly access panel hardware Kit lift foot pedal
Vise assembly locking bar release foot pedal ramp
If any parts are missing or broken, please call Harbor Freight Tools at the number on the cover of this manual.
aSSeMbly
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.
1. Raise the end of the Frame Assembly near the Access Panel (36), and support it on blocks.
front
Wheel (44)
Washer (43)
2. Place a Front Wheel (44) and Washer
(43) on the end of the Front Axle (52).
Insert a Cotter Pin (47) through the hole in the Axle, and bend it to secure the Wheel in place. Repeat for the other Front Wheel (44).
3.
4.
Lower the Frame Assembly off the blocks.
Turn the Lifting Screws (18) clockwise to raise the opposite end of the Frame Assembly.
nut (21) lock
Washer (20)
Washer (13) frame assembly lifting
Screw
(18) caster (14)
Washer (13) bolt (12)
5. Install the Casters (14) to the Frame using Bolts (12), Washers (13), Lock
Washers (20), and Nuts (21), as shown above.
reV 08k
SKU 91764
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Page 4
6.
8.
Turn the Lifting Screws (18) counterclockwise to lower the lift onto the Casters.
access panel (36) ramp
(37) platform (35)
Washers (23) r-pins
(04)
7. Place the Access Panel (36) into the
Platform (35).
Attach the Ramp (37) to the end of the Platform (35) using Washers (23) and R-Pins (04).
10. by means of removing Fastners 30,
31, 23 and 34. Bolts and Nuts to be tightened only after determining the proper tire mounting position.
Attach the Stop Plate (32) to the
Platform using Bolts (33), Washers
(23), Lock Washers (31), and Nuts
(30). Do not tighten.
11.
12.
Fit the Lift Foot Pedal (11) over the
Pump Piston Spindle (09).
Fit the Release Foot Pedal (10) over the Release Valve Spindle (05).
operation
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.
before first use
1.
2.
Check and fill oil as needed. See
checking and filling hydraulic
fluid instructions.
Bleed the Lift Jack according to the
bleeding instructions.
3. Test the Lift several times for proper operation before attempting to lift a load.
if, after bleeding twice, the lift still does not appear to be working properly, do not use the lift until it has been repaired by a qualified service technician.
9. Fit the Vise Assembly (34) to the front of the Platform using Bolts (33),
Washers (23), Lock Washers (31), and Nuts (30). Adjust to suit the motorcycle. Note: Location of Front
Wheel Vise Assembly (34) in relation to the Stop Plate (32) is adjustable
SKU 91764
for technical questions, please call 1-800-444-3353.
Page 5
1.
2.
3.
4.
5.
6.
lifting
Position the lift on a flat, level, hard surface able to support at least 1350 lb.
Turn the Lifting Screws (18) clockwise to evenly raise the Casters (14) off the ground and limit movement.
With the Access Panel (36) in place, roll the motorcycle onto the lift. Kick the center stand of the motorcycle down to stabilize it on the lift.
Clamp the front wheel of the motorcycle into the Vise Assembly to prevent movement of the wheel.
Note: When properly set, front tire of motorcycle should rest against Stop
Plate (32) and axle of the tire to be centered over the Front Wheel Vise
Assembly. If not, slide Stop Plate and/or re-position wheel vise.
Secure the motorcycle to the lift using tie-down straps (not included).
See motorcycle’s owner manual for locations of strap attachments.
Pump the Lift Foot Pedal (11) repeatedly to raise the lift.
8. in the Front Lifting Arm (38) so the lift cannot be accidentally lowered.
Gently press release foot pedal to lower the platform to reset the load on Locking Bar (22) and not on the lift jack. Slightly pump up the platform to free the Locking Bar.
1.
lowering
Remove all tools, parts, etc. from under the vehicle.
2. Remove the Locking Bar (22), then slowly press the Release Foot Pedal
(10) to ease doen the unit.
note: The speed of lowering is controlled by the Release Foot Pedal (10).
Operate this pedal slowly in a controlled and safe manner.
3.
4.
5.
After lowering, open the vise jaws and remove the motorcycle from the lift.
Turn the Lifting Screws (18) counterclockwise to lower the lift onto the Casters (14).
Store in a safe, dry location out of reach of children.
locking bar (22) leveling pads (18) caster (14)
7. When the platform has been raised to the working height, pass the
Locking Bar (22) through the holes
1.
Small atV application
The Lift can be used to support small
ATV’s under certain conditions. A small ATV can be rolled onto the Lift if the wheel width of the ATV falls within
26-3/4” width of the Lift’s platform.
Never attempt to ride an ATV onto the platform. The Lift should not be used to support an ATV unless all 4 tires of the ATV can completely rest on the platform.
SKU 91764
for technical questions, please call 1-800-444-3353.
Page 6
2.
3.
Always use at least 2 wheel chocks
(one for a front ATV wheel and one for a back ATV wheel) to prevent movement of the ATV while it is being worked on. Wheel chocks are not included, but are available from
Harbor Freight Tools (recommend a non-slip rubber Wheel Chock like
Item 65320 or Item 06479).
Always secure the ATV to the Lift using tie down straps (not included).
inSpection, Maintenance, and cleaning
Procedures not specifically explained in this manual must be performed only by a qualified technician.
1.
2.
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. lock the lift with the locking bar (22) before servicing in the raised position.
before each use,
inspect the general condition of the Lift. Check for broken, cracked, or bent parts, loose or missing parts, and any condition that may affect the proper operation of the product. If a problem occurs, have the problem corrected before further use.
do not use damaged equipment.
before each use, thoroughly test the lift for proper components functionality prior to its actual
3.
4.
5.
use. if the lift appears not to be working properly, follow Bleeding instructions.
The mechanical parts of the Lift, such as the pedal lift and release shafts should be occasionally lubricated with heavy oil or grease.
Protect the Lift Cylinder from dirt or grit when in the raised position. If it becomes dirty, wipe it off with a clean cloth before lowering.
Maintain and store the Lift in a reasonably protected environment.
Do not expose to rain or excess moisture. Protect from salt water or other corrosive materials. If it becomes dirty or contaminated, clean it promptly with clean water or a suitable detergent. If using a pressure washer, be aware that you may remove some paint from the outer surface. Never apply a pressure washer to the seal areas near the pistons or valves. Be sure to lubricate external moving parts after cleaning.
6. If the lift slowly lowers on its own, it may have damaged seals or insufficient oil. First check the oil level. If the level is OK, take the lift to a qualified service technician for seal replacement. Damaged seals may be caused by overloading, or exposure to harmful conditions or inappropriate use of a pressure washer.
note: If the lift can be raised to its highest position, it indicates that there is enough oil. If the lift slowly lowers from this position, it indicates that the problem is likely with the seals.
SKU 91764
for technical questions, please call 1-800-444-3353.
Page 7
note: Do not tamper with the check valves. Any repairs should be performed by a qualified technician.
1.
checking and filling hydraulic fluid
Lower the lift completely. Remove the
Access Panel (36) and the Oil Plug
(P23) underneath.
2.
3.
The oil level should be even with the bottom of the filler plug hole. You should be able to see the oil.
If the oil level is low, add SAE
Hydraulic Jack fluid only. Avoid mixing different brands of oils.
do not use any other fluid or brake fluid.
bleeding
note: if the lift appears not to be working properly, it may be necessary to bleed trapped air from its hydraulic system.
1. Check oil level. Replace plug.
2. Depress Release Foot Pedal (10).
3.
4.
5.
Pump the Foot Pedal (11) several times.
Let up on Release Foot Pedal (10).
Pump Lift Pedal (11). If the motorcycle lift does not elevate smoothly or Pedal (11) feels
“spongy”, repeat steps 2 - 5.
SKU 91764
for technical questions, please call 1-800-444-3353.
Page 8
liMited 90 day Warranty
Harbor 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
SKU 91764
for technical questions, please call 1-800-444-3353.
Page 9
part description
01 Hydraulic Pump
02 Link
03 Pin
04 R-Pin
05 Release Valve Spindle
06 Link
07 Pin
09 Pump Piston Spindle
10 Release Foot Pedal
11 Lift Foot Pedal
12 Bolt M6*25
13 Washer 6
14 Caster Front
15 Bolt M12*70
16 Washer 12
17 Bush
18 Lifting Screws
20 Lock Washer 6
21 Nut M6
22 Locking Bar
23 Washer 10
24 Bolt M10*25
25 Lock Washer 12
26 Nut M12
27 Spring
28 Bush
29 Bolt M12*65
partS liStS and diagraMS
Main parts list
Q’ty
14
4
8
8
9
1
2
9
1
4
4
8
4
2
4
1
1
8
17
2
1
1
1
1
5
1
1
part description
30 Nut M10
31 Lock Washer 10
32 Stop Plate
33 Bolt M10*25
34 Vise
35 Platform
36 Access Panel
37 Ramp
38 Front Lifting Arm
39 Rear Lifting Arm
40 Lifting Arm Spindle
41 Bolt M8*12
42 Nut M16
43 Washer 13.5
44 Rear Wheel
47 Cotter Pin
48 Connection
49 Frame Assembly (RH)
50 Frame Assembly (LH)
51 Lifting Arm Top Rod
52 Front Axle
53 Bolt M6*30
54 Set Screw M8*10
55 U-Clamp
56 Nut M8
57 Grease Fitting
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 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.
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.
SKU 91764
for technical questions, please call 1-800-444-3353.
Page 10
Q’ty
2
2
4
4
1
1
1
1
1
1
1
1
1
4
4
4
1
2
1
4
8
7
1
1
1
1
Main assembly diagram
35
SKU 91764
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Page 11
pump parts list and diagram
part description
P01 Base
P02 Steel Ball
P03 Spring
P04 Screw
P05 Copper Washer
P06 Regulating Plug
P07 Sealing Ring
P08 Pump Piston
P09 Union Nut
P10 Union Nut
P11 Screw
P12 Spring
P13 Release Valve
P14 O-Ring
P15 Steel Ball
P16 Steel Ball
P17 Ball Cup
P18 Spring
Q’ty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
2
part description
P19 Screw
P20 O-Ring
P21 Screw
P22 Screw Protector
P23 Oil Plug
P24 Seal Ring
P25 Set Nut
P27 Nylon Ring
P28 Reservoir
P29 Nylon Ring
P30 Cylinder
P31 O-Ring
P32 Nylon Ring
P33 Piston Rod
P34 Nylon Ring
P35 Top Nut
P36 O-Ring
Q’ty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SKU 91764
for technical questions, please call 1-800-444-3353.
Page 12
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