Harbor Freight Tools 94780 User Manual

10000LBS 2-POST LIFT

Model 94780

INSTALLATION, OPERATION

& MAINTENANCE MANUAL

IMPORTANT: READ THIS MANUAL COMPLETELY BEFORE

INSTALLING or OPERATING LIFT

GENERAL SPECIFICATIONS

See Figure 1

A Rise Height (Screw Pads Highest Position)
B Column Height
C Overall Width
D Drive-thru Clearance
E Floor to Overhead Switch
F Short Arm Reach
G Long Arm Reach
H Screw Pad Height
K Inside of Columns

* Maximum Capacity
Ceiling Height Required
Motor

* Lift capacity ratings are based on loads equally distributed on all four arms.
** Lifting and lowering speeds may vary depending on weight of vehicle.

12’ Min. To Nearest Obstruction

78 1/8”(1985mm)

151 3/16”(3840mm)

131 1/2”(3340mm)

99 3/8”(2524mm)

144”(3660mm)
28 1/4”-41 3/8”(730-1050mm)
34 3/8”-55 1/8”(874-1400mm)

5 3/8”-7 1/4”(136-185mm)

109 7/8”(2790mm)

10000LBS(4545kg)

152 3/16”(3865mm)

2HP, Single Phase, 60Hz, 220V

12’ Min. To Nearest Obstruction

Fig 1a- General Specification Fig 1b- Service Bay Layout

VERTICAL CLEARANCE

Check the height of the area where the lift is to be installed. Clearance should be calculated based on the
full raised height of the lift.

Failure by purchaser to provide adequate clearance could result in

unsatisfactory lift performance, property damage, or personal injury.

FLOORING

Be certain you have the proper concrete floor to properly handle the loaded lift. Floor should be in
generally good condition with no large cracks, spalling or deterioration.

Minimum requirements for concrete are 4 inches minimum depth, with steel reinforcement, 3500
PSI, cured for 28 days per local commercial practice.

Floor should be level within 3/8 inch over the installation area. No anchors should be installed within 8
inches of any crack, edge, or expansion joint. If these conditions cannot be met, pads can be poured to
accommodate the lift.
Check with local building inspectors and/or permits office for any special instructions or approvals
required for your installation.

Failure by purchaser to provide the recommended mounting
surface could result in unsatisfactory lift performance, property
damage, or personal injury.

Always wear ANSI approved safety goggles when installing and using this product.

ELECTRICAL REQUIREMENTS

For lift installation and operation for single phase units, it is necessary to have a dedicated circuit with a
25 amp circuit breaker or time delay fuse.

SAFETY NOTICES AND DECALS

For your safety, and the safety of others, read and understand all of the safety notices and decals
included here.

READ ENTIRE MANUAL BEFORE ASSEMBLING, INSTALLING, OPERATING, OR
SERVICING THIS EQUIPMENT.
PROPER MAINTENANCE AND INSPECTION IS NECESSARY FOR SAFE OPERATION.
DO NOT OPERATE A DAMAGED LIFT.

Safety decals similar to those shown here are found on a properly installed lift. Be sure that all safety
decals have been correctly installed on the Power Unit reservoir. Verify that all authorized operators
know the location of these decals and fully understand their meaning. Replace worn, faded, or damaged
decals promptly.

Do not attempt to raise a vehicle on the lift until the lift has been

correctly installed and adjusted as described in this manual.

RECEIVING

The shipment should be thoroughly inspected as soon as it is received. The signed bill of lading is
acknowledgement by the carrier of receipt in good condition of shipment covered by our invoice.
If any of the goods called for on this bill of lading are shorted or damaged, do not accept them until the
carrier makes a notation on the freight bill of the shorted or damaged goods. Do this for your own
protection.
NOTIFY our company AT ONCE if any hidden loss or damage is discovered after receipt.

Component Packing List

DESCRIPTION QTY

Power Column Ass’y 1 Synchronizer Cable 2

Idler Column Ass’y 1 Hydraulic Hose Pack 1

Power Column Extension 1 Power Lock Cover 1

Idler Column Extension 1 Idler Lock Cover 1

Overhead Ass’y 1 Hardware Box 1
Rear Arm Ass’y 2

Front Arm Ass’y 2

DESCRIPTION QTY

INSTALLATION

IMPORTANT: Always wear safety glasses while installing lift.

TOOLS (MINIMUM REQUIRED)

a. Banding Cutter
b. Tape measure, 16ft
c. Chalk line
d. 4ft level
e. 10” adjustable wrench
f. Standard open end wrenches 7/16”-15/16"
g. Needle nose pliers
h. Hammer drill
i. 2lb hammer
j. Torque wrench: 150 foot pounds minimum
k. 12 ft. Step ladder
l. Anti-Seize lubricant (for arm pins)

LAYOUT

1. Layout the service bay according to the architect’s plans or owners instructions (see Fig 1b). Be

certain that the proper conditions exist.

2. Assemble column extension to column using M12×30 Hex bolt. Repeat for opposite column and

extension.

3. Using the Overall Width(C) as a guideline, chalk two parallel (line 1 and line 2) on the concrete

floor within 1/8 inch tolerance.

4. Determine the location of the Column Ass’y on either chalk line and mark the base plate dimension

Overall Width(L) .

Fig 2 – Floor Plan
Be sure to stay within a 1/4 inch overall tolerance. This will eliminate any
difficulty in final assembly or possible premature chain wear or
misalignment.
The chalk line layout is very important. If it is not followed accurately

problems may arise in final assembly and operation.

5. Using a lifting device, Erect both column assemblies with the installation lines.

ANCHORING

6. The anchor bolts must be installed at least 8 inches from any crack, edge, or expansion joint.

7. Use a concrete hammer drill with a carbide bit. Do not use excessively worn bits or bits which have

been incorrectly sharpened. A core bit may be necessary if an obstruction is encountered.

Never substitute with shorter anchor.

8. Recheck “Inside of Columns” dimension, Fig 1. Drill the anchor holes using the base plate as a

template. Drill through the floor if possible or to a depth of 3.5 inches minimum.

9. Vacuum dust from the hole for proper holding power.

10. Shim both columns to plumb using the shims provided. DO NOT shim more than 1/2" at any given

point. Use a level no less than 24” in length to plumb columns.

11. Assemble washer and nut to anchor with nut just below impact section of bolt. Drive anchor into

hole until nut and washer contact base.

12. Tighten power column anchors and recheck column for plumb. Reshim if necessary. Torque to 150

foot pounds to set anchors.

Never remove the lift before the columns Tightened by the anchor bolts.

OVERHEAD BEAM

13. Assemble overhead ass’y to column extension using M12×30 Hex bolt.

14. Install Overhead Limit Switch to Power Column.

SYNCHRONIZER CABLES

15. Manually raise the carriages until each is located on the second lock position.

16. Route synchronizing cables using Fig 3 and attach ends to carriages’ joining using Fig’s 4.

17. Adjust cable tension by adjusting each cable’s adjustment nuts. The cables should be tight with no

slack. Each cable should be the same tension. Be sure as you are tightening the cables that they have
remained in place over the pulleys. Failure to do this will result in damage to the cable.