Product Brochure
Table Of Contents
- HD-7P and HD-7W Manual
- Table of Contents
- Introduction
- Shipping Information
- Safety Considerations
- Components
- Specifications
- Frequently Asked Questions
- Installation Checklist
- Installation
- Being Safe
- Tools
- Planning for Electrical Work
- Selecting an Approach Direction
- Selecting a Power Post Location
- Checking Clearances
- Selecting a Location
- Unloading and Unpacking
- Creating Chalk Line Guides
- Moving the Posts into Position
- Installing the Crosstubes
- About Safety Locks
- Installing the Ladders and Top Cap
- Raising the Crosstubes
- Securing the Ladders
- Removing Sheaves
- Installing the Runways
- Installing the First End of the Flex Tube
- Routing the Lifting Cables
- Working with Compression Fittings and Tubing
- Installing the Air Lines
- Installing the Hydraulic Hose
- Installing the Return Line
- Installing the Power Unit
- Filling the Hydraulic Fluid Reservoir
- Installing the Second End of the Flex Tube
- Installing the Pushbutton Air Valve
- Connecting the Return Line
- Connecting the Hydraulic Hose
- Contacting the Electrician
- Connecting to a Power Source
- Installing a Power Disconnect Switch
- Installing a Thermal Disconnect Switch
- About Effective Embedment
- Anchoring the Posts
- Final Leveling
- Installing Accessories
- Lubricating the Lift
- Performing an Operational Test
- Reviewing the Final Checklist
- Operation
- Maintenance
- Troubleshooting
- Wiring Diagrams
- Labels
- Parts Drawings
- Automotive Lift Institute (ALI) Store
- Maintenance Log
HD-7P / HD-7W Four-Post Lifts 44 P/N 5900041 — Rev. M — July 2019
You will need more of the ¼ inch, black, polyethylene Tubing that came with the Lift and three Air Line
Tee Connectors to install the Air Lines.
An Air Supply (3 to 25 cfm at 50 to 150 psi) is required to disengage the Safety Locks. Regulate the
line to a maximum pressure of 150 psi.
⚠ CAUTION Do not let the Air Supply exceed 150 psi; the Air Lines could burst or the Safety
Locks malfunction.
The Air Line Elbow Connectors on the Air Cylinders come installed from the factory.
Important: Do not confuse the Air Lines with the Return Line. They use the same Tubing and
fittings, but they are used for completely different things; the two systems
must not
be connected to each other.
To install the Air Lines:
1. Find the roll of supplied ¼ inch, black, polyethylene Tubing and three Air Line Tee Connectors.
2. Measure the distances for each of the seven (7) Tubing pieces you will need (see the drawing on
the previous page).
3. Cut seven pieces of Tubing to the measured lengths from the roll of Tubing.
4. Connect the various pieces of Tubing to the Air Line Tee Connectors on the Lift.
Refer to the drawing on the previous page for the locations of the Tubing pieces.
Make sure to position the three Air Line Tee Connectors as shown in the
drawing
.
Also make sure to route the long Tubing piece that goes under the Powerside Runway through the
Retaining Rings. You need to make sure the Air Lines stay out of the way of the Lifting Cables.
⚠ CAUTION Make sure to route the Tubing pieces on the
outside
of the Front and Rear
Crosstubes through the Steel Tubes on the Crosstubes. This keeps the Tubing and
the Tee Connectors from being disturbed as you use the Lift. This is important,
because if the Air Lines are disturbed, the Safety Locks on the Lift may not work
correctly. If you notice that Tubing has become disconnected from an Air Line Tee
Connector, take the Lift out of service and get the Air Lines fixed.
Refer to Working with Compression Fittings and Tubing for more information about
connecting the Tubing to the Air Line Tee Connectors.
5. Leave the Power Unit end of the Air Line hanging out of the Flex Tube for now.
It will be connected to the Pushbutton Air Valve later in the installation process.