Full Product Manual

GrandPrix Two-Post Lifts 55 P/N 5900209 — Rev. D3 — Feb. 2020
8. Wait for one minute.
NOTICE The Power Unit is not a constant duty motor;
it cannot be run continuously .
9. Repeat the process, this time raising the Lift, engaging it on a Safety Lock position, taking it off the
Safety Lock position, and then lowering it back down to the ground.
Again, follow the instructions in Raising the Lift and Lowering the Lift to safely raise and
lower a Vehicle on the Lift, including engaging it on its Safety Locks.
10. If the Lift is working without shaking, moving erratically, or squeaking, there is no need to repeat
the procedure.
If the Lift is shaking, moving erratically, or squeaking, repeat the procedure one more time.
If you continue to have issues, refer to Troubleshooting for assistance.
11. When the Lift is on the ground and the Vehicle is on all four tires, move the four Lift Arms to their
full drive-through positions.
12. Drive the Vehicle out.
13. With no Vehicle on the Lift Arms, press and hold the Up button on the Power Unit.
The Lift Arms start rising.
14. Have another person push up the Safety Shutoff Bar until it triggers the Microswitch.
The Lift Arms should stop rising.
If the Lift Arms do not stop rising when the Microswitch is triggered, this means the Microswitch is
either not installed correctly or not wired correctly. Return to the sections of this manual where
installation and wiring of the Microswitch is described to find and fix the problem.
⚠ CAUTION Do not put the Lift into normal operation until you have confirmed that triggering the
Microswitch stops the Lift Arms from rising.
Final Checklist Before Operation
Make sure these things have been done before using your Lift:
• Review the Installation Checklist to make sure all steps have been performed.
• Make sure the Power Unit is getting power from the power source.
• Check the Hydraulic Fluid reservoir on the Power Unit; it must be full of approved fluid.
You will
harm the motor by running it without enough fluid
.
• Check the Hydraulic System for leaks.
• Make sure both Posts are properly shimmed, stable, and level.
• Make sure all Anchor Bolts are correctly torqued.
• Make sure the inside of the Posts have been lubricated.
• Make sure all Cables are properly positioned in their Sheaves.
• Make sure all Cable Sheave retaining pins and/or clips are secure.
• Make sure all Safety Locks are cleared and free.
• Make sure the Operational Test was successfully performed.
• Make sure the Installation and Operation Manual is available for all operators.