Dannmar D4-9 - Lubricate the Cable Sheaves; To extend the Piston

D4-9 / D4-9X Four-Post Lifts 33 P/N 5900251 — Rev. A1— August 2021
Lubricate the Cable Sheaves
Before reinstalling the Cable Sheaves (removed earlier in installation process) when routing the Lifting
Cables, now is a good time to lubricate the Cable Sheaves to ensure the Lift raises and lowers
smoothly during operation.
Use white lithium grease or similar to lubricate the six Cable Sheaves (and Sheave Pins) underneath
the Powerside Runway, plus the Cable Sheaves at the ends of the Crosstubes four total).
Crosstube Cable Sheaves: Runway Cable Sheaves:
Before routing the Lifting Cables, you also need to extend the Piston on the Hydraulic Cylinder.
To extend the Piston:
1.
Remove the Shipping Plug from the Return Port.
The Return Line Port is on the Cylinder end closest to
where the Power Unit will be.
2.
Attach an air pressure source to the Return Line Port.
3.
Use the air pressure to extend the Hydraulic
Cylinder’s Piston and Retaining Plate.
If the Cylinder does not move, stop using air pressure;
instead, use a pulling device (such as a Come Along
Tool) to extend the Piston and Retaining Plate; be
care not to damage the Piston.
4.
Reinstall the Shipping Plug to the Return Line Port.