Autoquip VERTICAL RAM LIFTS - DUAL RAM - Manual (Page 15)

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2. If more than 24” – 36” headroom is required, the lift platform can also be blocked
open using one of the following approved procedures:
A. Raise the lift past floor level and lay structural steel members diagonally across
each of the four corners of the pit opening. These steel members must be of the
same size and weight of the primary substructure members of the platform.
Slowly bring the platform to rest on these steel members.
B. Place jack stands under each of the four corners of the platform. The jack stands
must be rated to stand the total weight of the platform plus the weight of the
rams. To avoid damage to the deck, a large plate should be placed between the
jack and the underside of the platform deck if the jack cannot be placed
underneath a structural member. Slowly bring the platform to rest on the jack
stands.
WARNING!
If the platform is left on jack stands and the rams(s) removed, care
must be taken to prevent side impacts to the platform that could
cause the stands to deflect or move and cause the platform to fall.
3. Continue holding the “DOWN” button for 10 – 15 seconds after the platform comes
to rest on the floor or stands to ensure that all hydraulic pressure in the system is
removed.
4. Once the work is complete, raise the lift by pressing the “UP” button.
BLOCKING INSTRUCTIONS