Autoquip PLTC DOCK LIFT - Manual (Page 25)

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LEVELING TO GRADE:
1.
The platform top should be solid and flush with the pit curb angles. The pit depth
includes 1/2” added to the lowered height of the lift for leveling purposes (see
Figure 11).
2.
Fully lower the lift platform into the pit and check for proper height.
3.
Shims and/or grout must be placed under the entire base frame assembly and
the platform support members to support the platform top at grade level. DO
NOT “spot” shim! Shims and/or grout must be able to support the lift base frame
while loaded at full rated lifting capacity and rollover load.
STARTING UP AND LAGGING DOWN :
1.
Check the routing of the temporary hydraulic lines to assure that the hose is clear
of legs, bas frame, and platform when lift is in the lowered position.
2.
Make positioning adjustments of the lift to align the platform with a 1” clearance
around the edges of the pit.
3. Make temporary electrical connections and permanent hydraulic connections
(refer to Hydraulic Piping/Hose Size chart above). The female end connection
on the lift base frame is 1/2” NPT.
4.
In order to run hose to the lift cylinders from a remote power unit without having
to route the hose under the base frame, all 8” lowered height PLT models have
been provided with the necessary fittings, (shipped-loose), to do so. Simply
thread one end of the high pressure pipe nipple to the 1/2" NPT Tee located in
the base frame. Thread the high-pressure hydraulic elbow fitting to the other end
of the nipple (refer to Figures 13 and 14). The 1/2" NPT pipe plug may have to
be relocated as shown. NOTE: Use pipe dope at all connections – DO NOT
USE TEFLON TAPE.
5.
Raise the lift approximately one foot using the “UP” button (Caution: Do not raise
the lift to its full travel until all the air has been bled from the system. It is very
difficult to lower the lift if the velocity fuses engage while the lift is fully raised).
Then lower the lift back to fully collapse, holding the “DOWN” button for
approximately 60 seconds. Repeat this process five to seven times to bleed any
air out of the hydraulic system while confirming that the alignment of the lift in the
pit is acceptable.
INSTALLATION INSTRUCTIONS