33
Illustration of hydraulic valve for power unit
V. TEST RUN
1. Fill the reservoir with Hydraulic Oil (
Note
: In consideration of Power Unit’s durability
，
please use
Hydraulic Oil 46#
).
2. Press the control button, the cables will be strained. Check whether the cables
match the pulley. Make sure the cables are not across.
3. Press the release valve handle to lock the cross-beam to the safety ladders, and then
adjust the platforms to be level by adjusting the nuts of safety ladders.
4. Adjust the cable fitting hex nuts to make platforms and four safety locks work
synchronously. You need to run the lift up and down for several times, meanwhile do the
synchronous adjustment till the four safety devices can lock and release at the same time.
5. Adjust the clearance between the column and the plastic slider of cross-beam to
about 2mm, do not tighten the bolts of the sliding block, let the sliding block can be
turned after installing the bolts
6. After finishing the above adjustment, test running the lift with load. Run the lift with
platforms in low position first, make sure the platforms can rise and lower synchronously
and the safety device can lock and release synchronously. And then test run the lift to the
top completely. If there are anything improper, repeat the above adjustment.
Fig.44
Check valve
Oil outlet
Oil return port
Release valve
Handle for
relief valve
Relief
valve
Throttle
valve
