(1) Oil leaking
The reason is the joint loosening, should find the location, tighten; seals damaged, should be replaced, the pipeline has cracks, should be replaced or welding.
(2) Failure of support leg
Two-way hydraulic lock failure, the lock inside the plunger is stuck, must be washed, installed and adjusted; The plunger is badly worn and should be replaced with a new hydraulic lock.
(3) Automatic retraction of outrigger when lifting weight
There are two reasons: one is the two-way hydraulic lock valve sealing is not good, should be removed overhaul, after cleaning installation, adjustment. Second, the internal leakage of the hydraulic cylinder, the inspection of the piston seals, replacement of new seals after the installation can be.