VEVOR TF15 Mode D'emploi page 8

Trouble
The table can not be
lowered.
The table truck can not
lift rate weight.
Clause
-The piston rod(pump (5)) or link
assembly(2) is deformed resulting
from partial loading slanting to one
side or overloading.
-The table was kept n the high
position for long time with piston rod
bared to arise in rusting and
jamming of the rod.
-The hydraulic system as jammed.
-Relief spring(pump(28)) is invalid
for a good while.
Fixing Methods
-Replace the piston rod(pump (5))
or link assembly(2).
-Keeping the table in the lowest
position if not using.
-Inspect the hydraulic system and
lobby or replace the relative part.
-Twist relief spring(pump(26))
clockwise a little.