4. Do not attempt to level on an extremely un-leveled surface. This can cause damage to jacks.
5. When jacks are fully extended, occasionally wipe dirt from the jack ram/rod. This will
help lengthen life of jack. WD-40 will serve as a solvent as well as a lubricant.
6. Some assembly lubrication, both oil and grease on the extended jack ram is normal, and aids
in lubrication of the ram. The presence of assembly lube on the extended jack ram DOES NOT
indicate a leak.
7. If a component of the hydraulic system has been removed and replaced (such as a jack, pump,
valve assembly, etc.) air will probably have been introduced into the system. In order for the
system to work properly, each jack must be fully extended and retracted at least twice to remove
all air (self-bleeding operation). Additional air can also be trapped in the manual emergency release T-valves located on the valve
manifold. With the jacks fully extended, open the
manual retract valves to bleed out the trapped air. This will
retract the jacks at the same time. Close the handles. After the
bleeding operation, the liquid level might need to be reset. See
8. A majority of the fittings in the hydraulic system are pipe threads. At the factory all male
pipe threads are wrapped with at least three turns of Teflon tape, except for the first thread at the
tip of the fitting. A small amount of grease is applied to the un-tefloned tip of the fitting and to
the mating female thread. The above procedure insures proper sealing and prevention of Teflon
tape entering into the hydraulic system. If a fitting is removed, residual Teflon tape must be
removed from both the male and mating female threads, if they are to be reassembled. A
maximum practical amount of filtration has been incorporated into the system to prevent dirt
from contaminating the operation and sealing of the valves. When assembling components,
special attention is required to maintain cleanliness.