BendPak SP-7XE, Installation And Operation Manual, Page: 30 / 68

SP-7XE/F Full-Rise Scissor Lift
30
P/N 5900010 — Rev. B — June 2022
IMPORTANT! PLEASE READ NOW
Hydraulic Fluid Contamination poses a serious issue for your Lift ; contaminants such as
water, dirt, or other debris can get into the Hydraulic Hoses and Fittings on the Lift, making your new Lift
inoperable and unusable.
Your Lift is shipped with clean components; however, BendPak strongly recommends that you take
secondary precautions and clean all Hydraulic Hoses and Fittings prior to making connections. It is better
and less costly to take these extra steps now so that you do not need to take your Lift out of service later
to fix issues that could have been prevented at the time of installation.
There are several ways to clean Hydraulic Hoses and Fittings:
•
Compressed Air . Use an air compressor to blow out contaminants from each Hydraulic Hose and
Fitting prior to installation. Clean, dry air is preferred. Wear ANSI-approved eye protection (safety glasses,
goggles, or face shield) when using compressed air for cleaning. Never point an air hose nozzle at any part
of your body or any other person.
•
Fluid Flushing . As long as the Hydraulic Fluid is clean and compatible with the system fluid, you can
flush Hoses and Fittings to create turbulent flow and remove particulates. Always ensure that the fluid itself
is contaminant-free. Some additional steps that will help keep the Hydraulic Fluid clean:
• Remove old thread seal tape . Some ports on the Hydraulic Cylinders are shipped with temporary
plugs secured with thread seal tape, so make sure to thoroughly remove any leftover thread seal tape that
may inadvertently enter the Hydraulic System.
•
Use a liquid thread sealant only . Liquid thread sealant (Loctite™ 5452 or similar) is recommended.
Do not use thread seal tape on any fitting. Liquid thread sealant is recommended for NPT connections,
fine for JIC connections, but not necessary for O-ring (ORB) connections.
•
Always use clean equipment . If you use a dirty bucket or funnel to transfer the Hydraulic Fluid into
the Hydraulic Fluid Reservoir, the contaminants will likely be introduced into the Fluid. When using cleaning
rags, use a lint-free rag.
•
Proper storage . Keep the Hydraulic Fluid sealed in its container until ready for use; store the Fluid in a
clean, dry, and cool area.
•
Cover the Hoses and Fittings
. Before installation, do not leave the ends of the Fittings exposed; the
same applies for the Hydraulic Hoses. As a general rule, keep the Hydraulic Hoses and Fittings capped
and in a clean area until ready for use.
•
Filter the new Hydraulic Fluid . Just because it is new does not necessarily mean it is clean . Use an
offline filtration cart or kidney loop system to make sure the Hydraulic Fluid is clean before being
transferred into the Hydraulic Fluid Reservoir (even using a heavy duty nylon mesh screen is better than
trusting what is left at the bottom of the barrel).
•
Avoid mixing different types of Hydraulic Fluid . If Hydraulic Fluid needs to be replaced, make
sure to flush the Hydraulic System of the old Hydraulic Fluid before you add the replacement Fluid; do not
mix the two together.