ASSEMBLE 145HS775 RAMP CONTROL VALVE (AVIM)
General Safety Instructions:
Hydraulic fluids (E197 and E199)
are toxic. They can irritate skin and
cause burns. Avoid inhaling. Use
only with adequate ventilation. Avoid
contact with skin, eyes, or clothing.
In case of contact, immediately flush
skin or eyes with water for at least
15 minutes. Get medical attention
Work area where valve will be
maintained must be clean and
free of dirt and oil, and any other
foreign matter that could contaminate
components of the valve.
contaminated, valve will not operate
Observe the following procedures throughout
Unless only hydraulic fluid (E199) is specified,
lubricate all packings and seals with hydraulic
fluid (E199) or petrolatum (E274) before
installation. Be careful not to damage seals
or packings. Threaded components to be
lubricated shall also have their threads
lubricated prior to installation and torquing.
Make sure preassembled and loose parts
remain clean and free of contamination by
keeping them in clean plastic bags (E78),
or wrapped in barrier material (E80) until
Make sure that all seal bearing surfaces
remain clean and free of any nicks or
scratches. Seal bearing surfaces are those
surfaces rubbed by packings and seals
Install four shear seals (1) as follows:
Install packing (2) and retainer (3) over
packing on each shear seal (1).
Install shear seal (1) in bore of valve body (4)
and position in applicable port (5).
Do not mar face of shear seals during
Press shear seal (1) into port (5), using a
plastic or hard wooden dowel (6). Apply even
pressure on each side of dowel until shear
seal seats in port.
Install plugs in shear seal and tubing ports on
bottom of valve to prevent contamination.