Install Work Support directly into a flat-bottom tapped hole in the fixture – see drawings for hole-preparation instructions. Alternatively, inch-size Work Supports can be installed in a Mounting Base. In both cases, hydraulic sealing is accomplished by a Sealing Washer (furnished) placed directly underneath the support. Tighten to the recommended seating torque of 50 ft-lbs. Fluid passages must be drilled as shown in the drawings. Do not use NPT fittings.