Case CX490D Operator's Manual page 320

Auxiliary low-flow hydraulic circuit
The machine can be equipped with an additional auxiliary low-flow hydraulic circuit to operate attachments featuring
secondary hydraulic actuation for positioning, such as rotating grabs or tiltable buckets.
Hydraulic connections
The feed valves at the top of the arm allow to install properly and safely the hoses to connect the hydraulic attachment
to the lines of the auxiliary low-flow hydraulic circuit.
Open/Close tool (A)
Hydraulic connection (B)
NOTE: the maximum flow rate of the auxiliary low-flow hydraulic circuit using the SP work mode is 65 L/min (17.2 US
gpm). The maximum working pressure of the auxiliary low-flow hydraulic circuit is 20.6 MPa (2988 psi).
NOTE: an additional drainage line (D) is located on the left side of the arm. The drainage line (D) is intended to allow
external drainage from the hydraulic motor which rotates the grab or the crusher.
NOTICE: Always keep each connecting hose on the same side of the arm. Never cross-over the connecting hoses
between the two sides of the arm.
9 - ACCESSORIES
12
SMIL15CEXY958FB
24 mm wrench
G 3/4" female port with O-Ring seat
9-14