Toro Groundsmaster 300 Series Service Manual page 269

39. Put the port manifold (three plates bonded together),
valve side up, in a clean surface. Install three 3/4 in.
springs into the spring pockets (Fig. 103).
40. Apply a few drops of oil to the valve plate. Align the
grooves on the side of the port manifold with the grooves
on the side of the isolation manifold and assemble the
port manifold with the springs toward the valve plate
(Fig. 104). Be careful not to pinch a spring during
installation. The two alignment pins in the valve plate
will engage the holes in the port manifold. The pin on
the hex drive assembly must engage the center hole in
the port manifold.
41. Install a new o-ring on the plug. Insert the check ball
hole in the port cover. Be sure the ball is seated in the
bottom of the check ball hole. Turn the plug assembly
into the port cover until the ball is retained (Fig. 105).
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Groundsmaster 300 Series Page 8 - 49
Figure 103
Figure 104
Figure 105
Repairs