Toro 22317 Service Manual page 185

CHAIN DRIVE/HYDRAULICS
23. Remove the relief valve from the 4-spool valve (Fig.
0594).
24. Remove the relief valve o-ring from the 4-spool valve
(Fig. 0595).
4/2-16
Fig. 0594 DSC-2773a
Fig. 0595 DSC-2775
25. If the 4-spool valve is being serviced, remove all
the fittings before servicing (Fig. 0596). To service
the 4-spool valve, refer to "105-6246 4-Spool Valve
Rebuild (Chain Drive)" on page 3/1-33.
Toro Wheeled CUL Service Manual
Fig. 0596 DSC-2779a