Toro 22317 Service Manual page 509

4-PAW DIESEL/ENGINE
58. Using a 1/4" 8-point socket, tighten the 2 pump
coupler set screws (Fig. 1754).
59. Slide the idler arm inward (Fig. 1755).
6/4-42
Fig. 1754 DSC-2586a
Fig. 1755 DSC-2588a
60. Route the belt around the idler pulley (Fig. 1756).
61. Move the idler arm outward to apply tension to the
fan belt. While applying tension, use a 9/16" socket
to tighten the idler arm nut (Fig. 1757).
Toro Wheeled CUL Service Manual
Fig. 1756 DSC-2590a
Fig. 1757 DSC-2594a