Service Manual

HYDRAULIC SYSTEM

5-16 Toro Z Master G3 3000/5000/6000 Series Service Manual

39. Using a 1/2” drive breaker bar installed in the square

hole in the pump idler assembly, rotate the idler arm

counter-clockwise, tensioning the spring to allow

room to install the belt (Fig. 319).

Fig. 317 PICT-8687a

37. If necessary, tighten the castle nut until the next set

of slots line up with the cross hole in the shaft. Do

not loosen the nut to align the slot.

38. Install the cotter pin. Use a new cotter pin if needed

(Fig. 318).

Fig. 318 PICT-8689

Fig. 319 PICT-8557a

40. While holding spring tension, install the v-belt

around the UHT pulleys and the engine drive pulley.

Release tension when belt is in place (Fig. 320).

Fig. 320 PICT-8561a

35. If more than two threads (0.1”/25mm) are showing,

remove the nut and install a washer between the

hub and the castle nut.

36. If a washer was added, re-torque the slotted nut to

200 ft-lbs. (271 Nm) (Fig. 317).