Toro 30607A Operator's Manual page 64

burn marks and cracks. Replace the belt if any of
these conditions are evident.
1. Lower the cutting unit to the shop floor. Remove
the belt covers from the top of the cutting unit
and set the covers aside.
2. Loosen the eye bolt allowing the removal of the
extension spring
3. Loosen the flange nut securing the stop bolt
to the mounting tab. Back off the nut enough
to allow the idler arm to pass by the stop bolt
(Figure 97). Move the idler pulley away from the
belt to release belt tension.
Note:
If the stop bolt is ever removed from the
mounting tab, make sure it is reinstalled in the
hole that aligns the stop bolt head with the idler
arm.
4. Remove the bolts securing the hydraulic motor
to the cutting unit
of the cutting unit and lay it on top of the cutting
unit.
1. Hydraulic motor
5. Remove the old belt from around the spindle
pulleys and idler pulley.
6. Route the new belt around the spindle pulleys
and idler pulley assembly.
7. Position the hydraulic motor on the cutting
unit after routing the belt around the pulleys.
Mount the motor to the cutting unit with the bolts
previously removed.
Note:
Make sure the belt is positioned on the
spring side of the belt guide
8. Reconnect the extension spring
the eye bolt and tension the belt as follows:
•
When properly tensioned, the extension
spring (hook to hook) measurement should
be approximately 8.9 cm ± .63 cm (3.50 ±.25
inch (inside).
•
Once the correct spring tension is attained,
adjust the stop bolt (carriage bolt) until there
(Figure 97).
(Figure 98). Lift the motor off
Figure 98
2. Mounting bolts
(Figure 97).
(Figure
is approximately .32 cm ± .152/.000 cm (.125
+.060/-.000 inch) clearance between the
head of the bolt and the idler arm.
g011511
97) to
64