Toro 78551, Manual

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4. Remove the existing right belt cover bracket ( Figure
2 and Figure 3 ).
Figure 3
60- and 72-inch mower deck shown
1. Right belt cover bracket 3. Flange nut
2. Washer
5. Store the right belt cover, bracket, and hardware for
later use if you remove the bagger blower and pulley.
6. Remove and retain the deck belt.
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Installing the Pulley Assembly
and Belt
Parts needed for this procedure:
1 Pulley assembly
For Units with Bolts
1. Loosen, but do not remove, the tapping bolts on the
existing mower-deck pulley (
Figure 4 ).
Note:
There should be a 5 mm (3/16 inch) clearance
between the bolt head and pulley.
2. Align the new pulley assembly so that the openings fit
over the pulley bolt heads (
Figure 4 ).
3. Turn the pulley to lock it into position ( Figure 4 ).
Note:
If the pulley does not turn, loosen the bolts
more to raise the bolt heads and allow the pulley to
lock into position.
4. After the new pulley assembly is in position, tighten the
existing bolts to secure new pulley assembly.
Note:
Torque the bolts to 28 to 34 N-m (21 to 25
ft-lb).
Figure 4
1. Pulley
assembly 3. Locking slots 5. Clearance—5
mm (3/16 inch)
2. Mower-deck
pulley 4. Bolt heads
5. Install the deck belt.
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