Leveling The Mower - Toro GrandStand 74534 Operator's Manual

Figure 81
1. Blade
Installing the Blades
1. Install the blade onto the spindle shaft (Figure 82).
Important: The curved part of the blade must
be pointing upward toward the inside of the
mower to ensure proper cutting.
2. Install the spring disk and blade bolt. The spring
disk cone must be installed toward the bolt head
(Figure 82). Torque the blade bolt to 85-110 ft-lb
(115-150 N-m).
Figure 82
1. Sail Area of Blade
2. Blade
3. Spring Disk

Leveling the Mower

Preparing the Machine
1. Position mower on a flat surface.
2. Disengage the PTO, move the motion control levers
to the neutral locked position and set the parking
brake.
3. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
2. Balancer
4. Blade Bolt
5. Cone Towards Bolt Head
4. Check the tire pressure of both drive tires. If needed,
adjust to 13 psi (90 kPa)
5. Lower the mower to the 3 inch (76 mm) height-of-cut
position.
Note: The actual cutting height will not be adjusted
until the deck has been leveled. Refer to Adjusting
Height of Cut.
6. Check the distance between the swivels, measure at
the center of the swivels (center-to-center length) on
the threaded rod. This length needs to be 19-1/2
inches (49.5 cm) for 36in mower decks and 17-3/16
inches (43.7 cm) for 40in mower decks (Figure 83).
7. Inspect the four chains. The chains need to have
tension.
8. If either rear chain is loose, the length of the threaded
rod on that side will need to be adjusted to get equal
tension on both rear chains.
9. Use the jam nuts at the front swivel to adjust the
length between front and rear swivels on that side
(Figure 83).
10. If either front chain is loose, loosen the nut on the
upper chain bolt and the jam nut on the adjustment
bolt.
11. Use the adjustment bolt to get equal tension on both
front chains (Figure 83).
12. Tighten the nut on the upper chain bolt and the jam
nut on the adjustment bolt.
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