Removing The Mower Deck - Toro 74978 Operator's Manual

Installing the Blades
1. Install the blade onto the spindle shaft (Figure 95).
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 (rotating it
clockwise). The spring disk cone must be installed
toward the bolt head (Figure 95). Torque the blade bolt
to 85-110 ft-lb (115-150 N-m).
Figure 95
1. Sail Area of Blade
2. Blade
3. Spring Disk
4. Blade Bolt
5. Cone Towards Bolt Head

Removing the Mower Deck

Before servicing or removing the mower deck, the spring
loaded deck arms must be locked out.
WARNING
Deck lift arm assemblies have stored energy.
Removing the deck without releasing the stored
energy can cause serious injury or death.
Do Not attempt to disassemble the deck from the
front frame without locking out the stored energy.
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Remove the height adjustment pin and lower the deck
to the ground.
3. Place the height adjustment pin in the 3 inch (7.6 cm)
cutting height location. This locks the deck lift arms in
the lowest position when the deck is removed and the
stored energy in the deck spring is released.
4. Remove the belt covers.
5. Lift up the floor pan and insert a ratchet into the square
hole in the deck idler (Figure 96).
6. Rotate the deck idler clockwise and remove the mower
belt (Figure 96).
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