Toro Z Master Professional 7500-D Series, Operator'S Manual

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Sharpening the Blades
1. Use a file to sharpen the cutting edge at both
ends of the blade (
Figure 74 ).
Note:
Maintain the original angle.
Note:
The blade retains its balance if the same
amount of material is removed from both cutting
edges.
g000276
Figure 74
1. Sharpen at original angle.
2. Check the balance of the blade by putting it on a
blade balancer (
Figure 75 ).
Note:
If the blade stays in a horizontal position,
the blade is balanced and can be used.
Note:
If the blade is not balanced, file some
metal off the end of the sail area only ( Figure 74 ).
g000277
Figure 75
1. Blade 2. Balancer
3. Repeat this procedure until the blade is
balanced.
Installing the Blades
1. Install the bushing through the blade with the
bushing flange on the bottom (grass) side of the
blade (
Figure 76 ).
g255205
Figure 76
1. Bushing
2. Install the bushing/blade assembly into the
spindle shaft (
Figure 77 ).
g298850
Figure 77
1. Top spindle nut 3. Blade bolt
2. Flat of the spindle shaft
3. Apply copper-based lubricant or grease to the
threads of the blade bolt as needed to prevent
seizing. Install the blade bolt finger-tight.
4. Place a wrench on the flat of the spindle shaft
and torque the blade bolt to 75 to 81 N∙m (55
to 60 ft-lb).
Leveling the Mower Deck
Setting up the Machine
Note:
Ensure that the mower deck is level before
matching the height of cut (HOC).
1. Park the machine on a level surface, disengage
the blade-control switch, and engage the parking
brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3. Check tire pressure of the drive tires.
If needed, adjust the rear tire to 152 kPa (22 psi).
4. Position the mower to the 102 mm (4 inches)
height-of-cut position.
Leveling the Center Deck and
Wing Decks
1. Raise the center deck and fold the wings by
pressing down at the rear of the deck-lift switch.
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