Servicing The Cutting Blades - Toro Z Master Professional 7000 Series Operator's Manual

5. Record this measurement.
6. The mower blade should be 6 to 10 mm (1/4 to
3/8 inch) lower at position A than at position B
(Figure 76). If it is not correct, proceed to the
following steps.
Note:
Both of the front swivels need to be
adjusted the same amount to maintain equal
chain tension.
7. Loosen the front swivel jam nuts, at the front of
the right and left swivels, approximately a 13
mm (1/2 inch) (Figure
8. Adjust the lift nuts on both the left and the right
side of the machine to achieve 6 to 10 mm (1/4
to 3/8 inch) lower in front at A than in the rear
at B (Figure 75).
9. Tighten both swivel jam nuts against the front
swivel to lock the height.
10. Check to make sure there is equal tension on
the chains and adjust again if needed.
Adjusting the Compression Spring
1. Raise the mower lift lever to the transport
position.
2. Check the distance between the 2 large
washers, it needs to be 29.2 cm (11-1/2 inches)
(Figure 77).
3. Adjust this distance, by loosening the spring-jam
nut and turning the nut in front of each spring
(Figure 77). If you turn the nut clockwise the
spring shortens; counter-clockwise lengthens
the spring.
4. Lock the nut into position by tightening the
spring-jam nut (Figure
75).
77).
1. 29.2 cm (11–1/2 inches)
between the large washers
2. Front nut
3. Spring-jam nut
4. Front swivel
Servicing the Cutting
Blades
Maintain sharp blades throughout the cutting season
because sharp blades cut cleanly without tearing or
shredding the grass blades. Tearing and shredding
turns grass brown at the edges, which slows growth
and increases the chance of disease.
Check the cutter blades daily for sharpness, and
for any wear or damage. File down any nicks and
sharpen the blades as necessary. If a blade is
damaged or worn, replace it immediately with a
genuine Toro replacement blade. For convenient
sharpening and replacement, you may want to keep
extra blades on hand.
DANGER
A worn or damaged blade can break, and a
piece of the blade could be thrown into the
operator's or bystander's area, resulting in
serious personal injury or death.
• Inspect the blade periodically for wear or
damage.
• Replace a worn or damaged blade.
Before Inspecting or Servicing the
Blades
1. Park the machine on a level surface, disengage
the blade control (PTO), and set the parking
brake.
59
Figure 77
5. Swivel jam nut
6. Lift nut
7. Front-support arm
8. Large washer
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