Mower Maintenance; Servicing The Cutting Blades - Toro TimeCutter HD X5450 Operator's Manual

Mower Maintenance

Servicing the Cutting Blades

To ensure a superior quality of cut, keep the blades sharp. For
convenient sharpening and replacement, keep extra blades
on hand.
Blade Safety
A worn or damaged blade can break, and a piece of the blade
could be thrown toward you or bystanders, resulting in serious
personal injury or death. Trying to repair a damaged blade
may result in discontinued safety certification of the product.
•
Inspect the blades periodically for wear or damage.
•
Use care when checking the blades. Wrap the blades or
wear gloves, and use caution when servicing the blades.
Only replace or sharpen the blades; never straighten or
weld them.
•
On multi-bladed machines, take care as rotating 1 blade
can cause other blades to rotate.
Before Inspecting or Servicing the
Blades
1. Park the machine on a level surface, disengage the
blade-control switch (PTO), and engage the parking
brake.
2. Shut off the engine, remove the key, and disconnect the
spark-plug wires from the spark plugs.
Inspecting the Blades
Service Interval: Before each use or daily
1. Inspect the cutting edges
2. If the edges are not sharp or have nicks, remove and
sharpen the blade; refer to
42).
3. Inspect the blades, especially in the curved area.
4. If you notice any cracks, wear, or a slot forming in this
area, immediately install a new blade
Figure 58
1. Cutting edge
2. Curved area
(Figure 58).
Sharpening the Blades (page
(Figure 58).
g006530
3. Wear/slot forming
4. Crack
Checking for Bent Blades
Note: The machine must be on a level surface for the
following procedure.
1. Raise the mower deck to the highest height-of-cut
position.
2. While wearing thickly padded gloves, or other adequate
hand protection, slowly rotate the blade into a position
that allows you to measure the distance between the
cutting edge and the level surface the machine is on
(Figure 59).
1
2
3
1. Deck
2. Spindle housing
3. Measure from the tip of the blade to the flat surface
(Figure 60).
1
2
1. Blade (in position for measuring)
2. Level surface
3. Measured distance between blade and the surface (A)
4. Rotate the same blade 180 degrees so that the opposing
cutting edge is now in the same position
41
G014972
Figure 59
3. Blade
G014973
3
Figure 60
(Figure
g014972
g014973
61).