28
Caution
Someone could accidently start the engine and seriously injure you or other bystanders.
Disconnect the wires from the spark plugs before you do any maintenance. Set the wire aside so
that it does not accidentally contact the spark plug.
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.
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 blades periodically for wear or
damage.
•
Replace a worn or damaged blade.
Warning
Before Inspecting or Servicing the Blades
1.
Park the machine on a level surface and disengage the
blade control (PTO).
2.
Disengage the power take off (PTO) and turn the engine
off.
3.
Wait for all moving parts to stop before leaving the
operating position. Set the parking brake.
Inspecting the Blades
1.
Inspect the cutting edges (Fig 28). If the edges are not
sharp or have nicks, remove and sharpen the blades.
Refer to Sharpening the Blades, page 29.
1
2
3
m–151
Figure 28
1. Cutting edge
2. Curved area
3. Wear/slot forming
2.
Inspect the blades, especially the curved area (Fig. 28).
If you notice any damage, wear, or a slot forming in this
area (item 3 in Fig. 28), immediately install a new
blade.
Checking for Bent Blades
1.
Rotate the blades until the ends face forward and
backward (Fig. 29).
Front
C
D
m–1078
C
C
D
D
Figure 29
2.
Measure from a level surface to the cutting edge of the
blades (Fig. 30). Note this dimension.