15
BRUSH CUTTER
MAINTENANCE
FIGURE 5
BLADES
Service:
Stop engine and remove spark plug wire before servic-
ing blade.
Wear leather or thickly padded gloves to prevent injury
from the blade. Keep hands clear of the blade path
:
Use an impact wrench to remove the blade bolt
F
. If an
impact wrench is not available; use a socket on a long
breaker bar or a box wrench to loosen the blade bolt. If
additional leverage is needed, slip a pipe or thick walled
tube over the breaker bar or wrench.
•
Check blade for damage.
•
Replace broken, bent, cracked or otherwise
damaged blade.
•
Do not weld or straighten blade.
•
If the blade is good, it may be turned over to use the
second set of cutting edges.
•
If all edges are dull, the blade may be sharpened or
replaced.
•
Use of another manufacturer’s blades may be
dangerous.
Sharpening:
Wear the appropriate personal protective equipment
when sharpening the blade.
•
Inspect the blade before sharpening..
•
Replace broken, bent , cracked or otherwise
damaged blade.
•
Do not weld or straighten blade.
•
Maintain cut angle of 30º.
•
Do not over heat blades when sharpening.
Blade Balance:
Maintain blade balance at 5/8 oz-in (19.4 g-cm) or
less. Failure to keep blades balanced causes excess
vibration, wear and shortened life of most components
of the machine.
To balance a blade:
1.
Sharpen blade first
2. Balance the blade at the center.
3. Attach a 1/8 oz. (3.9 g) weight at a distance of 5”
(127mm) from center on the light end. This should
make the light end the heavy end.
- If it does, the blade is balanced.
- If it does not, file or grind the heavy end until
the addition of the weight makes the light end the
heavy end.
30.0
TYP
º
70 ft. lbs.
Summary of Contents for BRC-24 HYDRO
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