OPERATING INSTRUCTIONS
17
MAINTENANCE AND REPAIR INSTRUCTIONS
WARNING: Blade thrust
may occur
when the spinning blade contacts an
object that it does not immediately
cut.
Blade thrust
can be violent
enough to cause the unit and/or
operator to be propelled in any
direction, and possibly lose control
of the unit.
Blade thrust
can occur
without warning if the blade snags,
stalls or binds. This is more likely to
occur in areas where it is difficult to
see the material being cut.
Cutting Blade Operating Tips:
To establish a rhythmic cutting procedure:
• Plant feet firmly, comfortably apart.
• Bring the engine to full throttle before
entering the material to be cut. The blade
has maximum cutting power at full throttle
and is less likely to bind, stall, or cause
blade thrust, which can result in serious
personal injury to the operator or others.
• Cut while swinging the upper part of your
body from right to left.
• Always release the throttle trigger and allow
the engine to return to idle speed when not
cutting. Swing the unit in the same direction
as the blade spins, which increases the
cutting action.
• Move forward to the next area to be cut after
the return swing and plant feet again.
• The brush blade is designed with a second
set of teeth, which can be used by removing
the blade, turning it upside down, and
reinstalling it.
To reduce the chance of material wrapping
around the blade, follow these steps:
• Cut at full throttle.
• Swing the unit into material to be cut from
your right to your left (Fig. 27).
• Avoid the material just cut as you make the
return swing.
Fig. 27
MAINTENANCE SCHEDULE
These required maintenance procedures should
be performed at the frequency stated in the
table. They should also be included as part of
any seasonal tune-up.
For a new engine, change the oil after the first
10 hours
of operation. See
Changing the Oil
(Pg. 22).
WARNING:
To prevent serious
personal injury, never perform any
type of maintenance or repairs with
the unit running or while it is hot.
Allow the unit to cool down.
Disconnect spark plug wire to
make sure the unit will not start.
FREQUENCY
MAINTENANCE REQUIRED
REFER TO:
Daily or Before
Check oil level.
Page 21
Starting Engine
Fill fuel tank with correct type of fuel.
Page 13
Every 10 Hours
Clean and re-oil air filter.
Page 20
Every 25 Hours
Change oil.
Page 22
Every 50 Hours
Check spark plug condition and gap.
Page 23
Every 50 Hours
Check rocker arm to valve clearance
Page 22
and adjust as required
