PROF PROFYT9021-12, Instruction Manual

Page: 13 / 40

13
CUTTING METHOD
Use the front left side cutting.
Guide the blade from your right to left with it tilted
slightly to your left.
When mowing a wide area, start working from your left
end to avoid interference of cut grass.
The blade may be seized by weeds if the engine speed
is too low, or the blade cuts too deep into weeds. Adjust
the engine speed and cutting depth according to the
condition of object.
WARNING! If the grass or other object gets caught in
the blade, or if the unit starts to shake or vibrate, turn
off the engine and check the whole unit. Change the
blade if it has been damaged.
Turn off the engine, disconnect the spark plug and
make sure the blade has completely stopped before
checking the blade.
CONTROLLING BLADE BOUNCE
Kick out can cause serious personal injury. Carefully
study this section. It is important that you understand
what causes kick out, how you can reduce the chance
of kick out and how you can remain in control of the unit
if kick out does occur.
Kick out can occur when the moving blade contacts an
object that it cannot cut. This contact causes the blade
to stop for an instant and then suddenly move or
”bounce” away from the object that was hit. The
operator can lose control of the unit and the blade can
cause serious personal injury to the operator or any
person nearby if the blade contacts any part of the
body.
REDUCING KICK OUT
Recognize that kick out can happen. By understanding
and knowing about bounce, you can help eliminate the
element of surprise.
Cut fibrous weeds and grass only. Do not let the blade
contact materials it cannot cut such as hard, woody
vines and brush or rocks, fences, metal, etc.
Be extra prepared for bounce if you must cut where you
cannot see the blade making contact such as in areas
of dense growth.
Keep the blade sharp. A dull blade increase the chance
of bounce.
Avoid feeding the blade too rapidly. The blade can
bounce away from material being cut if the blade is fed
faster than its cutting capability.
Cut only from your right to your left.
Keep your path of advance clear of material that has
been cut and other debris.
MAINTAINING CONTROL
Keep a good, firm grip on the unit with both hands. A
firm grip can help neutralize bounce. Keep your right
and left hands completely around the respective
handles.
Keep both feet spread apart in a comfortable stance
and yet braced for the possibility that the unit could
bounce. Do not overreach. Keep firm footing and
balance.
MAINTENANCE
WARNING!
Use only original manufacturer's
replacement parts, accessories and attachments.
Failure to do so can cause poor performance, possible
injury and may void your warranty.
Turn off the engine and pull off the spark plug
connector.
Wear protective gloves.
SPOOL REPLACEMENT
Line diameter: ø2.5mm x 2m
Stop the engine, disconnect the spark plug wire.
Hold the line head and unscrew the spool retaining knob
in a anticlockwise direction.
Remove the empty spool from the string head. Keep the
line attached to the spool, Fig 20.
To install the new spool, make sure the two lines are
captured in the slots opposite each other on the spool
and each line is extended approximately 152 mm
beyond each slot.
Thread the strings into the spool holes in the line head.
Carefully push the spool into the line head (gently pull
the lines to the outside if necessary). When the spool is
positioned in line string head, grasp the strings and pull
sharply to release them from the slots in the spool.
Screw on the spool retaining knob in a clockwise
direction making sure it is securely fastened.
REPLACING & CLEANING THE AIR FILTER
For proper performance and long life, keep the air filter
clean.
Remove the air filter cover by squeezing down on the
latch with your thumb while gently pulling on the cover,
Fig. 21.
Remove the filter, clean it in warm soapy water. Rinse
and let dry completely. For best performance, replace
annually, Fig. 22.
Reinstall the filter.
Replace the air filter cover by inserting the tabs on the
bottom of the cover into the slots on the air filter base;
push the cover up until it latches securely in place.
FUEL CAP
WARNING!
A leaking fuel cap is a fire hazard and must
be replaced immediately.
The fuel cap contains a non-serviceable filter and a
check valve. A clogged fuel filter will cause poor engine
performance. If performance improves when the fuel
cap is loosened, check valve may be faulty or filter
clogged. Replace the fuel cap if required.