TrimmerPlus BC720 Manuel De L'opérateur page 2

RULES FOR SAFE OPERATION
could occur.
• Do not attempt to touch or stop the blade when it is rotating.
• A coasting blade can cause injury while it continues to spin after the engine is stopped or the throttle
trigger is released. Maintain proper control until the blade has completely stopped rotating.
• Do not run the unit at high speed when not cutting.
• If striking or become entangled with a foreign object, stop the engine immediately and check for damage.
Have any damage repaired before attempting further operations. Do not operate unit with a bent, cracked
or dull blade. Discard blades that are bent, warped, cracked or broken.
• Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break off while in use.
This can result in severe personal injury. Replace the blade.
• Do not use the cutting blade for edging or as an edger; severe personal injury to yourself or others may
incur. Use the cutting blade only for the purpose described in this manual.
• Stop the engine IMMEDIATELY if excessive vibration is felt. Vibration is a sign of trouble. Inspect thoroughly
for loose nuts, bolts or damage before continuing. Repair or replace affected parts as necessary.
After Use
• Clean cutting blade with a household cleaner to remove any gum buildup. Oil the blade with machine oil
to prevent rust.
• Lock up and store the cutting blade in an appropriate area to protect the blade from unauthorized use or
damage.
OTHER SAFETY WARNINGS
• Never store a fueled unit inside a building where fumes may reach an open flame or spark.
• Allow the engine to cool before storing or transporting. Be sure to secure the unit while transporting.
• Store the unit in a dry area, locked up or up high to prevent unauthorized use or damage, out of the reach
of children.
• Never douse or squirt the unit with water or any other liquid. Keep handles dry, clean and free from
debris. Clean after each use, see Cleaning and Storage instructions.
• Keep these instructions. Refer to them often and use them to instruct other users. If loaning someone this
unit, also loan them these instructions.
SAVE THESE INSTRUCTIONS
• SAFETY AND INTERNATIONAL SYMBOLS •
This operator's manual describes safety and international symbols and pictographs that may appear on this product.
Read the operator's manual for complete safety, assembly, operating, maintenance, and repair information.
SYMBOL MEANING
• SAFETY ALERT SYMBOL
Indicates danger, warning or caution. May be used in conjunction with other symbols
or pictographs.
• READ OPERATOR'S MANUAL
WARNING:
Read the operator's manual(s) and follow all warnings and safety
instructions. Failure to do so can result in serious injury to the operator and/or bystanders.
• WEAR EYE AND HEARING PROTECTION
WARNING:
Thrown objects and loud noise can cause severe eye injury and hearing
loss. Wear eye protection meeting ANSI Z87.1-1989 standards and ear protection
when operating this unit. Use a full face shield when needed.
• BRUSHCUTTERS—REPLACE DULL BLADE
Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to
break off while in use. This can result in severe personal injury.
• THROWN OBJECTS AND ROTATING CUTTER CAN CAUSE SEVERE INJURY
WARNING:
Small objects can be propelled at high speed, causing injury. Keep
away from the rotating rotor.
• KEEP BYSTANDERS AWAY
WARNING:
Keep all bystanders, especially children and pets, at least 50 feet (15 m.)
from the operating area.
• TRIMMER/BRUSHCUTTER SAFETY
WARNING:
Thrown objects and rotating cutter can cause severe injury. Keep
bystanders, especially children and pets, at least 50 feet (15 m) away from the cutting
area. The cutting attachment shield must be used when using the trimmer cutting
attachment.
KNOW YOUR UNIT
Shoulder
Harness Loop
Shoulder Harness
Gearbox
Brush Blade
ASSEMBLY INSTRUCTIONS
Before using the BC720 add-on, some
adjustments must be made to the trimmer. Such
as:
• Remove the current assist handle
• Install the supplied 24" J-handle
• Install the shoulder strap clip (if necessary)
• Attach/adjust the shoulder strap
REMOVING THE CURRENT ASSIST HANDLE
The trimmer may be configured with one of several
types of assist handles. The current assist handle must be removed and the 24" J-handle, which is included, must be
installed in order to use this add-on.
Follow the instructions outlined in the trimmer's operator's manual in order to remove the current handle and its
clamps, screws, nuts, bolts or other hardware.
NOTE: The trimmer may be equipped with a small J–handle. This small handle is NOT an acceptable substitute for
the larger J-handle that is included with the BC720. Remove the smaller J-handle so the larger, 24-inch
handle may be installed.
INSTALL AND ADJUST THE 24" J-HANDLE
Installing
1. Remove the screws, nuts, clamp pieces that were installed on the J-handle for shipping.
2. Hold the bottom clamp to the underside of the shaft housing, about 7-8" from the shaft grip (Fig. 1).
3. Place the J-handle between the top and middle clamp pieces (Fig. 1).
2
Hanger
Lower Shaft
Housing
24 in. J-Handle
Assembly w/ Hardware
Locking Rod
Blade Shield
Screws (4)
Decal
Top Clamp
J-Handle
Middle
Bottom
Clamp
Clamp
Nuts (4)
Fig. 1
4. While holding the three pieces together, install
the four (4) screws through the top clamp and
into middle clamp.
NOTE: The holes in the top and middle clamp will
line up only when assembled correctly.
5. Place the clamps and J-handle the over the
shaft housing and onto the bottom clamp.
6. Hold each hex nut in the bottom clamp recess
with a finger. Start screws with a large Phillips
screwdriver. Do not tighten until making the
handle adjustment.
Adjusting
7. Loosen the screws so that the J-handle can be easily moved in the clamp
assembly. Do not remove the screws or nuts.
8. Slide the J-handle in or out until the arrow/white line on the decal touches the
clamp assembly (Fig. 2).
9. While holding the unit in the operating position (Fig. 11), move the J-handle to the
location that provides the best grip.
10. Tighten the clamp screws evenly, until the J-handle is secure.
NOTE: Once the new J-handle is installed, there is no need to change back to the
original handle.
INSTALL THE SHOULDER HARNESS LOOP
When operating the BC720 add-on, the shoulder harness must be used that was
provided with this add-on.
Check to see if the trimmer has a wire form support fitting that the shoulder strap can
clip to. If the unit has the fitting that is shown in Figure 3, the provided harness loop
does not need to be installed. If so, proceed to the next section Install the Shoulder
Harness.
If the trimmer does not have an existing wire form fitting, the provided harness loop
must be installed.
To install the supplied shoulder harness clip:
1. Remove the bolt, nut and washer that were installed on the harness loop for
shipping. Keep them handy.
2. Pull the clamp open and push it onto the boom.
3. Arrange the clip so that it is close to the shaft grip and away from the J-handle
(Fig. 4).
4. Insert the bolt through the clip and secure it with the washer and nut, using a pair
of pliers and a small crescent wrench.
INSTALL THE SHOULDER HARNESS
1. Push the strap through the center of the buckle.
2. Pull the strap over the cross bar and down through the slot in the buckle (Fig. 5).
3. Put the harness on over head and onto the left shoulder. Snap it on to the support fitting (Fig. 6).
4. Adjust length to fit the operator's size. Pull tab to lengthen, pull strap to shorten (Fig. 7).
OPERATING THE EZ-LINK™ SYSTEM
The EZ-Link™ system enables the use of these optional Add-Ons.
Mach 4® Trimmer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AF720
Hedge Trimmer*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AH720*
Bladed Pruner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BP720
Blower Trimmer* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BT720*
Blower Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BV720
Cultivator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GC720
Lawn Dethatcher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LD720
Edger*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LE720*
Pole Saw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PS720
Straight Shaft Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SS725
Snow Thrower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST720
Turbo Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TB720
* Do NOT use this Add-On with an electric powered unit.
REMOVING THE ADD-ON
1. Turn the knob counterclockwise to loosen (Fig. 10).
2. Press and hold the release button (Fig. 8).
3. While firmly holding the upper shaft housing,
pull the lower shaft housing straight out of the
EZ-Link™ coupler (Fig. 9).
INSTALLING THE ADD-ON
NOTE: To make installing or removing the add-
on easier, place the unit on the ground
or on a work bench.
1. Turn knob counterclockwise to loosen (Fig. 10).
2. While firmly holding the add-on, push it straight into the EZ-Link™ coupler (Fig. 9).
NOTE: Aligning the release button with the guide recess will help installation (Fig. 8).
3. Turn the knob clockwise to tighten (Fig. 10).
For decorative trimming/edging with the line cutting head, lock the release button
into the 90° hole (Fig. 10).
HOLDING THE UNIT
WARNING:
of injury when operating this unit.
Before operating the unit, stand in the operating position (Fig. 11). Check for the following:
• The operator is wearing eye protection and proper clothing
• With a slightly-bent right arm, the operator's right hand is holding the shaft grip
• The operator's left arm is straight, the left hand holding the J-handle
• The unit is at waist level
• The cutting blade is parallel to the ground and easily contacts the weeds or brush
without the need to bend over
WARNING:
Severe personal injury to the operator or others can result.
Once in the operating position, hook the shoulder strap to the unit. Check the length of the strap before operating. If it
needs adjustment, refer to Install the Shoulder Harness section of this manual.
USING THE CUTTING BLADE
To establish a rhythmic cutting procedure:
• Plant feet firmly, comfortably apart.
• Bring the engine to full throttle before entering the material to be cut. At full throttle the blade has maximum cutting power
and is less likely to bind, stall or cause blade thrust (which can result in serious personal injury to the operator or others).
WARNING:
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.
• Cut while swinging the upper body from left to right.
• Maneuver the unit in the opposite direction as the blade spins, which increases the cutting action.
• After the return swing, move forward to the next area to be cut plant feet again.
• Always release the throttle trigger and allow the engine to return to idle speed when not cutting.
WARNING:
serious personal injury if accidentally touched.
• When finished, always unsnap the unit from the harness before taking off the harness.
• The cutting blade is designed with a second cutting edge which can be used by turning the blade over.
Fig. 2
WARNING:
off while in use. This can cause severe personal injury to the operator or any bystanders. Replace the
blade.
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 left to right (Fig. 12)
• Avoid the material just cut on the return swing
WARNING:
running or blade turning. To avoid serious personal injury, turn off the
engine. Allow the blade to stop before removing materials wrapped
around the blade shaft.
ASSEMBLY INSTRUCTIONS
Wire Form
Support
Fig. 3
EZ-Link™ Coupler
Guide Recess
Fig. 8
OPERATING INSTRUCTIONS
Always wear eye, hearing, foot, body protection and the shoulder strap to reduce the risk
Do not use the cutting blade for edging or as an edger.
Blade thrust may occur when the spinning blade contacts an object that it does not
The blade continues to spin after the engine is turned off. The coasting blade can cause
Do not sharpen the cutting blade. Sharpening the blade can cause the blade tip to break
Do not clear away any cut material with the engine
Upper Boom
Harness
Fitting
Loop
Shaft
Grip
Nut
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Primary Hole
Release
Button
Upper Shaft Lower Shaft
Housing Housing
Fig. 9
90˚ Edging Hole
(Trimmer Only)
Knob
Fig. 10
Fig. 11
Fig. 12