Black & Decker 90524916, GH750 User Manual

• DO NOT FORCE THE TOOL – at a rate faster than the rate at which it is able to cut

effectively.

• USE THE RIGHT TOOL – Do not use this tool for any job except that for which it is intended.

• DON’T OVERREACH – Keep proper footing and balance at all times.

• DON’T ABUSE CORD – Don’t yank cord from power supply. Keep cord from heat, oil,

and sharp edges.

• DAMAGE TO UNIT – If you strike or become entangled with a foreign object, stop tool

immediately, unplug, check for damage and have any damage repaired before further operation is attempted. Do not operate with a broken hub or spool.

• DAMAGE TO CORD – Keep power cord away from rotating line. If you damage the cord,

unplug it from the power supply before moving the tool or examining the damage. A damaged cord must be replaced before further use.

• DISCONNECT TOOL – when not in use, when replacing line, or prior to cleaning.

• AVOID DANGEROUS ENVIRONMENTAL CONDITIONS – Do not use electric tools in

damp or wet locations. Follow all instructions in this Instruction Manual for proper operation of your tool. Don’t use the tool in the rain.

• DO NOT OPERATE portable electric tools in gaseous or explosive atmospheres. Motors

in these tools normally spark, and the sparks might ignite fumes.

• STORE IDLE TOOLS INDOORS – When not in use, tools should be stored indoors in a

dry, locked-up place out of reach of children.

• GROUND FAULT CIRCUIT INTERRUPTER (GFCI) protection should be provided on the

circuits or outlets to be used for the gardening appliance. Receptacles are available having built in GFCI protection and may be used for this measure of protection.

• SECURE EXTENSION CORD using the cord retainer shown in Figure 7.

• STAY ALERT – Watch what you are doing. Use common sense. Do not operate tool

when you are tired.

• MAINTAIN APPLIANCES WITH CARE – Follow instructions in maintenance section.

Inspect extension cords periodically and replace if damaged. Keep handles dry, clean and free from oil and grease.

• CHECK DAMAGED PARTS – Before further use of the appliance, a guard or other part

that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting, and any other condition that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by an authorized service center unless otherwise indicated elsewhere in this manual.

WARNING: When servicing double insulated tools, USE ONLY IDENTICAL

REPLACEMENT PARTS. Replace or repair damaged cords.

WARNING: To prevent electrical shock hazard, use only with an extension cord

suitable for outdoor use. Always connect extension cords to a fused line or one protected by a circuit breaker.

ADDITIONAL WARNINGS FOR STRING TRIMMERS

1. DO NOT immerse tool in water or squirt it with a hose. DO NOT allow any liquid to get inside it.

2. Do not store the tool on or adjacent to fertilizers or chemicals.

3. DO NOT clean with a pressure washer.

SAFETY WARNINGS AND INSTRUCTIONS: POLARIZED PLUGS

To reduce the risk of electric shock, this equipment has a polarized plug (one blade is wider than the other) and will require the use of a polarized extension cord. The appliance plug will fit into a polarized extension cord only one way. If the plug does not fit fully into the extension cord, reverse the plug. If the plug still does not fit, obtain a correct polarized extension cord. A polarized extension cord will require the use of a polarized wall outlet. This plug will fit into the polarized wall outlet only one way. If the plug does not fit fully into the wall outlet, reverse the plug. If the plug still does not fit, contact a qualified electrician to install the proper wall outlet. Do not change the equipment plug, extension cord receptacle, or extension cord plug in any way.

SAFETY WARNINGS AND INSTRUCTIONS: EXTENSION CORDS

Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. The table shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord. If the extension will be used outside, the cord must be suitable for outdoor work. The letters “WA” on the cord jacket indicate that the cord is suitable for outdoor use.

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WARNING: IMPORTANT SAFETY WARNINGS AND INSTRUCTIONS

TO REDUCE RISK OF INJURY:

• Before any use, be sure everyone using this tool reads and understands all safety instructions and other information contained in this manual.

• Save these instructions and review frequently prior to use and in instructing others.

WARNING: When using electric gardening appliances, basic safety precautions should

always be followed to reduce risk of fire, electric shock, and personal injury, including the following:

WARNING: Some dust created by this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: • compounds in fertilizers

• compounds in insecticides, herbicides and pesticides

• arsenic and chromium from chemically treated lumber To reduce your exposure to these chemicals, wear approved safety equipment such as dust masks that are specially designed to filter out microscopic particles.

WARNING: This product contains chemicals, including lead, known to the State of

California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling.

READ AND UNDERSTAND ALL INSTRUCTIONS BEFORE USING.

SAFETY GUIDELINES - DEFINITIONS

It is important for you to read and understand this manual. The information it contains relates to protecting YOUR SAFETY and PREVENTING PROBLEMS. The symbols below are used to help you recognize this information.

DANGER: Indicates an imminently hazardous situation which, if not avoided, will result

in death or serious injury.

WARNING: Indicates a potentially hazardous situation which, if not avoided, could result

in death or serious injury.

CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result

in minor or moderate injury.

CAUTION: Used without the safety alert symbol indicates a potentially hazardous situation

which, if not avoided, may result in property damage.

GENERAL SAFETY WARNINGS AND INSTRUCTIONS FOR ALL TOOLS

• ALWAYS WEAR EYE PROTECTION – Wear safety spectacles or goggles at all times

when this tool is plugged in.

• GUARD – Do not use this tool without guard attached.

• DRESS PROPERLY – Do not wear loose clothing or jewelry. They can be caught in

moving parts. Rubber gloves and substantial rubber soled footwear are recommended when working outdoors. Don’t operate the tool when barefoot or wearing open sandals. Wear long pants to protect your legs. Wear protective hair covering to contain long hair.

• NYLON LINE – Keep face, hands and feet clear of rotating nylon line at all times.

• THE ROTATING LINE PERFORMS A CUTTING FUNCTION – Use care when trimming

around screens and desirable plantings.

• KEEP ALL BYSTANDERS AWAY – at a safe distance from work area, especially

children.

• IMPORTANT WARNING – When being used as an Edger, stones, pieces of metal and

other objects can be thrown out at high speed by the line. The tool and guard are designed to reduce the danger. However, the following special precautions should be taken:

• MAKE SURE that other persons and pets are at least 100 feet (30m) away.

• TO REDUCE THE RISK of rebound (ricochet) injury, work going away from any nearby

solid object such as wall, steps, large stone, tree, etc. Use great care when working close to solid objects and where necessary, do edging or trimming by hand.

• AVOID ACCIDENTALLY STARTING – Don’t carry plugged-in tool with finger on trigger.

SAVE THIS MANUAL FOR FUTURE REFERENCE.

KEY INFORMATION YOU SHOULD KNOW:

• The guard must be installed before trimming or edging - if not, the motor will overheat.

• When replacing the line, use only .065 inch

diameter ROUND line - other-

wise the unit will not function properly.

• Do not bump the feed head against the ground - it will disrupt the feed mechanism.

• Angle tool slightly (5

° to 10°) when trimming.

• Always use the cord retention feature.

BEFORE RETURNING THIS PRODUCT

FOR ANY REASON PLEASE CALL

1-800-544-6986

BEFORE YOU CALL, HAVE THE CATALOG No. AND DATE CODE AVAILABLE. IN MOST CASES, A

BLACK & DECKER REPRESENTATIVE CAN RESOLVE THE PROBLEM OVER THE PHONE. IF YOU HAVE A

SUGGESTION OR COMMENT, GIVE US ACALL. YOUR FEEDBACK IS VITALTO BLACK & DECKER.

HANK

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Minimum Gauge for Cord Sets

Volts Total Length of Cord in Feet

120V 0-25 26-50 51-100 101-150

(0-7,6m) (7,6-15,2m) (15,2-30,4m) (30,4-45,7m)

240V 0-50 51-100 101-200 201-300

(0-15,2m) (15,2-30,4m) (30,4-60,9m) (60,9-91,4m)

Ampere Rating

More Not more American Wire Gage Than Than 0-6 18 16 16 14 6 - 10 18 16 14 12 10 - 12 16 16 14 12 12 - 16 14 12 Not Recommended

INSTRUCTION MANUAL

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SAVE THESE INSTRUCTIONS

ASSEMBLY / ADJUSTMENT SET-UP

ASSEMBLY TOOLS REQUIRED (NOT SUPPLIED):

- Phillips Screwdriver

ATTACHING THE TWO PIECE GUARD

WARNING: UNPLUG THE TOOL BEFORE ATTEMPTING TO ATTACH THE GUARD.

NEVER OPERATE TOOL WITHOUT GUARD FIRMLY IN PLACE. THE GUARD MUST ALWAYS BE ON THE TOOL TO PROTECT THE USER.

• Remove the two guard sections from the carton.

• Attach the first guard section with side tab into the groove around the housing as shown in figure 1. Align the hole in the guard with the post on the trimmer housing.

• Remove the screw from the second guard section.

• Insert the top tab from the second guard section into the first guard section as shown in

figure 2. NOTE: The rib behind the tab should be hooked over the rib of the first guard section. (See inset figure 2).

• Insert the side tab from the first guard section into the slot of the second guard section until you hear them “snap” together (figure 3).

• Insert the

inch (19mm) screw as shown in figure 4 to complete the guard assembly.

• Once the guard is installed, remove the covering from the line cut-off blade, located on the edge of the second guard section.

ATTACHING THE AUXILIARY HANDLE

• Attach the handle to the metal shaft of the trimmer (with the Black & Decker logo facing

upward) by pushing it onto the shaft from the side. Once it is pushed onto the metal shaft, the handle can be turned into the correct orientation .

• Insert the 2-1/2 inch (63.5mm) bolt through the holes in the handle and thread on the plastic

knob as shown in figure 5.

• For maximum comfort and control, adjust the auxiliary handle to suit your height. Shorter

users adjust handle to a lower position (away from you) and taller users, adjust handle to an upper position (towards you). The handle should be adjusted so that your front arm is straight when the trimmer is in the working position.

HEIGHT ADJUSTMENT

• The overall height of the trimmer can be adjusted by pressing the button shown in figure 6

and moving the metal tube up or down into one of the three rectangular recesses in the tube until you hear it “snap” into place. CAUTION: Confirm that the tube is locked in place by releasing the button and pushing down on the tube.

ATTACHING EXTENSION CORD

• An extension cord retainer (figure 7) is built into the switch handle that prevents the cord

from coming unplugged. To use this feature, simply double the extension cord about 8 inches (203mm) from the end, and insert it into the slot in the bottom of the handle area. Hook the loop formed by doubling the cord over the tab. Gently tug on the cord to insure that it is firmly retained in the trimmer’s handle. Plug the receptacle end of the extension cord into the plug blades in the trimmer.

OPERATING INSTRUCTIONS

WARNING:

Always use proper eye protection that conforms to ANSI Z87.1 (CAN/CSA

Z94.3) while operating this power tool.

CAUTION: Inspect area to be trimmed and remove any wire, cord, or string-like objects

which could become entangled in the rotating line or spool. Be particularly careful to avoid any wire which might be bent outwardly into the path of the tool, such as barbs at the base of a chain link fence.

SWITCHING ON AND OFF

• To switch the tool on, squeeze the trigger lever.

• To switch the tool off, release the trigger lever.

• With the unit on, angle unit and slowly swing the trimmer side to side as shown in figure 8.

• To operate as a maintenance edger, unplug the unit from the power source. Push the button and rotate the tube 180° as shown in figure 6. The tool will lock in position. Gently pull the wire edge guide down into place as shown in figure 9 and position the trimmer above the surface as shown in figure 9.

• Return to the trimming position by unplugging the unit from the power source, pushing the button and rotating the tube back 180°. The tool will lock in the trimmer position. When using the tool return the wire edge guide to the original position, out of the way.

BLOWER FUNCTION (GH750 ONLY- FIGURE 10)

The GH750 funnels the air created by the motor up through the guard creating a built-in sweeper. This feature can be used to blow grass clippings off of sidewalks and other hard surface areas.

CUTTING LINE / LINE FEEDING

Your trimmer uses .065 inch (1.65 mm) diameter, ROUND nylon line. During use, the tips of the nylon lines will become frayed and worn and the special self feeding line hub will automatically feed and trim a fresh length of line. Cutting line will wear faster and require more feeding if the cutting or edging is done along sidewalks or other abrasive surfaces or heavier weeds are being cut. The advanced automatic line feeding mechanism senses when more cutting line is needed and feeds and trims the correct length of line whenever it’s required. DO NOT BUMP unit on ground in attempt to feed line or for any other purposes.

FITTING A NEW SPOOL OF AFS CUTTING LINE (FIGURES 11 & 12)

• Unplug the tool.

• Depress the tabs (a) and remove the cassette (b) from the cassette housing (c) in the trimmer head (figure 11).

• Grasp empty spool (d) with one hand and cassette with other hand and pull spool out from cassette. If lever (e) in base of cassette becomes dislodged, replace in correct position before inserting new spool into cassette.

• Remove any dirt and grass from the cassette and housing.

• Take the new spool and push it onto the boss (f) (figure 12) in the cassette. Rotate the spool slightly until it is seated.

• Unfasten the end of one of the cutting lines and guide the line into one of the eyelets (g). figure 12. The line should protrude approximately 4-3/8 inches (111mm) from the cassette.

• Unfasten the end of the other cutting line and guide the line into the other eyelet. The line should protrude approximately 4-3/8 inches (111mm) from the cassette.

• Align the cassette tabs (a) with the slots (h) in the housing (figure 11).

• Push the cassette onto the housing until it snaps securely into place.

CAUTION: To avoid tool damage, If the cutting lines protrude beyond the trimming blade (i), cut them off so that they just reach the blade (figure 11).

WINDING NEW LINE ONTO AN EMPTY SPOOL (FIGURES 13 &14)

You may wind new cutting line onto an empty spool. Replacement packs of .065 inch (1.65 mm) cutting line are available from your local dealer.

• Remove the empty spool from the tool as described in “FITTING A NEW SPOOL OF AFS CUTTING LINE”.

• Remove any remaining cutting line from the spool.

• First wind new line onto the uppermost part of the spool.

- Feed 3/4 inch (19mm) of cutting line into one of the line anchoring slots.

- Wind the cutting line onto the spool in the direction of the arrow on the spool.

Make sure to wind the line on neatly and in layers. Do not crisscross (figure 13).

- When the wound cutting line reaches the recesses (j), cut the line. (figure 14).

- Temporarily park the line in the holding slots (k) on one side of the spool as shown in the inset

in figure 14.

• Repeat the above procedure for the second cutting line on the lower section of the spool.

• Fit the spool onto the tool as described in “FITTING A NEW SPOOL OF CUTTING LINE”.

CAUTION: Before you begin trimming, only use the appropriate type of cutting line.

Ensure that cutting line is present in both sections of the spool (figure 12).

IMPORTANT: To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment should be performed by authorized service centers or other qualified service organizations, always using identical replacement parts.

ACCESSORIES

Use Black & Decker replacement spool Model No. DF-065. Reload nylon line (either bulk or prewound replacement spool) as shown in this manual.

• USE ONLY .065 inch (1.65 mm) DIAMETER NYLON MONOFILAMENT LINE. Do not use

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