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Black & Decker GL300 User Manual

Black & Decker GL300 User Manual

23cm string trimmer
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This manual is applicable for -B1 & -TW only
Black & Decker Copyright 2004 (MAY-04)
23cm String Trimmer
Technical Data
String Trimmer
Power Input
No Load Speed
Cable Length
The following symbols are used throughout this manual:
Donates risk of personal injury, loss of life or damage to the tool in case of non-observance of the
instructions in this manual.
Denotes risk of electric shock
Intended Use
Your Black & Decker string trimmer has been designed for light trimming and finishing lawn edges and to
cut grass in confined spaces. This tool is intended for consumer use only.
Safety Instructions
Warning! When using mains-powered appliances, basic safety precautions, including the following,
should always be followed to reduce the risk of fire, electric shock and personal injury.
Read this entire manual carefully before operating the appliance.
Before operating the appliance, make sure that you know how to switch it off in an emergency.
The intended use is described in this manual. The use of any accessory or attachment or performance
of any operation with this applicance other than those recommended in this instruction manual may
present a risk of personal injury.
Retain this manual for future reference.
Work Area
Do not expose the appliance to rain. Do not use the appliance in damp or wet conditions.
Only use the appliance in daylight or good artificial light.
Personal Protection
Wear stout shoes or boots to protect your feet. Do not operate the appliance wearing open-toed sandals
or when barefoot.
Wear long trousers to protect your legs.
Using Your Appliance
Be sure that the appliance is switched off when plugging in.
Stay alert. Watch what you are doing. Use common sense.
Do not operate the appliance when you are tired.
If the appliance begins to vibrate abnormally, switch it off and remove the plug from the socket. Allow
rotating parts to stop and inspect the appliance for damage and loose parts.
Never pull the cord to disconnect the plug from the socket. Keep the cord away from heat, oil and sharp
If the mains cable is damaged during use, switch the appliance off and disconnect the plug from the
mains immediately. Do not touch the mains cable before disconnecting from the mains.
Safety of Others
Do not allow children or any person unfamiliar with these instructions to operate the appliance.
Do not allow children, visitors or animals to come near the work area or to touch the appliance or mains
Remember that the operator may be held responsible for accidents or hazards occurring to other people
or their property.
After Use
Switch off, remove the plug from the socket and ensure that moving parts have stopped rotating before
leaving the appliance unattended and before changing, cleaning or inspecting any parts of the appliance.
When not in use, the appliance should be stored in a dry place. Children should not have access to stored
Inspection and Repairs
Before use, check the appliance for damaged or defective parts. Check for misalignment and seizure of
moving parts, breakage of parts, damage to guards and switches and any other conditions that may
affect its operation.
Do not use the appliance if any part is damaged or defective. Do not use the appliance if the switch
does not turn it on and off.
Never use the appliance when any guard or enclosure is damaged or not in place.
Ensure that the appliance will operate properly and perform its intended function.
Have any damaged or defective parts repaired or replaced by an authorized repair agent.
Before use, check the mains cable for signs of damage, ageing and wear.
Do not use the appliance if the mains cable is damged or defective.
If the mains cable is damaged or defective it must be repaired by an authorized repair agent to avoid a
Never attempt to remove or replace any parts other than those specified in this manual.
Electrical Safety
This tool is double insulated; therefore no earth wire is required. Always check that the power supply
corresponds to the voltage on the rating plate.
Using an Extension Cable
An extension cable should not be used unless absolutely necessary. Use of an improper extension cable
could result in a risk of fire and electric shock. If an extension cable must be used, use only those that are
approved by the country's Electrical Authority and ensure it is suitable for outdoor use. Make sure that
extension cord is in good condition before using. Always use the cord that is suitable for the power input of
your tool (see technical data on name plate).
When using a cable reel, always unwind the cable completely.
Additional Safety Instructions for Grass Trimmers
The following warning symbols may be found on the appliance:
Read the manual prior to operation.
Keep people and animals at least 6 m away from the cutting area.
Wear safety glasses or goggles when operating this tool.
Always switch off and remove the plug if the supply cable has become damaged or entangled.
The trimmer will continue to run for a short time after releasing the switch lever. Always allow
your trimmer to stop on its own.
Do not expose the appliance to rain or high humidity.
Before using the appliance, check that your cutting path is free from sticks, stones, wire and any other
Only use the appliance in the correct position, with the cutting line near the ground, as shown in the
illustrations. Never switch the appliance on in any other position.
Switch on the appliance only when hands and feet are away from the cutting line.
Avoid body contact with the cutting line while the appliance is running.
Do not work on steep slopes. Be sure of your footing. Be aware that freshly cut grass is damp and slippery.
Take care when trimming near borders and gravel paths or roads, as stones and soil may be moved by
the cutting line.
Do not put the appliance down until the cutting line has come to a complete standstill.
Use only the appropriate type of Black & Decker cutting line. Never use metal cutting line or fishing line.
After extending new cutting line, always return the appliance to its normal operating position before
switching on.
Take care to keep the mains cable away from the cutting line. Always be aware of the position of the
Features (Fig. A)
This tool includes the following features:
On/off paddle switch
Lock-off button
Cable restraint
Upper telescopic shaft
Lower shaft
Bump cap
Nylon line
10. Adjustment knob
11. Shaft Release button
12. Secondary handle
13. Cable
Warning! Before assembly, make sure that the tool is switched off and unplugged.
Fitting & Removing the Shaft (Fig. B)
To fit the shaft of the tool, simply insert the upper shaft (5) into the lower shaft (6) until you hear a click.
To remove the upper shaft from the lower shaft by pushing the shaft release button (11) to the right and
pull it out.
Fitting the Guard (Fig. C)
Set the guard (7) in the lower shaft (6), turning until choke the grooves (14) and the holes on the guard
align with the holes on the lower shaft. Fit tightly with the two screws & rings (15).
The wide section of the guard has to be inside, in the side of your feet (see fig. A).
Fitting a New Spool of Cutting Line (Fig. D)
Remove cap (16) by pushing the two tabs (17) in and up, and then lift off. (It is not necessary to push
both tabs in at the same time). Remove the empty spool (18) from the housing.
Remove any debris and grass buildup that may be inside the cap and on the inside of the hole in the
Unwind about 75mm (3") of line from the spool and hold it in one of the two notches (19).
Holding the line in the gap, insert the end through the eyelet in the hub and slip the spool into the hub.
If the spool does not slip into the hub easily, press gently and pull straight out on the cutting line that
protrudes through the eyelet.
Install cap by pushing both tabs (17) into the hub as shown at once. Make sure that the spring (22) is
in place on the hub and that both tabs are snapped in one place.
Pull line out by hand until tight. The line trimming blade (23) will automatically-trim excess line to the proper
length. (Make sure you'll remove the yellow blade protective cap before use). The line should extend
out no further than the guard.
You are now ready to resume trimming.
Instruction for Use
Warning! Always observe the safety instructons and applicable regulations.
Setting the Tool to Trimming or Edging Mode (Fig. F, G)
The tool can be used in trimming mode as shown in fig. F or in edging mode to trim overhanging grass along
lawn edges and flowerbeds as shown in fig. G.
Trimming Mode
For trimming, the trimmer head should be in the position shown in fig. F.
Edging Mode
For edging, the trimmer head should be in the position shown in fig. G. If it is not:
Push the shaft release button (11) to the right and pull the upper shaft out.
Turn the upper shaft 180* left or right and refit the to the lower shaft. Procedure as in "Assembly the
Shaft" above.
Adjusting the Telescoping Height (Fig. B)
This tool has a telescopic mechanism, allowing you to set it to a comfortable height. To adjust the height
setting, proceed as follow:
Rotate counterclockwise the adjustment knob (10) to release and pull up the upper shaft (5) to adjust
the telescoping shaft until suit your height comfortably.
Rotate clockwise the knob and fit tight.
Switching On and Off (Fig. H)
To switch the tool on, push the lock-off button (2) and the on/off paddle (1) simultaneously. When the
tool is started, you can release the lock-off button.
To switch the tool off, release the on/off paddle.
Line Feeding Procedure (Fig. D)
In order to feed a length of cutting line, strike the bump cap (8) on the lawn while the trimmer is running.
This will automatically feed a new length of line and trim it to the correct length. A firm but gentle motion
should be used to strike the bump cap.
The unit should be angled slightly forward to prevent the guard from contacting the ground.
This process may be repeated as often as necessary. If until fails to feed, unplug extension cord at trimmer
and clean out the bump cap.
For best performance, as the line wears, lengthen as indicated in Line Feeding Procedure.
Hints for Optimum Use
Tilt trimmer at a slight angle from the ground.
Lower to grass or weeds you intend to cut. (If they are over 20cm (8") high, start cutting at top.)
Slowly swing unit into and out of area being cut, holding the unit off the ground at desired cutting height.
IMPORTANT: for the best cutting action against walls, fences and in high grass, move trimmer slowly
so grass is cut WITH THE TIP of the high speed nylon line.
Avoid running trimmer with hub in contact with ground.
Trim only when grass and weeds are dry.
The life of your nylon line is dependent upon following the above usage hints, as well as what is
being cut, and where the cutting is being done. e.g. line will wear faster when run against a foundation
wall as compared to trimming around a tree.
Some line breakage will occur from feeding unit too fast, from entanglement with foreign matter, from
normal line fatigue, and from attempting to cut thick, stalky weeds in excess of unit's capability.
Note: As the weather becomes cooler, the tendency for the nylon line to break becomes greater.
Caution: Inspect area to be trimmed for any wire, cord, or string-like matter that could become entangled
in the rotating line or spool. Be particularly careful to avoid any wire that might be bent outwardly into
the path of the tool, such as barbs at the base of a chain link fence.
Care and Maintenance
This tool is intended for light applications. It is recommended to use it from 15 to 20 minutes maximum
per time. Any excessive use could cause damage in the tool.
Periodically unplug extension cord at trimmer and remove the accumulation of grass or cutting debris
from the inside of the bump cap shroud.
Your Black & Decker tool has been designed to operate over a long period of time with a minimum of
maintenance. Continuous satisfactory operation depends upon proper tool care and regular cleaning.
Warning! Before performing any maintenance, switch off and unplug the tool.
For the best performance, please keep the nylon line, spool and air slots in your trimmer shaft clean.
Plastic parts may be cleaned by using a mild soap and a cloth dampened with hot water. Do not
use solvents or cleaning fluids to clean your trimmer. Do not spray your trimmer with water.
Regularly use a blunt scraper to remove grass, sap or other dirt.
Regularly clean the ventilation slots, line and spool using a soft brush or dry cloth.
Store your trimmer in a dry place when not in use, out of the reach of children.
Do not operate your trimmer if any parts are defective; discard all defective parts and fit new parts before
Keep all nuts, bolts and screws tight to be sure your trimmer is in a safe working condition.
Self-lubricating bearings are used in this tool and so lubrication is not required.
Fault Finding
Before checking your trimmer for any faults, disconnect it from the mains.
If your trimmer vibrates, remove the spool and replace it in a new position. If this does not cure the problem
try removing the spool and rewinding the nylon line more tightly on the spool before replacing it.
If your trimmer will not start check that all power cables are properly connected, the cable is undamaged,
the house fuses are not blown or circuit breakers tripped.
If trimmer still fails to operate, take it to your local Black & Decker service center or authorized service
station for repair. Do not attempt to repair it yourself.
To ensure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (other than those listed
in this manual) should be performed by authorized service centers or other qualified organizations, always
using identical replacement parts. Unit contains no user serviceable parts inside.
Replacement Line
Replacement spools of cutting line (cat. No. RS300) are available from your Black & Decker dealer.
Caution: Use only recommended accessories with your string trimmer. The use of any other attachment
or accessory might be hazardous. Use only specially treated 1.5mm (0.065") diameter nylon line.
Service Information
Black & Decker offers a full network of company-owned and authorized service locations throughout Asia.
All Black & Decker Service Centers are staffed with trained personnel to provide customers with efficient and
reliable power tool service.
Whether you need technical advice, repair, or genuine factory replacement parts, contact the Black & Decker
location nearest to you.
Unwanted Products and the Environment
Should you find one day that your trimmer needs replacement, or is of no further use to you, think
of the protection of the environment. Black & Decker recommends you to contact your local council
for disposal information.
Black & Decker's policy is one of continuous improvement to our products and, as such, we reserve
the right to change product specifications without prior notice.
Standard equipment and accessories may vary by country.
Product specifications may differ by country.
Complete product range may not be available in all countries. Contact your local Black & Decker dealers
for range availability.



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Summary of Contents for Black & Decker GL300

  • Page 1 ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 12. Secondary handle 23cm String Trimmer 13. Cable GL300 Assembly Warning! Before assembly, make sure that the tool is switched off and unplugged. ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Fitting & Removing the Shaft (Fig. B) Technical Data • To fit the shaft of the tool, simply insert the upper shaft (5) into the lower shaft (6) until you hear a click.