ST1823 | Black&Decker ST1823 STRING TRIMMER Type 2 instruction manual

2 3
11 14
5 -10
(Original instructions)
Intended use
Your BLACK+DECKER ST1823 trimmer has been
designed for trimming and finishing lawn edges and to cut
grass in confined spaces. This appliance 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, personal injury and material
Warning! When using the machine the
safety rules must be followed. For your
own safety and bystanders please read
these instructions before operating the
machine. Please keep the instructions
safe for later use.
u Read all of this manual carefully before
operating the appliance.
u The intended use is described in this
manual. The use of any accessory
or attachment or the performance
of any operation with this appliance
other than those recommended in this
instruction manual may present a risk
of personal injury.
u Retain this manual for future
Using your appliance
Always take care when using the
u Always use safety glasses or goggles.
u Never allow children, persons with
reduced physical, sensory or mental
capabilities or lack of experience and
knowledge or people unfamiliar with
these instructions to use the machine,
local regulations may restrict the age
of the operator.
Never operate the machine while
people, especially children, or pets are
u Do not allow children or animals to
come near the work area or to touch
the appliance.
u Close supervision is necessary when
the appliance is used near children.
u This appliance is not intended for use
by young or infirm persons without
u This appliance is not to be used as a
u Only use the appliance in daylight or
good artificial light.
u Use in a dry location only. Do not allow
the appliance to become wet.
u Avoid using the appliance in bad
weather conditions, especially when
there is a risk of lightning.
uDo not immerse the appliance in water.
uDo not open the body casing. There
are not user-serviceable parts inside.
u Do not operate the appliance in
explosive atmospheres, such as in the
presence of flammable liquids, gases
or dust.
uThe appliance is only to be used with
the power supply unit provided with the
Residual risks.
Additional residual risks may arise when
using the tool which may not be included
in the enclosed safety warnings.
These risks can arise from misuse,
prolonged use etc.
Even with the application of the
relevant safety regulations and the
implementation of safety devices, certain
residual risks can not be avoided.
(Original instructions)
These include:
u Injuries caused by touching any
rotating/moving parts.
u Injuries caused when changing any
parts, blades or accessories.
u Injuries caused by prolonged use
of a tool. When using any tool for
prolonged periods ensure you take
regular breaks.
u Impairment of hearing.
u Health hazards caused by breathing
dust developed when using your
tool (example:- working with wood,
especially oak, beech and MDF.)
After use
When not in use, the appliance should
be stored in a dry, well ventilated place
out of reach of children.
u Children should not have access to
stored appliances.
u When the appliance is stored or
transported in a vehicle it should be
placed in the boot or restrained to
prevent movement following sudden
changes in speed or direction.
Inspection and repairs
Before use, check the appliance
for damaged or defective parts.
Check for breakage of parts and any
other conditions that may affect its
u Do not use the appliance if any part is
damaged or defective.
u Have any damaged or defective parts
repaired or replaced by an authorised
repair agent.
u Never attempt to remove or replace
any parts other than those specified in
this manual.
The declared vibration emission values
stated in the technical data and the
declaration of conformity have been
measured in accordance with a standard
test method provided by EN50636 and
may be used for comparing one tool with
another. The declared vibration emission
value may also be used in a preliminary
assessment of exposure.
Warning! The vibration emission value
during actual use of the power tool can
differ from the declared value depending
on the ways in which the tool is used.
The vibration level may increase above
the level stated.
When assessing vibration exposure to
determine safety measures required by
2002/44/EC to protect persons regularly
using power tools in employment, an
estimation of vibration exposure should
consider, the actual conditions of use and
the way the tool is used, including taking
account of all parts of the operating
cycle such as the times when the tool is
switched off and when it is running idle in
addition to the trigger time.
Additional safety instructions for
grass trimmers
Warning! Cutting elements continue to
rotate after the motor is switched off.
uBe familiar with the controls and the
proper use of the appliance.
uAlways remove the battery from the
appliance whenever the appliance
is unattended, before clearing a
blockage, before cleaning and
maintenance, after striking a foreign
(Original instructions)
Or whenever the appliance starts
vibrating abnormally.
u Wear stout shoes or boots to protect
your feet.
u Wear long trousers to protect your
u Before using the appliance, check that
your cutting path is free from sticks,
stones, wire and any other obstacles.
u Only use the appliance in the upright
position, with the cutting line near the
ground. Never switch the appliance on
in any other position.
u Move slowly when using the appliance.
Be aware that freshly cut grass is
damp and slippery.
u Do not work on steep slopes. Work
across the face of slopes, not up and
u Never cross gravel paths or roads
while the appliance is running.
u Never touch the cutting line while the
appliance is running.
u Do not put the appliance down until the
cutting line has come to a complete
u Use only the appropriate type of
cutting line. Never use metal cutting
line or fishing line.
u Be careful not to touch the line
trimming blade.
u Keep hands and feet away from the
cutting line at all times, especially
when switching on the motor.
u Before using the appliance and after
any impact, check for signs of wear or
damage and repair as necessary.
u Never operate the appliance with
damaged guards or without guards in
Take care against injury from any
device fitted for trimming the filament
line length. After extending new cutter
line always return the machine to
its normal operating position before
switching on.
uAlways ensure that the ventilation slots
are kept clear of debris.
Additional safety instructions for
batteries and chargers
Never attempt to open for any reason.
Do not expose the battery to water.
u Do not store in locations where the
temperature may exceed 40 °C.
u Charge only at ambient temperatures
between 10 °C and 40 °C.
uCharge only using the charger
provided with the tool.
uWhen disposing of batteries, follow
the instructions given in the section
"Protecting the environment".
Use your BLACK+DECKER charger
only to charge the battery in the tool
with which it was supplied. Other
batteries could burst, causing personal
injury and damage.
u Never attempt to charge nonrechargeable batteries.
uHave defective cords replaced
uDo not expose the charger to water.
uDo not open the charger.
uDo not probe the charger.
(Original instructions)
The charger is intended for
indoor use only.
Read the instruction manual
before use.
Electrical safety
Your charger is double insulated;
therefore no earth wire is
required. Always check that the
mains voltage corresponds to the
voltage on the rating plate. Never
attempt to replace the charger
unit with a regular mains plug.
u If the supply cord is damaged, it must
be replaced by the manufacturer or an
authorised BLACK+DECKER Service
Centre in order to avoid a hazard.
Labels on appliance
The following pictograms are shown on
the tool along with the date code:
Read the manual prior to
Wear safety glasses or goggles
when operating this appliance.
Wear suitable ear protectors
when operating this appliance.
Always remove the battery from
the appliance before performing
any cleaning or maintenance.
Beware of flying objects. Keep
bystanders away from the
cutting area.
Do not expose the appliance to
rain or high humidity.
Directive 2000/14/EC
guaranteed sound power.
This appliance includes some or all of the following features.
1. Trigger
2. Lock off button
3. Handle
4. Auxiliary handle
5. Height adjust collar
6. Trimmer head
7. Edge guide
8. Guard
9. Spool housing
10. Battery
Charging the battery (Fig. A)
The battery needs to be charged before first use and
whenever it fails to produce sufficient power on jobs that were
easily done before.
The battery may become warm while charging; this is normal
and does not indicate a problem.
Warning! Do not charge the battery at ambient temperatures
below 10 °C or above 40 °C. Recommended charging
temperature: approx. 24 °C.
Note: The charger will not charge a battery if the cell
temperature is below approximately 10 °C or above 40 °C.
The battery should be left in the charger and the charger
will begin to charge automatically when the cell temperature
warms up or cools down.
u Plug the charger into an appropriate outlet before inserting
the battery pack.
u Insert the battery pack into the charger.
The green LED will flash indicating that the battery is being
The completion of charge is indicated by the green LED
remaining on continuously. The pack is fully charged and
may be used at this time or left in the charger
Warning! Recharge discharged batteries as soon as possible
after use or battery life may be greatly diminished.
(Original instructions)
Charger diagnostics
This charger is designed to detect certain problems that can
arise with the battery packs or the power source. Problems
are indicated by one LED flashing in different patterns.
Bad Battery
The charger can detect a weak or damaged battery. The
red LED flashes in the pattern indicated on the label. If you
see this bad battery blink pattern, do not continue to charge
the battery. Return it to a service centre or a collection site
for recycling
Hot/Cold Pack Delay
When the charger detects a battery that is excessively
hot or excessively cold, it automatically starts a Hot/Cold
Pack delay, suspending charging until the battery has
normalised. After this happens, the charger automatically
switches to the Pack Charging mode. This feature ensures
maximum battery life. The red LED flashes in the pattern
indicated on the label when the Hot/Cold pack delay is
Leaving the battery in the charger
The charger and battery pack can be left connected with the
LED glowing indefinitely. The charger will keep the battery
pack fresh and fully charged.
Important charging notes
Longest life and best performance can be obtained if
the battery pack is charged when the air temperature is
between 65°F and 75°F (18°- 24°C). DO NOT charge the
battery pack in an air temperature below +40°F (+4.5°C),
or above +105°F (+40.5°C). This is important and will
prevent serious damage to the battery pack .
The charger and battery pack may become warm to touch
while charging. This is a normal condition, and does not
indicate a problem. To facilitate the cooling of the battery
pack after use, avoid placing the charger or battery pack
in a warm environment such as in a metal shed, or an
uninsulated trailer
If the battery pack does not charge properly:
u Check current at receptacle by plugging in a lamp or
other appliance
u Check to see if receptacle is connected to a light switch
which turns power off when you turn out the lights.
Move charger and battery pack to a location where the
surrounding air temperature is approximately 65°F
- 75°F (18°- 24°C).
u If charging problems persist, take the appliance, battery
pack and charger to your local service center.
u The battery pack should be recharged when it fails to
produce sufficient power on jobs which were easily done
previously. DO NOT CONTINUE to use under these
conditions. Follow the charging procedure. You may also
charge a partially used pack whenever you desire with no
adverse affect on the battery pack.
u Foreign materials of a conductive nature such as, but
not limited to, steel wool, aluminium foil, or any buildup
of metallic particles should be kept away from charger
cavities. Always unplug the charger from the power supply
when there is no battery pack in the cavity. Unplug charger
before attempting to clean.
u Do not freeze or immerse charger in water or any other
Warning! Shock hazard. Do not allow any liquid to get inside
charger. Never attempt to open the battery pack for any
If the plastic housing of the battery pack breaks or cracks,
return to a service center for recycling.
Installing and removing the battery pack from the
Warning! Make certain the lock-off button is not engaged to
prevent switch actuation before removing or installing battery.
To install battery pack
Insert battery (10) into appliance until an audible click is
heard (Figure B). Ensure battery pack is fully seated and fully
latched into position.
To remove battery pack
Depress the battery release button (11) as shown in Figure C
and pull battery pack out of appliance.
Warning! Before assembly, make sure that the tool is
switched off and the battery has been removed.
Assembly tools required (not supplied):
Phillips Screwdriver.
Fitting the guard (Fig. D, E)
Warning! Remove the battery from the appliance before
attempting to attach the guard, edge guide or handle. Never
operate appliance without guard firmly in place. The guard
must always be on the appliance to protect the user.
u Remove the screw from the guard.
u Turn the trimmer upside down so that you are looking
down at the spool cap (16).
(Original instructions)
Turn the guard (8) upside down and slide it fully onto the
motor housing (12). Make sure the tabs (13) on the guard
slip into the holes (14) of the motor housing as shown in
Figure D.
u Continue to slide the guard on until you hear it “snap” into
u Using a phillips screwdriver, insert the guard screw and
tighten securely as shown in Figure E to complete the
guard assembly.
u Once the guard is installed, remove the covering from the
line cut-off blade, located on the edge of the guard.
Warning! Never use the tool unless the guard is properly
Height adjustment (Fig. F, G–G3)
Warning! Adjust the length of the trimmer to obtain proper
working positions shown in Figures G - G3.
u The overall height of the trimmer can be adjusted by
loosening the height-adjust collar (5) and rotating it in the
direction of the arrow shown in Figure F.
u Move the upper housing straight up or down. When the
desired height is achieved, tighten the collar by rotating it
opposite of the direction shown in Figure F.
Releasing the cutting line
In transit, the cutting line is taped to the spool housing.
u Remove the tape holding the cutting line to the spool
Switching on and off
To switch the appliance on, push the lock-off button (2),
and squeeze the trigger (1).
To switch the appliance off, release the trigger.
Operating the trimmer (Fig. F, G–G3)
With the unit on, angle unit and slowly swing the trimmer
side to side as shown in Figure G.
Maintain a cutting angle of 5° to 10° as shown in Figure
G1. Do not exceed 10° (Figure G2). Cut with the tip of the
line. To keep distance from hard surfaces use edge guide
Maintain a minimum distance of 600mm between the
guard and your feet as shown in Figure G3. To acheive
this distance adjust the overall height of the trimmer as
shown in Figure F.
Convert to edging mode (Fig. H, I)
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 trimmer and guard are designed to reduce the
danger. However, MAKE SURE that other persons and pets
are at least 30 m away. Optimum cutting results are achieved
on edges deeper than 50 mm.
u Remove the battery from the trimmer.
u To operate as a maintenance edger, turn the collar (5) as
shown in part 1 of Figure H.
u Hold the metal shaft and rotate the lower housing 180° as
shown in part 2.
u Turn the collar until tight.
u Lift the edge guide (7) into the edging position as shown in
Figure I.
u Position the trimmer above the surface as shown in
Figure J.
u Return to the trimming position by loosening the lock collar
and rotating the lower housing back 180°. Turn the collar
until tight.
Helpful cutting tips
Warning! Always use proper eye protection.
Warning! Before you begin trimming, only use the appropriate
type of cutting line.
Note: 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 appliance,
such as barbs at the base of a chain link fence.
Use the tip of the string to do the cutting; do not force
string head into uncut grass. Use edge guide along
such things as fences, houses and flower beds for best
Wire and picket fences cause extra string wear, even
breakage. Stone and brick walls, curbs, and wood may
wear string rapidly.
Do not allow spool cap to drag on ground or other
In long growth cut from the top down and do not exceed
300 mm high.
Keep trimmer tilted toward the area being cut; this is the
best cutting area.
u The trimmer cuts when passing the
unit from the right to left. This will avoid throwing debris at
the operator.
Avoid trees and shrubs. Tree bark, wood moldings, siding,
and fence posts can easily be damaged by the string.
Cutting line / line feeding
Your trimmer uses 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 spool 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.
(Original instructions)
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.
Clearing jams and tangled line (Fig. K, L, M)
Warning! Remove the battery from the trimmer before
making any assembly, adjustments or changing accessories.
Such preventive safety measures reduce the risk of starting
the appliance accidentally. From time to time, especially
when cutting thick or stalky weeds, the line feeding hub may
become clogged with sap or other material and the line will
become jammed as a result. To clear the jam, follow the steps
listed below.
u Remove the battery from the trimmer.
u Press the release tabs (15) on the line spool cap (16),
as shown in Figure K and remove the cap by pulling it
straight off.
u Pull the nylon line spool out and clear any broken line or
cutting debris from the spool area.
u Place spool and line into spool cap with line “parked” in
slots provided as shown in Figure L1.
u Insert the line end through the appropriate hole in the
spool housing. Pull slack line through until it pulls out of
the holding slots as shown in Figure L2.
u Press the spool down gently and rotate it until you feel it
drop into place and then push to snap into place. (When
in place, the spool will turn a few degrees left and right
u Take care to keep the line from becoming trapped under
the spool.
u Align the spool cap tabs with the slots on the spool
u Snap the spool cap back on as shown in Figure M by
depressing lugs and pressing into spool housing.
Note: Make sure that cover is fully positioned, listen for two
audible clicks to ensure both lugs are correctly located. Power
the appliance on. In a few seconds or less you’ll hear the
nylon line being cut automatically to the proper length.
Warning! To avoid appliance damage, if the cutting line
protrudes beyond the trimming blade, cut it off so that it just
reaches the blade.
Note: Other replacement parts (guards, spool caps, etc.) are
available through BLACK+DECKER service centers. To find
your local service location visit
Warning! The use of any accessory not recommended
by BLACK+DECKER for use with this appliance could be
Replacing the spool (Fig. K, L, M, N)
Remove battery from appliance.
Depress the tabs (15) and remove the spool cap (16) from
the spool housing (17) (Figure K).
Grasp empty spool with one hand and spool housing with
other hand and pull spool out.
If lever (18) (Figure N) in base of housing becomes
dislodged, replace in correct position before inserting new
spool into housing.
Remove any dirt and grass from the spool and housing.
Unfasten the end of the cutting line and guide the line into
the eyelet (L2) Figure L.
Take the new spool and push it onto the boss (19)
(Figure N) in the housing. Rotate the spool slightly until it
is seated. The line should protrude approximately 136 mm
from the housing.
Align the tabs on the spool cap with the slots in the
housing (Figure M).
Push the cap onto the housing until it snaps securely into
Rewinding spool from bulk line (Fig. O, P, Q)
Bulk line is also available for purchase from your local retailer.
Note: Hand wound spools from bulk line are likely to become
tangled more frequently than BLACK+DECKER factory
wound spools. For best results, factory wound spools are
recommended. To install bulk line, follow the steps below:
u Remove battery from appliance.
u Remove the empty spool from the appliance as described
in “Replacing the spool.”
u Remove any remaining cutting line from the spool.
u Make a fold at the end of the cutting line at about 19 mm
(20). Feed the cutting line into one of the line anchoring
slots (21) as shown in Figure O.
u Insert the 19 mm end of the bulk line into the hole (22) in
the spool adjacent to the slot as shown in Figure P. Make
sure the line is pulled tight against the spool as shown in
Figure P.
u 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 Q).
u When the wound cutting line reaches the recesses (23),
cut the line (Figure P).
u Fit the spool onto the appliance as described in “Replacing
the spool”.
Your BLACK+DECKER corded/cordless appliance/tool has
been designed to operate over a long period of time with a
minimum of maintenance. Continuous satisfactory operation
depends upon proper tool/appliance care and regular
Your charger does not require any maintenance apart from
regular cleaning.
(Original instructions)
Warning! Before performing any maintenance on corded/
cordless power tools:
u Switch off and unplug the appliance/tool.
u Or switch off and remove the battery from the appliance/
tool if the appliance/tool has a separate battery pack.
u Or run the battery down completely if it is integral and then
switch off.
u Unplug the charger before cleaning it. Your charger does
not require any maintenance apart from regular cleaning.
u Regularly clean the ventilation slots in your tool/appliance
and charger using a soft brush or dry cloth.
u Regularly clean the motor housing using a damp cloth. Do
not use any abrasive or solvent-based cleaner.
u Regularly clean the cutting line and spool using a soft
brush or dry cloth.
u Regularly use a blunt scraper to remove grass and dirt
from the underneath of the guard.
Appliance runs slowly.
Remove battery from trimmer.
Check that the spool housing can rotate
freely. Carefully clean it if necessary.
Check that the cutting line does not
protrude more than approximately
122 mm from the spool. If it does, cut
it off so that it just reaches the line
trimming blade
Automatic line feed does not
feed line.
More line is fed when the line shortens
to approximately 76 mm. To determine if
the line is not feeding, let line wear past
this point.
Keep the tabs depressed and remove the
spoolcap with the spool from the spool
housing in the trimmer head.
Ensure that the line is not crisscrossed
on the spool as detailed in (Fig. Q). If
it is unwind the cutting line and rewind
it neatly.
Inspect tracks at the bottom of spool for
damage. If damaged, replace spool.
Pull the cutting line until it protrudes
approximately 122 mm from the spool. If
insufficient cutting line is left on the spool,
install a new spool of cutting line.
Align the tabs on the spool cap with the
cut outs in the housing.
Push the spool cap onto the housing until
it snaps securely into place.
If the cutting line protrudes beyond the
trimming blade, cut it off so that it just
reaches the blade. If the automatic line
feed still does not work or the spool is
jammed, try the following suggestions:
Carefully clean the spool and housing.
Make sure you are using correct line
size and diameter (2.00 mm) - smaller
and larger line sizes will affect the
functionality of the auto feed system.
Remove the spool and check if the lever
in the spool housing can move freely.
Remove the spool and unwind the cutting
line, then wind it on neatly again. Replace
the spool into the housing.
Ensure you are cutting with the tip of
the line 177 mm from the spool. Use the
edge guide if needed to ensure proper
space is maintained.
Ensure you are not exceeding a 10º
angle as shown in (Fig. G1).
Line unravels when cap or
spool is removed
Make sure to park the lines in holding
slots (Fig. L1) before removing.
Protecting the environment
eparate collection. Products and batteries
marked with this symbol must not be disposed of
with normal household waste.
Products and batteries contain materials that can be
recovered or recycled reducing the demand for raw materials.
Please recycle electrical products and batteries according
to local provisions. Further information is available at
(Original instructions)
Technical data
Input Voltage
No-Load Speed
Input Voltage
Output Voltage
Hand/arm weighted vibration value according to
= < 3.6 m/s2, uncertainty (K) = 1.5 m/s2.
LPA (sound pressure) 76 dB(A)
uncertainty (K) = 2.6 dB(A)
Australia & New Zealand
Stanley Black & Decker
Tel.1800 338 002 (Aust) or Tel. 0800 339 258 (NZ)
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