Gtech ST04 Operator's manual

Safety and Instruction Manual for
ST04 Cordless Grass Trimmer

Gtech helpline: 0870 7944001 email: [e-mail]
www.greytechnology.co.uk
1

ST04 Cordless Grass Trimmer
Contents:
Page 3 Safety Information
Page 6 Part Location
Page 7 Battery Charging and Recharging
Page 9 Assembly
Page 10 Fitting and Replacing the Blade
Page 11 Telescopic Tube Adjustment
Page 12 Assist Handle Adjustment
Page 13 Cutting Head Adjustment
Page 14 Using Your Trimmer
Page 15 Cutting and Edging
Page 15 Care and Maintenance
Page 16 Troubleshooting
Page 17 Environment and Product Recycling
Page 17 Technical Specication
Page 18 Warranty Information
Page 19 Declaration of Conformity
2
Gtech helpline: 0870 7944001 email: [e-mail]
www.greytechnology.co.uk

IMPORTANT:
FOR YOUR OWN SAFETY AND
BYSTANDERS READ THE
INSTRUCTIONS BEFORE OPERATING
THE MACHINE.
PLEASE KEEP THE INSTRUCTIONS
SAFE FOR FUTURE REFERENCE.
WARNING: When using the machine the
safety instructions must be followed.
WARNING: THIS PRODUCT CAN CAUSE
SERIOUS INJURIES.
Read all instructions. Failure to follow
all instructions listed below may result in
electric shock, re and/or serious injury.
The term “power tool” in all of the warnings
listed below refers to your mains-operated
(corded) power tool or battery-operated
(cordless) power tool.
WARNING:
When using any electrical appliance,
basic safety precautions should always be
observed, including the following, to reduce
the risk of re, electrical shock, or injury.
Work area:
•Keep work area clean and well lit.
Cluttered and dark areas invite accidents.
•Do not operate power tools in explosive
atmospheres, such as in the presence of
ammable liquids, gases or dust. Power
tools create sparks which may ignite the
dust and fumes.
•Keep children and bystanders away while
operating a power tool. Distractions can
cause you to lose control.
•Not to be used as a toy. Not to be used
near children. Never allow children to use
the power tool. When not in use store the
power tool out of the reach of children.
•Always be sure of your footing on ladders
or slopes, do not over-reach or use on
excessively steep slopes.
Electrical safety:
•Power tool plugs must match the outlet.
Never modify the plug in any way.
•Do not use any adaptor plugs with
earthed (grounded) power tools.
Unmodied plugs and matching outlets
will reduce the risk of electric shock.
•Avoid body contact with earthed or
grounded surfaces such as pipes,
radiators, ranges and refrigerators. There
is an increased risk of electric shock if
your body is earthed or grounded.
•Do not expose power tools to rain or wet
conditions. Water entering a power tool
will increase the risk of electric shock.
•Do not abuse the cord. Never use the
cord for carrying, pulling or unplugging the
power tool. Keep cord away from heat,
oil, sharp edges or moving parts.
Damaged or entangled cords increase the
risk of electric shock.
•When operating a power tool outdoors,
use an extension cord suitable for outdoor
use. Use of a cord suitable for outdoor
use reduces the risk of electric shock.
•If the cord becomes damaged during use
disconnect the cord from the power supply
immediately- DO NOT touch the cable
before disconnecting.
•Before use check the power supply and
charger cables for signs of damage or
ageing.
•When charging or operating the power
tool it is recommended that the appliance
should be supplied via a residual current
device (RCD) with a tripping current of not
more than 30mA.
•Do not handle the charger or the power
tool with wet hands.
Personal Safety:
•Stay alert, watch what you are doing
and use common sense when operating
a power tool. Do not use any power tool
while you are tired or under the inuence
of drugs, alcohol or medication. A moment
Important Safety Information
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of inattention while operating power tools
may result in serious personal injury.
•Always be aware of your surroundings
and stay alert for possible hazards
that you may not be aware of due to
concentration on the power tool.
•Use safety equipment. Always wear eye
protection. Safety equipment such as non
skid shoes, safety glasses, sturdy gloves
and hearing protection are recommended
and will reduce the risk of personal injury.
•Do not operate when barefoot or wearing
open sandals.
•Always wear substantial footwear and
long trousers.
•Dress appropriately. Do not wear loose
clothing or jewellery. Keep your hair,
clothing and gloves away from moving
parts. Loose clothes, jewellery or long
hair can be caught in moving parts.
•Avoid accidental starting. Ensure the
switch is in the off position before plugging
in. Carrying power tools with your ngers
on the switches or plugging in power tools
that have the switch on invites accidents.
•Remove any adjusting key or wrench
before starting the power tool. A key or
wrench left in a rotating part of the power
tool may result in personal injury.
•Do not overreach. Keep proper footing
and balance at all times. This enables
better control of the power tool in
unexpected situations.
•Take care in slippery conditions, and on
slopes and uneven ground.
•Do not run with the power tool.
•When operating the power tool ensure
that both hands are correctly positioned
on both handles. Do not operate this
product if incomplete or with unauthorized
modications.
•Keep hands and feet away from the
cutting element at all times, and especially
when switching on.
•Warning, the cutting element will continue
to move after the motor is switched off.
•Ensure that the motor has fully stopped
before cleaning, clearing a blockage,
checking, or carrying out maintenance on
the power tool.
•Never operate the power tool with
damaged guards or without the guards in
place.
•The operator or user is responsible for
accidents or hazards occuring to other
people at their property.
•Never t metal cutting elements.
•This appliance is not intended for use by
persons (including children) with reduced
physical, sensory or mental capabilities,
or lack of experience and knowledge,
unless they have been given supervision
or instruction concerning use of the
appliance by a person responsible for their
safety.
•Children should be supervised to ensure
that they do not play with the appliance.
•Take care against any device tted for
trimming the lament line length. After
extending a new cutter line always return
the machine to its normal operating
position before switching on.
Power tool use and care:
•Do not force the power tool. Use the
correct power tool for your application.
The correct power tool will do the job
better and safer at the rate for which it
was designed.
•Do not use the power tool if the switch
does not turn it on and off. Any power tool
that cannot be controlled with the switch is
dangerous and must be repaired.
•Disconnect the plug from the power
source and/or the battery pack from
the power tool before making any
adjustments, changing accessories, or
storing power tools. Such preventive
safety measure reduce the risk of starting
the power tool accidentally,
•Store idle power tools out of the reach
of children and do not allow persons
unfamiliar with the power tool or these
instructions to operate the power tool.
Power tools are dangerous in the hands of
untrained users.
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•Maintain power tools. Check for
misalignment or binding of moving parts,
breakage of parts and any other condition
that may affect the power tools operation.
If damaged, have the power tool repaired
before use. Many accidents are caused
by poorly maintained power tools.
•Check that the cutting blades are
cleanand without damage. If the blade
becomes worn a replacement should be
tted before use.
•Use the power tool, accessories etc. In
accordance with these instructions and
inthe manner intended for the particular
type of power tool, taking into account
the working conditions and the work to
be performed. Use of the power tool for
operations different from those intended
could result in a hazardous situation.
•Only use the machine in daylight or good
articial light.
•Before using the machine and after any
impact, check for signs of wear or damage
and repair as necessary.
•Always ensure that ventilation openings
are kept clear of debris.
•Keep the product and all accessories
away from hot surfaces.
•Store the tool in a secure, dry place out of
reach of children and animals.
•Never modify the trimmer in any way
as this may increase the risk of personal
injury.
Battery use and care:
•Do not attempt to use the charger with
any other product nor attempt to charge
this product with another charger.
•Using a charger from a different product
may cause a risk of re.
•Leaks from battery cells can occur under
extreme conditions. If the liquid gets on
the skin wash immediately with soap and
water. If the liquid gets into the eyes, ush
them immediately with clean water for a
minimum of 10 minutes and seek medical
attention.
•This product contains Ni-Cd batteries. Do
not incinerate batteries or expose to high
temperatures, as they may explode.
• Use power tools only with specically
designated battery packs. Use of any
other battery packs may create a risk of
injury and re.
•When the battery pack is not in use, keep
away from other metal objects such as:
paper clips, coins, keys, nails, screws, or
other small metal objects that can make a
connection from one terminal to another.
•Shorting the battery terminals may cause
burns or re.
•In an emergency situation contact
professional help immediately!
•Under abusive conditions liquid may be
ejected from the battery; avoid contact.
If contact accidentally occurs, ush with
water. If liquid contacts eyes additionally
seek medical help. Liquid ejected from a
battery may cause irritation or burns.
Service:
•Have your power tool serviced by a
qualied repair person using only identical
replacement parts. This will ensure that
the safety of the power tool is maintained.
•Do not attempt to repair any damaged
parts on this product unless you are
qualied to do so.
•Never use replacement parts or
accessories not provided or recommended
by the manufacturer.
Intended use:
This product is intended for DOMESTIC
USE ONLY
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1. Main unit
2. Power switch
3. Safety button
4. Assist handle
5. Telescopic tube latch
6. Head angle lock
7. Trimmer guard xing screw
8. Trimmer guard
9. Cutting blade (x20)
10. Battery Connector
11. Battery Pack
12. Charger
13. Charger plug
1
4
12
9
7
6
5
3
2
8
13
Part Location
!
Read instruction
manual before
use
Do not use in
rain or leave
outdoors whilst
raining.
General hazard
safety alert.
Wear eye protection
when using this
product.
Measured sound
power level: 86dB(A)
Guaranteed sound
power level: 87dB(A)
Note: Measured noise values determined
according to 2000/14 EC (1.60m height,
1.0m distance away).
Beware of thrown
or ying objects to
bystanders.
dB
LWA
87
10
11
6
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Warning Label Descriptions

The battery has to be removed from the product to charge it
To disconnect the battery pack, grip the battery connector and slide it off the
battery pack.
Battery Charging & Recharging
There is NO indicator to show when the battery is charged. Charge for 15 hours
to ensure a full charged battery.
Note: the battery will not be damaged if charged for longer than 15 hours but
should not be charged for longer than 24 hours.
Connect the charging jack into the socket on the battery pack.
Plug the charger into a suitable electrical socket and switch on.
From at the battery requires 15 hours to fully charge.
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Once the battery is fully charged switch off the charger at the mains socket,
remove the charging jack form the battery pack, and unplug the charger from the
mains socket.
WARNING : DO NOT PULL THE CHARGER BY THE CORD.
Push the battery connector onto the battery pack until it securely locates into
place.
WARNING : ONLY USE THE CHARGER PROVIDED WITH THE PRODUCT.
USING ANY OTHER CHARGER MAY DAMAGE THE PRODUCT AND THE
BATTERY.
Only use replacement batteries as supplied by the manufacturer.
Spare and replacement batteries can be purchased from Grey Technology
Tel [phone] or online at www.greytechnology.co.uk
8
Gtech helpline: 0870 7944001 email: [e-mail]
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Assembly
Locate the guard onto the head of the trimmer ensuring that the two location
hooks engage into the slots on the trimmer head.
Push the guard forward until the hooks are fully engaged in the slots.
Fit the guard xing screw to secure the guard to the trimmer head.
x screw here
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Fitting and replacing the blade
The trimmer has a removable plastic blade that can be replaced with a new blade
quickly and easily.
WARNING : do not attempt to remove the blade while the unit is running.
Wait until the blade has stopped before attempting to remove the blade.
Never t metal blades.
Only t blades recommended by the manufacturer.
To t the blade :
Place the blade over blade retaining pin, then pull the blade outwards to lock into
position. blade retaining pin
To remove the blade :
Push the blade toward the centre of the trimmer and lift off the blade retaining pin.
Warning : only t blades recommended by the manufacturer.
Replacement blades can be purchased from Grey Technology Ltd
Tel [phone] or online at www.greytechnology.co.uk
10
Gtech helpline: 0870 7944001 email: [e-mail]
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Telescopic tube adjustment
The telescopic tube length on the trimmer can be varied to suit different user
heights.
WARNING : do not attempt to adjust the telescopic tube whilst the blade is
rotating.
Adjusting the handle length:
Grip the trimmer rmly and release the latch on the lower handle.
Extend the telescopic tube to the desired length.
Press the latch down rmly to lock the telescopic tube in position.
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Assist handle adjustment
The angle and reach of the assist handle can be adjusted to your preference.
WARNING : do not attempt to adjust the assist handle whilst the blade is
rotating.
Adjusting the assist handle:
Loosen the knob on the side of the handle.
Slide the handle along the tube and adjust the angle of the handle to a position
which is most comfortable.
Tighten the knob to x the assist handle in the new position.
Loosen Knob
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Cutting head adjustment
The cutting head can be adjusted to different angles for ease of cutting in different
conditions.
WARNING : do not attempt to adjust the cutting head while the blades are
rotating.
Grip the head of the trimmer, press and hold the button marked ‘PUSH’.
Rotate the head to the desired angle.
Release the button to lock the head in position.
Ensure the button and head are securely locked in position before starting
the trimmer.
The cutting head can be rotated to a vertical position for edge trimming around
lawns.
WARNING : do not attempt to rotate the cutting head while the blades are
rotating.
Grip the head of the trimmer and twist half a turn around the handle.
Caution: Ensure the power button is not engaged during adjustment.
Ensure the button and head are securely locked in position before starting
the trimmer.
PUSH
Trimming Rotate Edging
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Using your trimmer
Starting and Stopping:
The handle is designed with a safety button to prevent accidental starting.
To start the trimmer:
Press and hold the safety button located on either side of the handle, then press
the trigger.
Continue holding the trigger and release the safety button.
The trimmer will be on for as long as the trigger is pressed.
Safety button Trigger
To stop the trimmer:
Release the trigger to stop the trimmer.
WARNING : the blade continues to rotate for a few seconds after the
trimmer is switched off.
Do not touch the rotating blade, and keep hands and feet clear until the
blade stops rotating.
WARNING : always wear eye protection when using the trimmer.
Fully charge the battery as described in the section Battery Charging and
Recharging
Push the battery connector onto the battery pack until it securely locates into
place.
The battery pack can be carried in a pocket, or the clip tted onto a waistband or
belt.
14
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Care and maintenance
To ensure long and reliable service, carry out the following maintenance
regularly:
Check for obvious defects such as loose, dislodged, worn or damaged parts.
Check that covers and guards are correctly tted and undamaged.
Before use, visually check the condition of the cutting blade. If worn replace with a
fresh blade.
Clean inside the guard after use. Remove any dirt or debris using a suitable
wooden or plastic tool. Do not use water, solvents, or polishes to clean the
trimmer. Wipe clean with a dry cloth. Store in a dry place. Do not expose to
moisture.
Cutting and edging
Caution: before use remove any stones, loose debris and other objects from
the cutting area.
Always take care when other people are around you. The trimmer may throw
out stones and debris at high speed.
WARNING : always wear eye protection when using the trimmer.
Hold the trimmer away from the body using both hands. Stand in a secure and
stable position. When cutting move slowly and steadily along the line of cut,
moving the trimmer from side to side.
Take care not to overload the trimmer. Attempting to force the trimmer to cut may
damage the motor. To prevent overloading cut long or difcult foliage in stages
with several light cuts.
NOTE: the trimmer is tted with a self-resetting protective cut-out. This will
stop the trimmer if the motor becomes overloaded. If this occurs, wait a few
seconds for the cut-out to reset and then use lighter cuts.
Take care not to grind the rotating parts against the ground as this will wear parts
and cause damage to the trimmer.
Take care when trimming around objects such as stone or concrete as these can
damage the trimmer blade and parts that attach the blade.
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Troubleshooting
PROBLEM POSSIBLE REASON POSSIBLE SOLUTION
Trimmer fails to operate
1. Battery at
2. Cord not connected to battery
pack
3. Faulty switch
1. Recharge battery
2. Check connection of cord
3. Switch in handle will ‘click’ if
operating properly
Cutting blade will not cut
1. Blade worn
2. Blade damaged
3. Trimmer not fast enough
1. Replace blade
2. Replace blade
3. Charge battery
Cutting time low
1. Battery not fully charged
2. Blade damaged
3. Guard has build up of debris
4. Overloaded motor
5. Battery damaged or not holding
charge
1. Recharge battery
2. Replace blade
3. Clean guard
4. Use lighter cutting action
5. Replace battery
Trimmer vibrates when
running
1. Blade worn / damaged or missing
2. Balance weight damaged or
missing
1. Fit new blade
2. Call helpline
Trimmer stops when
cutting
1. Overloaded motor
2. Battery at
1.Wait for cut-out to reset, use
lighter cutting action
2. Charge battery
Battery not charging
1.Charger not well connected to
battery pack.
2. Charger not fully pushed into
mains socket.
3. Mains socket not switched on
4. Defective mains socket, cable, or
charger
5. Charger faulty
1. Check charger plug is well
connected to battery pack
2. Push the charger fully into
mains socket
3. Switch on mains socket
4. Consult a qualied electrician
to check the socket. Contact
customer service centre or
dealer.
5. Charger should feel warm
when charging correctly.
If the product needs to be repaired or replaced only use parts which
are approved by the manufacturer.
Should you experience any problems please do not return the
product to the shop. For any help and assistance please contact the
customer support helpline:
tel: [phone]
email: [e-mail]
16
Gtech helpline: 0870 7944001 email: [e-mail]
www.greytechnology.co.uk

The symbol indicates that this product is covered by legislation for waste
electrical and electronic products (EN2002/96/EC)
When the product has reached the end of its life please do not dispose of it with
general household waste. Consider the environment and take it to a recognised
recycling facility. Call your local council, civic amenity site, or recycling centre for
information on the disposal and recycling of electrical products.
Alternatively visit www.recycle-more.co.uk for advice
on recycling and to nd your nearest recycling facilities.
Battery Disposal
The product contains a NiCd battery which should not be disposed of with
general household waste. At the end of the product’s or battery’s life the battery
pack should be disposed of properly at a recycling facility.
For safety we do not recommend to dis-assemble and remove the battery
from the battery pack, and this should only be carried out by a professional or
technically competent person. It is recommended to dispose of the complete
battery pack at a recognised recycling facility.
Environmental and Product Recycling
ST04 Technical specication
Cutting Width 23cm
No load speed 8500/min
Battery type 12V DC, 1.5Ah Ni-Cd
Charging period for fully discharged battery 15 hours
Charger output 15.0V DC, 160mA
Charger input 230V AC 50Hz 7.5W
Charger type AD-1516-BS8P
Measured sound power level, LpA,d 86 dB(A)
Guaranteed sound power level, LwA,d 87 dB(A)
Weight 1.2Kg
Vibration (according to EN50144-2-15) below 2.5m/s²
WARNING : ONLY USE THE CHARGER PROVIDED WITH THE PRODUCT.
USING ANY OTHER CHARGER MAY DAMAGE THE PRODUCT AND THE
BATTERY.
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18
Grey Technology has provided the ST04 Cordless Grass Trimmer with a 12 month
guarantee.
In Guarantee: Please retain your receipt as proof of purchase. In the rare and
unfortunate event of your Gtech product being faulty, please accept our apologies
and we will aim to remedy the problem as fast as possible once brought to our
attention. However please be aware that due to company policy Grey Technology
can only repair or replace all or part of the product if proof of purchase is provided
and the claim is made within 12 months of the purchase date.
If your product is within the 12 months warranty period you should either return
this product with its receipt to the retailers where the product was purchased or if
a simple part or advice is required ring the Gtech customer services line where we
will be more than happy to assist.
Please note: Gtech can not refund any monies if the product was brought from a
third party.
We would like to remind our customers that the Gtech guarantee does not cover
any unauthorised repairs and will be annulled:
1. if the product has been damaged due to incorrect use or maintenance.
2. if any part is modied or replaced or if it is used in any way that is not
recommended by Gtech.
3. if it is used with any parts not produced or not recommended by Gtech.
4. if it is used for purposes other than those specied by Gtech.
Please note: the battery is a consumable item and is not covered by the 12 month
guarantee.
If after reading the manual and following the instructions you are sure that the
product is defective please call the Gtech customer service helpline on 0870
7944001. A customer service advisor will be on hand to deal with any problems
you have with our product. To assist them please be ready with the product, a
detailed description of the problem, and your proof of purchase.
Out of Guarantee: If your Gtech product is over 12 month old and you need any
parts or advice then please contact our customer services department. Parts will
be sent out usually within 3 weeks of request.
WARNING : only use the charger supplied with the product. Using another
charger may damage the product and the battery and will invalidate your
guarantee.
Warranty Information
Gtech helpline: 0870 7944001 email: [e-mail]
www.greytechnology.co.uk

Grey Technology Ltd
Units 1&2 Cupola Court
Spetchley
Worcester
WR5 1RL
tel: [phone]
email: [e-mail]
www.greytechnology.co.uk
© Copyright Grey Technology Ltd 2008
EC Declaration of Conformity
We, manufacturer/importer
Grey Technology Ltd
Units 1&2 Cupola Court
Spetchley
Worcester
WR5 1RL
declare that the product
ST04 Cordless Grass Trimmer
complies with the essential health and safety requirements of the following directives:
2004/108/EC - EMC Directive.
98/37 EC - Machinery Directive
2006/95/EC - Low Voltage Directive
2000/14/EC - Noise emission in the environment by equipment for use outdoors.
- Measured Sound Power Level = 86 dB(A)
- Declared Guaranteed Sound Power Level = 87 dB(A)
Technical documentation holder: Grey Technology Ltd
Standards and technical specications referred to:
EN60335-1
EN60335-2-91
EN ISO 10518
EN786
EN55014-1
EN55014-2
EN61000-3-2
EN61000-3-3
19 11/08