Hyundai HY4TR26 User manual

PETROL GRASS TRIMMER
HY4TR26
User Manual

2
CONTENTS
PAGE NO.S
1
SAFETY
3 - 8
2
PART LOCATIONS
9
3
ASSEMBLY
10 - 12
4
PRE OPERATION CHECKS
12 - 13
5
STARTING PROCEDURE
13 - 14
6
STOPPING PROCEDURE
14
7
USING THE MACHINE
14 - 15
8
MAINTENANCE
16 - 20
9
TROUBLESHOOTING
21
10
SPECIFICATION
22
11
RECYCLING & PRODUCT DISPOSAL
23
12
DECLARATION OF CONFORMITY
24
13
CONTACT DETAILS
25
14
WARRANTY
25
15
MANUAL UPDATES
25
INDEX

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1. SAFETY
1.1 General Safety Notes.
1.2 The operator of the machine is responsible for,and has a duty of care in making sure
that the machine is operated safely and in accordance with the instructions in this
user manual. Keep the manual safe and pass it on if the machine is loaned or soldto
another user.
1.3 Please note the following safety points.
1.4 The machine should never be left it in a condition which would allow an untrained or
unauthorised person/s to operate thismachine.
1.5 All due care and diligence should be taken by the operator for the safety of and with
regard to those around whilst using the machine.
1.6 Some or all of the following - warning signs, symbols and/or PPE pictograms may
appear throughout this manual. You MUST adhere to their warnings. Failure to do
so may result in personal injury to yourself or those aroundyou.
DANGER
Indicates a hazard, which, if not avoided, could result in serious injury or death.
WARNING
Indicates a hazard, which, if not avoided, could result in serious injury.
CAUTION
Indicates a hazard which, if not avoided, might result in minor or moderate injury.
NOTE
Indicates a situation that could easily result in equipment damage.
READ and keep the manual safe and pass it on if the machine is loaned or sold to another user.
You MUST fully understand all instructions to ensure you use and operate the machine safely.
Appropriate Personal Protective Equipment (PPE), MUST be worn at all times when operating or
repairing the machine.

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1.10 Carbon Monoxide (where applicable).
1.11 Carbon monoxide is a colourless and odourless gas. Inhaling this gas can cause
death as well as serious long term health problems such as braindamage.
1.12 The symptoms of carbon monoxide poisoning can include but are not limited to the
following;
Headaches, dizziness, nausea, breathlessness, collapsing or loss of consciousness.
1.13 Carbon monoxide poisoning symptoms are similar to flue, food poisoning, viral
infections and simply tiredness. It is quite common for people to mistake this very
dangerous poisoning for something else.
1.14 To avoid carbon monoxide poisoning DO NOT use Petrol/Diesel powered equipment
inside any of the following; Home, garage, tent, camper van, mobile home, caravan
or boat. This is not exhaustive and if you are in any doubt contact your dealer.
1.15 If you think you have or someone around you has been affected by carbon monoxide
poisoning;
1.16 Get them fresh air immediately, by leaving the affected area or by opening doors and
windows. If safe and practical to do so make sure that the machine is turned off.
DO NOT enter a room you suspect of having carbon monoxide present –instead call
the emergency services.
1.17 Contact a Doctor immediately or go to Hospital –let them know that you suspect
carbon monoxide poisoning.
1.18 DO NOT use in an enclosed area or moving vehicle.
1.20 General Fuel Safety (where applicable).
CAUTION
ALL FUELS ARE FLAMABLE
1.21 Fire Hazard –keep fuel away from all sources of ignition for example heaters.
Lamps, sparks from grinding or welding.
1.22 DO NOT carry out hot work on tanks that have contained fuel.
1.23 ALWAYS keep the work area tidy.
1.24 ALWAYS clean up spills promptly using absorbent granules and a lidded bin.
1.25 ALWAYS dispose of waste fuels correctly.

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1.30 Fueling/De-fueling (where applicable).
CAUTION
ALL FUELS ARE FLAMABLE
1.31 ALWAYS fuel and defuel in a well ventilated area outside of buildings.
1.32 ALWAYS wear correct, suitable and fit for purpose Personal Protective Equipment
(PPE), suggested items are but not limited to safety gloves, overalls.
1.33 When fueling/de-fueling ALWAYS avoid inhaling fumes.
1.34 When de-fueling ALWAYS use a proper fuel retriever.
1.35 ALWAYS carry fuel in the correct and clearly marked container.
1.40 Electrical Safety )where applicable).
1.41 Electricity can kill –NEVER work on LIVE/ENERGISED equipment.
1.42 Prior to carrying out any maintenance work you MUST identify electrical isolation
methods and isolate all electrical supplies.
1.43 Prior to use and with all electrical supplies isolated, you MUST check all electrical
cables, plugs and connectors for the following;
1.44 Are intact and have no signs of damage, to include but not limited to bare wires,
chaffing, cuts and loose wiring.
1.45 If there are any signs of damage, the damage item MUST be taken out of service
until the damage has been repaired by an electrically competent person.
1.46 All trailing cables should be routed so as not to cause any kind of trip hazard.
1.47 NEVER work on or near electricity with wet hands, wet clothing and wet gloves.

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1.50 Batteries (where present).
1.51 Batteries present a risk if they become damaged by the possible leaking of
electrolyte. This electrolyte is an acid and can cause serious burn injuries. Care
should be taken when working on or near them. NOTE the electrolyte may be in
a liquid or gel form.
1.52 Should you come in to contact with electrolyte you should;
1.53 Remove all clothing contaminated with electrolyte. If you cannot remove then
saturate them in water.
1.54 Get medical assistance as soon as possible. You must advise the medical staff of
the type of acid.
1.55 Lead/acid battery = dilute sulphuric acid.
1.56 Nickel/cadmium = potassium hydroxide alkali electrolyte.
1.57 Use fresh running water to wash off excess electrolyte, continue this until medical
assistance arrives. Make sure that you do not was the electrolyte to another part of
your body or face.
1.58 If electrolyte comes in to contact with Eyes the electrolyte needs to be immediately
washed away with large amounts of water. Make sure that you do not wash the
electrolyte to another part of your face or body.
1.59 Gasses from charging batteries are highly flammable and great care should be taken
to charge in well ventilated areas.
1.59.1 There is an explosion risk if the battery terminals are short circuited, when
connecting/disconnecting ALWAYS exercise great care so that the terminals or
battery leads are NOT allowed to touch and cause a spark. ALWAYS use suitable
insulated tools.
1.60 Vibrations (where applicable).
1.61 Prolonged use of hand held (operated) machines will cause the user to feel the
effects of/from vibrations. These vibrations can lead to white finger (Raynaud’s
phenomenon) or carpal tunnel syndrome. This condition reduces the ability of the
hand to feel and regulate temperature, causing numbness and heat sensations and
may cause never damage and circulatory tissue death.
1.62 Not all factors that lead to white finger disease are known, but cold weather, smoking
and other diseases that affect blood vessels and blood circulation as well as large
and long-lasting impact of shocks are considered factors in the formation of white
finger. Note the following to reduce the risk of white finger and carpal tunnel
syndrome;
1.63 Wear gloves and keep your hands warm.
1.64 Take regular breaks.
1.65 All of the above precautions may help reduce the risk of white finger disease but not
rule out the carpal tunnel syndrome. Long-term and regular users are therefore
recommended to observe the condition of your hands and fingers. Seek medical
attention immediately if any of the above symptoms should occur.

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1.70 Noise (where applicable).
1.71 The operating noise of the machine can damage your hearing. Wear hearing
protection such as earplugs or ear defenders to protect your hearing. Long-term
and regular users are advised to have hearing checked regularly. Be especially
vigilant and cautious when hearing ear protection because your ability to hear alarm
warnings will be reduced.
1.72 Noise emissions for this equipment is unavoidable. Carry out noisy work at approved
times and for certain periods. Limit the working time to a minimum. For your personal
protection and protection of people working nearby it is also advisable for them to
wear hearing protection.
1.73 See Certificate of Conformity section for Outdoor Noise declaration of
conformity.
MACHINE SPECIFIC SAFETY
1.80 General Machine Safety.
1.81 Read the owner’s manual carefully to understand how to operate this machine
properly.
1.82 You should NEVER use the machine when;
1.83 Wearing loose clothing, barefoot or sandals.
1.84 Under the influence of drink or drugs or as a result of having taken medication for
cold or flu, or any other times when a possibility exists that your judgement might be
impaired or that you might not be able to operate the machine properly and in a safe
manner.
1.85 Suffering from exhaustion or lack of sleep.
1.86 When the ground is slippery or when other conditions exist which might make it not
possible to maintain a steady posture.
1.87 At night, at times of heavy fog, or at any other times when your field of vision might
be limited and it would be difficult to gain a clear view of the area.
1.88 During rain storms, lighting storms, at times of strong or gale force winds, or at
any other times when the weather conditions might make it unsafe to use this
product.
1.89 NEVER run the engine indoors. The exhaust gasses contain harmful carbon
monoxide.
1.90 When using this machine for the first time and before actual work, you MUST learn
how to handle the machine from an experienced or skilled person.
1.91 Limit the amount of time using the machine continuously to somewhere around 10
minutes per session and take 10 to 20 minutes of rest between sessions. Also try to
keep the total amount of work in a single day limited to 2 hours or less.
1.92 NEVER allow children or anyone unable to fully understand the directions given in
this manual to operate this product.

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1.93 Make sure you keep this manual handy so you may refer to it whenever questions
arise and ensure you pass this manual on if the machine is loaned orsold.
1.94 Correct Personal Protective Equipment (PPE) MUST be worn at all times when
operating or repairing this machine. This should include but is not limitedto;
1.95 DO NOT use this machine inside a confined space such as but not limited to a
vehicle, house, garage, container, boat or building. Only use outside in a well
ventilated area.
1.96 For air cooling a minimum of 1m is required all around the machine.
1.97 Maximum ambient temperature 40 degrees Celsius.
1.98 Fire risk- Fuel can expand and overflow in a hot environment or movingvehicle.
1.99 Explosion risk- LPG/ Petrol can leak and the vapour is heavier than air. Never store
in confined spaces especially in a boat where the vapour/has will accumulate in the
hull and create a high risk of explosion.
1.99.1 Carbon monoxide poisoning risk- Never run an engine in a confined space or poorly
ventilated area. Keep the machine away from windows to prevent fumes entering the
internal space. Carbon monoxide is produced by the engine and contained in the
exhaust fumes. You cannot see it or smell it and it can kill you in minutes.
1.99.2 Never use inside a confined space with an exhaust extension. If the exhaust
extension fails the escaping exhaust gases could kill you.

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2. PART LOCATIONS
1
Fuel Filler Cap
2
Primer Bulb
3
Air Filter
4
Spark Plug
5
Exhaust
6
Oil Filler Cap
7
Recoil Starter Handle
8
Cutting Head
9
Cutting Head Shield
10
Drive Shaft Locking Knob
11
Front Handle
12
Rear Handle
13
Harness Hook
14
Choke Button
15
Harness

10
3. ASSEMBLY
WARNING
To prevent an accidental start that could cause serious personal injury, always
disconnect the engine spark plug HT lead from the spark plug when assembling
parts.
WARNING
Never install, remove or adjust any attachments while power head is running.
Failure to stop the engine can cause serious personal injury.
2.0 Rotate the hub slowly to align the hole in the hub to the hole in the gearbox.
2.1 Lock the hub firmly using the screwdriver provided by aligning and insert through the
two holes as shown in the picture.
2.2 With the hub locked, screw the spool onto the gearbox in a clockwise direction until
it cannot rotate any further.
2.3 Remove the screw from the cutting head protection guard.
2.4 Insert the left tab in to the slot on the protection guard.
2.5 Align the screw hole in the mounting bracket with the screw hole into the
protection guard.
2.6 Tighten the screw through the mounting bracket and into the protection guard using
the screwdriver provided.

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2.7 To connect the upper and lower shaft, loosed the drive shaft locking knob.
2.8 Insert the lower shaft into the upper shaft and rotate slowly until the button locks
into the positioning hole (the fixing hole is opposite the knob).
NOTE if the button does not release completely in to the positioning hole, the shafts
are not locked into place. Slightly rotate from side to side until the button is locked
into place.
2.9 Turn the drive shaft locking knob clockwise to tighten the coupler.
WARNING
Be certain the knob is fully tightened before operating the machine.
Check it periodically for tightness during use to avoid serious personal injury.
2.10 To remove the attachment, turn the knob counter clockwise to loosen the coupler.
2.11 Press the hold the release button.
2.12 Pull the attachment straight out of the coupler.
2.13 To install and adjust the front handle.
2.14 There are 3 positions where the front handle can be fixed with 4 screws as shown in
the picture below.
Select the suitable position according to the height of the operator.
2.15 Screw the front handle and holder into position using the screws provided.
2.16 Tighten the 4 screws until the handle is secure.

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2.17 The harness, with quick-release function, can be installed to the harness hook
behind the rear handle.
4. PRE OPERATION CHECKS
WARNING
This machine is shipped without oil and fuel.
You MUST ensure all fluid levels are correct before operation otherwise you may
cause serious engine damage that will not be covered by the warranty.
WARNING
ALWAYS use a semi-synthetic 4 stroke SAE 10W30 engine oil and straight
unleaded petrol.
DO NOT mix the fuel with the oil.
You MUST check the engine oil level before each use.
3.0 To add engine oil, remove the attachment from the power head and place of a flat,
level surface.
3.1 Unscrew the oil filler cap.
3.2 Slowly pour 60ml of semi-synthetic 4 stroke SAE 10W30 engine oil into the crank
case until it reaches the top of the oil fill hole.
DO NOT overfill. Overfilling the crankcase may cause excessive smoke, oil loss and
engine damage.
3.3 Replace the oil filler cap and tighten securely.

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WARNING
Petrol and its vapours are highly flammable and explosive.
To prevent serious personal injury and property damage, handle it with care.
Keep away from ignition sources and open flames, handle outdoors only in a well
ventilated area.
DO NOT smoke and wipe up any spills immediately.
ALWAYS shut off the engine and allow to cool BEFORE fueling.
NEVER add fuel to a running or hot machine.
ALWAYS refuel in a well ventilated area, away from buildings or sources of ignition.
Move at least 30 feet from the refuelling area before starting the machine.
NEVER operate the machine without the fuel cap.
Failure to safely handle fuel could result in serious personal injury.
3.4 Place the machine on a flat, level surface and remove the fuel filler cap.
3.5 Carefully pour petrol into the fuel tank.
NOTE: This is a 4 stroke machine so DO NOT mix fuel with oil.
3.6 Leave a 25mm gap between the fuel and the top of the fuel tank.
3.7 Replace the fuel filler cap and tighten securely.
3.8 Wipe up any spills immediately.
5. STARTING PROCEDURE
WARNING
This machine is shipped without oil and fuel.
You MUST ensure all fluid levels are correct before operation otherwise you may
cause serious engine damage that will not be covered by the warranty.
FROM COLD
4.0 Place the machine on flat level ground before starting.
4.1 Turn the ignition switch to the ‘I’ ON position.
4.2 Slowly press the primer bulb 5 to 10 times.
NOTE: After the 7th press, fuel should be visible in the primer bulb.
If it is not, continue to press the primer bulb until you see fuel in the bulb.
4.3 Push the choke button in, to set the choke to FULL CHOKE position.
NOTE: Do not squeeze the throttle trigger because the choke will pop out
automatically.
4.4 Pull the recoil starter handle until you feel resistance.
Once you feel resistance, pull the recoil starter handle swiftly 3 to 5 times or until you
hear the engine turn over or begin to start.

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4.5 Allow the engine to run for 10 seconds then squeeze the throttle to release the choke
in to the RUN position.
FROM WARM
4.6 Place the machine on flat level ground before starting.
4.7 Turn the ignition switch to the ‘I’ ON position.
4.8 Ensure the primer bulb has fuel inside.
4.9 Pull the recoil starter handle until you feel resistance.
Once you feel resistance, pull the recoil starter handle swiftly 3 to 5 times or until the
engine starts.
6. STOPPING PROCEDURE
5.0 Allow the engine to idle for 20 seconds under no load.
5.1 Turn the ignition switch to the ‘STOP’ position.
5.2 The machine should now stop.
7. USING THE MACHINE
CAUTION
Engine housing can become hot during trimmer operation.
DO NOT rest or place your arm, hand or any body part against the engine housing
during trimmer operation.
Extended contact with the engine housing can result in burns or other injuries.
ALWAYS position the unit on the operator’s right side.
The use of the machine on the operator’s left side will expose the user to hot
surfaces and can result in possible burn injuries.
To avoid burns from hot surfaces, NEVER operate the machine with the bottom
of the engine above waist level.
6.0 The cutting head spool will be engaged if the operator squeezes the throttle lever
and the squeezes the throttle lever release to increase the engine speed.
6.1 The engine will stop when depressing the switch to the ‘STOP’ position.
NOTE: This ignition switch will come back to the ‘ON’ position automatically.
6.2 Hold the trimmer with your right hand on the rear handle and your left hand on the
front handle.
6.3 Keep a firm grip with both hands while in operation.
6.4 Trimmer should be held at a comfortable position with the rear handle at about hip
height.
6.5 Keep your body and feet a safe distance from the cutting head.
6.6 Squeeze the throttle lever to full speed before cutting.

15
6.7 The cutting line should run parallel to the ground surface.
6.8 The line spool has a bump feed function.
6.9 The line will be extended by tapping the spool head shortly and lightly onto the
ground while the unit is running at high speed.
6.10 Run the engine at high speed.
6.11 Tap the spool head on bare ground to release line.
6.12 A blade in the cutting head shield will cut the line to the proper length if any excess
line is released.
NOTE: DO NOT hold the spool head on the ground while the engine is running.
The line releases each time the spool head is tapped.
6.13 Always keep the trimming line fully extended.
6.14 Line release becomes more difficult when the cutting line gets shorter.
6.15 Avoid hot surfaces by always keeping the tool away from your body.
6.16 Cut all grass from top to down.
This will prevent grass from wrapping around the shaft housing and string head
which could cause damage from overheating.
6.17 If grass becomes wrapped around the string head, STOP THE ENGINE, disconnect
the speak plug HT lead and remove the grass.
6.18 Use the tip of line to trim grass, DO NOT force trimming head into uncut grass.
6.19 Avoid trees, flowers, stones, walls and other objects which can cause linebreakage.
6.20 Check and feed the line regularly to maintain full cutting width and performance.

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8. MAINTENANCE
WARNING
Before cleaning, inspecting or repairing your unit, you MUST make sure that the
engine has stopped and allowed to cool.
You MUST disconnect the spark plug HT lead cap to prevent any accidental starting.
CAUTION
ALWAYS refuel in a well-ventilated area with the engine off and the spark plug HT
cap removed.
Whilst carrying out maintenance you MUST wear appropriate Personal Protective
Equipment (PPE). Suggested PPE Sturdy footwear, work gloves, long trousers and
hearing protection.
NOTE
Spare parts –If a part needs replacement, you MUST only use parts that meet the
manufacturer’s part number specifications.
Replacement parts that DO NOT meet specifications may result in a safety hazard or
poor operation of the generator and will VOID the warranty.
Major servicing including installation or replacement parts, should be made by a
qualified service technician.
Item
Maintenance
Every
Usage
1st month
or 20
hours
Every 3
months or
50 hours
Every 6
months or
100 hours
Every 12
month or
200 hours
Engine Oil
Check Level
X
Change
X
X
Air Filter
Check
X
Clean
X*
Spark Plug
Check/Adjust
X
Replace
X
Valve
Clearance
Check/Adjust
X**
Combustion
Chamber
Clean
After every 300 hrs**
Fuel Tank &
Filter
Clean
X**
Fuel Line
Clean
Every 2 years, replace if necessary**
* More frequently in dusty environments.
** Work to be carried out by a qualified engineer or your service dealer.

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AIR FILTER
CAUTION
The engine MUST NOT be run without an air filter otherwise piston and/or cylinder
damage can occur.
This type of damage will NOT be covered under warranty.
Maintaining the air filter is very important.
If dirt is allowed to get in to the engine through improperly installed, serviced or
inadequate filter elements, it can damage and wear out the engine.
ALWAYS keep the filter element clean.
7.0 Press down on the latch tab on the top of the air filter housing and open the air
filter cover.
7.1 Remove the air filter.
7.2 Clean the filter with a jet of dry compressed air until all dust and debris has been
removed.
NOTE: DO NOT allow any dirt or debris to enter the carburetor chamber as this
could cause rapid engine wear.
7.3 Reinstall the air filter and close the air filter cover.
SPARK PLUG
7.4 Carefully remove the spark plug HT lead cap.
7.5 Remove the spark plug using the box spanner provided in an anti-clockwise
direction.
7.6 Check the spark plug for visible damage and electrode erosion.
7.7 If damaged you MUST replace the spark plug.
7.8 Remove carbon deposits from the spark plug using a soft wire brush.

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0.6 –0.8mm
7.9 The spark plug gap should be 0.6 –0.8mm.
Check the gap using a feeler gauge and adjust as necessary by carefully bending
the side electrode to achieve the correct gap.
7.10 Refit the cleaned and adjusted spark plug by hand to avoid cross-threading.
7.11 After spark plug seats then tighten as necessary but avoid over-tightening.
7.12 Re-attach the spark plug HT lead cap and spark plug maintenance cover.
CUTTING LINE
7.13 Open the cutting line spool by pressing the two release buttons on the side and
take out the winding core (A+B).
7.14 Divide the cutting line in to 2 equal halves.
7.15 Fix it in the winding core and start to wind the cutting line in to the two separated
rails (B). Please follow the indicated winding.

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7.16 Fix the 2 line ends at the opening (15cm) to keep the line winded tightly (C).
7.17 Guide the 2 line ends into the holes on the spool housing and refit the spool cover
(D).
OIL
CAUTION
ALWAYS use a semi-synthetic 4 stroke SAE 10W30 engine oil and straight
unleaded petrol.
DO NOT mix the fuel with the oil.
You MUST check the engine oil level before each use.
7.18 To add engine oil, remove the attachment from the power head and place of a flat,
level surface.
7.19 Unscrew the oil filler cap.
7.20 Slowly pour 60ml of semi-synthetic 4 stroke SAE 10W30 engine oil into the crank
case until it reaches the top of the oil fill hole.
DO NOT overfill. Overfilling the crankcase may cause excessive smoke, oil loss and
engine damage.

20
7.21 If you do overfill, drain the oil in to a suitable container by pouring excess oil
out through the oil filler cap.
7.22 Replace the oil filler cap and tighten securely.
TRANSPORT
7.23 For transport, do not overfill the fuel tank.
7.24 If the generator has been used, allow it to cool for at least 15 minutes before loading
it in to the transport vehicle.
7.25 To prevent fuel spillage, the generator should be secured upright in its normal
working position with the start switch in the OFF position and the fuel cap vent lever
in the OFF position.
7.26 If transporting over rough terrain, remove all the fuel from the fuel tank.
7.27 DO NOT drop or strike the generator when transporting.
7.28 DO NOT place heavy objects on top of the generator.
STORAGE
7.29 The following steps should be taken if you store the generator for more than 30days.
7.30 Drain all the fuel from the fuel tank into a suitable container.
7.31 Remove the maintenance cover to gain access to the carburetor.
7.32 Turn the engine switch to the ‘ON’ position and loosen the carburetor drain screw to
allow the fuel in the carburetor to drain into a suitable container.
7.33 Remove the spark plug HT lead cap and pull the recoil starter handle three to four
times to remove all the fuel from the fuel lines.
7.34 Turn the engine switch to the ‘OFF’ position and tighten the carburetor drain plug
screw.
7.35 Change the engine oil following the procedure 6.14 to 6.20.
7.36 Remove the spark plug and pour a tablespoon of fresh engine oil down the cylinder
bore.
7.37 Pull the recoil starter handle three to four times to distribute the oil along the cylinder
bore, then refit the spark plug.
7.38 Store in a dry place away from sources of ignition.
7.39 Do not stack items on top of the grass trimmer.