TitanTec TT-GD620T-3 User manual

TT-GD620T-3
1

SAFETY FIRST
Instructions contained in warnings within this
manual marked with a symbol concern
critical points which must be taken into
consideration to prevent possible serious bodily
injury, and for this reason you are requested to
read all such instructions carefully and follow
them without fail.
■WARNINGS IN THE MANUAL
WARNING
This mark indicates instructions which must be
followed in order to prevent accidents which
could lead to serious bodily injury or death.
IMPORTANT
This mark indicates instructions which must be
followed, or it leads to mechanical failure,
breakdown, or damage.
NOTE
This mark indicates hints or directions useful in
the use of the product.
CONTENTS
1. Parts location ………………………………………………………………………………………………………………………………3
2. Specifications …………………………………………………………………………………………………………………………4
3. Symbols on the machine …………………………………………………………………………………………………………………4
4. Warning labels on the machine……………………………………………………………………….……………………………5
5. For safe operation …………………………………………………………………………………………………………………………6
6. Fuel………………………………………………………………………………………………………………………………………………11
7. Operation ……………………………………………………………………………………………………………………………………12
8. Maintenance …………………………………………………………………………………………………………………………………14
9. Storage …………………………………………………………………………………………………………………………………………15
10. Troubleshooting guide…………………………………………………………………………………………………………………16

1. Parts location
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１． Ｔｈｒｏｔｔｌｅ Ａｓｓｙ 4. Gear transmission
２． Ｌｅｆｔ Ｈａｎｄｌｅ ５． Ｆｒａｍｅ
３． Ｅｎｇｉｎｅ Ａｓｓｙ ６． Ｄｒｉｌｌｅｒ （ｏｐｔｉｏｎａｌ）

2. Specification
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Model number
Engine type
Engine displacement
62 CC
Maximum engine power
Engine Max speed 10000 min-1
Engine idling speed 3000±300 min-1
Fuel Mixture Petrol 25 : Oil 1
Volume of fuel tank
Recoil
Spark plug
Carburetor Diaphragm type
Weight(without driller and petrol) 9.0 kg
Tested sound pressure level, LPA (2000/14/EC) LPA: 107.7 dB(A), k=3 dB(A)
Guaranteed sound power level, LWA (2000/14/EC) LWA: 113 dB(A), k=3 dB(A)
Vibration level 21.206m/s2, K=1.5 m/s2
Max driller speed 300 min-1
Driller size (φ60~φ300)MM*80CM
Standard Driller φ100MM, φ150MM, φ200MM
Gear box lubricant Gear oil SAE#80-90
Note: Specifications are subject to change without notice.
3. Symbols on the machine
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For safe operation and maintenance, symbols are carved in relief on the machine. According to these
indications, please be careful not to make a mistake.
For safe operation and maintenance, symbols are carved in relief on the machine. According to these
indications, please be careful not to make a mistake.
CHOKE OPERATION
Starting mode when the engine is hot (choke off ).
Position: AIR CLEANER COVER
Starting mode when the engine is cold (choke on).
Position: AIR CLEANER COVER
Starter 1000 ml
TT-GD620T-3
TT-1E47.5
2.6kw/8500rpm
F(air-cooled, 2-stroke)
TORCH L8RTF

4. Warning labels on the machine
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WARNING!
Improper Condition Can
Cause Serious Injury
Don’t work under raining days.
Read the instruction manual
completely and carefully
before using the power tool.
Don’t smoke or allow flames on
the machine
Wear hearing protection!
Danger of hot components
Wear safety glasses!
Wear protective gloves.
Wear safety footwear
The guaranteed noise level
IMPORTANT
If warning label peel off or become soiled and impossible to read, you should contact the dealer from
which you purchased the product to order new labels and affix them in the required location(s).
WARNING
Never modify your product. We won't warrant the machine, if you use the remodeled brush cutter or
you don't observe the proper usage written in the manual.

5. For safe operation
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1. Read this manual carefully until you completely understand and
follow all safety and operating instructions.
2. Keep this manual handy so that you may refer to it later
whenever any questions arise. Also note, if you have any questions
which cannot be answered herein, contact the dealer from whom
you purchased the product.
3. Always be sure to include this manual when selling, lending, or
otherwise transferring the ownership of this product.
4. Never allow children or anyone unable to fully understand the
directions given in the manual to use the machine.
■WORKING CONDITION
1. When using the product, you should wear proper clothing and
protective equipment.
(1) Helmet
(2) Ear protectors
(3) Protection goggles or face protector
(4) Thick work gloves
(5) Non-slip-sole work boots
2. And you should carry with you.
(1) Attached tools and files
(2) Properly reserved fuel
(3) Spare blade
(4) Things to notify your working area (rope, warning signs)
(5) Whistle (for collaboration or emergency)
(6) Hatchet or saw (for removal of obstacles)
3. Do not wear loose clothing, jewelry, short trousers, sandals, or
go barefoot. Do not wear anything which might be caught by a
moving part of the unit. Secure hair so it is above shoulder length.
■WORKING CIRCUMSTANCE
1. Never start the engine inside a closed room or building. Exhaust
gases contain dangerous carbon monoxide.
2. Never use the product,
a. when the ground is slippery or when you can’t maintain a steady
posture.

5. For safe operation
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b. 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 working area.
c. During rain storms, during lightning storms, at times of strong
or gale-force winds, or at any other times when weather conditions
might make it unsafe to use the product.
■WORKING PLAN
1. You should never use the product when under the influence of
alcohol, when suffering from exhaustion or lack of sleep, when
suffering from drowsiness as a result of having taken cold medicine
or at any other time when a possibility exists that your judgment
might be impaired or that you might not be able to operate the
product properly and in a safe manner.
2. When planning your work schedule, allow plenty of time to rest.
Limit the amount of time over which the product is to be used
continuously to somewhere around 30~40 minutes per session,
and take 10~20 minutes of rest between work sessions. Also try to
keep the total amount of work performed in a single day under 2
hours or less.
WARNING
1. If you don’t observe the working time, or working manner
(See ■USING THE PRODUCT), Repetitive Stress Injury (RSI)
could occur. If you feel discomfort, redness and swelling of
your fingers or any other part of your body, see a doctor
before getting worse.
2.
3. To avoid noise complaints, in general, operate product
between 8a.m. and 5p.m. on weekdays and 9a.m. to 5p.m.
weekends.
NOTE
Check and follow the local regulations as to sound level and hours
of operations for the product.
■BEFORE STARTING THE ENGINE
1. The area within a perimeter of 50 feet (15m) of the person using
the product should be considered a hazardous area into which no
one should enter. If necessary, yellow warning rope, warning signs
should be placed around the perimeter of the area. When work is
to be performed simultaneously by two or more persons, care
should also be taken to constantly look around or otherwise check
for the presence and locations of other people working so as to
maintain a distance between each person sufficient to ensure
safety.

5. For safe operation
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2. Check the condition of working area to avoid any accident by
hitting hidden obstacles such as stumps, stones, cans, or broken
grass.
IMPORTANT
Remove any obstacle before beginning work.
3. Inspect the entire unit for loose fasteners and fuel leakage. Make
sure that the driller is properly installed and securely fastened.
■STARTING THE ENGINE
1. Keep bystanders and animals at least 50feet (15m) away from
the operating point. If you are approached, immediately stop the
engine.
2. The product is equipped with a centrifugal clutch mechanism, so
the driller begins to rotate as soon as the engine is started by
putting the throttle into the start position. When starting the
engine, place the product onto the ground in a flat clear area and
hold it firmly in place so as to ensure that neither the driller nor the
throttle come into contact with any obstacle when the engine
starts.
WARNING
Never place the throttle into the high speed position when
starting the engine.
3. After starting the engine, check to make sure that the cutting
attachment stops rotating when the throttle is moved fully back to
its original position. If it continues to rotate even after the throttle
has been moved fully back, turn off the engine and take the unit to
your authorized servicing dealer for repair.
■USING THE PRODUCT
IMPORTANT
Drill only materials recommended by the manufacturer. And use
only for tasks explained in the manual.
1. Grip the handles firmly with both hands using your whole hand.
Place your feet slightly apart (slightly further apart than the width
of your shoulders) so that your weight is distributed evenly across
both legs, and always be sure to maintain a steady, even posture
while working.
2. Maintain the speed of the engine at the level required to
perform drilling work, and never raise the speed of the engine
above the level necessary.

5. For safe operation
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3. If the unit start to shake or vibrate, turn off the engine and check
the whole unit. Do not use it until the trouble has been properly
corrected.
5. Keep all parts of your body away from rotating cutting
attachment and hot surfaces.
6. Never touch the muffler, spark plug, or other metallic parts of
the engine while the engine is in operation or immediately after
shutting down the engine. Doing so could result in serious burns or
electrical shock.
• IF SOMEONE COMES
1. Guard against hazardous situations at all times. Warn adults to
keep pets and children away from the area. Be careful if you are
approached. Injury may result from flying debris.
2. If someone calls out or otherwise interrupts you while working,
always be sure to turn off the engine before turning around.
■MAINTENANCE
1. In order to maintain your product in proper working order,
perform the maintenance and checking operations described in the
manual at regular intervals.
2. Always be sure to turn off the engine before performing any
maintenance or checking procedures.
WARNING
The metallic parts reach high temperatures immediately after
stopping the engine.
3. Under no circumstances should you ever take apart the product
or alter it in any way. Doing so might result in the product
becoming damaged during operation or the product becoming
unable to operate properly.
■HANDLING FUEL
1. The engine of the product is designed to run on a mixed fuel
which contains highly flammable gasoline. Never store cans of fuel
or refill the tank of the unit in any place where there is a boiler,
stove, wood fire, electrical sparks, welding sparks, or any other
source of heat or fire which might ignite the fuel.
2. Never smoke while operating the unit or refilling its fuel tank.

5. For safe operation
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3. When refilling the tank, always turn off the engine and allow it to
cool down. Take a careful look around to make sure that there are
no sparks or open flames anywhere nearby before refueling.
4. Wipe spilled fuel completely using a dry rag if any fuel spillage
occurs during refueling.
5. After refueling, screw the fuel cap back tightly onto the fuel tank
and then carry the unit to a spot 10feet (3m) or more away from
where it was refueled before turning on the engine.
■TRANSPORTATION
1. When hand-carrying the product, cover over the cutting part if
necessary, lift up the product and carry it paying attention to the
blade.
2. Never transport the product over rough roads over long
distances by vehicle without removing all fuel from the fuel tank. If
doing so, fuel might leak from the tank during transport.

6. Fuel
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Mixing ratios:
When using commercially
available 2-cycle oil (FB grade):
25:1
(160 ml of oil for every 4 liters
of gasoline)
WARNING
• Gasoline is very flammable. Avoid smoking or bringing any
flame or sparks near fuel.
• Wipe up all spills before starting the engine.
• Make sure to stop the engine and allow it cool before refueling
the unit.
• Keep open flames away from the area where fuel is handled or
stored.
IMPORTANT
• Never use oil for 4 cycle engine use or water cooled 2-cycle
engine.
• Never use "FUEL WITH NO OIL (RAW GASOLINE)".
• Never use fuel laced with water.
• Mixed fuels which have been left unused for a period of one
month or more may clog the carburetor or result in the engine
failing to operate properly. Put remained fuel into an air-tight
container and keep it in the dark and cool room.
• Please ask for “mixed gasoline for air-cooled 2-cycle engines” at
your nearest gas station, or use fuel made by putting unleaded
gasoline for automobiles and air-cooled 2-cycle engine oil into a
mixing container in accordance with the following ratios and then
shaking to mix well.
■HOW TO MIX FUEL
1. Measure out the quantities of petrol and oil to be mixed.
2. Put some of the petrol into the clean, approved fuel container
supplied.
3. Pour in the oil and agitate well.
4. Be careful that, if the agitation is insufficient, there is an
increased danger of early piston seizing due to abnormally lean
mixture.
■FUELING THE UNIT
1. Untwist and remove the fuel cap. Rest the cap on a dustless
place.
2. Pour fuel into the fuel tank to 80% of the full capacity.
3. Fasten the fuel cap securely and wipe up any fuel spillage around
the unit.
WARNING
1. Select bare ground for fueling.
2. Move at least 10ft (3m) away from the fueling point before
starting the engine.
3. Stop the engine before refueling the unit. At that time, be sure to
sufficiently agitate the mixed petrol in the container.
4. In the case of storing the product for a long period of time, clean
the fuel tank after rendering it empty. Next, activate the engine and
empty the carburetor of the composite fuel.

7. Operation
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■INSTALLING DRILLER
1. Put the driller (2) onto the drive shaft (1) of
the auger.
2. Secure the driller (2) with the screw (3) and
the nut (4), tighten them.
■STARTING ENGINE
WARNING
The driller will start rotating upon the engine
starts.
1. Feed fuel into the fuel tank and tighten the
cap securely.
2. Rest the unit on a flat, firm place. Keep the
driller off the ground and clear of
surrounding objects as it will start rotating
upon starting of the engine.
3. Push the primer pump several times until
overflown fuel flows out in the return tube.
4. Move the choke lever to the OFF position.
5. Set the ignition switch to the “ON” position.
6. Place the unit on a flat, firm place. While
holding the unit firmly, pull out the starter
rope quickly until engine fires.
IMPORTANT
• Avoid pulling the rope to its end or
returning it by releasing the knob. Such actions
can cause starter failures.

7. Operation
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7. Move the choke lever to the ON position.
And pull out the starter rope quickly to
restart engine.
8. Allow the engine to warm up for several
minutes before starting operation.
NOTE
1. When restarting the engine immediately
after stopping it, leave the choke at ON
position.
2. Overchoking can make the engine hard to
start due to excess fuel. When the engine
failed to start after several attempts, open
the choke and repeat pulling the rope, or
remove the spark plug and dry it.
■STOPPING ENGINE
1. Release the throttle lever and run the engine
for a half minute.
2. Shift the ignition switch to the OFF position.
NOTE
• Except for an emergency, avoid stopping the
engine while pulling the throttle lever.
■ADJUSTING IDLING SPEED (
1. When the engine tends stop frequently at
idling mode, turn the adjusting screw clockwise.
2. When the cutting head keeps rotating after
releasing the trigger, turn the adjusting screw
(1) Idle speed adjuster
NOTE
• Warm up the engine before adjusting the
idling speed.
■DRILLING
•Keep a firm grip of the auger at all times on a
wide stance and by holding the handle with both
hands.
•A reacting motion may occur on the auger
when spinning driller has hit on stones or tree
roots under the ground. Always hold the auger
securely to control such motion.
•Start drilling with half-throttle, and gradually
increase the engine speed so that the driller may
get into the ground smoothly.
•When the drill has been caught in the ground
and cannot be pulled out, stop the engine and
rotate the auger counter-clockwise.

8. Maintenance
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MAINTENANCE CHART
System/components
Procedure
Before
use
Every
25
hours
after
Every
50
hours
after
Every
100
hours
after
Note
fuel leaks, fuel spillage
wipe out
✔
fuel tank, air filter, fuel filter
inspect/clean
✔
✔
replace, if necessary
idle speed adjuster
see adjusting idling
speed
✔
replace carburetor if
necessary
spark plug
clean and readjust
plug gap
✔
GAP: .025 in (0.6 ~ 0.7
mm) replace, if necessary
intake air cooling vent
clean
✔
throttle trigger, stop switch
check operation
✔
Pump inlet valve
replace if
something’s wrong
✔
screws/nuts/bolts
tighten/replace
✔
✔
not adjusting screws
•Before cleaning, inspecting, or repairing the unit, make sure that the engine has stopped and is
cool.
•Use protective gloves whenever inspecting, removing and installing the drill.
WARNING
• Always be sure to stop the engine before
inspecting the brush cutter for problems or
performing maintenance.
• Never alter the auger or take the engine
apart.
■AIR FILTER
• The air filter, if clogged, will reduce the
engine performance. Monthly check and clean
the filter element in warm, soapy water as
required. Dry completely before installing. If the
element is broken or shrunk, replace with a new
one.
(1) Air filter
■FUEL FILTER
• When the engine runs short of fuel supply,
check the fuel cap and the fuel filter for
blockage.
(1) Fuel filter
•If the fuel filter is clogged, the engine speed
may be limited or speed fluctuations may occur.
•If the engine is operated without a fuel filter,
dirt will accumulate in the carburetor and cause
damage.
■SPARK PLUG
• Starting failure and mis-firing are often
caused by a fouled spark plug. Periodically clean
the spark plug and check that the spark gap is in
the correct range.
• When you take off the spark plug, twist and
pull off the cap.
• The correct electrode is 0.6~0.7mm.

8. Maintenance
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IMPORTANT
• Note that using any spark plugs other than
those designated may result in the engine failing
to operate properly or in the engine becoming
overheated and damaged.
• To install the spark plug, first turn the plug
until it is finger tight, then tighten it a quarter
turn more with a socket wrench.
TIGHTENING TORQUE: 9.8~11.8 N.m
■MUFFLER
WARNING
• Inspect periodically, the muffler for loose
fasteners, any damage or corrosion. If any sign
of exhaust leakage is found, do not use the
brush cutter and have it repaired immediately.
• Note that failing to do so may result in the
engine catching on fire.
■INTAKE AIR COOLING VENT
• Check the intake air cooling vent and the
area around the cylinder cooling fins after every
25 hours of use for blockage, and remove any
waste which has attached itself to the brush
cutter. Note that it is necessary to remove the
plug guard shown in Figure in order to be able to
view the upper part of the cylinder.
IMPORTANT
• If waste gets stuck and causes blockage
around the intake air cooling vent or between
the cylinder fins, it may cause the engine to
overheat, and that in turn may cause mechanical
failure on the part of the brush cutter.
(1) Cylinder fin
(2) Intake air cooling vent (back)
■DRILLER
• Make sure to use the sharp driller.
• Replace if the bit or the tip is worn and the
driller may not get into the object smoothly.
9. Storage
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WARNING
• Aged fuel is one of major causes of engine starting failure.
1. Drain a fuel tank and push the primer bulb until it becomes empty of fuel.
2. Remove the spark plug and drop a spoonful of 2-cycle oil into the cylinder. Crank the engine several
times and replace the plug.
3. Brush off dirt from the drill surface and apply rust protective oil.
4. Store the machine in a dry, dust-free place.

10. Troubleshooting guide
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Case 1. Starting failure
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CHECK PROBABLE CAUSES ACTION
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fuel tank ➞incorrect fuel ➞drain it and use correct fuel
fuel filter ➞fuel filter is clogged ➞clean
carburetor adjustment screw ➞out of normal range ➞adjust to normal range
sparking (no spark) ➞spark plug is fouled/wet ➞clean/dry
➞plug gap is incorrect ➞correct (GAP: 0.6~0.7mm)
spark plug ➞disconnected ➞re-tighten
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Case 2. Engine starts but does not keep running/Hard re-starting.
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CHECK PROBABLE CAUSES ACTION
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fuel tank ➞incorrect fuel or staled fuel ➞drain it and with correct fuel
carburetor adjustment screw ➞out of normal range ➞adjust to normal range
muffler,cylinder (exhaust port)➞carbon is built-up ➞wipe away
air cleaner ➞clogged with dust ➞air blow or wash
cylinder fin, fan cover ➞clogged with dust ➞clean
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When your unit seems to need further service, please consult with service shop in your area.