Mitox 435 U User manual

Operator’s Manual
user manual, maintenance instructions and spare parts
435 L/U Brushcutter
www.mitoxgm.co.uk
Read this manual carefully before operating the machine
Original Instructions Version December 12

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Original Instructions Version December 12
Component Location
PRODUCT DESCRIPTION
This Brushcutter is a 4 stroke fast running power tool and is designed to be used in a
domestic application for trimming grass and light brush.

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Original Instructions Version December 12
Warnings in the Manual
This mark indicates instructions which must be followed in order to prevent accidents which could lead to
serious bodily injury or death.
This mark indicates instructions which must be followed or it leads to mechanical failure, breakdown, or
damage.
This mark indicates hints or useful directions in the use of the product.
Component Location
PRODUCT DESCRIPTION
This Brushcutter is a 4 stroke fast running power tool and is designed to be used in a
domestic application for trimming grass and light brush.
IMPORTANT
!
NOTE
Component Location
1 BLADE 3 Point blade for grass, weed or brush cutting applications.
2 DRIVE SHAFT Contains the drive shaft.
3 THROTTLE TRIGGER Spring loaded to return to idle when released.
4 IGNITION SWITCH Slide switch, forward to run, back to stop.
5 SAFETY LEVER Prevents accidental operation of the throttle.
6 HANDLE This handle can be adjusted for maximum comfort
7 HARNESS ASSEMBLY Fully adjustable for maximum comfort
8 PETROL CAP
9 PURGE BULB Push the purge bulb to remove the air from the fuel system.
10 FUEL TANK Contains fuel and fuel lter.
11 AIR CLEANER Contains replaceable lter.
12 CHOKE To help in cold starting.
13 STARTER HANDLE Pull to start the engine.
14 DEBRIS SHIELD Helps protect the operator from debris.
15 CUT-OFF KNIFE Cuts the nylon line to the correct length.
16 NYLON CUTTER HEAD Contains replaceable nylon trimming line.
17 FRONT HANDLE This handle can be adjusted for maximum comfort.
18 GEARBOX For attaching a blade or nylon head to.
19 REAR HANDLE Incorporating throttle trigger, switch, and safety lever.
20 HARNESS FIXING POINT Fixing point to attach the harness.
21 BLADE COVER Blade cover for transportation.
22 OIL FILLER Filler for the engine oil.

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Original Instructions Version December 12
Safety Symbols
Warning: Danger, Caution
Read the documentation and safety instructions which are provided
in this user manual.
When operating this machine, use protective equipment such as
goggles, helmet and ear defenders.
Wear security shoes and gloves.
Beware: Keep hands and feet away from moving parts. Always keep a
safe distance from the cutting parts.
Hot surface: Risk of burn.
Danger: Risk of intoxication.
Danger: Risk of re or explosion
Directive 2000-14/CE. Guaranteed noise levels
Beware of objects being thrown from the operating zone
Warning: Keep all people, animals and vulnerable objects at least 15
metres from the working area.

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Original Instructions Version December 12
Taking Care of Warning Labels
Always keep warning labels clean and free of scratches, which might make them illegible or
dicult to read. If the warning labels provided with your Brushcutter become damaged, peel
o, or otherwise become illegible or dicult to read, order new labels from the authorised
servicing dealer and replace the damaged labels. When applying new labels, rst wipe away any
dirt and dry the surface before applying the new label in the same place as the original label.
Explanation of Symbols on the Machine
For safe operation and maintenance, symbols are carved in relief on the machine:•
FUEL TANK
Fuel tank
Position: Fuel cap
CHOKE OPERATION
Starting mode when the engine is hot (choke o ).
Position: Air cleaner cover.
Starting mode when the engine is cold (choke on).
Position: Air cleaner cover.

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Safety Precautions
Introduction
Read this Owner/Operator Manual carefully. Be sure you understand how to operate this Brushcutter
properly before you use it. Failure to do so could result in serious injury.
Keep this manual handy so that you may refer to it later whenever any questions arise. Also note that you are
able to contact the dealer from whom you purchased the product for assistance.
Always include this manual when selling, lending, or otherwise transferring the ownership of this product.
This product has been designed to be used as a Brushcutter power tool as described previously and it should
never be used for any other purpose; doing so could result in unforeseen accidents and injuries occurring.
Only approved Mitox accessories should be used with this product.
This Brushcutter is equipped with extremely sharp blades, always wear sturdy gloves when handling the
blades and t the safety guards when not in use.
When using this Brushcutter for the rst time, take the Brushcutter to a wide, clear, open space, start the
engine, and practice handling the Brushcutter until you are sure that you will be able to handle it properly in
actual operation.
You should never use this Brushcutter when under the inuence of alcohol, suering from exhaustion or
lack of sleep, suering from drowsiness as a result of having taken medicine, or at any other time when your
judgement might be impaired or that you might not be able to operate the Brushcutter properly and in a
safe manner.
Never allow children or anyone unable to fully understand the directions given in this manual to use this
Brushcutter.
When planning your work schedule, allow plenty of time to perform the work and allow plenty of time for
rest. Limit the amount of time you continuously use the Brushcutter to 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 to 2 hours.
Never run the engine indoors as the exhaust gases contain harmful carbon monoxide.

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Original Instructions Version December 12
Never use the Brushcutter in conditions as described below:
When the ground is slippery or when other conditions exist which might make it dicult to maintain a
steady posture while using the Brushcutter.
At night, at times of heavy fog, or at any other times when your eld of vision is limited and it would be
dicult to gain a clear view of the area where the Brushcutter is to be used. In heavy rain, 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 this product.
Lack of sleep, tiredness, or physical exhaustion results in lower attention spans, and this in turn can lead to
accidents and injury.
Work Clothing and Safety Equipment
When using the product, you should wear proper clothing and protective equipment.
• Helmet
• Protection goggles or face protector
• Ear protectors
• Thick work gloves
• Non-slip sole work boots
• When using your Brushcutter, always wear strong, durable, work clothing; shirts should be long-
sleeved and trousers should be full-length.
Safety and Operation
This Brushcutter is equipped with a very sharp blade, and when used incorrectly the blades can be extremely
dangerous.
Improper handling can cause accidents which may in turn lead to serious injury or death. For this reason,
you should always be careful to adhere to the following instructions when using your Brushcutter.

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Original Instructions Version December 12
Never hold the Brushcutter in a way in which the cutting head is pointing towards someone else.
Never allow the blades to come into contact with your body.
Always turn o the engine before adjusting the Brushcutter, or at any time when coming into close proximity
with the cutting head.
Always wear thick work gloves when adjusting the Brushcutter.
Safe Handling of Fuel
The engine of the Brushcutter is designed to run on unleaded petrol.
This fuel is highly ammable, never store cans of fuel or rell the fuel tank in any place where there is a source
of heat or re, which might ignite the fuel.
Do not smoke whilst operating the Brushcutter or relling, keep lit cigarettes away from the Brushcutter at all
times.
When relling the fuel tank always stop the engine rst and carefully make sure that there are no sparks or
naked ames anywhere nearby before refuelling.
If any fuel spillage occurs during refuelling, use a dry rag to wipe any fuel which has been spilled onto the
Brushcutter before starting the engine.
After refuelling, screw the fuel cap back tightly onto the fuel tank and carry the brushcutter to a spot 5
metres or more away from where it was refuelled before starting the engine.

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Original Instructions Version December 12
Before Operating the Brushcutter
Before beginning work, carefully check the work area and remove any obstacles. Within a perimeter of 15
metres of the work area should be considered a hazardous area into which no-one should enter while the
Brushcutter is being used, and when necessary this area should be marked with a warning rope, warning
signs, or other forms of warning.
When work is to be performed simultaneously by two or more operators, care should also be taken to
constantly look around to check the presence and locations of other operators within the work area to
maintain a safe distance between each operator.
Before beginning work, each component of the Brushcutter should be checked to make sure that it is in
proper working order, make sure that there are no loose screws or bolts, fuel leaks, ruptures, dents, broken
guards or any other problems which might interfere with safe operation.
Keep all parts of your body away from the cutting head when the engine is running.
Before Starting the Engine
Carefully check the work area to make sure that no obstacles exist within a perimeter of 15 metres around
the Brushcutter before starting the engine.
To start the engine, place the Brushcutter onto the ground in a at clear area and hold it rmly in place to
ensure that neither the cutting head nor the throttle come into contact with any obstacles when the engine
starts.
After starting the engine, make sure that the cutting head stops moving when the throttle trigger is
released (idle). If the cutting head continues to move when the engine is at idle, adjust the idle screw on the
carburettor to a point where the cutting head stops moving, if this cannot be achieved, take the Brushcutter
to your authorised service dealer for adjustment.

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Original Instructions Version December 12
Avoid Noise Problems
Check and follow the local regulations for sound levels and hours of operation for garden machinery.
In general, operate Brushcutters between 8 am and 5 pm on weekdays and 9 am to 5 pm at weekends.
Avoid using the Brushcutter late at night and/or early in the morning.
Safety when using the Brushcutter
When using the Brushcutter, grip the handles rmly with both hands, place your feet slightly apart so your
weight is distributed evenly across both legs, and always maintain a steady even posture while working.
Do not use on ladders or if the ground surface is slippery or uneven. Never attempt to cut directly overhead
or with one hand.
• Maintain full engine speed when cutting.
• Never allow other persons to come within the work area as doing so might expose them to
danger.
• Keep work area clear of all persons, particularly small children and pets. Injury may result from
ying debris.
• If grass or other objects get caught in the Brushcutter during operation, always stop the engine
before removing the object.
• Never touch the spark plug or plug HT cable while the engine is in operation,
doing so may result in an electrical shock.
• Never touch the exhaust, spark plug, or any metallic parts while the engine is
in operation or immediately after shutting down the engine. These parts
reach high temperatures during operation and doing so could result in
serious burns.
• When you nish cutting in one location and wish to continue work in another area, stop the
engine.
• Always remove fuel from the fuel tank before transportation to prevent fuel spillage.
• Never leave the Brushcutter exposed to direct sunlight as this can heat the fuel tank and may
cause a discharge of fuel, and ood the engine.
• Be careful not to hit the nylon cutting head against stones or the ground.

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Original Instructions Version December 12
Assembly of the Brushcutter
The blade tted to the guard is sharp and can cause injury, always wear gloves.
Installing the Guard
• Lay the brushcutter on its back with the gearbox shaft facing up.
• Line up the 4 screw holes in the guard with the bracket on the shaft.
• Insert 4 screws through the guard into the captive nuts in the bracket and tighten.

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Original Instructions Version December 12
Installing the Loop Handle Assembly (L model)
• Fix the loop-handle to the shaft over the rubber block provided. Adjust to a comfortable
working position then tighten the xing screws securely.
Upper Handle
Rubber Block
Fixing Screws
Drive Shaft
Lower Handle
To Cutter Head

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Original Instructions Version December 12
Installing the U Handle Assembly (U model)
• Remove the Upper Bracket from the assembly by undoing the Lockscrew.
• Install the handle assembly, Upper Bracket to the assembly and secure using the Lockscrew.
• Ensure that the controls are located on the right and adjust the handle for maximum comfort
before securing.
Lockscrew
Upper Bracket
To Left handle
To Right handle
Lower Bracket
Spring Drive Shaft
To Gear Case

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Original Instructions Version December 12
Installing the Nylon Head
• Lay the brushcutter on its back with the gearbox shaft facing up.
Rotate the gear box shaft until the hole in
the holder A lines up with the slot in the
plastic guard.
Insert the Allen key into the hole in the
plastic guard and into the holder A.
Screw the nylon head anti-clockwise (turn
left) onto the threaded shaft on the end of
the gearbox.
Make sure that the nylon head is securely
locked in position and remove the Allen key.
A A

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Original Instructions Version December 12
Installing the 3 Tooth Blade
• Lay the brushcutter on its back with the gearbox shaft facing up.
THE BLADE MUST BE CORRECTLY POSITIONED ON THE UPPER BLADE CLAMP
OTHERWISE SERIOUS DAMAGE AND INJURY TO PERSONS AND PROPERTY COULD RESULT.
Rotate the gear
box shaft until
the hole in the
holder A lines
up with the slot
in the plastic
guard.
Insert the Allen
key into the
hole in the gear-
box cover and
into holder A.
Place the 3 tooth
blade on the holder
A, centring the
blade on the raised
centre.
Fit the holder
B and then the
washer.
Screw the nut
anti-clockwise (turn
left) and tighten
using the spanner
provided. Fit split
pin. Remove the
Allen key.
A
B

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Original Instructions Version December 12
Replacing the Nylon Cord
Check to see if the nylon head is damaged before replacing the cord. If you can see serious traces of wear or
damage, you must replace the complete nylon head.
1. Stop the engine
2. Open the nylon head by pushing on the catch, (a), and twisting the cover anti-clock wise.
3. Pull the bobbin out of the nylon head and take out the rest of the nylon cords.
4. Cut the cord, 2.4mm Ø and 5 meters long into two equal lengths.
5. Make a loop folded at one end of each of the two nylon cords and insert these into the two holes
provided on the bobbin, (b). Wind the lines clockwise maintaining an even and rm tension onto the
bobbin, being careful not to twist the line.
6. After winding the cord, insert both ends into the notches on the bobbin, (c).
7. Introduce each end of the cords into the holes provided (d). The cords should stick out appx 15 cm
either side.
8. Pull the cords to free them from the notches and ret the spool cover.
Never use a cutting device other than those supplied by the manufacturer. (Steel cord is never allowed)
Always use original spare parts in order to benet from continuous warranty.
(a)
(b)
(c)
(d)

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Original Instructions Version December 12
Fuelling
Fuel is very ammable. Do not smoke or bring any ame or sparks near fuel.
Always stop the engine and allow it to cool before refuelling.
Refuel outdoors on bare ground, restart engine at least 5m away from the refuelling area.
Use fresh, unleaded petrol (95 RON).
Fuel Storage
Fuel which has been left unused for a period of one month or more may damage the carburettor and result
in the engine failing to start or operate correctly.
When storing the brushcutter for a period of more than one month, empty the fuel tank, and run the engine
to empty the carburettor of fuel.
Stale fuel can cause deterioration of rubber and/or plastic components during prolonged storage.
It is important to only use good quality, fresh fuel.
Fuelling
Clean dirt from around the fuel cap before removing.
Pour fuel into the fuel tank with a ltered funnel, up to 80% of the fuel tank’s capacity.
Replace the fuel cap and tighten securely. Spilled fuel must be wiped away from the machine before starting
the engine.
Move at least 5m away from the refuelling area before restarting the engine.
When relling the tank, always turn o the engine and allow it to cool down. Take a careful look around
to make sure that there are no sparks or open ames anywhere nearby before refuelling.

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Original Instructions Version December 12
Engine Oil
This is a 4-stroke engine and is shipped without oil; ll with oil before starting the engine for the
rst time. Failure to ll with oil will cause engine damage and will not be covered by warranty.
Recommended oil
Use 4 stroke oil that meets or exceeds API SG/CF specication.
SAE 10W 30 is recommended for general use.
Preparation
1. Place the engine with the fuel tank side downward and horizontally on a level surface.
2. Remove the oil ller cap.
3. Fill with the oil, insert and remove the oil ller cap/dipstick without screwing it into the oil ller neck,
remove it and check the oil level on the dipstick, ensure the oil is up to the full mark on the dipstick.
4. Ret the oil ller cap securely.
Before Operation - Checking the oil
Always check the oil before use or after every 5 hours if operating continuously.
1. Place the engine with the fuel tank side downward and horizontally on a level surface.
2. Remove the oil ller cap.
3. Insert and remove the oil ller cap/dipstick without screwing it into the oil ller neck, remove it and check
the oil level on the dipstick, ensure the oil is up to the full mark on the dipstick.
4. Ret the oil ller cap securely.

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Original Instructions Version December 12
Operation - L models
Keep clear of the cutting head as it may start moving when engine starts.
Starting the Engine
CAUTION do not pull the starter cord all the way out and do not let go of the starter handle when the cord is
extended, this can damage the starter mechanism.
Cold Engine Starting - L models (see page 21 for U models)
Rest the unit on a at, rm surface. Keep the cutting head o the ground and clear of surrounding objects as
it may start moving when starting the engine.
Fig 1 - Push the air purge bulb (a) until fuel Fig 2 - Move the choke lever (c) to the closed
is visible in the clear return fuel line (b). position.
(a)
(b)
(c)
Set the ignition switch (d) to the START
(I) position.
START
STOP
(d)
Hold the safety lever (e) down and squeeze
the throttle control lever (f ), push down
the fast idle control (g). Release the throttle
control lever rst and then release your hand.
(e)
(f )
(g)

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Original Instructions Version December 12
• Slowly pull the recoil starter handle until engagement of the pawls with the ywheel is felt.
• While holding the unit, pull out the starter rope rmly until engine res (indicated by a ‘cough’
from the engine).
• Move the choke lever to the open position.
• Pull the starter rope until the engine starts.
• Pull and realease the throttle control lever to return the engine to idle.
• Allow the engine to warm up before use. When cutting, always use the machine on full throttle.
Hot Engine Starting
Set the ignition switch (d) to the start position “I”.
Pull the starter rope until the engine starts.
If the engine does not start after 5 pulls, use the cold start procedure.
Overchoking
Should the engine become ooded due to overchoking, turn the ignition switch o, unscrew the spark plug,
wipe it dry or replace.
Stopping the Engine
Set the engine to idling by releasing the throttle lever.
Set the ignition switch to the o position ‘’O’’ (STOP).
If the engine fails to stop, set the choke lever to the closed position to stall the engine; do not use the
machine until the ignition switch is repaired.
NOTE