5 in 1 multi tool
5 IN 1
Model FM5-1
IMPORTANT: Read this manual fully before assembly
and use and observe all safety rules and operating
Technical Specification
Know Your Multi Tool
Warning Labels On The machine
Technical Specification
Engine type
2 stroke, vertical single cylinder
Bore x Stroke
Engine Speed at idle
Engine Speed at max
Compression ratio
44 x 34.6mm
3000 r.p.m.
7800 r.p.m.
Fuel/oil Ratio (synthetic/mineral)
Fuel tank capacity
40:1 / 25:1
CDI system
Spark plug
Starting method
Recoil (manual)
Cooling system
Forced air
Sound pressure level (LPA)
102dB(A) K=3dB(A)
Sound Power level (LWA)
111dB(A) K=3dB(A)
1.2 litre
Multi Tool FM5-1
Vibration level max (idling) -
Vibration level max (running) Dry weight (approx.)
9.66m/s2 (K=1.5m/s2)
Brush cutter & edge trimmer
Cutting device
3 tooth metal blade
Cutting device
3 tooth blade dimensions
Nylon thread dimensions
Cutting diameter
Blade rotation direction
Nylon thread spool
255 x 1.6 mm
2 threads, 2.5 x 2.4 mm
255mm to 410mm
Counterclockwise (from operator’s view)
Metal blade: 7100 min-1 / Nylon
thread: 6600 min-1
6.9kg approx / 6.2kg approx.
Cutting device max rotation
speed at max engine speed
Dry weight with attachment
Technical Specification
Pole pruner and Hedge trimmer
Chain and Guide bar
12” (300mm)
Blade holder
Cutting length
Blade spacing 19mm
Chain (No. teeth)
Chain no load speed
255 x 1.6 mm
44; Gauge 0.05”; Pitch 3/8”
15 m/s
Max branch cutting diameter
Trimmer 5mm / Pruner 50 mm
Oil tank
0.15 litre
Working angle range
90 to 270 degrees
Dry weight with attachment
8.4kg approx. / 8.9kg approx.
Multi Tool FM5-1
Know Your Multi Tool
Air filter cover
Choke lever
Primer bulb
Fuel tank
Pull start
Throttle cable
Throttle trigger
Split shaft connector
Loop handle
Main shaft tube
Harness suspension
On/Off switch
Throttle control
Multi Tool FM5-1
Three point blade
Brush cutter gear case
Nylon trimmer
Attachment guard
Working shaft tube
Know Your Multi Tool
Hedge trimmer
Hedge trimmer gear
Pruner chain
Oil tank
Pruner gear case
Chain cover
Pruner guide bar
Locking sleeve
Multi Tool FM5-1
Warning Labels On The Machine
Wear appropriate clothing (to protect your body and limbs)
Beware of overhead branches being cut, as they may fall on you.
Beware of overhead power lines. Keep away. Never touch power
supply or telephone lines. These lines conduct high voltage
and there is a severe danger of electric shock. Keep a minimum
distance of 10 m.
Keep persons (esp. children) and animals away from product and
working area. Other persons and animals should remain at a safe
distance of 15 meters or more when the machine is being used.
The operator is solely responsible for third persons in the working
area. Stop tool as soon as some one enters the working area.
Caution! Danger of injury from flying parts! Warning! Flying object
hazard (e.g. stones etc). Keep persons (esp. children) and animals
away from product and working area.
Keep all body parts (esp hands and feet) away from the cutting
device (blade / nylon line / chain). Injury hazard: sharp blades /
Never touch or grab the blades / nylon line / chain either when
product is at rest or during operation.
It is recommended to wear protective gloves for working on blades
/ chain.
Warning! Kickback. An uncontrolled kickback of the blade may
occur when using the brush cutter, especially when the spinning
blade meets or hits a hard or solid object in the critical zone (i.e.
the angle of the blade between 12 and 2 o’clock). Risk of serious
injury or death.
Do not touch hot parts. After intensive use of the hedge cutter
parts can get hot.
Multi Tool FM5-1
Warning Labels On The Machine
Read owner’s manual before operating this machine.
Wear head, eye and ear protection.
Wear foot protection.
Wear gloves.
Beware of thrown objects.
15 M - 50 ft
Keep all children, bystanders and helpers 15
metres away from the machine.
Note: If any warning labels come off or become soiled and
impossible to read, you should contact us at Forest Master to order
new labels. You can then affix them in the required location(s).
Multi Tool FM5-1
Symbols On The Machine
The port to refuel the “MIXED PETROL”
Position : FUEL TANK CAP
The direction to open and close the choke.
Move lever to On to close the choke and to
Off to open.
Turn this rod by screwdriver, follow the arrow
to the “MAX” position, the chain oil will flow out
more, and if you turn to the “MIN” position, it will
flow out less.
Position : Bottom of the TRANSMISSION
Multi Tool FM5-1
Keep this manual handy so that you may refer to it later whenever any
questions arise. Also note, if you have any questions which are not
answered, contact by email: [email protected]
Always be sure to include this manual when selling, lending, or otherwise
transferring the ownership of this product.
Read this manual carefully until you completely understand. Follow all
safety and operating instructions.
Never allow children or anyone unable to fully understand the directions
given in the manual to use the machine.
Working Conditions
When using the product, you should wear proper clothing and protective
(1) Helmet
(2) Ear protectors
(3) Protection goggles or face shield
(4) Thick work gloves
(5) Non-slip work boots
And you should carry with you:
(1) Attached tools
(2) Properly reserved fuel
(3) Spare blade
(4) Things to mark out your working area (rope, warning signs)
(5) Whistle (incase of emergency)
(6) Hatchet or saw (for removal of obstacles)
Do not wear loose clothing, jewellery, 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.
Multi Tool FM5-1
Working Restrictions
Never start the engine inside a sealed room or building. Exhaust gases
contain dangerous carbon monoxide, and can kill.
Never use the product:
a. when the ground is slippery or when you can’t maintain a steady
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
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.
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: If you don’t observe the guidance on working time, or
working manner, Repetitive Stress Injury (RSI) could occur. If you
feel discomfort, redness and swelling of your fingers or any other
part of your body, consult a doctor.
Note: Check and follow the local regulations as to sound level and
hours of operations for the product. In general, to avoid noise
complaints, operate this product between 8 a.m. and 5 p.m. on
weekdays and 9 a.m. to 5 p.m. on weekends.
Multi Tool FM5-1
Before Starting The Engine
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 workers so as to maintain a distance
between each person sufficient to ensure safety.
The area within a perimeter of 15 m of the person using the product should
be considered a hazardous area into which no one should enter. If necessary,
yellow warning rope or warning signs should be placed around the perimeter
of the area.
Check the condition of working area to avoid hitting hidden obstacles such
as stumps, stones, cans, or broken glass.
Starting The Engine
Keep bystanders and animals at least 15 m away from the operating point.
If you are approached, immediately stop the engine.
The product is equipped with a centrifugal clutch mechanism, so the cutting
attachment 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 cutting part nor the throttle come into contact with any
obstacle when the engine starts.
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
Important: Remove any obstacles before beginning work.
Important: Never place the throttle into the high-speed position
when starting the engine.
Multi Tool FM5-1
Using The Product
Cut only materials recommended by the manufacturer. And use only for
tasks explained in the manual.
Grip the handles firmly with both hands. 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.
Keep cutting attachment below waist level.
Maintain the speed of the engine at the level required to perform cutting
work, and never raise the speed of the engine above the level necessary.
If the unit starts to shake or vibrate, turn off the engine and check the whole
unit. Do not use it until the fault has been properly corrected.
Keep all parts of your body away from rotating cutting attachments and hot
Never touch the exhaust, 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.
In the event that any part must be replaced or any maintenance or repair
work not described in this manual must be performed, please contact us at
Forest Master.
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 or
becoming unable to operate properly.
Warning: The engine reaches high temperatures while running
and remains hot for some time after it has stopped.
Multi Tool FM5-1
The engine is designed to run on a mixed fuel, which contains highly
flammable petrol.
Never smoke while operating the unit or refilling its fuel tank.
When refilling the tank, always turn off the engine and allow it to cool down.
Never store cans of fuel or refill the fuel 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.
Ensure that there are no sparks or open flames anywhere nearby before
Wipe spilled fuel up completely using a dry rag if any fuel spillage occurs
during refuelling.
After refuelling, screw the fuel cap back tightly onto the fuel tank and then
carry the unit to a spot 3 m or more away from where it was refuelled before
starting the engine.
Never operate the pruner at an angle greater than 60° in
order to reduce the risk of being struck by falling objects
during operation.
Approaching or contacting electric power lines with pruning
saw may cause serious injury or death from electrocution.
Electricity can jump from one point to another by means
of arcing or may be conducted through damp branches.
Maintain a clearance of at least 10m between Pole saw and
any electrical line carrying live current.
Multi Tool FM5-1
If Someone Comes
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.
If someone calls out or otherwise interrupts you while working, always be
sure to turn off the engine before turning around.
Brush Cutter Kickback
Attention Rebound
An uncontrolled kickback of the blade may occur when
using the brush cutter.
This kickback phenomenon occurs in particular when performing cuts in the
critical angle of the blade, i.e. the angle between 12 and 2 o’clock.
Never use the trimmer with the blade angle between 12 and 2 o’clock.
Never use such a blade angle for cutting solid materials such as bushes,
roots etc whose diameter is greater than 3cm. The trimmer could be violently
projected to the side and may cause injury.
This uncontrolled kickback of the blade is more likely to occur when the
user cannot see the material being cut.
This uncontrolled kickback can cause serious injury or even death, to the
user or other people or animals. Always keep people and animals at least
15m away from the machine.
Warning: Never use the trimmer with the blade angle between 12
and 2 o’clock.
Multi Tool FM5-1
Chainsaw Kickback
Tip contact in some cases may cause a lightning fast reverse
reaction, kicking the guide bar up and back towards the operator.
Pinching the saw chain along the top of the guide bar may push the
guide bar rapidly back towards the operator.
Kickback may occur when the nose or tip of the guide bar touches
an object, or when the wood closes in and pinches the saw chain in
the cut.
Either of these reactions may cause you to Iose control of the saw,
which could result in serious personal injury.
Do not rely exclusively on the safety devices built into your saw. As
a chain saw user you should take several steps to keep cutting jobs
free from accident or injury, such as:
Steady, methodical work
Proper revision of this manual
Good diligence
A clear visual of your work area
With a basic understanding of kickback you can reduce or eliminate
the element of surprise. Sudden surprise contributes to accidents.
Keep a good grip on the saw with both hands, the right hand on the
rear handle, and the left hand on the front handle, when the engine
is running. Use a firm grip with thumbs and fingers encircling the
chain saw handles. A firm grip will help you reduce kickback and
maintain control of the saw.
Make certain that the area in which you are cutting is free from
obstructions. Do not let the nose of the guide bar contact a log,
branch, or any other obstruction which could be hit while you are
operating the saw.
Cut at high engine speeds.
Do not overreach or cut above shoulder height.
Follow the manufacturer’s sharpening and maintenance
instructions for the saw chain. Only use replacement bars and
chains specified by us at Forest Master.
Multi Tool FM5-1
Make sure the chain and sprocket are correctly adjusted before operating
the pruner. Never attempt chain adjustment with the engine running!
Always make sure the cutting attachment is properly installed and firmly
tightened before operation.
Never use a cracked or warped guide bar: replace it with a serviceable one
and make sure it fits properly.
If a saw blade should bind fast in a cut, shut off the engine immediately.
Push the branch or tree to ease the bind and free the blade.
Do not operate the pole pruner with the exhaust removed.
When cutting a limb that is under tension, be alert for springback so that
you will not be struck by the moving limb.
Always stop the engine immediately and check for damage if you strike
a foreign object or if the machine becomes tangled. Do not operate with
broken or damaged equipment.
Important: Do not make unauthorised
substitutions to the guide bar or chain.
Never allow the engine to run at high RPM without a load. Doing so
could damage the engine.
Keep the pruner as clean as possible.
Multi Tool FM5-1
The vibration during use of the power tool can differ depending on the ways
in which the tool is used. There is the need to identify safety measures to
protect the operator that are based on an estimation of exposure in the
actual conditions of use (taking account of all parts of the operating cycle
such as the times when the tool is switched off and when it is running idle
in addition to the trigger time).
Prolonged used of a tool (or other machines) may expose the operator to
vibrations that may product white finger disease (Raynaud’s syndrome) or
carpal tunnel syndrome.
These conditions reduce the hand’s ability to feel and regulate temperature,
produce numbness and may cause nerve and circulation damage and tissue
To help in the prevention and reducing the risk of the white finger disease,
please note the following:
wear gloves and keep your hands warm;
maintain a firm grip at all times, but do not squeeze the handles with
constant pressure,
take frequent pauses
Even when the tool is used as prescribed it is not possible to eliminate all
residual risk factors. The following hazards may arise in connection with the
tool’s construction and design:
a. Damage to lungs if an effective dust mask is not worn.
b. Damage to hearing if effective hearing protection is not worn.
c. Health defects resulting from vibration if the tool is being used
over longer period of time or not adequately managed and properly
Wear hearing protection while operating the tool.
Always Wear The Provided Harness When Using The Machine
Always make sure the machine is hooked securely to the harness. If you
don’t, you will be unable to control the machine safely. This can result in
injury to yourself or others. Never use a harness with a defective quick
release or any other damage.
Multi Tool FM5-1
Note: careful daily inspection should be performed before use and after a
drop or shock to identify major defects. Do not use the machine until the
defects have been repaired.
Restrict working hours to a minimum and always take rest periods. For
proper use, after each work period take a rest period (for example take a
rest for 10 minutes after a work period of 30 minutes).
When you finish cutting in one location and wish to continue work in another
spot, turn off the engine, lift up the unit and carry it paying attention to the
blade. Never forget to place the protective cover over the blades.
When hand-carrying the product, cover over the cutting part if necessary, lift
up the product and carry it paying attention to the blade.
In order to maintain your product in proper working order, perform the
maintenance and checking operations described in the manual at regular
Always be sure to turn off the engine and disconnect the spark plug wire
before performing any maintenance or checking procedures.
Stop engine.
When hand-carrying the product, always cover the cutting device. Lift up the
product and carry it paying attention to the cutting device.
Never transport the product by vehicle without removing all fuel from the
fuel tank, to prevent fuel leaking from the tank during transport.
Caution: After stopping the engine, the metal parts (e.g. exhaust) will remain
hot. Never touch the hot parts. Allow them to cool down before handling
the machine.
When transporting in a vehicle, be sure to firmly secure the product with no
part extending outside the vehicle.
Multi Tool FM5-1
cable to
the end
of the
Full on
M3 screw
Idling adjust screw
Connecting Throttle Wire
Connect throttle wire with carburettor. Insert the cable to the end of adjuster
fix the throttle cable by tightening the M3 screw. (Tightening torque: 0.4 ~
0.8 N.m.)
Make sure the ‘STOPPER-PLATE’ of carburettor moves to contact with ‘IDLING
ADJUST SCREW’ and the ‘SWINGARM’ of carburettor moves to contact with
‘FULL ON STOPPER’ by gripping throttle lever.
Connecting Switch Wires
Connect the switch wires between the engine and the main unit. Pair wires
of the same colour
Installation Of The Handle
1. Set the upper part and lower part of
the handle at the right position.
2. Tighten the loop handle with the
screw and nut.
3. Insert the nuts (4) into the
countersunk holes in the lower
handle and secure the top part of
the handle with the bolts supplied
Multi Tool FM5-1
Loop handle
The recommended position of the handle and suspension point is marked
above. However you may adjust the position to make sure it is comfortable
for you.
Brush Cutter and Edge Trimmer
Installing The Cutting Attachment
Put the cutting attachment guard on
the gearbox, attach it with the nuts
and bolts provided.
Multi Tool FM5-1
Installing The Metal Blade
Collar ring
Metal Blade
1. Insert the key wrench into the
gear case locking hole.
2. Screw the collar ring onto the
shaft thread.
3. Secure metal blade between collar
ring and washer.
4. Place the washer on the shaft.
5. Screw the nut onto the shaft
Collar ring
Nylon Spool
Multi Tool FM5-1
Installing The Nylon Line (Nylon
Cutter Head)
1. Insert the key wrench into the gear
case locking hole.
2. Screw the collar ring on the shaft
3. Screw the nylon spool on the shaft
4. Check the spool is secured tightly.
Screw hole
Gear case
Attaching The Trimming Mechanism
1. Remove the plastic cap on the end of the tube.
2. Remove the screw.
3. Insert the end of the tube into the gear case, and make sure to align
the transmission shaft of the tube with the transmission shaft of the
gear case.
4. Line up the hole on the tube with the hole on the gear case and insert
the screw through the hole and tighten firmly.
Attaching The Pruning Mechanism
Locking sleeve
Gear case
Bolt hole
1. Remove the plastic cap on the
end of the tube.
2. Remove the bolt.
3. Insert the end of the tube
through the locking sleeve
and into the gear case, make
sure to align the transmission
shaft of the tube with the
transmission shaft of the gear
4. Line up the hole on the tube
with the hole on the gear case
and insert the bolt through the
hole and tighten firmly.
5. Using a wrench, screw in the
fastening bolt provided to fix
Multi Tool FM5-1
Installing Guide Bar And Saw Chain
Saw chain
Guide bar
Chain tension adjusting
Chain tensioner nut
Chain cover
1. Loosen the nut and remove the chain
2. Mount the guide bar, then fit the saw
chain around the bar and sprocket.
3. Fit the chain tensioner nut into the lower
hole of the guide bar, then install the
chain cover, and fasten the mounting nut
to finger tightness.
4. Adjust the chain tension by turning the
tensioner screw until the tie straps just
touch the bottom side of the bar rail.
5. Tighten the mounting nut securely with
the bar tip held up (TORQUE: 8.9 ~ 11.7
N.m./90 ~ 120 kg-cm). Then check the
chain for smooth rotation and correct
tension while moving it by hand. If
necessary, readjust.
Multi Tool FM5-1
It is very important to maintain the proper
chain tension. Rapid wear of the guide bar
or the chain coming off easily can be caused
by improper tension.
Always wear the harness and make sure the machine is hooked securely to
the harness. If you don’t, you will be unable to control the machine safely.
This can result in injury to yourself or others. Never use a harness with a
defective quick release or any other damage.
The harness is equipped with a “QUICK RELEASE”device. To release the
machine from the harness in emergency situations, please follow the
procedure as explained below.
1. Wear the provided harness without twisted
bands, and with the hanger on your right
2. Hook your machine to the hanger.
Depending on the working posture, insert
hook up or down the suspension point until
the unit balances and the strap fits your
3. Adjust the bands of the harness to have
the blade parallel to the ground, when
standing in your normal working position,
this provides you the most effective and
comfortable position with operating this
4. In order to prevent the hanger position
changing during operation, turn up the
extra part of the band from the buckle.
5. When correctly adjusted, check the correct
working of the harnesses’ QUICK RELEASE.
6. To test the QUICK RELEASE, make sure
to hold the unit securely when using the
QUICK RELEASE. While holding the unit by
your right hand securely, press both sides
of the buckle.
Important: Make sure to check proper working of the QUICK
RELEASE device BEFORE operating the machine.
Multi Tool FM5-1
Petrol is highly flammable. Avoid smoking or bringing any flame
or sparks near fuel. Make sure to stop the engine and allow it
cool before refuelling the unit. Select outdoor bare ground for
fuelling and move at least 3 m (10 ft) away from the fuelling
point before starting the engine.
The engine is specially designed for air-cooled two stroke mixed fuel use.
Use only 2-stroke oil that is suitable for air cooled engines. Do not use BIA or
TCW (2-stroke water-cooled marine type) 2-stroke oil.
Filling With Oil And Fuel
How To Mix Fuel
Recommended mixing ratios;
Petrol 40 / Synthetic Oil 1
Petrol 25 / Mineral Oil 1
Measure out the required quantities of petrol and oil to be mixed.
Put some of the petrol into a clean, approved fuel container.
Pour in all of the oil and agitate well.
Pour in the rest of petrol and agitate again for at least one minute.
As some oils may be difficult to agitate depending on oil ingredients,
sufficient agitation is necessary for engine protection. If the agitation is
insufficient, there is an increased danger of early piston seizing due to
abnormally lean mixture.
5. Put a clear indication on the outside of the container to avoid mixing up
with petrol or other containers.
6. Indicate the contents on outside of container for easy identification.
Fuelling The Unit
1. Untwist and remove the fuel cap. Rest the cap on a dustless place.
2. Put 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
Warning: Select bare ground for refuelling.
Move at least 10 ft (3 metres) away from the fuelling point before
starting the engine.
Stop the engine before refuelling. At that time, be sure to
sufficiently agitate the mixed fuel in the container.
Multi Tool FM5-1
For Your Engine Life:
1. DO NOT FUEL WITH NO OIL (RAW PETROL) – It will cause severe damage
to the internal engine parts very quickly.
2. DO NOT USE GASOHOL – It can cause deterioration of rubber and/or
plastic parts and disruption of engine lubrication.
3. DO NOT USE OIL FOR 4-STROKE ENGINE USE – It can cause spark plug
fouling, exhaust port blocking, or piston ring sticking.
4. DO NOT USE Mixed fuels which have been left unused for a period of one
month or more. These may clog the carburettor and result in the engine
failing to operate properly.
5. In the case of storing the product for a long period of time, clean the
fuel tank after rendering it empty. Next, empty the carburettor of the
composite fuel.
6. In the case of scrapping the used mixed oil container, scrap it only at an
authorized repository site.
1. Rest the unit on a flat, firm place. Keep the cutting
head off the ground and clear of surrounding objects,
as it will start rotating upon starting of the engine.
2. Push the primer bulb several times until fuel flows
out in the clear tube.
3. Move the choke lever to the “On” position.
4. Set the stop switch to the “-” position.
selector 5. While holding the unit firmly, pull the pull start
quickly until the engine fires.
Stop switch
Avoid pulling the rope to its end or returning it by
releasing the knob, as this may damage the pull start.
Multi Tool FM5-1
1. Release the throttle lever and run the engine for half a minute.
2. Move the stop switch to the STOP position “O”.
3. Except for an emergency, avoid stopping the engine while pulling the
throttle lever.
4. If engine doesn’t stop at the stop switch, move the choke lever to the On
6. Move the choke lever downward to Off position.
7. Allow the engine to warm up for a several minutes before starting
When restarting the engine immediately after stopping it,leave the choke
Overchoking can make the engine hard to start due to excess fuel. If the
engine fails to start after several attempts, open the choke and repeat pulling
the rope, or remove the spark plug and dry it.
Adjusting The Throttle Cable
The normal play is 1 or 2 mm when measured at
the carburettor side end. Readjust with the cable
adjuster as required.
Adjusting Idle Speed
Warm up the engine before adjusting the idling
1. If the engine stops frequently at idling mode,
turn the adjusting screw clockwise.
2. When the cutting head keeps rotating after
releasing the trigger, turn the adjusting screw
Warning: The product is equipped with a centrifugal clutch
mechanism, so the cutting attachment 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 cutting part nor the throttle come into contact with any
obstacle when the engine starts.
Multi Tool FM5-1
Operation Of The Brush Cutter And Trimmer
Choose the blade or choose a suitable recommended cutting attachment,
according to the object to be cut.
Working With The Edge Trimmer (With The Nylon Line)
1. Always wear eye protection such as safety goggles. Never lean over the
rotating cutting head. Rocks or other debris could be thrown into eyes and
face and cause serious personal injury.
2. Keep the cutting attachment guard in place at all times while the unit is
Trimming Grass And Weeds
1. Hold the unit so the head is off the ground and is tilted
about 20 degrees toward the sweep direction.
2. You can avoid thrown debris by sweeping from your
left to the right.
3. Use a slow, deliberate action to cut heavy growth. The
rate of cutting motion will depend on the material being
cut. Heavy growth will require slower action than with
light growth.
4. Never swing the unit hard as you are in danger of losing
your balance or control of the unit. Try to control the
cutting motion with the hip rather than placing the full
work load on the arm and hands.
Multi Tool FM5-1
Adjusting The Line Length
Your brush cutter is equipped with a semi-auto type nylon line head, that
allows the operator to advance the line without stopping the engine. When
the line becomes short, lightly tap the head on the ground while running
the engine at full throttle.
5. Take precautions to avoid wire, grass and dead, dry, long stem weeds
from wrapping around the head shaft. Such materials can stall the head
and cause the clutch to slip, resulting in damage to the clutch system
if repeated frequently.
Each time the head is bumped, the line advances about 1 inch (25.4 mm).
For better effect, tap the head on bare ground or hard soil.
Working With The Brush Cutter (With The Metal Blade)
1. Use the front left side cutting.
2. Guide the blade from your right to left with it tilted slightly
to your left.
3. When mowing a wide area, start working from your left end to
avoid interference of cut grass.
4. The blade may be seized by weeds if the engine speed is too
low, or the blade cuts too deep into weeds. Adjust the engine
speed and cutting depth according to the condition of object.
5. If grass or other objects are caught in the blade, or if the unit
starts to shake or vibrate, turn off the engine and check the
whole unit. Change the blade if it has been damaged. Turn off
the engine and make sure the blade has completely stopped
before checking the blade, and removing any objects that are
Important: Make sure to use the harness and cutting attachment
Multi Tool FM5-1
Securing Bolt Safety Check
1. Before each use, check the bolt that fastens the blade and be sure the
bolt is secure and has no fault, and no abrasion.
2. Be sure that the blade and the holder have been fastened securely and
that the blade turns smoothly without abnormal noise.
3. Rotating parts fastened incorrectly may cause serious accident to the
4. Make sure that the blade is not bent, warped,cracked, broken or damaged.
5. If you find any fault or damage to the blade, discard it and replace with
a new one.
Controlling Blade Thrust
Blade thrust can cause serious personal injury. Carefully study this section.
It is important that you understand what causes blade thrust, how you can
reduce the chance of blade thrust and how you can remain in control of the
unit if blade thrust does occur.
What causes blade thrust:
Blade thrust can occur when the moving blade contacts an object that it
cannot cut. This contact causes the blade to stop for an instant and then
suddenly move or “bounce” away from the object that was hit. The operator
can lose control of the unit and the blade can cause serious personal injury
to the operator or any person nearby if the blade contacts any part of the
How you can reduce the chance of blade thrust:
a. Recognize that blade thrust can happen. By understanding and
knowing about bounce, you can help eliminate the element of surprise.
b. Cut fibrous weeds and grass only. Do not let the blade contact
materials it cannot cut such as hard, woody vines and bushes or rocks,
fences, metal, etc.
c. Be extra prepared for bounce if you must cut where you cannot see
the blade making contact such as in areas of dense growth.
d. Keep the blade sharp. A dull blade increases the chance of bounce.
Important: Check the blade securing bolt before each use.
Multi Tool FM5-1
How you can maintain the best control:
a. Keep a good, firm grip on the unit with both hands. A firm grip
can help neutralize bounce. Keep your right and left hands completely
around the respective handles.
b. Keep both feet spread apart in a comfortable stance and yet braced
for the possibility that the unit could bounce. Do not over reach. Keep
firm footing and balance.
e. Avoid feeding the blade too rapidly. The blade can bounce away from
material being cut if the blade is fed faster than its cutting capability.
f. Cut only from your right to your left.
g. Keep your path of advance clear of material that has been cut and
other debris.
Maintenance Of Blade
Check the blade and the fasteners for looseness, cracking, or bending.
1. Keep the end corner sharp.
2. Round the root of the edge, using a round file.
3. Do not use water when using a grinder.
It is recommended that filing should be done by professionals.
Transporting The Unit
When you finish cutting in one location and wish to continue work in another
spot, turn off the engine, lift up the unit and carry it, paying attention to the
Never forget to place the protective cover over the blades.
When transporting the unit over long distances, detach the blade and fasten
the unit by ropes.
Multi Tool FM5-1
Working With The Hedge Trimmer
This product is equipped with extremely sharp blades and when used
improperly these 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 follow the following instructions
when using your trimmer.
• Never hold the trimmer in a way in which the blades are pointed towards
someone else.
• Never allow the blades to come into proximity with your body while the
engine of the trimmer is in operation.
• Always be sure to turn off the engine before changing the angle of the
blades, removing branches which have become stuck in the blades, or at
any other time when coming into close proximity with the blades.
• Always wear work gloves made of leather or sturdy material when using
the trimmer.
• Always place the blade cover provided with the trimmer over the blades
when not in use.
• Falling branches may fall onto the face or into the eyes, resulting in
injuries, scratches, and cuts, and for this reason you should always be
sure to wear a helmet and face protector when using your trimmer.
The thickness of branches, which may be cut using this trimmer, is limited
to up to approximately 3/16” (5 mm). Never try to cut branches thicker than
this, as doing so may result in damage to the trimmer.
Multi Tool FM5-1
Adjusting the hedge trimmer head
1. Stop the engine
2. Fit the protective cover on the
3. Pull out the safety rod (1).
4. Turn the adjustment mechanism
(2) to just the angle of the hedge
trimmer head.
Working With The Pole Pruner
Chain oil
Pour the chain oil into the oil tank (2) and tighten
the cap securely.
After starting the engine, run the chain at medium
speed and see if chain oil (1) has scattered off, as
shown in the figure.
The oil reservoir has a capacity sufficient to
provide about 40 minutes of cutting time (when
set to deliver the optimal flow rate, or about as
long as you’ll get from a tank of fuel). Be sure to
refill the oil tank every time when refuelling the
Warning: Never fill the pole pruner oil reservoir with the engine
Multi Tool FM5-1
Oil Flow Rate
The guide bar and chain are lubricated automatically by a pump that operates
whenever the chain rotates. The pump is set at the factory to deliver an
optimal flow rate.
Locating holes
Locking pin
Locking sleeve
Adjusting the pruner head angle
The angle of the pruner head can be adjusted through 90 degrees. This
makes it easier to cut high branches as you are pulling down on the shaft
rather than pushing the shaft.
1. Pull the locking sleeve back along the shaft so that the locking pin is
clear of the locating hole.
2. Change the position of the pruner head to the desired angle.
3. Slide the locking sleeve back along the shaft to engage the locking pin in
the required locating hole.
Warning: Always wear work gloves made of leather or sturdy
material when using the polesaw.
Falling branches may fall onto the face or into the eyes, resulting
in injuries, scratches, and cuts, and for this reason you should
always be sure to wear a helmet and face protector when using
your polesaw
Multi Tool FM5-1
When you finish using the strimmer in one location and wish to
continue work in another spot, turn off the engine, lift up the unit
and carry it, paying attention to the hot engine.
Be careful not to tip any fuels during moving to another spot.
When transporting the unit over long distances, ensure the engine is
cool to the touch, and that any fluids cannot spill out.
Multi Tool FM5-1
Transporting The Multi Tool
Fuel leaks, fuel spillage
Wipe up
Fuel tank, air filter, fuel
Idle adjusting screw
See Adjusting idle
speed (pg. 48)
Spark plug
Clean and readjust gap
Cylinder fins, air intake
Exhaust, spark arrester,
cylinder exhaust port
Throttle trigger, stop
Check operation
Cutting parts
Replace if faulty
Cutting attachment
Attach to tool
Oiling port
Guide Bar
Make sure to maintain the machine in good working condition, carry out regular
maintenance of the machine after each use and before storage. Any breach in
adequate maintenance reduces the life of the machine and increases the risk of
breakdowns and accidents.
To preserve the security system throughout the life of the machine, it is important
to perform maintenance and proper cleaning, DO NOT use noncompliant
replacement parts and DO NOT dismantle the machine yourself or change the
security features.
Warning: Make sure that the engine has stopped and is cool before
performing any service to the machine. Contact with moving
cutting head or hot exhaust may result in a personal injury.
Multi Tool FM5-1
Brush Cutter Edge Strimmer
The reduction gears in the angle transmission
are lubricated by multipurpose, lithium based
grease. Supply new grease every 25 hours of
use, or more often depending on the usage
frequency of the product.
Remove the cutter holders before installing
new grease, to allow for old grease to exit.
Refilling The Trimming Line
1. For replacement line, use a line with diameter of 2.4mm (.095in). The spool
is capable to holding up to 2.5m. Avoid using a larger line as it may reduce
the trimming performance.
2. Pinch the slotted area on the both sides of the spool housing to unhook the
bottom cap.
3. Take out the spool and pull off the old line. Put one end of new line through
the spool holes and pull it until the length is equal between each part of the
4. Wind up the line in the correct direction as indicated on the spool.
5. Hook each end of the line in the slot on the edge of the spool, and then put
the ends through the eyelets on the housing. Make sure that the spring and
the washers are in place.
6. While holding the spool against the housing, pull the line ends to release
them from the slot.
7. Line up the slot on the bottom cap with the hook on the housing, press the
cap against the housing until it clicks.
Warning: For safety reasons, do not use metal reinforced line.
Multi Tool FM5-1
Multi Tool FM5-1
Hedge trimmer
When refilling the tank or resting, it is often a good idea to use the time to
oil the cutting blades.
If a gap exists between the upper and lower blades, follow the procedure
below to adjust them so that they fit more closely together.
1. Loosen lock nut (A) as shown in the diagram.
2. Tighten screw (B) fully, and then turn onethird to one-half of a rotation backward.
3. While holding onto the screw to keep it in
position, tighten the lock nut.
4. Check to make sure that the flat washer (C)
is loose enough so that it may be turned by (1) Upper blade
(2) Lower blade
pressing on it with a finger.
The reduction gears are lubricated by multipurpose, lithium based grease
in the transmission. Supply new grease every 25 hours of use or more often
depending on the job condition. When adding lubricant, use a grease gun to
insert lubricant into the three grease nipples located on the transmission.
Note: Screwing in the screw too tightly may make it impossible for
the blades to move. Conversely, not screwing in the screw tightly
enough may make the blades of the trimmer feel dull and cause
leaves and branches to become caught in the blades of the trimmer.
Multi Tool FM5-1
Oiling port
Dismount the guide bar and check the
oiling port for clogging.
Guide bar
Remove any sawdust in the bar groove
and the oiling port.
Grease the nose sprocket from the
feeding port on the tip of the bar.
Bar rail
The bar rail should always be square. Check for
wear of the bar rail. Apply a ruler to the bar and the
outside of a cutter. If a gap is observed between
them, the rail is normal. Otherwise, the bar rail is
worn. Such a bar needs to be corrected or replaced.
No Gap
Multi Tool FM5-1
Check for extensive wear, and replace it when the teeth
are worn over 0.3 mm.
Chain Sharpening
Clamp the chain bar in a vice or workbench. Place
your file on the cutter and push straightforward.
Keep the file position as illustrated to the right.
After every cutter has been set, check the depth
gauge and file it to the proper level as illustrated
in 1, 2 and 3.
Make sure every cutter has the same length and
edge angles as illustrated in 4, 5, 6, and 7.
Multi Tool FM5-1
The reduction gears are lubricated by
multipurpose lithium based grease in the
Supply new grease every 25 hours of use or
more often depending on the usage frequency
of the product.
When adding lubricant, use a grease gun to
insert lubricant into the grease nipple located
on the transmission.
Grease filling
Engine Maintenance
Air filter
The air filter, if clogged, will reduce the engine
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.
Air filter
Fuel filter
If the engine runs short of fuel, check the fuel
cap and the fuel filter for blockage.
Fuel filter
Spark plug
Starting failure and misfiring are often caused
by a fouled spark plug. Clean the spark plug
and check that the plug gap is in the correct
For a replacement spark plug, use the correct
Warning: The engine remains hot for a considerable time after
use. Ensure the engine is cool before performing any service.
Multi Tool FM5-1
Clearing blockages
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. Make sure it is cleaned
Intake air
Exhaust cleaning after every 100 hours of
1. Remove the exhaust, insert a screwdriver
into the vent, and wipe away any carbon
buildup. Wipe away any carbon buildup
on the exhaust vent and cylinder exhaust
port at the same time.
2. Tighten all screws, bolts, and fittings.
3. Check to see if any oil or grease has
worked its way in between the clutch
lining and drum, and if it has, wipe it away
using spirits.
Multi Tool FM5-1
Aged fuel is one of the major causes of engine starting failure. Before
storing the unit, empty the fuel tank and run the engine until it uses all the
fuel left in the fuel line and the carburettor. Store the unit indoors taking
necessary measures for rust prevention.
• Keep product, user manual and accessories in the original packaging.
• Clean tool before storage.
• Perform maintenance operations and proper cleaning before storage.
• For prolonged periods of storage, drain the oil and fuel from the tanks,
and lubricate the chain and moving parts.
• Always lubricate the cutter blades with protective oil spray before
• Store the machine with the supplied cutter blade protection cover.
• It is recommended to store the product in a clean, dry location,
protected from humidity, frost and dust, and keep it out of children’s
reach (e.g. high or in a locked up place).
• Do not store product in temperatures lower than 0ºC (32ºF)
• Do not place or store any object on top of the product
Multi Tool FM5-1
Fuel tank
Incorrect fuel
Drain and use correct
Fuel filter
Fuel filter is clogged
Carburettor adjustment
Out of normal range
Adjust to normal
Sparking (no spark)
Spark plug is fouled or
Plug gap is incorrect
Correct gap 0.6 0.9mm
Spark plug
Case 1: Starting failure
Case 2: Engine starts but does not keep running
Fuel tank
Incorrect fuel or stale
Drain fuel and refill
Carburettor adjustment
Out of normal range
Adjust to normal
Exhaust, cylinder (exhaust port)
Build up of carbon
Wipe away
Air filter
Clogged with dust
Cylinder fin, fan cover
Clogged with dust
Multi Tool FM5-1
Cutting remnants: do not throw away with household rubbish or into the
environment. Dispose of cutting remnants in rubbish collection centres or
seek advice from your local council.
Tool: do not dispose with household garbage.
Remove oil and fuel from the machine, and dispose them in specific
recycling centres.
Dispose of the product in a waste collection centre; or seek advice from
your local council.
Proceed with disposal of remnants, tool, accessories, fuel mixture, oil and
packaging according to local regulations regarding the protection of the
Multi Tool FM5-1
This product carries a limited parts warranty for 1 year from the
date of purchase. Please keep your proof of purchase as this will be
required for any claim.
Should this product become defective, contact the store where it
was purchased and either replacement parts will be issued, it will
be repaired or it will be replaced free of charge.
This Warranty Does Not Cover:
1.Any part that has become inoperative due to misuse, abuse,
neglect, accident, improper maintenance, or alteration
2.The unit, if it has not been operated and/or maintained in
accordance with the owner’s manual
3.Normal wear
4.Routine maintenance items such as lubricants, blade sharpening
5.Normal deterioration of the exterior finish due to use or exposure
Shipping Charges:
Shipping charges for the delivery or collection of the unit, parts
of the unit or attachments to the unit are the responsibility of the
purchaser. The purchaser must pay transportation charges for any
part submitted for replacement under this warranty unless such
return is requested by Forest Master.
Multi Tool FM5-1
NOTE: It is our policy to continually improve products and as such we reserve the right to alter
data, specifications and component parts without prior notice.
Manufactured under license for Forest Master Limited.
Registered Office:
Forest Master Ltd, Industry Road, Heaton, Newcastle Upon Tyne, NE6 5XB, United Kingdom.
Tel: +44 191 2966939 email: [email protected] - web: www.forest-master.com
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