Power blade Mx9500 User manual

Concrete Cut-off Saw – MX9500

User Manual

[Revision 1.0 November 2018]

READ THIS MANUAL CAREFULLY BEFORE USE – FAILURE TO DO SO MAY RESULT IN INJURY, PROPERTY

DAMAGE AND MAY VOID WARRANTY. • KEEP THIS MANUAL FOR FUTURE REFERENCE. • Products covered by

this manual may vary in appearance, assembly, inclusions, specifications, description and packaging.

The product is NOT supplied with engine oil, although traces of oil from the manufacturing

process may be present. It is essential to add adequate engine oil of the correct type to the

engine before use. Failure to add engine oil will void the product warranty.

Concrete Cut-off Saw – MX9500

Safety

Safety messages are designed to alert you to possible dangers or hazards that could cause death, injury or

equipment or property damage if not understood or followed. Safety messages have the following symbols:

You WILL be KILLED or

SERIOUSLY INJURED if you

do not follow instructions.

You CAN be KILLED or

SERIOUSLY INJURED if you

do not follow instructions.

You CAN be INJURED if you

do not follow instructions or

equipment damage may occur.

It is vital that you read and understand

this user manual before using the product,

including safety warnings, and any

assembly and operating instructions.

Keep the manual for future reference.

Safety precautions and recommendations

detailed here must be fully understood

and followed to reduce the risk of injury,

fire, explosion, electrical hazard, and/or

property damage.

Safety information presented here is

generic in nature – some advice may not

be applicable to every product. The term

"equipment" refers to the product, be it

electrical mains powered, battery powered

or combustion engine powered.

•Before Use - If you are not familiar with

the safe operation/handling of the

equipment, or are in any way unsure of

any aspect of suitability or correct use

for your application, you should

complete training conducted by a

person or organization qualified in safe

use and operation of this equipment,

including fuel/electrical handling and

safety.

•Do NOT operate the equipment in

flammable or explosive environments,

such as in the presence of flammable

liquids, gases or dust. The equipment

may create sparks or heat that may

ignite flammable substances.

•Keep clear of moving parts.

•Equipment may be a potential source of

electric shock or injury if misused.

•Do NOT operate the equipment if it is

damaged, malfunctioning or is in an

excessively worn state.

•Do NOT allow others to use the

equipment unless they have read this

manual and are adequately trained.

•Keep packaging away from children -

risk of suffocation! Operators must use

the equipment correctly. When using

the equipment, consider conditions and

pay due care to persons and property.

General Work Area Safety

•Work areas should be clean and well it.

•Do not operate the equipment if

bystanders, animals etc are within

operating range of the equipment or the

general work area.

•If devices are provided for connecting

dust extraction / collection facilities,

ensure these are connected and used

properly. Dust collection can reduce

dust-related hazards.

General Personal Safety

•Wear appropriate protective equipment

when operating, servicing, or when in

the operating area of the equipment to

help protect from eye and ear injury,

poisoning, burns, cutting and crush

injuries. Protective equipment such as

safety goggles, respirators, non-slip

safety footwear, hard hat, hearing

protection etc should be used for

appropriate equipment / conditions.

Other people nearby should also wear

appropriate personal protective

equipment. Do not wear loose clothing

or jewellery, which can be caught in

moving parts. Keep hair and clothing

away from the equipment.

•Stay alert and use common sense

when operating the equipment. Do not

over-reach. Always maintain secure

footing and balance.

•Do not use the equipment if tired or

under the influence of drugs, alcohol or

medication.

•This equipment is not intended for use

by persons with reduced physical,

sensory or mental capabilities.

General Fuel Safety

•Petrol/fuel/gasoline is extremely

flammable – keep clear of naked

flames or other ignition sources.

•Do not spill fuel. If you spill fuel, wipe it

off the equipment immediately – if fuel

gets on your clothing, change clothing.

•Do NOT smoke near fuel or when

refuelling.

•Always shut off the engine before

refuelling.

•Do NOT refuel a hot engine.

•Open the fuel cap carefully to allow any

pressure build-up in the tank to release

slowly.

•Always refuel in well ventilated areas.

•Always check for fuel leakage. If fuel

leakage is found, do not start or run the

engine until all leaks are fixed.

General Carbon-Monoxide Safety

•Using a combustion engine indoors

CAN KILL IN MINUTES. Engine

exhaust contains carbon-monoxide – a

poison you cannot smell or see.

•Use combustion engines OUTSIDE

only, and far away from windows, doors

and vents.

General Equipment Use and Care

•The equipment is designed for

domestic use only.

•Handle the equipment safely and

carefully.

•Before use, inspect the equipment for

misalignment or binding of moving

parts, loose components, damage or

any other condition that may affect its

operation. If damaged, have the

equipment repaired by an authorised

service centre or technician before use.

•Prevent unintentional starting of the

equipment - ensure equipment and

power switches are in the OFF position

before connecting or moving

equipment. Do not carry equipment

with hands or fingers touching any

controls. Remove any tools or other

items that are not a part of the

equipment from it before starting or

switching on.

•Do not force the equipment. Use the

correct equipment for your application.

Equipment will perform better and be

safer when used within its design and

usage parameters.

•Use the equipment and accessories

etc. in accordance with these

instructions, considering working

conditions and the work to be

performed. Using the equipment for

operations different from those

intended could result in hazardous

situations.

•Always keep equipment components

(engines, hoses, handles, controls,

frames, housings, guards etc) and

accessories (cutting tools, nozzles, bits

etc) properly maintained. Keep the

equipment clean and, where applicable,

properly lubricated.

•Store the equipment out of reach of

children or untrained persons. To avoid

burns or fire hazards, let the equipment

cool completely before transporting or

storing. Never place or store the

equipment near flammable materials,

combustible gases or liquids etc.

•The equipment is not weather-proof,

and should not be stored in direct

sunlight, at high ambient temperatures

or locations that are damp or humid.

•Do not clean equipment with solvents,

flammable liquids or harsh abrasives.

•For specific equipment safety use and

care, see Equipment Safety.

Concrete Cut-off Saw – MX9500

General Electrical Safety

•Inspect electrical equipment, extension

cords, power bars, and electrical fittings

for damage or wear before each use.

Repair or replace damaged equipment

immediately.

•Ensure all power sources conform to

equipment voltage requirements and

are disconnected before connecting or

disconnecting equipment.

•When wiring electrically powered

equipment, follow all electrical and

safety codes.

•Wherever possible, use a residual

current device (RCD).

•High voltage / high current power lines

may be present. Use extreme caution

to avoid contact or interference with

power lines. Electrical shock can be

fatal.

General Electrical Safety

•Electrically grounded equipment must

have an approved cord and plug and

be connected to a grounded electrical

outlet.

•Do NOT bypass the ON/OFF switch

and operate equipment by connecting

and disconnecting the electrical cord.

•Do NOT use equipment that has

exposed wiring, damaged switches,

covers or guards.

•Do NOT use electrical equipment in wet

conditions or in damp locations.

•Do NOT use electrical cords to lift,

move or carry equipment.

•Do NOT coil or knot electrical cords,

and ensure electrical cords are not trip

hazards.

General Service Information

•The equipment must be serviced or

repaired at authorised service centres

by qualified personnel only.

•Replacement parts must be original

equipment manufacturer (OEM) to

ensure equipment safety is maintained.

•Do NOT attempt any maintenance or

repair work not described in this

manual.

•After use, the equipment and

components may still be hot – allow the

equipment to cool and disconnect spark

plugs and/or electrical power sources

and/or batteries from it before making

adjustments, changing accessories or

performing repair or maintenance.

•Do NOT make adjustments while the

equipment is running.

•Perform service related activities in

suitable conditions, such as a

workshop.

•Replace worn, damaged or missing

warning/safety labels immediately.

Concrete Cut-off Saw – MX9500

Safety Symbols

The product may have safety warning labels attached to it, explained below. Understand the symbols on

your product and their meanings. If any stickers become unreadable, unattached etc, replace them.

Flammable Material Hazard

Flammable liquids, gases or

substances etc may present.

Avoid ignition sources and

open flames. Danger of fire.

Read User Manual

Read and fully understand

product safety warnings,

operation, procedures etc

before using the product.

Use Hand Protection

Wear appropriate hand

protection and take due care

as the product or use of the

product may present hand

hazards.

Carbon-Monoxide Hazard

Do not use the product in

confined areas or without

adequate ventilation. Carbon-

monoxide poisoning can be

fatal.

Electrocution / Electrical

Shock Hazard

High voltage or high current

electricity may be present or

required by the product. Take

due care when handling

electrical products, cables,

plugs and leads. Electrical

shock can be fatal.

Toxic Fumes / Dust Hazard

Using the product or by-

products from use may

produce fumes, smoke or

particles that could be harmful

if inhaled. Wear appropriate

breathing protection and have

adequate ventilation.

Explosive Material Hazard

Combustible liquids, gases or

substances etc may be

present. Avoid ignition sources

and open flames. Danger of

explosion.

Cutting / Amputation Hazard

The product may have blades,

edges or mechanical devices

that can cause severe cut

injury to fingers, limbs etc.

Take due care when handling

and using the product.

Crush Hazard

The product may have blades,

edges or mechanical devices

that can cause severe crush

injury to fingers, limbs etc.

Take due care when handling

and using the product.

Single Operator Only

The product must be operated

by a single person only. More

than one person operating the

product may introduce

additional hazards.

Use Face Protection

Wear appropriate full-face

protection and take due care

as the product or use of the

product may present face and

eye hazards.

Use Foot Protection

Wear appropriate foot

protection and take due care

as the product or use of the

product may present foot

hazards.

Use Eye / Ear / Head

Protection

Wear appropriate eye and / or

ear and / or head protection

and take due care as the

product or use of the product

may present eye, hearing and

head hazards.

Running Hazard

Do not run on or near the

product as doing so may

present a fall hazard.

Diving Hazard

Do not dive into the product as

doing so may present a neck /

head injury hazard.

Adult Supervision Required

Always supervise children and

other users of a product to

prevent drowning or injury.

Skin Penetration / Puncture

Hazard

The product may produce

pressure, emit liquids or

objects that can cause severe

injury to fingers, limbs, blood

etc. Take due care when

handling and using the

product.

Hot Surface Hazard

Be aware that the product may

produce high temperatures

and hot surfaces that can

cause burn injuries.

Flying Debris Hazard

Be aware that the product or

use of the product may

present hazards produced by

flying debris. Wear appropriate

clothing and protectiove

devices.

Moving Parts Hazard

Be aware that the product

contains or uses mechanical

devices that move or rotate.

Always wait for moving parts

to stop fully before handling

the product, adjusting,

maintenence etc.

Concrete Cut-off Saw – MX9500

Carbon-Monoxide Hazard

Do not use the product in

confined areas or without

adequate ventilation. Carbon-

monoxide poisoning can be

fatal.

Pull Hazard

Be aware that the product

contains or uses mechanical

devices that can pull in objects

and can cause severe injury to

fingers, limbs etc. Take due

care when handling and using

the product.

Slope / Fall Injury Hazard

Be aware that using the

product on sloping surfaces or

in slippery conditions may

present additional dangers

from falls and contact with

blades, moving parts, hot

surfaces etc.

"Slam Dunk" Warning

Do NOT attempt "slam dunk"

maneouvres as this may result

in severe injury due to falling,

product breakage or collapse

etc.

Electrocution / Electrical

Shock Hazard - Outdoor

High voltage or high current

electricity may be present or

required by the product. Do

NOT use in rain, damp or wet

conditions. Electrical shock

can be fatal.

Electrocution / Electrical

Shock Hazard - Disconnect

High voltage or high current

electricity may be present or

required by the product.

Always disconnect the product

from the electrical supply

before handling the product,

adjusting, maintenence etc.

Power Line Electrocution

Hazard

High voltage / high current

power lines may be present.

Use extreme caution to avoid

contact or interference with

power lines. Electrical shock

can be fatal.

"Kick-Back" Hazard

High level of "kick-back"

hazard that can cause the

machine to suddenly rotate

towards operator. Kick-back

injury can be fatal.

Winch Operator Position

Hazard

Do NOT stand between winch

and load. Do NOT use winch

to move people.

Winch Lift Hazard

Do NOT LIFT load vertically.

Use machine to PULL only.

Cable Hazard

Ensure that load bearing cable

is not kinked or knotted.

Winch Cable Hazard

Ensure that there is a

minimum number of cable

coils on winching mechanism.

Winch Hook Hazard

Carry hook to load – do NOT

throw or run.

Flash / Blinding Hazard

Wear appropriate eye

protection for welding. Dorect

exposure to weld arcs may

cause permanent eye injury.

Laser Hazard

Laser may be in use – do NOT

look directly at laser, or allow

others to.

Concrete Cut-off Saw – MX9500

Equipment Safety

Concrete saws are high-speed, fast-cutting equipment with exposed blades that can cause

serious or fatal injury if not used correctly or without taking proper safety precautions. It is

extremely important that you read and fully understand the information in this section and all other

safety warnings / recommendations and usage instructions before using the equipment.

Operator

•If you are untrained in the use of a concrete saw, it is highly recommended that you be trained/instructed

by a suitably qualified or experienced person before using the machine.

•NEVER operate the machine when tired, or under the influence of any substance (medication, alcohol,

drugs etc) that may impair your judgement, alertness, physical strength, vision or dexterity.

•Maintain sure-footing and balance always when using or handling the machine and have full awareness

of your surroundings and any possible hazards.

•Prolonged use may lead to health complications, such as carpal tunnel syndrome, due to vibration. To

help reduce the possibility of such conditions, wear gloves, take breaks frequently, keep fingers and

hands warm, and maintain the equipment for optimal operation and minimal vibration. It is recommended

to seek medical advice if you feel numbness or burning sensations in fingers/hands.

Clothing and Protective Equipment – All Operators and Assistants

•Wear approved safety goggles, or safety glasses with adequate top and side protection. In addition to

eye protection, wearing a full-face shield is highly recommended.

•Wear suitable hearing protection.

•Wear approved respiration equipment.

•Wear heavy-duty, non-slip leather or protective gloves.

•Wear approved heavy-duty safety boots, with steel toe-caps and non-slip soles.

•Wear suitable overalls or work clothing that fits snugly, but does not restrict movement. Avoid loose

fitting clothing, scarves, jewellery etc and keep long hair contained to avoid getting caught or pulled by

the machine etc.

Work Area Safety

•Use EXTREME CAUTION to avoid underground power lines – contact can be fatal. Contact the

necessary utilities authority etc to ensure that it is safe to use the machine.

•The abrasive cutting action of the machine can generate dust and vapours which may contain harmful

chemicals. Know the nature of the material being cut before cutting and ALWAYS use appropriate dust

mask or respirator equipment.

•Ensure that any person other than the operator and any assistants is kept a minimum 10m (30') away

from where the equipment is being used.

•Be aware of fire risks resulting from machine use. Ensure that the machine exhaust and spark arrestor (if

equipped) is well maintained and that engine is tuned correctly.

•Refuel outdoors only. Avoid fuel spillage. Start the machine at least 3m (10') away from the fuelling

location.

Operational Safety

•Do NOT use the machine if the throttle or any safety guard or mechanism is not installed or is not

operating correctly – have the machine inspected and repaired at an authorised service centre before

using it again.

•Fully understand how to safely operate the machine and the sawing process to avoid "kick-back". See

Operation.

•Always hold the machine firmly with both hands during operation. Always use the machine handles.

Concrete Cut-off Saw – MX9500

•Do NOT use the equipment for purposes it is not designed for, such as wood sawing.

Transportation Safety

•Always STOP the engine before transporting the machine, or working on it (refuelling, adjusting etc).

•When transporting the machine in a vehicle, ensure the engine is OFF. Secure the machine in an upright

position to prevent tip-over, machine damage or fuel spills.

Concrete Cut-off Saw – MX9500

Table of Contents

Safety...................................................................................................................................................2

Safety Symbols ..........................................................................................................................................4

Equipment Safety...............................................................................................................................6

Parts Identification...........................................................................................................................10

Machine Components......................................................................................................................11

Before Use Checklist.......................................................................................................................12

Assembly .................................................................................................................................................12

Air Filter....................................................................................................................................................12

Fuel .......................................................................................................................................................... 12

Spark Plug ...............................................................................................................................................12

Drive Belt Tension....................................................................................................................................12

Engine Starting and Stopping ........................................................................................................13

Starting the Engine................................................................................................................................... 13

Stopping the Engine.................................................................................................................................13

Environmental Considerations ................................................................................................................. 13

Concrete Saw Operation .................................................................................................................14

Understanding and Avoiding "Kick-Back" and Other Reactionary Forces................................................ 14

Basic Cutting Guidelines..........................................................................................................................15

Cutting Wheels and Discs........................................................................................................................15

Abrasive Types..................................................................................................................................16

Diamond Types .................................................................................................................................16

Maintenance .....................................................................................................................................17

Maintenance Schedule – 2-Stroke Engines / Machines...........................................................................18

Air Filter....................................................................................................................................................19

Inspection and Cleaning ....................................................................................................................19

Removal/Installation ..........................................................................................................................19

Spark Plug ...............................................................................................................................................20

Cleaning and Gap Checking.............................................................................................................20

Removal/Installation ..........................................................................................................................20

Fuel Strainer ............................................................................................................................................21

Inspection and Cleaning ....................................................................................................................21

Removal/Installation ..........................................................................................................................21

Cutting Wheel / Disc.................................................................................................................................22

Drive Belt .................................................................................................................................................23

Adjusting Tension ..............................................................................................................................23

Removal/Installation ..........................................................................................................................23

Engine Tuning Guidelines........................................................................................................................ 25

Carburettor Adjustments....................................................................................................................25

Concrete Cut-off Saw – MX9500

Factory Settings.................................................................................................................................26

Tuning................................................................................................................................................26

Cleaning Guidelines................................................................................................................................. 27

Transportation and Storage............................................................................................................27

Troubleshooting...............................................................................................................................28

Specifications...................................................................................................................................30

Engine Service and Maintenance Record..................................................................................... 31

Concrete Cut-off Saw – MX9500

Parts Identification

No. Name No. Name

1

Machine 6 Tools / Accessories:

Spark Plug Multi-Tool

Screwdriver (small)

5 / 6mm Allen Key

12 / 16mm Spanner

2

Cutting Wheel

3 Flange (2)

4 Spacer

5 Wheel Bolt

3

1

5

4

2

6

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

Concrete Cut-off Saw – MX9500

Machine Components

The saw comes supplied with all parts required for normal use. A basic toolkit may also be included. It is

strongly recommended that you familiarise yourself with all major components of the machine before using it

or performing any maintenance tasks.

No. Name No. Name

1 Cutting Disc 10 Drive Belt Cover

2 Upper Handle 11 Wheels

3 Choke Control 12 Air Filter Cover (filter inside)

4

Exhaust

13

Engine ON / OFF Switch

5

Fuel Filler Cap

14

Throttle Lockout

6 Rear Handle 15 Throttle Control

7 Spark Plug (under cover) 16 Coolant Tube (includes valve and hose connection)

8 Cutting Guard 17 Throttle Lock

9 Starting Cord 18 Spindle

The section circled in red is for when the unit is configured as a chainsaw and when the unit is

configured as a concrete saw this will be a blank chamber and can be disregarded. The blue circle

is the anti-vibration system.

2

3

4

5

8 7

6

10

12

1

13

14

17

11

15

9

16

19

18

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

Concrete Cut-off Saw – MX9500

Before Use Checklist

Ensure that you carry out all procedures below before starting the engine or operating the

equipment. Failure to follow the checklist and carry out the procedures correctly may result in

making the product warranty void. • Wear suitable protective gloves when handling cutting wheels.

Assembly

Assembly is limited to installing the cutting wheel only. Prior to assembly, unpack all components and check

that all items have been received. See Cutting Wheel.

Air Filter

The air filter is used to prevent dirt and other particles from possibly entering the engine and causing internal

damage to it. The air filter requires regular maintenance.

Always check the air filter before starting the engine. See Air Filter.

Fuel

Petrol/fuel/gasoline is extremely flammable – keep clear of naked flames or other ignition

sources. • The engine must be OFF and cool before refuelling. • Always pre-mix the fuel

before placing it in the fuel tank. • The fuel to 2-stroke engine oil mixture ratio is 25:1.

Adequately fill the fuel tank with the correct fuel type.

•Use non-ethanol unleaded petrol mixed at a 25:1 ratio with 2-stroke engine oil (higher RON values and

good quality 2-stroke oil will provide best engine performance). Do not use old or contaminated fuel/oil.

Fuel/oil mix ratio examples are shown below.

Petrol (Litre)

1

2

5

10

Gas (US Gal)

0.5

1

2

3

Oil (Millilitre)

40

80

200

400

Oil (Fl. Oz)

2.56

5.12

10.24

15.36

To fill or top up fuel:

1. Place the machine in a horizontal position on a flat and level surface with the fuel filler cap facing up.

2. Clean the machine around the fuel filler so that no dirt or other material enters the engine when the cap

is removed.

3. Remove (rotate left) the fuel filler cap.

4. Using a funnel, carefully fill the tank with fuel. Do not fill above the top of the strainer (if equipped) or

otherwise overfill the tank.

5. When finished, reinstall (rotate right) the fuel filler cap until firm. Wipe away any residual fuel from the

machine. If fuel has been spilt, move the machine away from the spillage before starting the engine.

Spark Plug

The spark plug may come disconnected from the spark plug lead. If this is the case, place the electrical lead

over the spark plug terminal and push it down so that it connects firmly with the terminal. See Spark Plug .

Drive Belt Tension

Correct drive belt tension is extremely important in terms of both machine efficiency, service life and operator

safety. If you experience the cutting wheel stopping or noticeable belt slip when using the machine, stop

immediately and adjust tension. See Drive Belt.

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

Concrete Cut-off Saw – MX9500

Engine Starting and Stopping

Ensure that the cutting wheel is not in contact with, or near any objects before starting the

engine. • Once the engine is running at sufficient speed, the clutch will engage and begin

rotating the cutting wheel. • Do NOT start the engine with the cutting wheel in a cut or touching any

object. • If the engine is new or is being re-started after completely running out of fuel, it may be necessary

to pull the starter cord several times for fuel to reach the carburettor.

Starting the Engine

1. CHOKE – If the engine is cold, place the choke (A) in the "COLD" position. If the engine is warm or the

ambient temperature is high, place the choke in the "RUN" position.

2. IGNITION – Place the engine ON/OFF switch (B) in the "ON" ("I") position.

3. START – When starting the engine, ensure that the machine is on the

ground, and steady it with one foot in the rear handle and one hand

gripping the top handle before pulling the starter cord. Slowly pull out the

starter cord (C) until you feel it engage with the engine, then pull it out

rapidly. Allow the starter cord to rewind slowly – do not let it "snap" back.

On first use, the starter cord may need to be pulled several times to draw

fuel into the carburettor. Once the engine "sputters" or "kicks", place the

choke (A) in the "RUN" position, squeeze the throttle once then release it,

then repeat from step 3.

4. WARM-UP – Allow the engine to warm-up and run smoothly. If choke is being applied, gradually move

the choke (A) to the "RUN" position. For some models, the choke automatically shifts to the "RUN"

position when the throttle is squeezed.

5.

If the engine does not start, repeat step 3 onward. If the engine fails to start after several attempts, refer to

Troubleshooting.

Stopping the Engine

To stop the engine, release the throttle and place the engine ON/OFF switch in the "OFF" position.

Environmental Considerations

Altitude – If the engine is being used in altitudes at or above 1500m (approximately 5000'), adjustments to

the carburettor may be required. This is because there is less oxygen in the air as altitude increases, which

effectively "enriches" the ratio of fuel to air going into the engine, and the higher the altitude, the richer the

fuel mixture becomes. If the engine is being permanently operated at high altitude, it is recommended to

have an authorized service centre make the necessary carburettor adjustments. If the engine is used

occasionally at altitude (not extreme altitudes), no adjustments should be required, however, a slight

decrease in engine performance can be expected.

A

B

C

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

Concrete Cut-off Saw – MX9500

Concrete Saw Operation

Concrete saws are high-speed, fast-cutting equipment with exposed blades that can

cause serious or fatal injury if not used correctly or without taking proper safety

precautions. It is extremely important that you read and fully understand the information in this

section and all other safety warnings / recommendations and usage instructions before using the

equipment. • Always wear suitable protective clothing and equipment when using the machine. • Inspect the

machine before each use and check for wear or damage. If the machine is damaged, have it inspected and

repaired at an authorised service centre before using it again. • If you experience excessive vibration from

the machine during operation, this may indicate wear or damage. It is recommended to have it inspected and

repaired before using it again. • Be aware that once the engine is running, the cutting wheel will be rotating

and parts of the machine may be extremely hot. • Ensure that the cutting wheel is installed correctly, the

drive belt is tensioned correctly, and the cutting guard is installed before using the machine.

When the engine is idling (slowest continuous running speed), the clutch should disengage, preventing the

cutting wheel from being rotated. As engine speed increases, the clutch engages and rotates the cutting

wheel. Note the following recommendations:

•Operate the engine at full speed when cutting.

•Cut according to the recommended methods. If in doubt, do NOT cut – seek professional advice.

Understanding and Avoiding "Kick-Back" and Other

Reactionary Forces

Kick-back and other reactionary forces can cause loss of control of the machine and

can result in serious, even fatal injury – use the machine in ways to avoid kick-back

and other reactive forces at all times.

When the cutting wheel is rotating, many forces are created, such as the ability to cut. The contact point

between the cutting wheel and object to cut is critical. If the saw is not used correctly, cutting forces may

become "reactionary", in that instead of the cutting wheel rotating, a reactionary force is created. Many

factors affect the occurrence and force of reaction, such as cutting speed, cut depth, and cutting wheel

condition.

Kick-Back

"Kick-back" is a reactionary force that causes the cutting wheel to rotate up and back, against the direction of

cut. Kick-back can also be thought of as the cutting wheel "kick-back zone" "digging in" to the object to be cut

and momentarily stopping or significantly slowing rotation of the cutting wheel, which causes the saw to

suddenly and quickly rotate backwards towards the operator. To avoid kick-back:

•Do NOT use the tip of the cutting wheel for cutting or allow it to make contact with any object.

•Always hold the machine firmly by both front and rear handles when operating.

•Maintain cutting wheel sharpness and the correct cutter shape and cutting depth.

NEVER ALLOW ANY

OBJECT TO COME INTO

CONTACT WITH THE

KICK-BACK ZONE

Kick-Back

Zone

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

Concrete Cut-off Saw – MX9500

•Do NOT use the machine in any way where the machine cannot be securely held with both hands or the

entire machine is not visible to the operator.

•Use extreme caution when inserting the saw into a previous cut.

•Be alert to forces that may pinch the cutting wheel.

Pull-In

"Pull-in" is a reactionary force that causes the saw to pull forward in the direction of cut. Pull-in can also be

thought of as the bottom of the cutting wheel being caught, pinched or "digging in" to the object to be cut and

momentarily stopping or significantly slowing rotation of the cutting wheel, which causes the saw to suddenly

and quickly pull forward and away from the operator. To avoid pull-in:

•Ensure that the position of the cut in relation to the workpiece avoids closing.

•Use supports to help prevent cuts closing in over the cutting wheel.

Basic Cutting Guidelines

The following information are general guidelines to concrete saw use:

•Be alert to kick-back dangers at all times.

•Do NOT "plunge" cut or attempt deep, single-pass cuts.

•Keep the cutting guard as far forward (covering the cutting wheel) as practical.

•ALWAYS cut with the cutting wheel vertical (90° to the workpiece).

•Make small depth cuts, moving the saw back and forth through the cut, gradually increasing depth.

Cutting Wheels and Discs

There are 2 types of cutting wheels that can be used with

the saw – synthetic resin abrasive disc, and diamond coated

toothed steel.

•NEVER use a cutting wheel that has a slower speed

rating than the saw (5100RPM / 90m/s).

•NEVER use a cutting wheel to cut material it is not

designed to cut.

•Use only replacement blades recommended or supplied

by the manufacturer.

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

Concrete Cut-off Saw – MX9500

Abrasive Types

The cutting material in abrasive discs consists of abrasive grit bonded to the disc, which is generally made

from a fibreglass material.

Cutting performance is determined by the type and size of the abrasive grit, and the type and hardness of

the bonding agent. "Soft" cutting discs cut faster, however, also wear faster. "Hard" discs cut slower, but last

longer.

•Do NOT use water cooling with abrasive cutting wheels.

•Do NOT allow synthetic resin cutting wheels to be exposed to water or moisture – they absorb moisture

and can become unbalanced if any moisture is absorbed.

•Before using a cutting disc, check it carefully for damage, such as cracking or chipping. Place you finger

through the spindle hole in the disc and lightly tap the outer edge of the disc with a piece of wood – the

disc should "ring". If not, the disc may be damaged or unbalanced and should not be used.

•Abrasive discs cannot be "sharpened".

Diamond Types

The cutting wheels use a steel platter that often features "teeth" cut into the outer edge. The outer edge and

teeth have a diamond grit bonded to them that can be clearly seen. If the diamond edge can no longer be

seen, the cutting wheel requires replacing.

Generally, diamond cutting wheels have a long service life if used properly and maintained Water cooling is

recommended at all times. If a water supply is not available, lift the wheel from the cut every 30 seconds and

allow it to spin in the air for 10 seconds each time to cool.

•NEVER attempt to cut metals using diamond cutting wheels.

•Always check that the direction of rotation for the cutting wheel is the same as the saw.

•Always lubricate diamond cutting wheels with water during use. Connect the coolant tube to a suitable

water supply and keep the cutting wheel lubricated.

•Do not use excessive downward pressure as this can lead to dulling of the cutting edges.

•Diamond cutters can be dulled by the metallic bond melting over the diamond grit. To "sharpen" a dulled

cutting wheel, make several cuts into a piece of "diamond dressing stone", fire-brick or suitably abrasive

material – this is to grind away the metallic bond and again expose the diamond grit.

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

Concrete Cut-off Saw – MX9500

Maintenance

Running combustion engines in confined areas CAN KILL IN MINUTES. Engine exhaust

fumes contain carbon-monoxide – a deadly gas that you cannot smell or see. NEVER run

a combustion engine in confined areas EVEN IF windows and doors are open. ONLY run

combustion engines OUTDOORS and away from doors, windows and vents. • Petrol / fuel

/ gasoline is extremely flammable – keep clear of naked flames or other ignition sources. •

Do not have the engine running during inspection and maintenance unless specifically required. • The engine

should be cool enough to touch before performing maintenance activities. • Some maintenance activities

may be beyond the scope of some users. Do NOT attempt procedures that you are not comfortable with, or

do not have the necessary tools, experience or knowledge for – take the unit to an authorised service centre

or qualified technician for servicing. • Harsh operating environments such as extreme temperatures, dust etc

may necessitate more frequent maintenance. • Failure to follow the maintenance schedule, using

incorrect or non-compatible accessories or replacements parts, or general negligence may result in

making the product warranty void.

To keep the machine performing at optimal efficiency, regular checks and maintenance is required. The

maintenance schedule below specifies preventative maintenance checks and necessary maintenance tasks

and how often they should be performed. The schedule applies to multiple engines; some engines may not

include some components, so maintenance on those components is not applicable.

Maintenance Schedule

Use the following maintenance schedule for a list of regular maintenance tasks and how often they need to

be performed. Maintenance frequency is based on average usage. Be aware of how much the machine is

used and be sure to follow the schedule according to time or usage, whichever comes first.

Towards the end of this document is a form you can use for maintenance record keeping. It is recommended

that you keep a reference of all maintenance.

Major Servicing and "Heavy-Duty" Usage - For engines that are subject to "heavy-duty" use,

which can be defined as being used under loads of 85% or more and / or in use more than

approximately 300 hours per year (for example, generators and water pumps), more frequent "Major

Service" maintenance is required. In addition to normal service requirements, and as with many smaller

machine and off-road bike engines, the following parts (as applicable for petrol, diesel or 2-stroke engines)

may require replacement during a major service:

• Piston rings.

• Big-end bearings.

• Small-end bearings.

• Gudgeon pin.

• Oil rings.

• Gaskets and seals.

• Valve seats.

Inspection of the following items is required:

• Piston for cracks and stress fractures.

• Bore for wear requiring reconditioning.

• Full machine for broken, worn or loose parts.

Failure to follow the maintenance schedule, using incorrect or non-compatible accessories or

replacements parts, or general negligence may result in making the product warranty void.

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

Concrete Cut-off Saw – MX9500

Maintenance Schedule – 2-Stroke Engines / Machines

Major Service

–

Heavy

-Duty Use

Every 200

Hours Use

Check. Tighten as necessary

Replace

Clean

Replace as necessary

Flush and clean

Check. Adjust as necessary

Check. Tighten as necessary

Check. Clean / de

-coke as necessary

Perform

Sharpen. Replace as necessary

Check. Add as necessary.

Clean. Replace as necessary

Major Service

–

Normal Use

24 Months / 200

Hours Use

12 Months /

100 Hours

Use

Clean. Replace as necessary

6 Months / 50

Hours Use

3 Months / 25

Hours Use

Check

After First 5

Hours Use

Every Use

Check

Component / Task

Loose Engine / Machine

Fasteners

Air Filter

Spark Plug

Spark Arrestor

*

Fuel Filter

*

Fuel Strainer

*

Float Bowl

*

Fuel Lines / Hoses

Fuel Tank

Idle Speed

Engine Tune

Cylinder Head Fasteners

Combustion Chamber

Major Service

Cutting Blade / Chain

*

Chain Lubricant

*

Chain Lubricant Strainer

*

*Where applicable.

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

Concrete Cut-off Saw – MX9500

Air Filter

Operating the machine without a functional air filter may cause severe engine damage and will void

any warranty. • A dirty or oil saturated air filter will restrict air flow, which can be mistaken as fuel

system problems. Check the condition of the air filter before adjusting engine idle speed, where applicable. •

If the air filter is damaged (torn, broken, disintegrating), replace it.

The air filter is used to prevent dirt and other particles from possibly entering the engine and causing internal

damage to it. The air filter requires regular maintenance as per the maintenance schedule.

Inspection and Cleaning

Inspect the air filter for dirtiness and debris, damage etc. Clean or replace the filter element as necessary. To

clean air filters:

•For foam filters, wash the filter in warm water and mild detergent, then rinse and allow to dry.

•For paper filters, use compressed air to blow particles from it, if possible. The air should be blown from

the engine side of the filter. Tapping the filter element against a hard surface and brushing the pleats

using a soft brush may also help remove debris from the filter.

•For foam filters, place a few drops of clean engine oil on the filter then squeeze it a few times to spread

the oil through the filter material and remove any excess oil.

•It is recommended to clean the air filter cover and air intake assembly of any dirt, cuttings etc.

Removal/Installation

To remove the air filter:

1. Depending on model, the air filter cover (A) may be secured using a screw (B), or clips (C) into position.

If the cover has a screw, loosen it (rotate left) and remove the cover from the air intake assembly. If the

air filter cover is secured with clips, carefully release them – usually, you will need to press the tab of the

clip to release it. Carefully remove the air filter cover – some covers may hinge or have protrusions that

help locate it against the machine body.

2. Remove the filter element (D) – on some models, the air filter can be pulled out directly, other models

may require removal of another locating screw or clips.

To install the air filter:

1. Insert the air filter element, and ensure it is correctly positioned in relation to the air intake assembly as it

will seat and seal properly in one position only.

2. Re-install the filter cover, ensuring it is fitted properly against the engine and secure it with the screw

(rotate right and tighten by hand. Do not over-tighten), or clips.

A

C

B

A

D

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

Concrete Cut-off Saw – MX9500

Spark Plug

If the spark plug is damaged (cracked insulator, broken or eroded electrodes etc), replace it. •

Always use spark plugs of the correct "heat range" - see Specifications. • Depending on model, the

spark plug may be accessible directly, or may be located underneath the air filter cover.

The spark plug is used to ignite the air/fuel mixture inside the engine. The spark plug has electrodes on one

end and an electrical terminal on the other. The spark plug requires regular maintenance.

Cleaning and Gap Checking

The spark plug should be checked and cleaned as per the maintenance schedule.

1. Remove any carbon deposits on the spark plug (A) electrodes (B) with a wire

brush.

2. Clean the spark plug threads and the electrical terminal (C) on the top.

To check and adjust the spark plug "gap":

1. Use "feeler" or "thickness" gauges (X) to measure the existing gap. The gauge

must drag a little when being slid between the electrodes (2) – this means the

measurement is fairly accurate.

2. Adjust the gap to within specification (see Specifications). If the gap needs to be

reduced, gently tap the electrode as required. If the gap needs to be increased,

use pliers to gently pull the electrode as required.

3. Measure the gap again and ensure it is within the specified range before re-installing the spark plug.

Removal/Installation

1. Pull the electrical lead (A) and rubber boot (B) from the terminal on top of the spark plug (C). On some

models, the spark plug is accessible from underneath the air filter cover and/or underneath the air filter.

2. Clean the area around the spark plug so that no dirt or other material can enter the engine when the

spark plug is removed.

3. Use the spark plug tool (D) to remove the spark plug (rotate left).

To re-install the spark plug:

1. Place the spark plug in its hole and screw it in (rotate right) until "finger tight".

2. Use the spark plug tool to tighten the spark plug approximately one quarter turn (do not over-tighten).

3. Place the electrical lead over the spark plug terminal and push it down so that it connects firmly terminal.

4. Re-install the rubber boot and ensure that it is seated firmly against the machine body. Re-install any

other components (air filter, air filter cover etc) that were removed to access the spark plug.

A

B

X

C

A

B

C

D

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE POWERBLADE

Power Blade MX9500 User manual

Popular Saw manuals by other brands