Nova NG-250 Instruction Manual

NG-250

255MM DOUBLE BEVEL
SLIDING COMPOUND MITRE SAW

INSTRUCTION MANUAL

PRODUCT CODE: 40066

CAUTION: Read the operating
instructions to reduce the risk of inquiry

2

ELECTRICAL SAFETY

WARNING! When using mains-powered

equipment, basic safety precautions,
including the following, should always
be followed to reduce risk of fire, electric
shock, personal injury and material
damage.

Read and understand the manual prior to
operating this tool.

Save these instructions and other documents
supplied with this tool for future reference.

The electric motor has been designed for
230V and 240V only. Always check that

the power supply corresponds to the voltage
on the rating plate.

Note: Double insulation does not take the
place of normal safety precautions
when operating this tool. The insulation
system is for added protection against
injury resulting from a possible electrical
insulation failure within the tool.

USING AN EXTENSION LEAD
Always use an approved extension lead
suitable for the power input of this tool.
Before use, inspect the extension lead for
signs of damage, wear and ageing.
Replace the extension lead if damaged or
defective. When using an extension lead on a
reel, always unwind the lead completely. Use
of an extension lead not suitable for the
power input of the tool or which is damaged
or defective may result in a risk of fire and
electric shock. It is recommended that the
extension lead is a maximum of 25m in
length. Do Not use multiple extension leads.

!

SAFETY WARNINGS

WARNING! Read all safety warnings and all

instructions. Failure to follow the warnings
and instructions may result in electric shock,
fire and/or serious injury. Save all warnings
and instructions for future reference. The term
“power tool” in the warnings refers to your
mains-operated (corded) power tool or
battery-operated (cordless) power tool.

SAFETY

Laser warning symbol.
Do not stare directly
into the beam.

Double insulated.

CAUTION: Read the operating
instructions to reduce the risk
of inquiry.

WEAR EAR MUFFS

The impact of noise can
cause damage to hearing.

WEAR A BREATHING MASK

Dust which is injurious to health
can be generated when working
on wood and other materials.
Never use the device to work
on any materials containing
asbestos!

WARNING: ALWAYS WEAR EYE
PROTECTION

Sparks generated during
working or splinters, chips and
dust emitted by the device an
cause loss of sight.

3

GENERAL SAFETY

WARNING! Read all instructions. Failure

to follow all instructions listed below may
result in electric shock, fire and/or serious
injury. The term “Power Tool”in all of the
warnings listed below refers to your mains
operated (corded) power tool or battery
operated (cordless) power tool.

!

1. WORK AREA SAFETY

a) Keep work area clean and well lit.

Cluttered and dark areas invite accidents.

b) Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power

tools create sparks which may ignite the dust
or fumes.

c) Keep children and bystanders away
while operating a power tool. Distractions

can cause you to lose control.

2. ELECTRICAL SAFETY

a) Power tool plugs must match the outlet.
Never modify the plug in any way. Do
not use any adapter plugs with earthed
(grounded) power tools. Unmodified plugs

and matching outlets will reduce risk of
electric shock.

b) Avoid body contact with earthed
or grounded surfaces such as pipes,
radiators, ranges and refrigerators.

There is an increased risk of electric shock if
your body is earthed or grounded.

c) Do not expose power tools to rain or wet
conditions. Water entering a power tool will

increase the risk of electric shock.

d) Do not abuse the cord. Never use the
cord for carrying, pulling or unplugging the
power tool. Keep cord away from heat, oil,
sharp edges or moving parts. Damaged or

entangled cords increase the risk of electric

e) When operating a power tool outdoors,
use an extension cord suitable for outdoor
use. Use of a cord suitable for outdoor use

reduces the risk of electric shock.

f) If operating a power tools in a damp
location is unavoidable, use a residual
current device (RCD) protected supply.

Use of an RCD reduces the risk of electric
shock.

3. PERSONAL SAFETY

a) Stay alert, watch what you are doing
and use common sense when operating a
power tool. Do not use a power tool while
you are tired or under the influence of
drugs, alcohol or medication. A moment of

inattention while operating power tools may
result in serious personal injury.

b) Use safety equipment. Always wear
eye protection. Safety equipment such as

dust mask, non-skid safety shoes, hard hat,
or hearing protection used for appropriate
conditions will reduce personal injuries.

c) Prevent accidental starting. Ensure the
switch is in the off position before plugging
in. Carrying power tools with your finger on

the switch or plugging in power tools that
have the switch on invites accidents.

d) Remove any adjusting key or wrench
before turning the power tool on. A wrench

or a key left attached to a rotating part of the
power tool may result in personal injury.

e) Do not overreach. Keep proper footing
and balance at all times. This enables better

control of the power tool in unexpected
situations.

f) Dress properly. Do not wear loose
clothing or jewellery. Keep your hair,
clothing and gloves away from moving
parts. Loose clothes, jewellery or long hair

can be caught in moving parts.

g) If devices are provided for the
connection of dust extraction and
collection facilities, ensure these are
connected and properly used. Use of these

devices can reduce dust related hazards.
Such preventive safety measures reduce the
risk of starting the power tool accidentally.

h) Store idle power tools out of the reach of
children and do not allow persons

4

up place, out of reach of children.

6. Do not force the tool. It will do the job better
and safer at the rate for which it was intended.

7. Use the right tool. Do not force small tools or
attachments to do the job of a heavy duty tool.
Do not use tools for purposes not intended; for
example, do not use circular saws to cut tree
limbs or logs.

8. Dress appropriately. Do not wear loose
clothing or jewellery, they can be caught in
moving parts. Rubber gloves and non-skid
footwear are recommended when working
outdoors. Wear protecting hair covering to
contain long hair.

9. Use safety glasses and hearing protection.

Also use face or dust mask if the cutting
operation is dusty.

10. Connect dust extraction equipment. If
devices are provided for the connection of dust
extraction and collection facilities ensure these
are connected and properly used.

11. Do not abuse the cord. Never carry the tool
by the cord or yank it to disconnect it from the
socket. Keep the cord away from heat, oil and
sharp edges.

12. Secure work. Use clamps or a vice to hold
the work. It is safer than using your hand and it
frees both hands to operate the tool.

13. Do not overreach. Keep proper footing and
balance at all times.

14. Maintain tools with care. Keep cutting
tools sharp and clean for better and safer
performance. Follow instructions for lubrication
and changing accessories. Inspect tool cord
periodically and if damaged have it repaired by
an authorized service facility. Inspect extension
cords periodically and replace, if damaged.
Keep handles dry, clean and free from oil and
grease.

15. Disconnect tools. When not in use, before
servicing and when changing accessories such
as blades, bits and cutters.

16. Remove adjusting keys and wrenches.

Form the habit of checking to see that keys and
adjusting wrenches are removed from the tool
before turning it on.

17. Avoid unintentional starting. Do not carry
a plugged-in tool with a finger on the switch.
Ensure switch is off when plugging in.

unfamiliar with the power tool or these
instructions to operate the power tool.

Power tools are dangerous in the hands of
untrained users.

i) Maintain power tools. Check for
misalignment or binding of moving parts,
breakage of parts and any other condition
that may affect the power tools operation.
If damaged, have the power tool repaired
before use. Many accidents are caused by

poorly maintained power tools.
j) Keep cutting tools sharp and clean.
Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are
easier to control;

k) Use the power tool, accessories and
tool bits etc., in accordance with these
instructions and in the manner intended
for the particular type of power tool, taking
into account the working conditions and
the work to be performed. Use of the power

tool for operations different from intended
could result in a hazardous situation.

5. SERVICE
a) Have your power tool serviced by
a qualified repair person using only
identical replacement parts. This will

ensure that the safety of the power tools is
maintained.

SAFE OPERATION

1. Keep work area clean. Cluttered areas

and benches invite injuries.

2. Consider work area environment. Do not
expose power tools to rain. Do not use power
tools in damp or wet locations. Keep work
area well lit. Do not use power tools where
there is risk to cause fire or explosion.

3. Guard against electric shock. Avoid body
contact with earthed or grounded surfaces
(e.g. pipes, radiators, ranges, refrigerators).

4. Keep away from children. Do not let
visitors touch the tool or extension cord. All
visitors should be kept away from work area.

5. Store idle tools. When not in use, tools
should be stored in a dry, high or locked

5

ADDITIONAL SAFETY RULES FOR TOOL

1. Wear eye protection.

2. Keep hands out of path of saw blade. Avoid

contact with any coasting blade. It can still cause
severe injury.

3. Do not operate saw without guards in place.
Check blade guard for proper closing before each
use. Do not operate saw if blade guard does not
move freely and close instantly. Never clamp or tie
the blade guard into the open position.

4. Do not perform any operation freehand. The
work piece must be secured firmly against the
turn base and guide fence with the vise during
all operations. Never use your hand to secure the
work piece.

5. Never reach around saw blade.

6. Turn off tool and wait for saw blade to stop
before moving work piece or changing settings.

7. Unplug tool before changing blade or servicing.

8. Always secure all moving portions before
carrying the tool.

9. Stopper pin which locks the cutter head down
is for carrying and storage purposes only and not
for any cutting operations.

10. Do not use the tool in the presence of
flammable liquids or gases.

11. Check the blade carefully for cracks or
damage before operation. Replace cracked or
damaged blade immediately.

12. Use only flanges specified for this tool.

13. Be careful not to damage the arbor, flanges
(especially the installing surface) or bolt. Damage
to these parts could result in blade breakage.

14. Make sure that the turn base is properly
secured so it will not move during operation.

15. For your safety, remove the chips, small
pieces, etc. from the table top before operation.

16. Avoid cutting nails. Inspect for and remove all
nails from the work piece before operation.

17. Make sure the shaft lock is released before the
switch is turned on.

18. Be sure that the blade does not contact the
turn base in the lowest position.

19. Hold the handle firmly. Be aware that the saw
moves up or down slightly during start-up and
stopping.

20. Make sure the blade is not contacting the
work piece before the switch is turned on.

21. Before using the tool on an actual work
piece, let it run for a while. Watch for vibration or
wobbling that could indicate poor installation or a
poorly balanced blade.

18. Use outdoor extension leads. When tool
is used outdoors, use only extension cords
intended for outdoor use.

19. Stay alert. Watch what you are doing. Use
common sense. Do not operate tool when you
are tired.

20. Check damaged parts. Before further use
of the tool, a guard or other part that is damaged
should be carefully checked to determine that it
will operate properly and perform its intended
function. Check for alignment of moving parts,
free running of moving parts, breakage of
parts, mounting and any other conditions that
may affect its operation. A guard or other part
that is damaged should be properly repaired
or replaced by an authorized service center
unless otherwise indicated in this instruction
manual. Have defective switches replaced by an
authorized service facility. Do not use the tool if
the switch does not turn it on and off.

21. Do not use other accessories. The use of
any accessory or attachment, other than those
recommended in this instruction manual may
present a risk of personal injury.

22. Have your tool repaired by a qualified
technician. This electric tool is in accordance

with the relevant safety requirements. Repairs
should only be carried out by qualified persons
using original spare parts, otherwise this may
result in considerable danger to the user.

23. This appliance is not intended for use by
persons (including children) with reduced
physical, sensory or mental capabilities, or

lack of experience and knowledge, unless they
have been given supervision or instruction
concerning use of the appliance by a person
responsible for their safety

24. Children should be supervised to ensure
that they don’t play with the tool.

25. If the supply cord is damaged, it must be
replaced by the manufacturer, its service agent

or similar qualified person in order to avoid a
hazard.

6

LASER SAFETY

This machine is equipped with a laser cutting
guide. This allows the operator to preview the
path of the blade through the work-piece.
The laser projects a beam when the switch
built into the top front of the carry handle is
operated.

Avoid direct eye contact with the laser
beam, and do not use on material that could
reflect the laser beam.

WARNING: Do not stare directly at the
laser beam. A hazard may exist if you
deliberately stare into the beam. Please
observe all of the following safety rules.

1. The laser beam must not be deliberately aimed
at people or animals, and must be prevented from
being directed towards the eyes of a person.

2. Always ensure that the laser beam is used only
on work-pieces that have non-reflective surfaces,
i.e. natural wood or matt surfaces etc.

3. Never exchange the laser module assembly for
a different type or class of laser.

4. Repairs to the laser module must only be
conducted by Nova Gear or their authorized agent.

5. The Laser Cutting Guide gives the operator
a useful indication as to the path of the blade.
However it should not be regarded as exact or as
a substitute for the accurate and careful marking
out of the work-piece.
Conducting a ‘dry run’ (the cutting head is lowered
with the machine disconnected from the power
supply), will confirm the actual entry position of
the blade into the work piece.

WARNING: The Laser unit fitted to this
tool is a class 2 with a maximum
radiation of 1mW and 650nm wavelength.

CLASS 2 LASER RADIATION
DO NOT STARE INTO THE LASER BEAM

!

!

22. Wait until the blade attains full speed before
cutting.

23. Stop operation immediately if you notice
anything abnormal.

24. Do not attempt to lock the trigger in the on
position.

25. Be alert at all times, especially during
repetitive, monotonous operations. Do not be
lulled into a false sense of security. Blades are
extremely unforgiving.

26. Always use accessories recommended in
this manual. Use of improper accessories such
as abrasive wheels may cause an injury.

27. Do not use the saw to cut other than wood,
aluminum or similar materials.

28. Connect miter saws to a dust collecting
device when sawing.

29. Select saw blades in relation to the material
to be cut.

30. Take care when slotting.

31. Replace the kerf board when worn.

32. Do not use saw blades manufactured from
high speed steel.

33. Some dust created from operation contains
chemicals known to cause cancer, birth defects
or other reproductive harm. Some examples of
these chemicals are:

• lead from lead-based-painted material and,

• arsenic and chromium from chemically-

treated lumber.
Your risk from these exposures varies,
depending on how often you do this type
of work. To reduce your exposure to these
chemicals: work in a well ventilated area and
work with approved safety equipment, such as
those dust masks that are specially designed to
filter out microscopic particles.

34. To reduce the emitted noise, always be sure
that the blade is sharp and clean.

35. The operator is adequately trained in the
use, adjustment and operation of the machine.

36. Use correctly sharpened saw blades.
Observe the maximum speed marked on the
saw blade.

37. Refrain from removing any off cuts or other
parts of the work piece from the cutting area
whilst the tool is running and the saw head is
not in the rest position.

7

INTENDED USE

This product is a double bevel sliding
compound mitre saw and has been designed
to be used with special TCT blades. Only use
accessories designed for use in this machine
and/or those recommended specifically
for Nova Gear products. When fitted with an
appropriate blade this machine can be used
to cut:
› Wood
› Wooden products such as plywood,
chipboard, blockboard, hardboard, MDF etc.

You should always:
› Work in a well-ventilated area.
› Work with approved safety equipment, such
as dust masks that are specially designed to
filter microscopic particles.

TECHNICAL SPECIFICATIONS

SPECIFICATIONS NG-250 MITRE SAW

Product code 40066

Warranty 3 years

Power 1800W

Voltage / frequency 230-240V ~ 50Hz

No-load speed 4500 RPM

Maximum blade diameter 255mm

No. of teeth 40

Bore size 30mm

Kerf 3mm

Cutting capacity 0° 340mm x 80mm

Cutting capacity 45° (mitre) 340mm x 40mm

Cutting capacity 45° (bevel) 240mm x 80mm

Cutting capacity 45° (compound) 240mm x 40mm

Recommended max duty cycle 30 mins

Laser class 2

Weight 26kg

1

8

15

14

16

7

10

2

17

6

18

4

5

20

19

11

3

13

24

12

23

22

21

9

8

PRODUCT OVERVIEW

ACCESSORIES

1. Saw blade

2. Hold down clamp

3. RH side support bar (fitted)

4. LH side support bar (fitted)

5. Hex key

6. Wrench

7. Dust bag

IDENTIFICATION

1. Adjustable laser assembly

2. Laser light on/off switch

3. On/off trigger

4. Cutting handle

5. Carry handle

6. Upper blade guard

7. Rotating blade guard

8. Clamp assembly lock

9. Head locking pin

10. Blade

11. Dust bag

12. Bevel angle indicator

13. Fence

14. Mitre angle indicator

15. Mitre table

16. Table insert (kerf plate)

17. Mitre table lock

18. Safety guard release lever

19. Slide bars

20. Slide lock

21. Bevel lock knob

22. Bevel rotation handle

23. Side support bars

24. Support bar knob