Global Machinery Company DB305SMS, DB250SMS User Manual

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INSTRUCTION MANUAL

Double Bevel Slide
Compound Mitre Saw

with Dual Laser Line Generator

DB250SMS
DB305SMS

050805 ED05 PR

Contents

Full 2 Years Commercial and
Trade Use Warranty

Whilst every effort is made to ensure your complete
satisfaction with this tool, occasionally, due to the mass
manufacturing techniques, a tool may not live up to our
required level of performance and you may need the
assistance of our service department.

This product is warranted for a 2-year period for
commercial and trade use from the date of the original
purchase. If found to be defective in materials or
workmanship, the tool or the offending faulty
component will be replaced free of charge with another
of the same item. A small freight charge may apply.

The warranty replacement unit is only made available by
returning the tool to the place of purchase with a
confirmed register receipt. Proof of purchase is essential.
We reserve the right to reject any claim where the
purchase cannot be verified.

This warranty does not include damage or defects to the tool
caused by or resulting from abuse, accidents or alterations.

It also does not cover any bonus accessories unless the
tool is a GMC Platinum Professional model.

Please ensure that you store your receipt in a safe place

.
Conditions apply to the above warranty.
If you need direction of what constitutes a free of

charge warranty claim, please review the guide given on
the rear of the Receipt Holder. An indication is given as
to the types of claim that are permissible, and those
that are not.

Full 2 Years Commercial and
Trade Use Warranty

Description of symbols 3
Specifications 3
Safety rules for laser lights 4
General safety instructions 4
Additional safety rules for mitre saws 6
Accessories 8
Know your product 9
Unpacking 10
Transportation 10
Bench mounting 10
Stabiliser bar 10
Release knob 10
Slide lock 11
Mitre table lock 11
Bevel lock 11
Bevel adjuster 11
Clamp assembly 11
Spindle lock button 12
Rotating lower blade guard 12
Dust bag 12
Attaching the side bars 12
Trench depth adjustment 12
Turning on and off 13
Turning on the REDEYE® laser line generator 13
Setting the table square with the blade 13
Setting the fence square with the table 14
Changing a blade 15
Cross-cutting (without slide action) 17
Cross-cutting (with slide action) 18
Bevel cut 18
Compound mitre cut 19
Adjusting the laser lines 19
Using the laser line generator 20
Maintenance 21
Power cord maintenance 21
Cleaning 21
General inspection 21

2

Dear Customer

If you require any help with your product, whether it
is a Warranty claim, spare part or user information,
please phone our Help Line for an immediate response.
Phone [phone] in Australia or 0800 445 721 in
New Zealand.

Introduction

Your new GMC power tool will more than satisfy your
expectations. It has been manufactured under stringent
GMC Quality Standards to meet superior performance
criteria.

You will find your new tool easy and safe to operate,
and, with proper care, it will give you many years of
dependable service

.

CAUTION.

Carefully read through this entire Instruction

Manual before using your new GMC Power Tool. Take
special care to heed the Cautions and Warnings

.

Your GMC power tool has many features that will make
your job faster and easier. Safety, performance, and
dependability have been given top priority in the
development of this tool, making it easy to maintain
and operate

.

Dear Customer

If you require any help with your product, whether it
is a Warranty claim, spare part or user information,
please phone our Help Line for an immediate response.
Phone [phone] in Australia or 0800 445 721 in
New Zealand.

Introduction

Your new GMC power tool will more than satisfy your
expectations. It has been manufactured under stringent
GMC Quality Standards to meet superior performance
criteria.

You will find your new tool easy and safe to operate,
and, with proper care, it will give you many years of
dependable service

.

CAUTION.

Carefully read through this entire Instruction

Manual before using your new GMC Power Tool. Take
special care to heed the Cautions and Warnings

.

Your GMC power tool has many features that will make
your job faster and easier. Safety, performance, and
dependability have been given top priority in the
development of this tool, making it easy to maintain
and operate

.

Environmental protection

Recycle unwanted materials instead of
disposing of them as waste. All tools, hoses
and packaging should be sorted, taken to
the local recycling centre and disposed of
in an environmentally safe way.

Description of symbols

The rating plate on your tool may show symbols. These
represent important information about the product or
instructions on its use.

Wear hearing protection.
Wear eye protection.
Wear breathing protection.

Double insulated for
additional protection.

Conforms to relevant
safety standards.

WARNING. It may be more difficult to see the laser line in

conditions of bright sunshine and on certain surfaces.

Specifications
DB250SMS DB305SMS

Input power: 2400W 2400W

No load speed: 5000 RPM 5000 RPM

Blade size: Ø250mm x Ø16mm bore Ø305mm x Ø16mm bore

Number of teeth: 24 30

Mitre table angles: 0° to 52° left & right 0° to 52° left & right

Bevel cuts: 0° to 45° left & right 0° to 45° left & right

Straight cut

0° x 0°: 280mm x 80mm 305mm x 95mm

Mitre cut

45° (R) x 0°: 196mm x 80mm 215mm x 95mm

52° (R) x 0°: 170mm x 80mm 186mm x 95mm

45° (L) x 0°: 196mm x 80mm 215mm x 95mm

52° (L) x 0°: 170mm x 80mm 186mm x 95mm

Bevel cut

0° x 45° (R): 280mm x 27mm 305mm x 42mm

0° x 45° (L): 280mm x 52mm 305mm x 52mm

Compound mitre cut

45° (R) x 45° (R): 196mm x 27mm 215mm x 42mm

52° (R) x 45° (R): 170mm x 27mm 186mm x 42mm

45° (L) x 45° (L): 196mm x 52mm 215mm x 52mm

52° (L) x 45° (L): 170mm x 52mm 186mm x 52mm

3

Safety rules for laser lights

LASER LIGHT. LASER RADIATION

Do not stare into beam.

Only turn laser beam on when tool

is on work piece. Class 2 laser product

The laser light/laser radiation used in the GMC Redeye®
system is Class 2 with maximum 1mW and 400nm –
700nm wavelengths. These lasers do not normally present
an optical hazard, although staring at the beam may
cause flash blindness.

WARNING. Do not stare directly at the laser beam.

A hazard may exist if you deliberately stare into the beam,
please observe all safety rules as follows;

• The laser shall be used and maintained in accordance

with the manufacturer’s instructions.

• Never aim the beam at any person or an object other

than the workpiece.

• The laser beam shall not be deliberately aimed at

personnel and shall be prevented from being directed
towards the eye of a person for longer than 0.25s.

• Always ensure the laser beam is aimed at a sturdy

workpiece without reflective surfaces. I.e. wood or rough
coated surfaces are acceptable. Bright shiny reflective
sheet steel or the like is not suitable for laser use as
the reflective surface could direct the beam back at the
operator.

• Do not change the laser light assembly with a

different type. Repairs must be carried out by the laser
manufacturer or an authorised agent.

CAUTION. Use of controls or adjustments or performance

of procedures other than those specified herein may result
in hazardous radiation exposure.

Please refer to the relevant Australian standards, AS 2397
and AS/NZS2211 for more information on Lasers.

General safety instructions

To use this tool properly, you must observe the safety
regulations, the assembly instructions and the operating
instructions to be found in this Manual. All persons who
use and service the machine have to be acquainted with
this Manual and must be informed about its potential
hazards. Children and infirm people must not use this
tool. Children should be supervised at all times if they
are in the area in which the tool is being used. It is
also imperative that you observe the accident prevention
regulations in force in your area. The same applies for
general rules of occupational health and safety.

WARNING. When using power tools, basic safety

precautions should always be taken to reduce the risk of
fire, electric shock and personal injury. Also, please read
and heed the advice given in the additional important
safety instructions.

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:

• Contact with the blade.

• Kickback of workpiece and parts of workpiece.

• Blade fracture.

• Catapulting of blade pieces.

• Damage to hearing if effective earmuffs are not worn.

• Harmful emissions of sawdust when the machine is

used in closed rooms. Always use supplementary dust
extraction where possible.

• Do not use blades that are deformed or cracked.

• Always remove the plug from the mains socket before

making any adjustments or maintenance, including
changing the blade.

To ensure safe operation of the mitre saw you must follow
these guidelines –

• Select the correct blade for the material to be cut.

• Do not use the saw to cut materials other than those

recommended by the manufacturer.

4

• The mitre saw can be safely carried by the main handle

but only once it has been removed from the mains
power and secured in the locked down position.

• Do not use the saw without the guards in position, in

good working order and properly maintained.

• Ensure that the arm is properly secure when bevelling.

• Keep the floor area around the machine level, well

maintained and free of loose materials.

• Provide adequate lighting.

• Ensure that you are trained in the use, adjustment and

operation of the machine.

• Use correctly sharpened blades and observe the

maximum speed marked on the blade.

• Do not remove any cut-offs from the cutting area until the

guard is fully locked in place and the blade has come to rest.

• Ensure that the mitre saw is fixed to a bench wherever

possible.

• When cutting long pieces which extend well over

the table width ensure that the ends are adequately
supported at the same height as the saw table top.
Supports should be positioned in such a way to
ensure that the workpiece does not fall to the ground
once the cut has been made. A number of supports at
regular intervals may be required if the workpiece is
extremely long.

WARNING. When using power tools, basic safety

precautions should always be taken to reduce the risk of
fire, electric shock and personal injury. Also, please read
and heed the advice given in the additional important
safety instructions.

1. Keep the work area clean and tidy. Cluttered work

areas and benches invite accidents and injury.

2. Consider the environment in which you are working.

Do not use power tools in damp or wet locations.
Keep the work area well lit. Do not expose power tools
to rain. Do not use power tools in the presence of
flammable liquids or gases.

3. Keep visitors away from the work area. All visitors

and onlookers, especially children and infirm persons,
should be kept well away from where you are working.
Do not let others in the vicinity make contact with the
tool or extension cord.

4. Store tools safely. When not in use, tools should be

locked up out of reach.

5. Do not force the tool. The tool will do the job better

and safer working at the rate for which it was designed.

6. Use the correct tool for the job. Do not force small

tools or attachments to do the job best handled by a
heavier duty tool. Never use a tool for a purpose for
which it was not intended.

7. Dress correctly. Do not wear loose clothing or jewellery.

They can be caught in moving parts. Rubber gloves
and non-slip footwear are recommended when working
outdoors. If you have long hair, wear a protective hair
covering.

8. Use safety accessories. Safety glasses and earmuffs

should always be worn. A face or dust mask is also
required if the drilling operation creates dust.

9. Do not abuse the power cord. Never pull the cord to

disconnect the tool from the power point. Keep the cord
away from heat, oil and sharp edges.

10. Secure the workpiece. Use clamps or a vice to hold

the workpiece. It is safer than using your hand and
frees both hands to operate the tool.

11. Do not overreach. Keep your footing secure and

balanced at all times.

12. Look after your tools. Keep tools sharp and clean for

better and safer performance. Follow the instructions
regarding lubrication and accessory changes. Inspect
tool cords periodically and, if damaged, have them
repaired by an authorised service facility. Inspect
extension cords periodically and replace them if
damaged. Keep tool handles dry, clean and free from
oil and grease.

5

13. Disconnect idle tools. Switch off the power and

disconnect the plug from the power point before
servicing, when changing accessories and when the
tool is not in use.

14. Remove adjusting keys and wrenches. Check to see

that keys and adjusting wrenches are removed from
the tool before switching on.

15. Avoid unintentional starting. Always check that the

switch is in the OFF position before plugging in the
tool to the power supply. Do not carry a plugged in
tool with your finger on the switch.

16. Use outdoor rated extension cords. When a tool

is used outdoors, use only extension cords that are
intended for outdoor use and are so marked.

17. Stay alert. Watch what you are doing. Use common

sense. Do not operate a power tool when you are tired.

18. Check for damaged parts. Before using a tool, check

that there are no damaged parts. If a part is slightly
damaged, carefully determine if it will operate properly
and perform its intended function. Check for alignment
of moving parts, binding of moving parts, breakage of
parts, proper mounting and any other conditions that
may affect the operation of the tool. A part that is
damaged should be properly repaired or replaced by an
authorised service facility, unless otherwise indicated
in this Instruction Manual.
Defective switches must be replaced by an authorised
service facility. Do not use a tool if the switch does
not turn the tool on and off correctly.

19. Guard against electric shock. Prevent body contact

with grounded objects such as water pipes, radiators,
cookers and refrigerator enclosures.

20. Use only approved parts. When servicing, use only

identical replacement parts. Use an authorised service
facility to fit replacement parts.

WARNING. The use of an accessory or attachment, other

than those recommended in this Instruction Manual, may
present a risk of personal injury.

Additional safety rules for mitre saws

WARNINGS. Before connecting a tool to a power source

(mains switch power point receptacle, outlet, etc.) be sure
that the voltage supply is the same as that specified on
the nameplate of the tool. A power source with a voltage
greater than that specified for the tool can result in
serious injury to the user, as well as damage to the tool.
If in doubt, do not plug in the tool.

Using a power source with a voltage less than the
nameplate rating is harmful to the motor.

Your tool is double insulated for additional protection
against a possible electrical insulation failure within
the tool.

Always remove the plug from the mains socket before
making any adjustments or maintenance, including
changing the blade.

• When operating the saw, use safety equipment including

safety goggles or shield, ear protection, dust mask and
protective clothing including safety gloves.

• Ensure that there is adequate general or localised

lighting.

• Do not use the saw unless the guards are in place.

• Do not use the saw to cut metal or masonry.

• Do not let anyone under 18 years operate this saw.

• Ensure that the operator is adequately trained in the

use, adjustment and operation of the machine.

• Do not use this saw to cut firewood.

• Keep the area free of tripping hazards.

• Report faults in the machine, including guards and saw

blades, as soon as they are discovered.

• Ensure that the machine is always fixed to a bench,

whenever possible.

• Always stand to one side when operating the saw.

• Never use a cracked or distorted saw blade.

• When cutting round wood, use clamps that prevent the

workpiece from turning on both sides of the blade.

6

• Never use your hands to remove sawdust, chips or waste

close by the blade.

• Use only blades as recommended by the manufacturer

and which conform to EN 847-1.

• Do not use blades of High Speed Steel (HSS blades).

• If the table insert is damaged or worn, have it replaced

by an authorised service centre.

• Rags, cloths, cord and string and the like should never

be left around the work area.

• Avoid cutting nails. Inspect the workpiece and remove

all nails and other foreign objects before beginning
sawing.

• Support the work properly.

• Refrain from removing any cut-offs or other parts of the

workpiece from the cutting area whilst the machine is
running and the saw head is not in the rest position.

• Do not attempt to free a jammed blade before first

switching off the machine.

• Do not slow or stop a blade with a piece of wood. Let

the blade come to rest naturally.

• If you are interrupted when operating the saw, complete

the process and switch off before looking up.

• Periodically check that all nuts, bolts and other fixings

are properly tightened.

• Do not store materials or equipment above a machine in

such a way that they could fall into it.

• Always hold the saw on parts that are insulated. If you

accidentally cut into hidden wiring or the saw’s own cable,
the metal parts of the saw will become “live”. Switch off
at the mains and remove the plug immediately.
saw near combustible liquids or gases.

• Note the direction of rotation of the motor and the blade.

• Do not lock the movable guard in the open position and

always ensure that it is working properly, freely rotating
and returning to fully cover the teeth of the blade.

• Connect the saw to a dust collection devise and ensure

• Never

that it is operated properly. As the operator of the
saw, please make sure that you understand factors
that influence exposure to dust, including the type
of material to be machined, the importance of local
extraction and the proper adjustment of hoods/baffles/
shoots of your dust extraction system. We recommend
that you always wear a dust mask when operating
this saw.

• Wear gloves when handling saw blades and rough

materials.

• Saw blades shall be carried in a holder wherever possible.

• Select saw blades in relation to the material being cut.

• Use correctly sharpened saw blades and observe the

maximum speed marked on the blade.

• Take additional care when trenching (slotting).

• The mitre saw can be safely carried by the carrying

handle but only once it has been removed from the
mains power and secured in the locked down position.

• Ensure that the arm is properly secure when bevelling.

• Keep the floor area around the machine level, well

maintained and free of loose materials.

• Ensure that you are trained in the use, adjustment and

operation of the machine.

• Do not remove any cut-offs from the cutting area until

the guard is fully locked in placed and the blade has
come to rest.

• When cutting long pieces which extend well over the

table width, ensure that the ends are adequately
supported at the same height as the saw table top.
Supports should be positioned in such a way to
ensure that the workpiece does not fall to the ground
once the cut has been made. A number of supports at
regular intervals may be required if the workpiece is
extremely long.

Wear goggles
Wear earmuffs
Wear a breathing mask

7

Accessories

The GMC DB250SMS / DB305SMS Double Bevel Slide
Compound Mitre Saw is supplied with the following
accessories as standard:

• Saw blade (fitted)

• Workpiece clamp

• 6mm Hex key

• Side bars x2

• Stabiliser Bar

• Dust bag

• Instruction manual

• Receipt holder

8