Sealey SM2502 User manual

INSTRUCTIONS FOR
Mini Drilling/Milling Machine
SM2502
MODEL NO:
SM2502 - 1 - 201202

INSTRUCTIONS FOR:
MINI DRILLING/MILLING MACHINE
MODEL NO: SM2502
Thank you for purchasing a Sealey product. Manufactured to a high standard this product will, if used according to these instructions
and properly maintained, give you years of trouble free performance.
1. SAFETY INSTRUCTIONS
The use of symbols in this document is to attract your attention to possible danger. The symbols and warnings themselves do not eliminate any danger, nor are they substitutes for proper
accident prevention measures.
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS AND
CAUTIONS. USE THIS PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY
CAUSE DAMAGE AND/OR PERSONAL INJURY, AND WILL INVALIDATE THE WARRANTY. PLEASE KEEP INSTRUCTIONS SAFE FOR FUTURE USE.
1.2 GENERAL SAFETY
pWARNING! Disconnect the drilling/milling machine from the mains power, and ensure the cutting tool or chuck is at a complete standstill
before attempting to change accessories, service or perform any maintenance.
3Maintain the drilling/milling machine in good condition (use an authorised service agent).
3Replace or repair damaged parts. Use recommended parts only. Unauthorised parts may be dangerous and will invalidate the warranty.
3Locate the drilling/milling machine in a suitable area. Ensure the surface is flat and firm. Keep area clean and tidy and free from unrelated
materials, and ensure there is adequate lighting.
3Keep the drilling/milling machine clean for best and safest performance and check moving parts alignment regularly.
pWARNING! Before each use check that drill/chuck/cutting tool is secure and that it is not worn or damaged. If worn or damaged replace
immediately.
pWARNING! Keep guard and holding fixings in place, tight and in good working order. Check regularly for damaged parts.
A guard, or any other part, that is damaged must be replaced with a new one, to ensure that it operates properly and performs its intended
function, before the tool is used. The safety guard is a mandatory fitting where drilling/milling machine is used in premises covered by the Health &
Safety at Work Act.
3Remove adjusting keys and wrenches from the machine and its vicinity before turning it on.
pWARNING! Wear approved safety eye protection and, if oil mist is generated, respiratory protection.
3Remove ill fitting clothing. Remove ties, watches, rings and other loose jewellery and contain long hair.
3Keep hands and body clear of the work table when operating the drilling/milling machine.
3Maintain correct balance and footing. Ensure the floor is not slippery and wear non-slip shoes.
3Always clamp workpiece securely to the table or hold securely in a vice which is firmly mounted to the table. NEVER hold a workpiece by hand.
3Keep children and unauthorised persons away from the working area.
1.1. ELECTRICAL SAFETY
p WARNING! It is the responsibility of the owner and the operator to read, understand and comply with the following:
You must check all electrical products, before use, to ensure that they are safe. You must inspect power cables, plugs, sockets and any other
connectors for wear or damage. You must ensure that the risk of electric shock is minimised by the installation of appropriate safety devices.
A Residual Current Circuit Breaker (RCCB) should be incorporated in the main distribution board. We also recommend that a Residual Current
Device (RCD) is used. It is particularly important to use an RCD with portable products that are plugged into a supply which is not protected
by an RCCB. If in any doubt consult a qualified electrician. You may obtain a Residual Current Device by contacting your Sealey dealer.
You must also read and understand the following instructions concerning electrical safety.
1.1.1. The Electricity at Work Act 1989 requires all portable electrical appliances, if used on business premises, to be tested by a qualified
electrician, using a Portable Appliance Tester (PAT), at least once a year.
1.1.2. The Health & Safety at Work Act 1974 makes owners of electrical appliances responsible for the safe condition of those appliances
and the safety of the appliance operators. If in any doubt about electrical safety, contact a qualified electrician.
1.1.3. Ensure that the insulation on all cables and on the appliance is safe before connecting it to the power supply. See 1.1.1. and 1.1.2.
and use a Portable Appliance Tester.
1.1.4. Ensure that cables are always protected against short circuit and overload.
1.1.5. Regularly inspect power supply cables and plugs for wear or damage and check all
connections to ensure that none is loose.
1.1.6. Important: Ensure that the voltage marked on the appliance matches the power supply
to be used and that the plug is fitted with the correct fuse - see fuse rating at right.
1.1.7. DO NOT pull or carry the appliance by the power cable.
1.1.8. DO NOT pull the plug from the socket by the cable.
1.1.9. DO NOT use worn or damaged cables, plugs or connectors. Immediately have any faulty
item repaired or replaced by a qualified electrician. When a BS 1363/A UK 3 pin plug is
damaged, cut the cable just above the plug and dispose of the plug safely.
Fit a new plug according to the following instructions (UK only).
a) Connect the GREEN/YELLOW earth wire to the earth terminal E.
b) Connect the BROWN live wire to the live terminal L.
c) Connect the BLUE neutral wire to the neutral terminal N.
d) After wiring, check that there are no bare wires, that all wires have been correctly connected, that the cable outer insulation
extends beyond the cable restraint and that the restraint is tight.
Double insulated products, which are always marked with this symbol , are fitted with live (brown) and neutral (blue) wires only.
To rewire, connect the wires as indicated above - DO NOT connect either wire to the earth terminal.
1.1.10. Products which require more than 13 amps are supplied without a plug. In this case you must contact a qualified electrician to ensure that a
suitably rated supply is available. We recommend that you discuss the installation of an industrial round pin plug and socket with your electrician.
1.1.11. If an extension reel is used it should be fully unwound before connection. A reel with an RCD fitted is preferred since any appliance
plugged into it will be protected. The cable core section is important and should be at least 1.5mm2, but to be absolutely sure that the
capacity of the reel is suitable for this product and for others which may be used in the other output sockets, we recommend the use of
2.5mm2section cable.
FUSE RATING 5 AMP
Blue
Neutral
Wire
Yellow & Green
Earth Wire
Cable
Restraint
Brown
Live
Wire
SM2502 - 1 - 201202

The SM2502 is a bench mounted mini drilling/milling machine with a variable speed drive giving flexibility to handle most materials. The table
has T slots facilitating the securing of the work pieces. The machine is supplied with metric graduated compound scales. Complies with
Machinery Directive 98/37/EC and is fully CE approved. A 42 piece clamping kit is available as an optional extra, Model No.SM2502CK. The
machine is supplied with the accessories shown below. A stand is also available as an optional extra, Model No.SM3002ST. (Milling attachments
and drill bits are not supplied.) For a full range of accessories see Section 8 or contact your local Sealey dealer.
2. INTRODUCTION & SPECIFICATION
Spindle speed - Low range . . . . .0 to 1100 rpm + or - 10%
Spindle speed - High range . . . . .0 to 2500 rpm + or - 10%
T - slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12mm
Weight (Net/gross) . . . . . . . . . . . . . . . . . . . . . . . . .50/68kg
Packing size . . . . . . . . . . . . . . . . . . . .560 x 500 x 740mm
Specification:
pWARNING! DO NOT switch the drilling/milling machine on whilst the drill or cutting tool is in contact with the workpiece. Bring the drill or
cutting tool gradually to the workpiece. Avoid un-intentional starting of the drilling/milling machine.
7DO NOT force the drilling/milling machine to achieve a task it was not designed to perform.
7DO NOT allow untrained persons to operate the drilling/milling machine.
7DO NOT get the drilling/milling machine wet or use in damp or wet locations or areas where there is condensation.
pWARNING! DO NOT use drilling/milling machine where there are flammable liquids, solids or gases such as petrol, paint solvents, waste
wiping rags etc.
7DO NOT operate the drilling/milling machine if any parts are missing or damaged as this may cause failure and/or possible personal injury.
7DO NOT remove the safety guard whilst in use.
7DO NOT attempt to remove a workpiece until the drill or cutting tool has stopped rotating.
7DO NOT touch the workpiece close to the cut as it will be very hot. Allow to cool.
7DO NOT leave the drill or cutting tool operating unattended.
7DO NOT operate the drill or cutting tool when you are tired or under the influence of alcohol, drugs or intoxicating medication.
3When not in use switch the drilling/milling machine off and isolate from the power supply.
pWARNING! At least two people will be required to
move the machine. Observe good lifting practice.
3.1. Unpack the product and check that all
components and tools are present and undamaged. If
any problem is noted contact your supplier immediately.
3.2 The machine has been coated with heavy grease
to protect it in shipping. Remove the coating with
commercial degreaser, kerosene or similar solvent
before operating. Avoid getting the solvent on rubber
parts. After degreasing coat the machined surfaces with
a medium consistency machine oil.
3.3 Mounting the machine. Locate the machine on a
flat, level and strong work surface. Do not locate in
direct sunlight or where heavy dust or moisture is
present.
3.4 Before finalising the mounting position consider
the full extent of travel of the longitudinal table leaving
clearance for the operators hand. Also consider access
to the column pivot bolt and the tilting of the column to
45Oin either direction.
Drill the location holes in accordance with the
dimensions shown in fig.2 and bolt the machine to the
bench using four M10 nuts and bolts. ( Not provided.)
Contents / accessories description:(fig.1)
lMini drilling/milling machine.
1. Large wrench
2. Drill chuck and taper shank
3. Oil can
4. Locking pin
5. 4 Hex keys (3,4,5,6mm)
6. Socket head wrench
7. 3 double ended spanners 8-10,14-17,17-19
8. Chuck key.
9. 2 Handles
10. T nuts
11. Fuse
12. Draw bar
fig. 1
fig. 2
Drilling capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . .13mm
Face Mill capacity . . . . . . . . . . . . . . . . . . . . . . . . . . 30mm
End Mill capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . 16mm
Headstock travel (Z) . . . . . . . . . . . . . . . . . . . . . . . 180mm
Cross axis (X) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mm
Longitudinal axis (Y) . . . . . . . . . . . . . . . . . . . . . . . .220mm
Spindle rotary angle . . . . . . . . . . . . . . . . . . . . . -45O/ +45O
Output power . . . . . . . . . . . . . . . . . . . . . . . . . . .350Watts
Spindle taper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MT3
3. CONTENTS & ASSEMBLY
SM2502 - 1 - 201202

p WARNING! Before operating the drilling/milling machine ensure you are wearing approved
safety goggles and gloves to protect you from swarf and metal particles. If using cutting oil or
coolant a face mask may be necessary to avoid breathing any vapour generated. Ensure that
all other safety instructions in section 1 are followed carefully.
4.0 SETTING UP FOR MILLING. (Disconnect the machine from the power supply while
setting up.) The machine is supplied without milling attachments. (See section 8 for details.) Contact
your local Sealey dealer for a full range of accessories.
4.1 Engaging vertical fine feed. Prior to milling, activate the fine feed wheel ( see fig.3-5 ) by pushing
the drill feed hub inwards toward the body of the machine so that the two sets of castellations on the
hub shaft engage together and lock the movement of the drill feed. ( See fig.4 ) This action
automatically engages the fine feed wheel. Set the depth stop to its maximum so that it does not
interfere with downward movement when setting the height of the milling tool. ( See fig.3-19 )
4.2 Mounting the Cutting Tool. If the drill chuck and arbor are currently mounted, remove them
by loosening the nut on the arbor bolt by two turns and giving it a tap with a rubber mallet.
(The arbor bolt appears at the top of the spindle shaft and can be accessed by pulling off the plastic
cap. See figs.3-4 and 4-A ) Ensure that the drill chuck and arbor are supported as they are removed.
4.2.1 Select the cutting tool for the work in hand and the appropriate arbor or collet. Wear
protective gloves at all times especially when handling the cutter. Introduce the cutter
assembly into the spindle sleeve and hold it in place whilst the arbor nut and bolt are tightened by hand.
Insert the locking pin provided into the hole in the right hand side of the head adjacent to the spindle
( See fig.4-D ) to prevent the spindle rotating. Tighten the arbor bolt with a spanner ( do not
overtighten ). Remove the locking pin and replace the plastic cap.
4.3 Attaching the workpiece. The main bed of the machine has 3 inverted T slots in it for
fixing the workpiece or any vice/clamping arrangement used to hold the workpiece. The
dimensions of the T slots and T nuts are shown in fig.5. A 42 piece clamping kit is available
as an optional extra. Part No. SM2502CK.
4. SET- UP AND OPERATION
fig. 3
fig.4
fig. 5
SM2502 - 1 - 201202

4.4 Setting and locking the cutter height. Once the workpiece is in place the rapid drill feed can be used to bring the cutter closer to
the workpiece but the final setting of the cutter height must be done with the fine feed wheel. To ensure accuracy during milling the
cutter height setting must then be locked by tightening the head lock lever. ( see fig.9 )
4.5 Locking table travel. To eliminate the possibility of inadvertently moving one feed whilst operating the other you should lock the table
feed not being used. To lock the longitudinal table tighten the longitudinal feed lock lever on the front of the table ( See fig.3-10 ). To
lock the cross feed table tighten the cross feed lock lever to be found on the right hand side of the saddle. ( See fig.3-12 ).
4.6 Setting the column angle. If required, the column carrying the head can be pivoted and locked at any angle between vertical and
45Oin either direction as indicated in fig.6. Before loosening the pivot bolt ( See fig.7 ) the weight of the column must be firmly supported,
preferably by a second person. Once the bolt is loose, lower the column to the required angle with reference to the scale provided and
fully tighten the bolt. WARNING. Support the column at all times during this procedure as once the pivot bolt is loose the head
could fall suddenly in either direction causing damage to the machine, associated equipment, or injury to persons.
fig. 6 fig. 7
4.7 Calibrated feed. Each feed wheel has an adjustable calibration ring situated on the feed shaft immediately behind the wheel. The
rings can be rotated by hand to the desired mark.
4.7.1 The calibration rings for each of the three feeds are marked in increments of 0.025mm. There are 60 increments to one full
rotation of each feed wheel. One full rotation of a feed wheel will advance the cutter 1.5mm. Each ring can be rotated allowing it to be
reset to zero or any mark required for a specific cut. The linear scales on the machine are marked in millimetres.
4.7.2 Avoid subjecting drills and cutting tools to excessive strain. Do not apply undue force on the handle in order to cut the workpiece.
Maintain a controlled cutting speed through the workpiece.
4.8 Safety Guard. After the workpiece has been fixed in place on the bed, but before switching on, ensure that the clear plastic guard
( See fig.3-8 ) is fixed in place.
4.9 Select high or low gear.The gear lever is situated on the left hand side of the head and selects either high or low gear.( see fig.8-D )
Select low gear (0 to 1100 rpm) by pushing the lever towards the back of the machine. Select high gear (0 to 2500 rpm) by pulling the
lever towards the front of the machine. WARNING! Do not attempt to change gear whilst the machine is operating as this will
result in damage to the gearbox. Only change gear when the machine is at a complete standstill. As a general rule of thumb
harder materials will require a lower milling/drilling speed. The speed is infinitely variable within each gear and is controlled by the
rotary knob on the control box. See the next section for detailed operation of the speed control.
4.10 Main ON/OFF switch with speed control and emergency shut off. Connect the machine to the mains power.
4.11 The rotary speed control must be set in the I position otherwise the machine will not start. If it is not in this position rotate the knob
anticlockwise until it clicks and stops. ( see fig.3-6 )
4.12 Release the emergency OFF switch cover by pushing the large button upwards to release the latch on the yellow housing. ( fig.3-20 )
Hinge the cover upwards to reveal the red off button for every day use. The green lamp under the rotary speed switch will now be
illuminated indicating that the machine can now be switched on. ( see fig.3-7 )
4.13 Rotate the rotary speed switch slowly clockwise. As the knob is turned a click will be heard and the motor will start. As the knob is
turned further the speed will increase. Set the knob to the desired speed.
4.14 Stop modes. There are three stop modes as described below.
(A). To stop the machine for a short while and then restart, simply return the rotary speed switch to the I position. When you are ready
to restart, rotate the switch clockwise to the desired speed.
(B) When the yellow emergency stop cover is open the machine can be stopped by pressing the smaller red stop
button within the yellow housing. When this button is used an orange reset light will illuminate on the side of
the switch box. This means that the rotary speed switch must be returned to the I position before you can
restart the machine.
(C) In an emergency hit the large red emergency button which automatically shuts the yellow
cover and cuts the electrical supply to the machine. Before the machine will start again the
rotary speed switch must be returned to the I position and the emergency switch cover must
be released by pushing the large red button upwards.
5.0 SETTING UP FOR DRILLING.
( Disconnect the machine from the power supply while setting up.)
5.1 Engaging rapid drill feed. The rapid drill feed is controlled with the three rods emerging
from the hub on the right hand side of the head. ( See fig.3-2 ) The rapid drill feed will not
operate if the vertical fine feed wheel used for milling is still engaged. To make the rapid
drill feed operative take hold of the central hub and pull it outwards to disengage the
castellations on the hubs central shaft. ( See also fig.4 )
5.2 Depth stop gauge. The depth stop gauge ( See fig.8-C ) consists of a lockable bar which can be slid up and down the main column
beneath the head. The depth stop can be set in relation to the graduated scale attached to the side of the main column. Alternatively,
set the drilling depth using the rapid drill feed then move the depth stop up to the head and lock it with the lever. ( see fig.8-A )
fig. 8
SM2502 - 1 - 201202

p p
WARNING! Ensure the drilling/milling machine is unplugged from the mains power supply before attempting any maintenance.
6.1 Lubricate the machine before every use. See lubrication points on fig.10.
6.2 Clean the machine after each use.
6.3 Clean and coat the cross lead screw with oil weekly.
6.4 Lubricate the bearing,worm and worm shaft monthly.
6.5 Check that the table is horizontal periodically.
6.6 Adjust the accuracy of the cross feed, longitudinal feed and head travel on a monthly basis. Any wear or slack
can be taken up by adjusting the position of the appropriate mitre strip. To do this use a hex key and spanner as
shown in fig.8. Adjust the longitudinal feed using the adjusters marked L in fig.7. Loosen the locking nuts on all
four adjusters and back them off. Advance the adjusters until they are felt to make firm contact with the mitre
wedge, ensuring that they are all tightened to the same torque. Operate the feed wheel to check the movement
of the bed but do not force the movement. Back off the adjusters by an eighth of a turn and tighten the locknuts.
Check that the table movement is smooth. If the movement is still tight, back the adjusters off a further eighth
turn and tighten the adjuster nuts.
6.6.1 Adjust the cross feed using the two adjusters marked C in fig.7.
6.6.2 Adjust the head movement using the four adjusters marked H in fig.9
6.6.3 Check that the column is vertical and that the column pivot nut is tight.
6. MAINTENANCE
Declaration of Conformity We, the sole importer into the UK, declare that the product listed below is in conformity with the following
EEC standards and directives.
The construction file for this product is held by the
Manufacturer and may be inspected, by a
national authority, upon request to Jack Sealey Ltd
For Jack Sealey Ltd. Sole importer into the UK of Sealey Quality Machinery
Signed by Mark Sweetman
Drilling/Milling Machine
Model SM2502
73/23/EEC Low Voltage Directive
89/336/EEC EMC Directive .
98/37/EC Machinery Directive
93/68/EEC CE Marking Directive 22nd November 2002
5.3 Mounting the chuck and arbor. If the milling cutter and arbor are currently mounted, remove them by loosening the arbor bolt by two
turns and giving it a tap with a rubber mallet. The arbor bolt appears at the top of the spindle shaft and can be accessed by removing
the cap. ( See fig.3-4 & 4-A ). Ensure that the milling cutter and arbor are supported as they are removed ( Wear protective gloves.)
Insert the chuck arbor into the bottom of the spindle shaft and retain it with the arbor bolt. Do not over tighten. The drill chuck is a
shallow taper fit onto the end of the drilling arbor. Using the chuck key open the jaws of the chuck until they withdraw inside the chuck
body. Place a piece of wood onto the bed and position the chuck on it below the spindle shaft. Using the drill feed, wind the spindle
shaft down until the arbor enters the chuck. Exert firm but not excessive downward pressure on the chuck to retain it on the arbor.
5.4 Drill bits. ( Not supplied ) Insert an appropriate drill bit into the chuck and tighten the chuck with the chuck key.
5.5 Attaching the workpiece. The main bed of the machine has 3 inverted T slots in it for fixing the workpiece or any vice/clamping
arrangement used to hold the workpiece. The dimensions of the slots are shown in fig.5 in order to choose appropriate fixings. A 42
piece clamping kit is available as an optional extra. Part No. SM2502CK.
5.6 Drilling guard. When drilling ensure that the guard is in place ( See fig.3-8 ).
5.7 Speed control and ON/OFF operation. Refer to Sections 4.9 to 4.14 for the operation of the main ON/OFF switch and speed setting.
fig. 7
fig.9
fig. 8
fig.10
SM2502 - 1 - 201202

www.sealey.co.uk
01284 757500 01284 703534 [e-mail]
NOTE: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior notice.
IMPORTANT: No liability is accepted for incorrect use of this equipment
WARRANTY: Guarantee is 12 months from purchase date, proof of which will be required for any claim.
INFORMATION: For a copy of our latest catalogue and promotions call us on 01284 757525 and leave your full name & address, including postcode.
Sole UK Distributor
Sealey Group,
Bury St. Edmunds, Suffolk.
7. TROUBLESHOOTING
8. OPTIONAL ACCESSORIES
SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION
Motor overheats / no power Feed is too fast. Decrease feed speed.
Faulty switch or motor. Replace faulty part. ( See parts list ).
Overload protection has operated. Return speed switch to I position and restart (See sec.4.10)
Spindle bearing getting hot. No lubrication. Apply grease.
Spindle bearing too tight. Loosen the bearing.
Unbalanced table travel. Excessive play in table movement. Adjust the mitre strips. ( Refer to section 6.6 ).
Cut depth too deep for cutting tool. Decrease the depth of the cut.
Spindle shakes during use. Spindle bearing gap is too wide. Reduce the gap or replace the bearing.
The chuck is loose. Re-seat the chuck in the arbor.
Cutter is blunt. Sharpen or replace the cutter.
Workpiece is loose. Secure the workpiece.
Vertical fine feed not functioning. Clutch is loose. Tighten the clutch.
Worm and worm shaft are worn. Replace worn parts. ( See parts list ).
Hand wheel fixing is loose. Realign and tighten fixing.
Drill feed still engaged. Push drill feed hub inwards (See section 4.1)
Web
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SM2502 - 1 - 201202
INDEXABLE CARBIDE END MILL
(MT3)
Part No. SM2502ICEM
QUICK VICE
(WIDTH 100MM)
Part No. SM2502QV
42 PIECE CLAMPING KIT
Part No. SM2502CK
COLLET (MT3)
(SINGLES AND SET)
SM2502C04 (DIAM 4MM)
SM2502C06 (DIAM 6MM)
SM2502C08 (DIAM 8MM)
SM2502C10 (DIAM 10MM)
SM2502C12 (DIAM 12MM)
SM2502C14 (DIAM 14MM)
SM2502C16 (DIAM16MM)
SM2502CSET (4 TO 16MM)
2 FLUTE HSS END MILL
(SINGLES AND SET)
SM2502EM04 (DIAM 4MM)
SM2502EM06 (DIAM 6MM)
SM2502EM08 (DIAM 8MM)
SM2502EM10 (DIAM 10MM)
SM2502EM12 (DIAM 12MM)
SM2502EM14 (DIAM 14MM)
SM2502EM16 (DIAM16MM)
SM2502EMSET (4 TO 16MM)
MILL CHUCK SET (MT3)
CHUCK DIAMETERS
4,6,8,10,12,14,16MM
Part No. SM2502MCS