HMT MAX100T User manual

USER MANUAL
HMT MAX100T
Magnetic Drilling Machine
SERIAL NO.____________
DATE OF PURCHASE __________
PLACE MACHINE MOTOR STICKER HERE

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Congratulations on your purchase of the HMT MAX100T Portable Magnetic Drilling Machine.
Your model is designed to produce superior holes quickly and efficiently. Through years of
experience, constant innovation and development, HMT is committed to provide you with
cutting tool innovation to speed up metalworking.
Before operating your new magnetic drilling machine, please read all instructions first. These
include
the Operator’s Manual and Warning Label on the unit itself. With proper use, care and
maintenance, your model will provide you with years of effective hole drilling performance.
TO REDUCE THE RISK OF INJURY USER MUST READ AND UNDERSTAND ALL
INSTRUCTIONS
Holemaker Technology Ltd (HMT)
OSC, The Forge
Wheelers Lane, Linton
Kent, ME17 4BN
United Kingdom
0044 (0) 1622 740812
[e-mail]
www.holemaker-technology.com

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Fig. 1

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Explanation of terms used and Pictograms marked on tool

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GENERAL POWER TOOL SAFETY WARNINGS
Do not use this power tool before you have thoroughly read and completely understood this
Instruction Manual and the “General Safety Instructions”, including the figures, specifications,
safety regulations and the signs indicating DANGER, WARNING and CAUTION.
WARNING: When using electrical tools basic safety precautions should always be
followed to reduce the risk of fire, electrical shock and personal injury including
following.
Please also observe the relevant national industrial safety regulations. Non-observance of
the safety instructions in the said documentation can lead to an electric shock, burns and/or
severe injuries.
This Operator’s Manual and the “General Safety Instructions” should be kept for later use
and enclosed with the power tool, should it be passed on or sold.
WORK AREA
1. Keep your work area clean and well lit. Cluttered benches and dark areas invite
accidents.
2. Do not operate magnetic drilling machine in explosive atmospheres, such as in the
presence of flammable liquids, gases or dust. Magnetic drilling machine may create
sparks which may ignite the dust or fumes.
3. Keep bystanders, children, and visitors away while operating a magnetic drilling
machine. Distractions can cause you to lose control.
ELECTRICAL SAFETY
1. Magnetic drilling machine plugs must match the outlet. Never modify the plug in any
way. Do not use any adapter plugs.
2. Avoid body contact with grounded surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock if your body is grounded.
3. Do not expose magnetic drilling machines to rain or wet conditions. Water entering a
machine will increase the risk of electric shock.
4. Do not abuse the cord. Never use the cord to carry the magnetic drilling machine or
pull the plug from an outlet. Keep cord away from heat, oil, sharp edges or moving
parts. Replace damaged cords immediately. Damaged cords increase the risk of
electric shock.
5. When operating a magnetic drilling machine, use an extension cord suitable for
outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
6. If operating a magnetic drilling machine in a damp location is unavoidable, use a
residual current device (RCD) protected supply. Use of an RCD reduces the risk of
electric shock. Conform to local or site specific regulations.
PERSONAL SAFETY
1. Stay alert, watch what you are doing and use common sense when using a magnetic
drilling machine. Do not use machine while tired or under the influence of drugs,
alcohol, or medication. A moment of inattention while operating magnetic drilling
machines may result in serious personal injury.

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2. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your
hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair
can be caught in moving parts.
3. Avoid accidental starting. Be sure switches are off before plugging in.
4. Never place hands, fingers, gloves or clothing near cutting area or rotating machine
parts.
5. Remove adjusting keys or switches before turning the machine on. A wrench or a key
that is left attached to a rotating part of the machine may result in personal injury.
6. Do not overreach. Keep proper footing and balance at all times. Proper footing and
balance enables better control of the magnetic drilling machine in unexpected
situations.
7. Use safety equipment. Always wear eye protection. Dust mask, non-skid safety
shoes, hard hat, or hearing protection must be used for appropriate conditions.
8. Always use supplied safety chain during any work on non-horizontal components.
Mounting can release.
MACHINE USE AND CARE
1. When using the machine on non-horizontal surfaces, cutting paste or spray paste is
recommended. Do not use oil type liquids where oil can drip into the motor unit.
2. During machine operations, the annular cutter must be cooled and lubricated with
good quality cutting or lubrication oil. Remove the slug from the annular cutter after
each hole. Caution, the slug may be hot!
3. Use clamps or other practical way to secure and support the work piece to a stable
platform. Holding the work by hand or against your body is unstable and may lead to
loss of control.
4. Do not use machine if switch does not turn it on or off. Any tool that cannot be
controlled with the switch is dangerous and must be repaired.
5. Disconnect the plug from the power source before making any adjustments, changing
accessories, or storing the tool. Such preventive safety measures reduce the risk of
starting the tool accidentally.
6. When not in use, store Magnetic drilling machines out of reach of children and other
untrained persons. Tools are dangerous in the hands of untrained users.
7. Maintain machines with care. Keep cutting tools sharp and clean. Properly
maintained tools, with sharp cutting edges are less likely to bind and are easier to
control.
8. Check for misalignment or binding of moving parts, breakage of parts, and any other
condition that may affect the machine operation. If damaged, have the tool serviced
before using. Many accidents are caused by poorly maintained tools.
9. Use only accessories that are recommended by HMT for your model. Accessories
that may be suitable for one machine, may become hazardous when used on another
machine.
SERVICE
1. Tool service must be performed only by qualified repair personnel. Service or
maintenance performed by unqualified personnel could result in a risk of injury.
2. When servicing a tool, use only identical replacement parts. Follow instructions in the
Maintenance section of this manual. Use of unauthorized parts or failure to follow
Maintenance Instructions may create a risk of electric shock or injury.
3. When using this machine, you MUST wear ear and eye protection.

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ADDITIONAL SPECIFIC SAFETY RULES FOR MAGNETIC DRILLING MACHINES
•Keep your fingers well out of the drill area;
•Avoid touching the drilled core that is automatically ejected by the centering pin when
the working procedure is finished. Contact with the core when it is hot, or if it falls, can
cause personal injuries;
•Always use the drill guard. Before turning on machine ensure the guard is closed
securely;
•Always use the safety strap;
•The magnetic drilling machine is suitable for use on steel with a thickness starting
from 10 mm, with zero air gap between the magnet core surface and the mounting
surface. Curvature, coats of paint and surface irregularities will create an air gap.
Keep the air gap to a minimum;
•Always place the machine on a flat surface;
•Do not clamp the magnetic drilling machine on small or irregularly shaped objects;
•Always place the machine on a surface that is clear of shavings, chips, swarf and
surface dirt;
•Keep the magnet clean and free of debris and swarf;
•Do not turn on the machine until it has been mounted and installed according to these
instructions;
•Do not turn on the machine before having checked that the magnetic stand has been
tightened firmly to the mounting surface;
•Adjust the table so cutter does not extend into the work piece before drilling. Do not
perform any design, assembly or construction activities on the work piece while the
machine is turned on;
•Before turning on the machine, make sure the accessory has been mounted
correctly;
•Always use the recommended speed for the accessories and the material;
•Do not use the machine on the same work piece on which electric welders are being
used;
•Use only an appropriate cutting fluid. We offer a range of premium cutting oils and
lubricants which are specially developed and selected for optimum performance and
maximum tool life;
•Do not use liquid cutting fluids while drilling vertically or overhead. Dip the cutter in
cutting paste or apply an appropriate spray for these applications;
•Do not pour cutting fluid into the reservoir while it is mounted in the bracket. Do not
allow cutting fluid to enter the drill motor;
•Before use, ensure movable chuck guard operates properly; Use Guard to protect
user from flying chips and debris, and to protect from entry to moving spindle and
tool. Switch off motor to clear swarf build up during the cut.
•Ensure that metal chips or resinous residue cannot lead to blockage of the function;
•In case of jammed cutter disconnect the machine from the power supply, remove the
reason for the jam before turning on the machine again.
•Magnetic drills, pillar drills, and similar drill press equipment should have clear and
unambiguous emergency stop features in accordance with current CE Markings
and Directives
•Do not touch rotating tools, spindles, arbors or adaptors
•Do not place loose fitting gloves (especially Rigger Gloves), items of clothing, or
jewellery near rotating tools or machine spindles.

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•Safety chains or similar restraints should be used to prevent a magnet drill falling in
the event of a power cut to the electromagnetic base. Use extra caution with
generator power supply for this reason
•Wear approved Eye / Face guard, ear protection and hand protection at all times.
•Inspect cutting tools before use: Do not use the tool if cracks or damage is
observed on any part of the tool.
•Use cutting tools within the torque and RPM recommendations
•Inspect the cutting tool regularly for any signs of damage. Immediately replace the
tool if any damage is found.
•Before use, ensure the cutting tool is inserted securely into designated arbor,
adapter or socket.
•Be sure to disconnect power when handling cutting tools.
•Use Impact type cutting tools only with Impact rated sockets, extensions, adapters
& accessories.
•Risk assessment and method statements should be produced and followed by the
user at all times
•Metal swarf and chips produced should be assessed for potential cut hazards
•Excessive lubrication use should be assessed for potential slipping hazards,
especially on smooth or painted surfaces
•Position appropriate guarding to protect users and passers by from chips, debris
and entanglement hazards
•Slugs produced by annular cutters can become a hazard if they are allowed to fall
from height.
•Material, slugs, and swarf in recent contact with cutting tools can become very hot
RESIDUAL RISKS
In spite of the application of the relevant safety regulations and the implementation of safety
devices, certain residual risks cannot be avoided.
These are:
Impairment of hearing; Wear ear protection in areas with noise emissions > 80 db(A).
•Risk of personal injury from flying particles;
•Risk of burns due to accessories becoming hot during operation;
•Risk of personal injury due to prolonged use.

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POSITION Serial number
The Serial Number, which also includes the type of machine, the year and month of
manufacturing and identification number, is engraved on the frame, magnet and the motor
unit.
Example:
30 14 09 001
Model type
Year of Manufacture
Month of manufacture
Identification number
Package Contents
1 Magnetic drilling machine
1 Carrying case
1 Drill guard
3 Handles
1 Allen Key 2.5
1 Allen Key 3
1 Allen Key 4
1 Allen Key 5
1 Wrench
1 Lubrication system
1 Cutting oil
1 Safety chain
1 Operators manual
1 Exploded drawing
1 Safety Ear Protection
1 Safety Glasses
1 Safety Gloves

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TECHNICAL DATA HMT MAX100T
Emission values for sound and vibration
(Two-figure –specifications as per ISO 4871)
Sound emission
Measured A-weighted sound power level LwA (re 1 pW), in
decibels 100
Measuring uncertainty KwA, in decibels 3
A-weighted emission pressure power level measured at the
workplace LpA (re 20 μPa), in decibels 100
Measuring uncertainty KpA, in decibels 3
Vibration emission
Rated acceleration, in m/s² 0.5
Measuring uncertainty K, in m/s² 1.5
REMARK: The sum of the measured emission value and respective measuring inaccuracy
represents
the upper limit of the values that can occur during measuring.
Wear ear protection!
For measurement values obtained according to the respective product standard, see the last
page of this Instruction Manual.

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DESCRIPTION (fig. 1)
WARNING: Never modify the power tool or any part of it. Damage or personal injury
could result.
1. Safety Guard
2. Feed handle
3. Cooling system tank
4. Magnetic stand
5. Magnet switch
6. Motor switch
INTENDED USE
This magnetic drilling machine is intended for commercial use as a drilling machine for
drilling materials with a magnetizable surface using annular cutters and twist drill. Some
magnetic drills are also suitable for for tapping, countersinking and reaming in a weather-
protected environment using the application tools and accessories recommended by HMT
The magnetic drilling machine can be used horizontally, vertically or overhead.
INSTRUCTIONS FOR PUTTING INTO OPERATION
Please make sure that the contacting surface for the magnet is level, clean and rust-free.
Remove any varnish or primer. When working on materials that are not magnetizable,
suitable fixation devices, obtainable as accessories from HMT e. g. suction plate, vacuum
plate or pipe-drilling device must be used.
When working on steel materials with a material thickness of less than 12 mm, the workpiece
must be reinforced with an additional steel plate in order to guarantee the magnetic holding
power.
Check the machine for possible damage; Before using the machine, you must carefully
check protective devices or slightly damaged components to ensure they are operating
perfectly and as intended.
Check that moving are in perfect working order and do not jam and check whether parts are
damaged. All parts must be correctly installed and fulfill all conditions necessary to ensure
perfect operation of the machine.
Damaged protective devices and parts must be repaired or replaced according to
specifications by HMT of any authorized HMT dealer.
DO NOT use under wet conditions or in presence of flammable liquids or gases. This
magnetic drilling machine is a professional power tool.
DO NOT let children come into contact with the machine. Supervision is required when
inexperienced operators use this machine.
ELECTRICAL SAFETY
The electric motor has been designed for one voltage only. Always check that the power
supply
corresponds to the voltage on the rating plate.
Your HMT MAGNETIC DRILLING MACHINE is designed in class I (grounded) according to
EN 61029-1. Earth wire is required.

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If the supply cord is damaged, it must be replaced by a specially prepared cord available
through the HMT service organization.
EXTENSION CABLE
If an extension cable is required, use an approved 3-core extension cable suitable for the
power input of this tool (see technical data).The minimum conductor size is 1.5 mm²; the
maximum length is 30 meter. When using a cable reel, always unwind the cable completely.
ASSEMBLY AND ADJUSTMENTS
WARNING: To reduce the risk of injury, turn unit off and disconnect machine from
power source before installing and removing accessories, before adjusting or
changing set- ups or when making repairs. Be sure the switch is in the OFF position.
An accidental start-up can cause injury.
PREPARATION OF THE MACHINE (FIG. 1)
1. Assemble the feed handle.
2. Mount the drill guard.
3. Fit the lubrication system as necessary.
4. Place the machine on a clean, level and solid surface. Remove any particles that will
obstruct full contact between the magnetic stand and the mounting surface.
5. Fit the safety chain (in vertical or overhead drilling applications).
MOUNTING THE DRILL GUARD (FIG. 1)
The guard protecting against chippings and accidental contact must always be mounted
during operation.
1. Hold the guard in front of the magnet, aligning the slots in the guard with the holes in
the magnet.
2. Fit the screws into the hole located in the side of the magnet.
WARNING: Always use the safety guard.
FITTING THE LUBRICATION SYSTEM (FIG. 1)
The lubrication system can be used for horizontal drilling applications (the drill being used
vertically).
•Hold the cooling tank against the bracket on the slide and push it in its place.
•Connect the hose to the nipple on the spindle drive shaft.
In order to use the lubrication system, it must be filled with a sufficient amount of cutting fluid.
1. Make sure the flow regulator is closed;
2. Unscrew the cap;
3. Fill the container with cutting fluid;
4. Screw the cap back on.
WARNING: Do not use the lubrication system in vertical or overhead drilling
applications where a liquid oil can run down over the motor
FITTING THE SAFETY CHAIN/STRAP
1. Pass the safety chain through the opening near the grip;
2. Wrap the chain around the work piece;
3. Securely close the chain using the lock.
WARNING: Always use the safety chain/strap when using machine vertically and/or
upside-down..

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INSERTING AND REMOVING AN ACCESSORY
The tool holder accepts annular cutters with a 19,05 mm Weldon shank with one or more
flats.
WARNING: The teeth of a cutter are very sharp and can be dangerous.
1. In order to fit an annual cutter it is necessary to remove the guard (1);
2. Slide the pilot pin through the hole in the center of the cutter shank.
3. Insert the shank of the accessory as far into the tool holder as possible.
4. Tighten the two Allen screws with Allen key;
5. To remove the accessory, loosen the Allen screws and take out the cutter.
PRIOR TO OPERATION
Try a few simple projects using scrap material until you develop a “feel” for the machine.
OPERATION
Instructions for use
WARNING: Always observe the safety instructions and applicable regulations.
WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect
tool from power source before making any adjustments or removing/installing
attachments or accessories.
MAGNETIC BASE
Material of minimum 10 mm thickness is required for the magnet to work the best.
The attachment force generated by the magnet depends on various factors.
•Thickness of the material the magnet is placed on;
•Paint or coating of the material the magnet is placed on;
•Metal chips, oil or other dirt under the magnet.
Make sure that the magnet attaches tightly to the work piece before turning on the motor unit
of the magnetic drilling machine. HMT magnets have 2 coils; make sure that both coils are in
contact with the material. Do not connect any other machines to the electrical outlet the
magnetic drilling machine is plugged into, as it may result in the loss of magnetic force.
Always use the safety chain included. Drilling above your head can be dangerous and is not
recommended. The use of magnetic drilling machines on pipes, not-flat or non-magnetic
materials is not recommended without specialist attachments

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THE CONTROL PANEL
1. The L/R Switch- This switch controls the direction of the motor unit. L is left
hand rotation, R is right hand rotation
2. The Motor Switch- This switch is used to switch the MOTOR unit ON and OFF
3. The Magnet LED indicator –this shows the generated magnetic force
4. The Fuse holder with Fuse- This fuse holder hold the fuse type 5x20, F2A
5. The Potentiometer –this controls the running speed of the motor unit. Note a
lower position will decrease the power as well as the speed of the motor unit
6. The Magnet switch –This is used to switch the main power and also the
magnet ON and OFF.
In order to operate properly, the machine has to be turned on following the
following procedure
Activating the magnet.
Connect the machine to the mains/work piece. To activate the magnet, press the red
button (FIG 2-6) above. The switch will be lit Red. The LED indicator will be lit GREEN if
the generated magnetic force is deemed sufficient hold. When LED indicator turns to
RED there is not enough magnet force to hold and it is not safe to proceed to drilling or
similar operations. To deactivate the magnet, press the same buttong (FIG 2-6) again
Turning the Motor ON and OFF
The motor unit can only be switched on when the magnet is activated. To turn the motor
on, press the green button with the marking “I”(fig 2-2) to switch the motor off, press the
red button with marking “0” figure
Torque

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The MAX100T is equipped with an all-time electronic torque protection. It will stop the
motor unit when it gets overloaded. In that case just push the OFF switch to reset and
ON switch to start drilling again
Temperature
The ECO50T is equipped with an all-time electronic temperature protection. If the
temperature of the motor unit runs up to 70 Degree Celsius the motor unit will stop. After
a few minutes it can be started again, and it is recommended to run the motor unloaded,
with speed dial ( see 5. Potentiometer) set on 100% in order to allow the motor to cool
down
The Electronic Controls
On the side of the motor unit are the
variable electronic control wheels. The
blue wheel regulates the rotation speed,
and the red wheel regulates the torque
power of the motor unit
When drilling with larger diameter cutters
or demanding applications, start drilling
with the torque wheel in a low position to
prevent cutter damage. Increase the
power setting slightly when the machine
stops before the task is achieved. When
the machine stops because of torque
overload, prese the O then the I button on
the on/off switch to start drilling again (Fig
2-2)
4- Speed manual Gearbox
The MAX100T is equipped with a 4 speed gearbox. The 2 gear switches makes it possible to
chose 4 manual speeds. Also the MAX100T has the electronic controls as detailed above so
the speed can be varied within each gear speed.
It is important that the closest mechanical gear is selected first with the blue wheel set to
fastest speed, and after that the speed decreased by dialing down the blue wheel electronic
adjustment. It is recommended the blue wheel electronic speed control is kept above 50% to
prevent the armature overheating.
600RPM –left switch up, right switch down
For twist drills 1-16mm, Hole cutters to
26mm
370RPM –left switch up, right switch up
For twist drills 16-24mm, Hole cutters up to
27- 50mm
175RPM –left switch down, right switch
down
For Hole cutters 50-80mm, for reamers
and taps <14mm
110RPM –left switch down, right switch up
For Hole cutters 80-100mm, for reamers,
countersinking, tapping

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The above RPM is guide advice only as all workpieces and tooling have different parameters
and should be used in accord with manufacturer’s instructions. The wear condition,
lubricant, hardness of material can all affect the optimum RPM required
To select the other gear, turn of motor unit and main power. Push the black switch on the
side of the gearbox, and slide to other position. A slight turn of the shaft by hand while sliding
the black switch to the other position, can be necessary, to line up the gears inside. If the
gears are not lined up correctly, the switch will be in a slightly raised position. When correctly
set, the switch will sit flush in the recess
DRILLING A HOLE
Now that you have read the explanatory information and safety recommendations above, you
are ready to actually start drilling. Follow these 10 steps for best drilling result:
1 Use the tip of the pilot pin to determine the center of the hole to be drilled.
2 Turn the magnet on and verify that the drill is in the right position and that the machine is
pushed tight against the work piece.
3 If your machine is equipped with a auto coolant system, put open the valve to release
the oil. If your machine does not have a auto coolant system, fill the holes of the spindle
with oil.
4 Turn the motor on at the highest setting and allow it to run at full speed.
5 Turn the arms to start drilling. Apply only a slight pressure when the Annular Cutter touch
the metal. Do not push the Annular Cutter with force into the metal.
6 Apply a regular pressure while drilling. The drilling performance does not improve by
putting more pressure on the tool. Too much pressure will overload the motor and your
Annular Cutter will be worn sooner. Let the cutter do the job and give it time to cut
the metal!!!
7 Adjust the oil supply when necessary, if your drill does not have a auto coolant system,
stop drilling regularly, refill the holes of the spindle and continue drilling.
8 Apply less pressure when the drill cuts through the material.
9 Turn the arms to put the motor in highest position and turn off the motor unit.
10 Remove the burr, metal chips and clean the cutter and surface without getting injuries.
Caution : The metal piece drilled out can be sharp and very hot!!
DRILLING WITH ANNULAR CUTTERS
Annular cutters only cut material at the periphery of the hole, rather than converting the entire
hole to shavings. As a result, the energy required to make a hole is lower than for a twist drill.
When drilling with an annular cutter, it is not necessary to drill a pilot hole.
WARNING: Do not touch the cutter or the parts close to the cutter immediately after
operation, as they may be extremely hot and cause burns to the skin. Ensure nobody
is in the work area where the metal core is ejected.

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DRILLING CONDITIONS
The ease with which material can be drilled depends on several factors including tensile
strength and
abrasion resistance. Whilst hardness and/or strength is the usual criterion, wide variations in
machineability can exist among material showing similar physical properties.
The drilling conditions are dependent on requirements for tool life and surface finish. These
conditions are further restricted by the rigidity of the tool and the work piece, lubrication and
machine power available. The harder the material, the lower the cutting speed.
Some materials of low hardness contain abrasive substances leading to rapid cutting edge
wear at high speeds. Feed rates are governed by rigidity of set-up, volume of material to be
removed, surface finish and available machine power.
THREADING –The machine is equipped with a reversible direction of rotation and can also
be used for cutting threads. Process as follows (for cutting a standard Right hand thread)
•Drill/create a pilot hole which is the correct size for the required tap thread
•Switch of the machine (Fig 2-2) to fit the tap
•If possible, keep the machine in the same position
•Select the lowest gear (Fig. 4 and lowest speed (Fig 2-5) and set the direction of
rotation to clockwise (right = R) at switch (Fig 2-1)
•Switch on (Fig 2-2) the machine and set the tap into the drilled hole
•Guide the tap into the hole using the handles, without exerting excess force. Let the
tap pull itself through the cut with a light pressure on the handle
•Switch of (Fig 2-2) the machine (just before the tap is completely through the hole.
Allow for the extra rotation as the tap slows to a stop.
•Set the direction of rotation to anti-clockwise (Left = L) at switch (Fig 2-1)
•Switch on the machine (Fig 2-2) and allow the tap to thread itself backwards out of
the threaded hole in the work piece. Guide with a light pressure on the handles. Do
not let the tap push up (withdraw) the motor unit by itself
Countersinking/ Reaming. Due to the wide range of operating speeds, the machine can be
used for reaming or countersinking
LUBRICATION
IN HORIZONTAL APPLICATIONS
•Adjust the fluid flow as required using the flow regulator;
•Add more cutting fluid if the shavings (metal chips) become blue.
VERTICAL AND OVERHEAD APPLICATIONS
Dip the cutter in cutting paste or apply an appropriate spray.
LUBRICATING THE FEED TRAVEL
The feed travel should be lubricated periodically with grease to ensure smooth operation.
•Raise the motor unit to the highest position possible;
•Lubricate the dove-tail guide way at both sides;
•Lubricate the gear rack.
After repeated use, the gear rack may become loose. If necessary, adjust the 5 self-locking
set screws at the left side. Tighten screws in series until the gear rack moves freely in the
dove-tail guide but does not allow the motor to wobble.
Cleaning

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WARNING: Blow dirt and dust out of the main housing with dry air as often as dirt is
seen collecting in and around the air vents. Wear approved eye protection and
approved dust mask when performing this procedure.
WARNING: Never use solvents or other harsh chemicals for cleaning the non-
metallic parts of the tool. These chemicals may weaken the materials used in these
parts. Use a cloth dampened only with water and mild soap. Never let any liquid get
inside the tool; never immerse any part of the tool into a liquid.
Optional Accessories and tooling
WARNING: Since accessories and tooling, other than those offered by HMT, have
not been tested with this product, use of such accessories with this tool could be
hazardous. To reduce the risk of injury, only HMT recommended accessories and
tooling should be used with this product.
Consult your dealer for further information on the appropriate accessories.

HMT_MAX100T_V1
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MAINTENANCE
Your HMT power tool has been designed to operate over a long period of time with a
minimum of maintenance. Continuous satisfactory operation depends upon proper tool care
and regular cleaning.
CAUTION: To reduce the risk of injury, turn unit off and disconnect machine from
power source before installing and removing accessories, before adjusting or
changing set- ups or when making repairs. Be sure the switch is in the OFF position.
An accidental start-up can cause injury.
Just as every magnetic drilling machine with moving parts, your HMT magnetic drilling
machine also needs regular maintenance service. A few recommendations follow :
VISUALLY CHECK THE MACHINE FOR DAMAGE
Machine must be checked before operation for any signs of damage that will affect the
operation of the machine. Particular notice must be taken of the mains cable, if the machine
appears to be damaged it should not be used failure to do so may cause injury or death.
CAUTION: Clean all dirt, dust, metal chips and burrs of your magnetic drilling
machine
OPERATION OF THE MACHINE
The machines operation must be checked to ensure that all components are working
correctly. Replace any defective parts immediately. This prevents properly function parts
from being damaged.
CARBON BRUSHES
Brushes should be checked to make sure there is no abnormal wear present. This should be
checked at least once a week if used frequently. If the carbon brush has worn more than 2/3
the original length the brushes should be changed. Failure to do so may cause damage to
the machine.
CHECK MAGNETIC BASE
Before every operation the magnetic base should be checked to make sure that the base is
flat and there is no damage present. An uneven magnet base will cause the magnet not to
hold as efficiently and may cause injury to the operator.
CHECK MACHINES GREASE
The gearbox grease should be checked once a month to ensure all moving components are
covered to prevent wear. The grease should be changed at least once a year to ensure you
gain the best from the machine.
CHECK ARMATURE
This should be checked at least 1 per month to check that there are visual signs of damage
to the body or to the commutator. Some signs of wear will be seen on the commutator over a
period of time this is normal as this is the part that comes in contact with the brushes but any
signs of abnormal damage and the part should be replaced.

HMT_MAX100T_V1
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ADJUSTMENT OF SLIDE
An essential requirement of the machine is that the slide can move in a smooth and
controlled manner, free of lateral movement and vibration.
This situation can be maintained by periodic adjustment of the slide and is accomplished in
the following manner:
1. Place the machine in an upright position and, by means of the capstan, raise the slide
to its highest position. Clean the brass rail strips and apply a small amount of light
machine oil to the wear surfaces.
2. Commencing with the top screw, loosen both setting nut (#4 on spare part drawing)
with included wrench 8 and the setting screw (#5 on spare part drawing) with included
Allen key 2.5. Then gently feed in setting screw until slight resistance is encountered.
Follow your way down adjusting all setting nuts and screws.
3. Operate the slide up and down a few times to test the movement and make any
further necessary adjustments. Try to ensure that all the screws are exerting a
uniform pressure on the slide from top to bottom. A perfectly adjusted slide will
operate freely up and down without any sideways movement.
REPAIR, MODIFICATION AND INSPECTION
Repair, modification and inspection of HMT Magnetic drilling machines must be done by
HMT or an HMT authorized dealer. The spare parts list will be helpful if presented with the
machine to the HMT dealer for service when requesting repair or other maintenance.
HMT machines are constantly being improved and modified to incorporate the latest
technological advancements. Accordingly, some parts (i.e. part numbers and/or design) may
be changed without prior notice. Also, due to HMT’s continuing program of research and
development, the specifications of machines are subject to change without prior notice.