FOR YOUR OWN SAFETY AND
OPTIMUM OPERATION READ
INSTRUCTION MANUAL BEFORE
OPERATING DRILL PRESS
RETAIN THIS MANUAL FOR
FURTHER REFERENCE.
Model: SB-250V
4/1/14
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TABLE OF CONTENTS
• Model specifications, uncrating and installation page 2
• Safety Precautions page 3 - 4
• Controls page 5
• Basic tapping instructions and tips page 6
• Operation instructions basic page 7
• Tool removal page 8
• Table adjustments page 9
• Spindle depth and feed operation page 10
• Proper drill speeds for materials and bit diameter page 11
• Rapid range change rpm chart page 12
• Machine maintenance page 13
• Parts diagram and parts list page 14-18
• Troubleshooting matrix page 19
• Electrical warning page 20
• Electrical diagram page 21
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MODEL AND SPECIFICATIONS
Machine Specifications: Model SB-250V
Drill Type Floor
Max. Tap Capacity 3/4
Max. Drill Capacity 1”
Spindle Taper MT3
Spindle Travel 5”
Max. Work Diameter 18”
Speeds (Step Pulley) 9
Spindle Speed Range 68-1381
Column Diameter 3-5/8”
Table 14 x 14”
Base 23-1/2 x 15”
Spindle to Table 28-1/4”
Spindle to Base 49-1/8”
Motor 2 HP
Voltage 110V
Overall Height 71”
Weight 422 lbs.
Uncrating and installation
1. Location of the drill press should be in a well-lit area with correct power supply.
2. Carefully uncrate machine from crate. Inspect all packing as not to throw out
any parts or manuals.
3. When transporting the machine please use caution. If using a sling have
someone steady the machine while transporting it.
4. Install your drill press on a sturdy level floor surface. The machine must be
anchored to the floor. Machine is top heavy.
5. Connect appropriate power to the machine (see electrical diagram last page of
manual). Make sure circuit breakers are suitable for the machine. Consult local
codes for proper installation of machine. Always route power cables in a safe
manner away from traffic areas, damp areas, heat and moving parts.
6. After installing the drill press, use a degreasing product to clean off the anti-rust
oil which was applied at the factory. Then wipe machined surfaces with a light
coating of lubricant oil. (Way oil)
7.
Check for damaged parts. Before further use of the machine, a guard or other part that
is damaged should be replaced or repaired. Carefully check to determine that it will operate
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properly and perform its intended function. Check for alignment of moving parts, binding of
moving parts. Breakage of parts or mountings and any other conditions that affect its
operation.
SAFETY
1. Keep guards in place and in working order.
2. Remove adjusting key and wrenches. Be in the habit of checking to see that keys and
adjusting wrenches are removed from tool before turning it on.
3. Keep work area clean. Cluttered areas and benches invite accidents.
4. Do not use in dangerous environments. Do not use power tools in damp or wet
locations or expose them to rain. Keep work area well light.
5. Do not force tool. It will do the job better and safer at the rate for which it was
designed.
6. Use the right tool. Do not force the tool, or use the machine to do a job for which it was
not designed.
7. Wear proper apparel. No loose clothing, gloves, necktie, rings or other jewelry to get
caught in moving parts. Non-slip footwear is recommended. Wear protective hair covering
to contain long hair.
8. Always use safety glasses. Also use face or dust mask if cutting operation is dusty.
9. Secure work. Use clamps or a vise to hold work. Do not hold part with hands.
10. Do not overreach. Keep proper footing and balance at all times.
11. Maintain tools with care. Keep tools sharp and clean for best and safest performance.
12. Disconnect drill press from power before servicing, when changing accessories such
as bits, cutter …etc.
13. Never stand on machine, or serious injury could occur.
14.
Never leave machine running unattended.
15.
Be sure drill bit or cutter tool is securely locked in the chuck. Do not hold part to be
machined in hand.
16.
Never place your fingers in a position where they could contact the drill or other cutting
tool if the work piece should unexpectedly shift.
17.
Never perform any operation by moving the head or table with respect to one another.
Do not switch machine on or start any operation before checking that the head and table
lock handles are clamped tight to column, and head and table support collars are correctly
positioned.
WARNING!!!
Extension cords and surge protectors are not recommended for this product.
Ground fault circuit interrupters (GFCI) should not be used. DO NOT TAMPER
WITH WIRING OR SETTINGS INSIDE THE FREQUENCY DRIVE.
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300168
82199
84605
84395
Do not open any cover or remove any guard without proper lockout of equipment.
Only a qualified electrician with proper PPE should perform electrical work on this
equipment.
Some components in this equipment may store electricity.
BEFORE USE, ALL SAFETY POINTS MUST BE READ AND UNDERSTOOD!
Operation of the drill press incorrectly, or in a dangerous
fashion can result in serious injury or death.
Operation of the drill press incorrectly, or in a
dangerous fashion can result in damage to machine or its
components and to the cutting tool.
Intend use:
The DRILL PRESS is designed to for drilling, boring
and tapping operations. Caution is required when
operating the drill press because it can be dangerous due to the high spindle
rotation speed. Operation hazards such as entanglement, shearing, ejection
parts ….etc. Guards such as pulley cover and chuck guard must in place and
working condition to prevent any hazard.
Please think about the safety warnings in the instruction manual before
operating the machine
Safety stickers
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Familiarize yourself with the controls before operating.
Emergency stop button
When this is pressed the power to the motor and controls is disconnected. The
frequency drive stores energy this will remain lit for about 20 seconds.
Spindle direction
Turn the spindle direction switch to the desired direction forward, reverse or stop. If
the emergency stop button is pushed or if the power is lost you will have to move
this to stop (TO RESET) then to desired spindle direction.
Stop
This is used when you would like the spindle to stop.
Forward
This is used for standard drilling and tapping operations
Reverse
This is used for left hand tapping and to retract a tap during tapping operations.
Spindle speed
The black dial in the upper right hand corner controls the spindle speed. This will
change the speed in forward and reverse directions.
Warning!!!
Avoid stopping the motor under load or stalling the motor. This could damage
the electrical components.
Emergency stop button
Spindle speed dial
Spindle direction dial
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Tapping operations using the reverse feature
1.
Drill the initial hole on the drill press for accuracy of diameter. If the diameter
is 1/2 inch or larger, drill a pilot hole about half that diameter first.
2.
Make sure the hole has a large enough chamfer. If the chamfer is too small
the tap will work a little hard when starting the tapping operation.
3.
Select the tap type. Choose from a taper tap (recommended), plug tap or
bottoming tap. The taper tap has several chamfer threads forming a tapered
cone on the inserting end. The plug tap has fewer chamfer threads and a
bottoming tap only has a couple chamfer threads.
4.
Match the tap size. Use the specified tap size to thread the hole diameter.
Taps that are sold with drill bits are size matched for you. The taps
themselves may show the hole size they’re intended for, but it’s likely to be
given in metric notation. Use a conversion chart to match this with the inch
fractions measuring drill bits.
5.
Cut the threads. Lubricate the tap with tapping fluid. Start the drill press and
lower the tap gently into the hole to be threaded. It only takes a few seconds
to tap a hole. When the tap gets to the desired depth reverse the direction of
the spindle and the tap will work its way out. As long as it has been set up
properly, the chances are good for success.
Tips for tapping
Tapping is a skill. It takes practice to do it well and to not break taps. If you’re
new to tapping, practice on sample stock before tapping into your actual
project
Materials have differing requirements for drill speed and lubrication. Hole
depths and diameters may present additional drilling requirements. Refer to
material charts for drilling specifications.
To show greater detail
Chuck guard is in the open position in POWER MUST BE OFF BEFORE
photos. CHUCK GUARD MUST IN MAKING ANY ADJUSTMENTS!
PLACE DURING OPERATION!
TURN POWER OFF! Before inserting
drill bits, chucks or arbors, always clean
out spindle hole and taper hole with a
clean cloth.
Open chuck jaws completely by turning
attached chuck key counter-clockwise
until the jaws are fully opened.
To install the chuck to the arbor tightly,
slide the chuck into the taper forcing it
into the spindle with by hand. Place a
block of wood on the table then lower the
spindle to make contact with the wood
and press the chuck tightly into the
spindles taper.
Install a taper shaft drill bit into the taper
the same way as you would the chuck. If
an adaptor is used it must fit the taper
correctly and the bit must fit snug in the
adaptor.
Installation of drill bits in the chuck:
A drill bit with a shaft of at least 1” long
should be used to allow correct chuck jaw
contact. If shaft length is less than 1” do
not insert bit as far into the chuck where it
allows jaw contact with drill flutes. Center
drill bit onto the chuck and tighten the
chuck securely with the chuck key.
• Never exceed the maximum diameter
bit size for the machine.
• Always wear appropriate clothing
while operating the drill press.
• All guards and interlocks must be in
place when operating the machine.
Wedge removal tool
Tooling removal:
Before removing the chuck or bit from the
machine; be sure the spindle has come to
a complete stop and power is off. If needed,
rotate spindle by hand to align the spindle
and quill openings. Insert the wedge
removal tool, while supporting the tooling,
and tap the wedge to remove the tooling.
Work holding:
When drilling directly on table surface, it is recommended that a
piece of wood or plywood be clamped securely to table under the
work piece. This will minimize splintering or burring as the drill breaks
through. It will help minimize drill bit and table damage.
Clamp the work piece to the table whenever possible. The table has
“T” slots that allow for many different clamping configurations.
When part cannot be affixed to the table a drill vise that is bolted in
place is recommended.
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Table lock Table height adjustment:
Table height adjustment is
accomplished by loosening the clamp
Bolt, then adjusting the table with the
bracket handle to desired height. After
table is at working height, retighten
the clamp bolt securely.
Note: Keep table adjustment rack
clean from debris. Never attempt to
move table with clamp bolt tightened.
Table handle
Table tilting adjustment:
Using an adjustable or box wrench,
loosen table level lock bolt. Carefully tilt
the table to the degree needed, as shown
on the angle index scale located on the
table rotation point. Retighten nut
securely.
Note: Never tilt table if any material or
fixturing is on it. Only make adjustments
when table is free of loose articles.
Table swing adjustment:
To swing the table up to 360 degrees,
loosen the clamp release bolt and swing
table to the desired position. After the
table is in the correct position tighten
clamp release bolt securely.
Note: Never swing table if any material or
fixturing is on it. Only make adjustments
when table is free of loose articles.
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ZERO
POINTS
SPINDLE DEPTH AND FEED OPERATION
MANUAL FEED HANDLE POSITION
Depth setting
Loosen the depth locking handle by turning it counter clockwise. When this is loose
you can turn the depth gauge to the desired depth.
DEPTH LOCKING HANDLE
DEPTH LOCKING GAUGE
AUTO FEED HANDLE POSITION
Zigzag line is for auto feed depth operations
Straight line is for manual depth feed operations
After setting depth tighten the depth locking handle.
Manual feed operation
With the spindle in operation and the feed handle in the manual feed position pull
the feed handle down making contact with the work material.
Auto feed operation
With the spindle in operation, pull the feed handle out away from the drill press as
shown above (auto feed handle position). The spindle will begin to feed down. The
faster the spindle rotates the faster the spindle will feed down. The slower the
spindle rotates the slower the feed rate. If you want to stop the feed down
movement move the feed handle to the manual position and the spindle will go back
up to the starting position.
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The proper drill speed for a given drill bit size is as on following table:
With the motor running (NOT ON THE HIGHEST SPEED), push or pull the range
change handle and at the same time change the adjustment handle to the desired
range. See chart below for ranges.
SB-250V RPM Chart
High
Frequency
10 120 101 68
20 234 200 112
30 350 291 197
40 465 387 263
50 580 483 328
60 695 580 400
70 811 675 465
80 926 771 530
90 1042 865 585
100 1157 964 615
110 1270 1061 713
120 1381 1155 776
Speed Middle
Low speed
High Torque
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2. MAINTENANCE OF MACHINE
MAINTENANCE
1. On a regular basis blow out any dust that may accumulate inside
the motor. (Frequency depends on environment the machine is
in)
2. A coat of automotive wax applied to the table and column will help
to keep the surface clean.
3. All of the ball bearings are packed with grease at the factory. They
require no further lubrication.
4. Periodically lubricate the gear and rack table elevation
mechanism, the spindle splines and the rack (teeth on the quill).
5. After each use the machine should be cleaned. Weekly
lubrication of all sliding or moving parts with light weight or way oil
is recommended. For your own safely, turn switch “OFF” and
remove plug from power source outlet before maintaining or
lubricating your drill press.
BELT TENSION ADJUSTMENT
Proper belt tension is approx. 10 lbs. of pressure or deflection of about 1/2 “
Hex bolt for mounting bracket 5/16-18 x 3/4 43314 2
washer for mounting bracket 5/16 flat 43632 2
Lock washer for mounting bracket 5/16 43644 2
Nut for mounting bracket 5/16-18 heavy 43911 2
Top mounting screws top bracket #10-24 x 1/2 43847 2
Nut for top mounting screws #10-24 43905 2
Screws self-tapping 43881 7
Connector cord 75151 2
Locknut conduit 1/2" 75257 2
number Quantity
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TROUBLESHOOTING GUIDE
Problem Possible Cause Remedy
Machine does not turn on Not plugged in Plug into proper receptacle
Frequency drive has error Clear error by turning off then back on
Too long or not correct extension
cord
Emergency stop button is activated Deactivate emergency button
Belt cover is operation Close belt cover
Noisy Operation Incorrect belt tension Adjust tension (page 8)
Loose Spindle or motor pulley
Spindle bearing worn Replace bearing
Chuck or Quill falls out Rust inhibitor, dirt, debris in or on
quill or spindle taper
Spindle does not move up or
down Belt broken or slipping
Debris in quill Clean quill and teeth
Feed depth adjustment is set see page 7 for adjustment
Spindle does not rotate Belt tension not tight enough Tighten belt tension page 8
Belt is broken or too worn Replace belt
Motor is not rotating Troubleshoot motor
Remove extension cord and plug directly
into receptacle
Check for wear or if pulley can be
tightened
Clean chuck and quill
Check belt for damage, Check for proper
belt tension page 8
Taper is slipping in spindle Clean chuck and quill
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ELECTRICAL WARNING
1. In the event of a malfunction or breakdown, grounding provides a path of
least resistance for electric current to reduce the risk of electric shock.
This machine is equipped with an electric cord having an equipment
grounding conductor. The proper plug must be used that is properly
installed and grounded in accordance with all local codes and
ordinances.
2. Do not modify the plug provided. If it will not fit the outlet, have the proper
outlet installed by a qualified electrician.
3. Improper connection of the equipment grounding can result in a risk of
electric shock. The conductor with insulation having an outer surface that
is green with yellow stripes is equipment grounding conductor. If repair or
replacement of the electric cord or plug is necessary, do not connect the
equipment grounding conductor to a live terminal.
4. Check with a qualified electrician or serviceman if the grounding
instructions are not completely understood, or if in doubt as whether the
machine is properly grounded.
5. It is not recommended to use an extension cord on this machine. If one
must be used, use only a grounded cord of proper size for machine and
length of run needed.
6. Repair or replace damaged or worn cords immediately.
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ELECTRICAL DIAGRAM
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