Operating Instructions — Parts Manual
20-Inch VS Drill Press
Models: 2221VS, 2223VS, 2232AC, 2234AC
Serial Number 201001 and greater
WHM TOOL GROUP
2420 Vantage Drive
Elgin, Illinois 60124
Ph.: 800-274-6848
Part No. 5510374
Revision D6 08/06
Copyright © WMH Tool Group
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Table of Contents
Cover Page....................................................................................................... 1
General Specifications ...................................................................................... 4
Operating Precautions ...................................................................................... 5
Operation and Set-up ........................................................................................ 7
Operating Controls ............................................................................................ 8
Maintenance ................................................................................................... 10
MachineAdjustments ...................................................................................... 11
Wiring Diagram ............................................................................................... 13
Troubleshooting............................................................................................... 15
Accessories.................................................................................................... 16
Replacement Parts.......................................................................................... 17
3
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General Specifications
The Wilton 20 Inch Variable Speed Drill presses
Models 2221VS, 2223VS, 2232AC, and 2234AC are
available in manual speed control or inverter speed
control configuration. Electrical power options are
single-phase, 115 and 220 volts, or 3-phase, 440
volts.
Specifications
Manual Speed Control Models
Inverter Speed Control Models
2221VS 2223VS
2232AC
2234AC
Drilling Capacity
Cast Iron.............................................. 1-1/4 In. ................. 1-1/4 In. ....................1-1/2 In. ................. 1-1/2 In.
Steel .................................................... 1 In. ....................... 1 In. ..........................1-3/8 In. ................. 1-3/8 In.
Spindle to Table (Max.) ................................. 32-3/8 In. ............... 32-3/8 In. ..................32-3/8 In. ............... 32-3/8 In.
Spindle to Base (Max.) ................................ 44-1/2 In. ............... 44-1/2 In. ..................44-1/2 In. ............... 44-1/2 In.
Spindle to Column (Max.) ............................ 10-7/16 In. ............. 10-7/16 In. ................10-7/16 In. ............. 10-7/16 In.
Motor
Rating.................................................. 2 hp, 1-Phase........ 2 hp, 3-Phase ..........2 hp, 3-Phase ....... 2 hp, 3-Phase
Voltage ................................................ 115/220 V .............. 220/440V ..................220V ...................... 440V
Pre-wired Voltage ................................ 115 V ..................... 220V ........................220V ...................... 440V
T-Slots (Table/Base)
Number ............................................... 2............................ 2 ..............................2............................ 2
Size ..................................................... 5/8 In. .................... 5/8 In. .......................5/8 In. .................... 5/8 In.
Column Diameter ........................................ 4-1/2 In. ................. 4-1/2 In. ....................4-1/2 In. ................. 4-1/2 In.
Spindle
Travel .................................................. 6 In. ....................... 6 In. ..........................6 In. ....................... 6 In.
Taper ................................................... MT-3 ...................... MT-3.........................MT-3 ...................... MT-3
RPM (Variable) .................................... 300-2000 ............... 300-2000 ..................65-2000 ................. 65-2000
Quill
Diameter ............................................. 3 In. ....................... 3 In. ..........................3 In. ....................... 3 In.
Travel .................................................. 6 in. ....................... 6 in. ..........................6 in. ....................... 6 in.
Table
4
Overall .................................................22x18-3/4 In........... 22x18-3/4 In. ............22x18-3/4 In. .......... 22x18-3/4 In.
Working Surface.................................. 18-1/8x14-3/4 ........ 18-1/8x14-3/4 ...........18-1/8x14-3/4 ........ 18-1/8x14-3/4
Travel .................................................. 32-3/8 In. ............... 32-3/8 In. ..................32-3/8 In. ............... 32-3/8 In.
Base
Overall .................................................26x19 In................. 26x19 In. ..................26x19 In. ................ 26x19 In.
Working Surface.................................. 15-1/4x12-1/16 ...... 15-1/4x12-1/16 .........15-1/4x12-1/16 ...... 15-1/4x12-1/16
Overall Dimensions
Length .................................................34-1/4 In. ............... 34-1/4 In. ..................36-5/8 In. ............... 36-5/8 In.
Width................................................... 27 In. ..................... 27 In. ........................27 In. ..................... 27 In.
Height .................................................. 77-1/4 In. ............... 77-1/4 In. ..................82-1/4 In. ............... 82-1/4 In.
Weight
Net ...................................................... 715 lbs.(325 kgs)... 715 lbs.(325 kgs) .....715 lbs.(325 kgs) ... 715 lbs.(325 kgs)
Gross .................................................. 803 lbs.(365 kgs)... 803 lbs.(365 kgs) .....792 lbs.(360 kgs) ... 792 lbs.(360 kgs)
1. All work shall be secured using either clamps or a vise to the drill press table. It is unsafe to use your hands
to hold any workpiece being drilled.
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- Misuse of this machine can cause serious injury.
- For safety, machine must be set up, used and
serviced properly.
- Read, understand and follow instructions in the
Operating Instructions and Parts Manual which
was shipped with your machine.
supply while servicing.
- Always follow instructions in Operating Instructions
and Parts Manual when changing accessory tools
or parts.
- Never modify the machine without consulting
Wilton Corporation.
When setting up machine:
You—the stationary power tool user—
hold the key to safety.
- Always avoid using machine in damp or poorly
lighted work areas.
Read and follow these simple rules for best results
and full benefits from your machine. Used properly,
Wilton’s machinery is among the best in design and
safety. However, any machine used improperly can
be rendered inefficient and unsafe. It is absolutely
mandatory that those who use our products be
properly trained in how to use them correctly. They
should read and understand the Operating Instruc-
tions and Parts Manual as well as all labels affixed to
the machine. Failure in following all of these warnings
can cause serious injuries.
- Always be sure the machine support is securely
anchored to the floor or the work bench.
When using machine:
- Always wear safety glasses with side shields (See
ANSI Z87.1)
- Never wear loose clothing or jewelry.
- Never overreach—you may slip and fall.
When servicing machine:
- Always disconnect the machine from its electrical
Machinery general safety warnings
1. Always wear protective eye wear when operating
power to the machine must be disconnected
before work is done.
machinery. Eye wear shall be impact resistant,
protective safety glasses with side shields which
comply with ANSI Z87.1 specifications. Use of
eye wear which does not comply with ANSI Z87.1
specifications could result in severe injury from
breakage of eye protection.
9. Maintain all machine tools with care. Follow all
maintenance instructions for lubricating and the
changing of accessories. No attempt shall be
made to modify or have makeshift repairs done to
the machine. This not only voids the warranty but
also renders the machine unsafe.
10. Machinery must be anchored to the floor.
11. Secure work. Use clamps or a vise to hold work,
when practical. It is safer than using your hands
and it frees both hands to operate the machine.
12. Never brush away chips while the machine is in
operation.
2. Wear proper apparel. No loose clothing or
jewelry which can get caught in moving parts.
Rubber soled footwear is recommended for best
footing.
3. Do not overreach. Failure to maintain proper
working position can cause you to fall into the
machine or cause your clothing to get caught —
pulling you into the machine.
5
13. Keep work area clean. Cluttered areas invite
accidents.
4. Keep guards in place and in proper working
order. Do not operate the machine with guards
removed.
14. Remove adjusting keys and wrenches before
turning machine on.
5. Avoid dangerous working environments. Do not
use stationary machine tools in wet or damp
locations. Keep work areas clean and well lit.
6. Avoid accidental starts by being sure the start
switch is “OFF” before plugging in the machine.
7. Never leave the machine running while unat-
tended. Machine shall be shut off whenever it is
not in operation.
15. Use the right tool. Don’t force a tool or attach-
ment to do a job it was not designed for.
16. Use only recommended accessories and follow
manufacturers instructions pertaining to them.
17. Keep hands in sight and clear of all moving parts
and cutting surfaces.
18. All visitors should be kept at a safe distance from
the work area. Make workshop completely safe
by using padlocks, master switches, or by
removing starter keys.
8. Disconnect electrical power before servicing.
Whenever changing accessories or general
maintenance is done on the machine, electrical
19. Know the tool you are using — its application,
limitations, and potential hazards.
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General electrical cautions
This drill press should be grounded in accordance with the National Electrical Code and local codes and
ordinances. This work should be done by a qualified electrician. The saw should be grounded to protect the
user from electrical shock.
Wire sizes
Caution: for circuits which are far away from the electrical service box, the wire size must be increased in
order to deliver ample voltage to the motor. To minimize power losses and to prevent motor overheating and
burnout, the use of wire sizes for branch circuits or electrical extension cords according to the following table is
recommended.
AWG (American wire gauge) number
Conductor length
240 volt lines
120 volt lines
0-50 feet
50-100 feet
Over 100 feet
No. 14
No. 14
No. 12
No. 14
No. 12
No.8
Safety Instructions for Drill Presses
handling any sharp objects or cutting tools. See
Figure A.
2. Drill press head and table shall be securely
locked to the column before operating the drill press.
This must always be checked prior to starting the
machine.
6. Always wear protective eye wear when operating,
servicing or adjusting machinery. Eyewear shall be
impact resistant, protective safety glasses with side
shields complying withANSI Z87.1 specifications.
Use of the eye wear which does not comply with
ANSI Z87.1 specifications could result in severe
injury from breakage of eye protection. Figure B.
3. Always use the correct tooling. Tooling shall
always be maintained and properly sharpened. All
tooling must be run at the proper speeds and feeds
as they apply to the job. Use only recommended
accessories and follow those manufacturers instruc-
tions pertaining to them. Tooling shall be not be
forced in to any workpiece but fed according to the
proper specifications. Failure to follow these
instructions will not only ruin the tooling as well as
the machine, but can cause serious injury.
7. When drilling in material which causes dust, a
dust mask shall be worn. See Figure C.
8. Avoid contact with coolant, especially guarding the
eyes.
4. Never brush away any chips while the machine
is in operation. All clean up should be done when
the machine is stopped.
9. Non-slip footwear and safety shoes are recom-
mended. See Figure D.
6
10. Wear ear protectors (plugs or muffs) during
extended periods of operation. See Figure E.
5. Keep hands in sight. Do not put hands or
fingers around, on, or below any rotating cutting
tools. Leather safety gloves should be used when
D
E
A
B
C
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Introduction
Operation and Set-up
This manual includes operating and maintenance
instructions for the Wilton Model 2221VS, 2223VS,
2232AC and 2234AC Variable Speed Drill Presses.
This manual also includes parts listings and illustra-
tions of replaceable parts.
Securing the Base
Wilton Model 2221VS and 2223VS drill presses
feature manual speed control. Models 2232AC and
2234AC have inverter speed control. This manual
contains procedures for both speed control versions.
The manual provides separate instructions when
differences in operation and maintenance exist.
The base of the drill press has four mounting slots;
two slots on both sides of the base. The drill press
should be level and rest solidly on the floor. Place
shims under the four mounting slots in the base as
needed to level the drill press.
When securing the base to the floor, apply even
torque to the fasteners to prevent distortion of the
base.
Refer to Figures 1 and 2 for key features of the drill
press.
Electrical
Control
Drive
Motor
Enclosure
Panel
(hidden, far
side)
Drill
Head
Head
Clamping
Control Panel
Speed
Adjustment
Nuts (2)
Speed
Shift Lever
Handwheel
Switch
Depth
Indicator
Spindle
Drive
Motor
Head
Clamping
Nuts (2)
Spindle
Handle
Depth
Indicator
Electrical
Enclosure
Column
Spindle
Column
Spindle
Handle
7
Work
Table
Work
Table
Base
Base
Mounting
Slots (4)
Mounting
Slots (4)
Figure 2: Drill Press Features
(Inverter Speed Control Model)
Figure 1: Drill Press Features
(Manual Speed Control Model)
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Raising the Drill Head and
Table
The drill press is shipped with the table and drill head
supported by wooden blocks near the bottom of the
column.
A selector switch is provided at the left side of the drill
head. The two-position switch is used to start and
stop the drive motor.
The head is raised to the operating position using a
strap and hoist, then secured to the column by
tighening the hex cap screw . The table is raised to
the desired position using the crank handle.
Speed Control Handle
CAUTION: TO AVOID DAMAGE TO THE SPEED
ADJUSTMENT MECHANISM, THE DRIVE MOTOR
MUST BE OPERATING BEFORE ATTEMPTING TO
ADJUST THE SPEED SETTING.
Electrical Connection
Refer to the Wiring Diagram section for wiring
information.
A speed control handle is provided on the front of the
head. The handle is turned clockwise to increase
spindle speed and counterclockwise to reduce speed.
To set the speed, the speed control handle is turned
until the pointer is at the desired speed.
Models 2221VS (manual control) and 2232AC
(inverter control) are pre-wired for 115 volts. Models
2223VS (manual control) and 2234AC (inverter
control) are pre-wired for 220 volts.
Connection of electrical power should be made by a
qualified electrician. Observe local electrical codes
when connecting the machine.
Inverter Speed Control - Models 2232 and
2234 (Refer to Figure 2)
Front Panel
Operating Controls
(Refer to Figures 3, 4, and 5)
Manual Speed Control -
The front panel is mounted on the front of the drill
head. The panel contains all the controls required to
operate the drill press. There are additional controls
Models 2221VS and 2223VS (See Figure 3)
Speed
Control
Spindle Selector Switch
A three-position selector switch is provided at the left
side of the drill head. It is used to select spindle rota-
tion: reverse (REV), off (OFF), and forward (FWD).
Handwheel
Speed Control Hand Wheel
8
CAUTION: TOAVOID DAMAGE TO THE SPEED
ADJUSTMENT MECHANISM, THE DRIVE MOTOR
MUSTBE OPERATING BEFOREATTEMPTING TO
ADJUSTTHE SPEED SETTING.
A speed control hand wheel is provided on the left
front of the head (refer to Figure 3 for location). The
handle is turned clockwise to increase spindle speed
and counterclockwise to educe speed. To set the
speed, the speed control handle is turned until the
pointer on the front panel is at the desired speed.
Drive
Motor
Switch
Figure 3: Control Panel (Manual Speed Control)
Speed Indicator
An LED spindle speed indicator is provided on the
front panel. The LED indicates speeds from 300 to
2000 rpm.
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Drilling Speed Chart
Inverter Speed Control -
Models 2232AC and 2234AC (See Figure 4)
A DRILLING SPEED CHART is provided on the front
panel. The chart can be used to select the speed
required for various drill sizes (0.196 inch to 1.000
inch — 5 mm to 25 mm) and materials (steel, cast
iron, aluminum, and copper). The chart defines
spindle speeds from 300 to 3000 RPM.
Spindle On Pushbutton Switch
The SPINDLE ON pushbutton (green) is used to start
the drive motor. To stop the motor, the pushbutton is
pressed (the switch toggles on and off).
Depth Indicator —
All Models (See Figure 5)
Emergency Stop Pushbutton Switch
The mushroom-shaped EMG. STOP pushbutton
switch provides a quick means of stopping the drive
motor.
A drilling depth indicator is provided on the front of
the drill head. The indicator can be set for depths up
to 6.5 inches (16.5 mm). A knurled knob is provided
at the at the front, underside of the head. Before
starting the motor, set the end of the drill against the
surface into which the hole is to be drilled. The
indicator is zeroed out using the knurled knob. The
motor is started and the hole drilled until the indicator
Inverter On Indicator
The INVERTER ON light (red) indicates that the
inverter is powered up.
RPM Display
pointer reaches the desired depth.
The spindle speed display shows the spindle rpm
selected by the spindle control knob (below).
Spindle Speed Knob
The SPINDLE SPEED knob is used to set the desired
spindle speed. The speed indicator to the right of the
SPINDLE SPEED knob displays the spindle speed
setting.
Depth
Scale
Emergency Stop
Pushbutton Switch
Indicator
Inverter
RPM Display
On Light
9
Figure 5: Depth Indicator
Spindle Direction
Selector
Speed
Control
Emergency Stop
Pushbutton
Drilling Speed Chart
Figure 4: Control Panel (Inverter Speed Control)
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Replacement of Motor
Maintenance
WARNING: MAKE SURE TO DISCONNECT
ELECTRICAL POWER TO THE DRILL PRESS TO
AVOID THE POSSIBILITY OF INADVERTENT
OPERATION AND EXPOSURE TO POTENTIALLY
LETHAL VOLTAGE LEVELS.
Replacement of Drive Belt
WARNING: MAKE SURE TO DISCONNECT
ELECTRICAL POWER TO THE DRILL PRESS TO
AVOID THE POSSIBILITY OF INADVERTENT
OPERATION AND EXPOSURE TO POTENTIALLY
LETHAL VOLTAGE LEVELS.
Manual Speed Control -
Models 2221VS and 2223VS
1. Remove drive belt (refer to Replacement Of
Drive Belt).
2. Disconnect electrical wiring from motor junction
box.
3. Remove nuts from mounting studs securing
motor to drill head. Remove motor.
4. Remove upper and lower pulleys and related
components from motor shaft.
5. Install upper and lower pulleys and related
components on replacement motor shaft.
6. Install motor on mounting studs and secure with
nuts.
7. Connect electrical wiring (refer to Wiring
Diagram section for wiring details).
8. Install drive belt (refer to Replacement Of Drive
Belt).
Manual Speed Control -
Models 2221VS and 2223VS
1. Start drill press. Set speed control to highest
speed. Stop drill press.
2. Disconnect electrical power by setting drill press
circuit breaker to OFF.
3. Remove head cover.
4. Remove belt. (With speed control setting at the
highest speed, the belt should be loose enough to
remove.)
5. Install the replacement belt. Install the head
cover.
6. Set the drill press circuit breaker ON.
7. Operate the drill press to verify correct operation.
9. Operate drill press to verify proper operation.
Inverter Speed Control -
Models 2232AC and 2234AC
1. Disconnect electrical power by setting drill press
circuit breaker to OFF.
Inverter Speed Control -
Models 2232AC and 2234AC
2. Remove pan screws from small cover (around
column). Remove pan screws and eight bolts
from head cover.
Refer to Replacement Of Drive Belt for instructions
for removal of the drive motor.
3. Loosen set screw and remove shift lever.
4. Remove plastic spindle cup.
5. Remove head cover. Leave small cover in place.
6. Disconnect electrical wiring from motor junction
box. Remove motor from mounting plate.
7. Remove motor mounting plate.
6. Remove three screws from pulley covers (discs).
Remove used belt. Install the replacement belt.
8. Install pulley covers and secure with three screws
in each pulley cover.
9. Install motor mounting plate. Install motor and.
connect electrical wiring (refer to Wiring
Diagram section for wiring details).
10. Install the head cover and secure with pan
screws and eight bolts.
Lubrication
Following are lubrication recommendations for drill
press components.
10
Manual Speed Control -
Models 2221VS and 2223VS
1. Spindle pulley drive: Lubricate spindle splines
occasionally with light grease.
2. Quill and column: Lubricate with light film of
oil.
3. Lift rack: Lubricate regularly with SAE 20 oil
(clean rack with kerosene before applying oil).
4. Variable drive:
11. Secure small head cover to head cover using pan
screws.
12. Set the drill press circuit breaker ON.
13. Operate the drill press to verify correct operation.
a. Speed control fork: service oil hole with
SAE 20 oil once a week.
b. Countershaft spindle and push rod:
lubricate with SAE 20 oil occasionally.
c. Speed control handle cam: clean and
grease with medium cup grease annually.
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Inverter Speed Control -
Models 2232AC and 2234AC
1. Spindle pulley drive: Lubricate spindle splines
occasionally with light grease.
2. Quill and column: Lubricate with light film of
oil.
3. Lift rack: Lubricate regularly with SAE 20 oil
(clean rack with kerosene before applying oil).
4. Variable speed drive:
WARNING: CHANGE THE RADIAL POSITION OF
THE DRILL HEAD ONLY IF THE DRILL PRESS
BASE IS SECURED TO THE FLOOR. SWINGING
THE DRILL HEAD WITHOUT THE BASE BEING
SECURED TO THE FLOOR WILL CAUSE THE
DRILL PRESS TO BECOME UNSTABLE AND TIP
OVER RESULTING IN INJURYAND/OR DAMAGE
TO THE MACHINE.
a. Periodically check oil level in sight gauge
on (left side of head) (refer to Figure 6).
b. If level is below centerline of sight gauge,
add oil.
c. To add oil, remove oil fill tube cover plate.
Pull fill tube out of hole in head cover.
d. Add SAE 20 oil to bring oil level up to the
centerline of the sight gauge.
Radial Adjustment of Head (All Models)
The radial position of the drill head can be changed
to accommodate the drilling of a hole that may be
offset from the center of the table. Reposition the drill
head as follows:
1. Loosen the two clamping hex nuts using the hex
socket wrench provided with the machine.
2. The swing the drill head to the desired position.
3. Tighten the two clamping nuts.
e. Put end of fill tube back through hole in
head cover. Install fill tube cover and
secure with two screws.
Adjustment of Speed Pickup
(Manual Models 2221AC and 2223AC)
1. Loosen screws securing speed pickup (ref. 56-
1) to bracket (ref. 56-2).
2. Adjust the speed pickup gap to approximately
1/8-inch.
Machine Adjustments
Table Adjustment (See Figure 7)
The table can be raised or lowered to accommodate
the height of the workpiece. To raise or lower the
table, loosen the table lock using the hand crank.
Then use the hand crank to move the table to the
desired height. Then lock the table in positon.
3. Operate drill press to verify that speed readout is
operating correctly.
(Inverter Models 2232AC and 2234AC)
1. Loosen screws securing speed pickup (ref.
68A) to bracket (ref. 70A) on drill head.
2. Adjust the speed pickup gap to approximately
1/8-inch.
HeadAdjustment
3. Operate drill press to verify that speed readout is
operating correctly.
Oil Fill Tube
11
Table Clamping Handle
Table Raising
Square Drives
Sight Gauge
Figure 6: Oil Level Sight Gauge and Fill Tube
Figure 7: TableAdjustment
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Operating Precautions
Feeds for Drilling
The following operating and safety precautions must
be observed in order to avoid harm to the operator or
damage to the drill press.
The feed of a drill is governed by the size of the tool
and the material drilled. Because the feed rate
partially determines the rate of production and also is
a factor in tool life, it should be chosen carefully for
each job. In general, the most effective feeds will be
found in the following ranges:
1.
The head assembly must be locked to the
column so the thrust produced by drilling will not
force the head assembly up the column.
The work table must be locked to the column so
it will not be forced down the column.
Before drilling, release the quill lock nut to
permit free travel of the quill.
2.
3.
4.
5.
6.
Diameter of Drill
(inches)
Feed per Revolution
(inches)
Under 1/8 .....................0.001 to 0.002
1/8 to 1/4 ......................0.002 to 0.004
1/4 to 1/2 ......................0.004 to 0.007
1/2 to 5/8 ......................0.007 to 0.015
Be sure the belt is tightened to the proper
tension.
DO NOT start to drill the workpiece until making
certain the workpiece is held down securely.
MAKE SURE THE DRIVE MOTOR IS RUN-
NING BEFORE turning the speed control
handwheel in either direction.
Indication of Extreme Speeds and Feeds
A drill that splits up the web is evidence of too much
feed or insufficient tip clearance at the center as a
result of improper grinding. The rapid wearing away
of the extreme outer corners of the cutting edges
indicates that the speed is too high. A drill chipping
or braking out at the cutting edges indicates that
either the feed is too heavy or the drill has been
ground with too much tip clearance.
7.
Point of operation protection is required for
maximum safety. This remains the responsibil-
ity of the user/purchaser since conditions differ
between jobs.
8.
9.
Make sure the drill is secured in the spindle or
check before attempting to use the drill press.
Make sure the spindle taper is clean and free of
burrs, scoring, and galling to assure maximum
gripping.
Speeds for High Speed Steel Drills
Speed
Material
10. Lock the quill in position when using and side-
loaded tool.
In SFPM
Alloy Steel — 300 to 400 Brinell ......................20 - 30
Stainless Steel .................................................30 - 40
Automotive Steel Forgings ...............................40 - 50
Tool Steel, 1.2C ...............................................50 - 60
Steel, .4C to .5C .............................................70 - 80
Mild Machinery Steel, .2C to .3C................... 80 - 110
Hard Chilled Cast Iron.....................................30 - 40
Medium Hard Cast Iron .................................70 - 100
Soft Cast Iron .............................................100 - 150
Malleable Iron .................................................80 - 90
High Nickel Steel or Monel ..............................40 - 50
High Tensile Bronze ....................................... 70 -150
Ordinary Brass and Bronze ........................ 200 - 300
Aluminum and itsAlloys .............................. 200 - 300
Magnesium and itsAlloys ............................ 250 - 400
Slate, Marble, and Stone ..................................15 -25
Plastics and similar material (Bakelite) ........ 100 - 150
Wood........................................................... 300 -400
TitaniumAlloys ................................................10 - 25
TitaniumAlloy Sheet ........................................50 - 60
Drilling Recommendations
Speeds for Drilling
The speed of a drill is usually measured in terms of
the rate at which the outer periphery of the tool
moves in relation to the work being drilled. The
common term for this is Surface Feet per Minute
(SFM). The relationship of SFM is expressed in the
following formulas:
12
SFM = 0.26 X rpm X Drill Diameter (in inches)
RPM = 3.8 x ________SFM__________
Drill diameter (in inches)
In general, the higher the speed the shorter the drill
life. Operating at the low end of the speed range for
a particular material will result in longer life. The most
efficient speed for operating a drill depends on many
variables:
1. Composition and hardness of material.
2. Depth of the hole.
3. Efficiency of the cutting fluid.
4. Type and condition of the drilling machine.
5. Desired quality of the hole.
In cases where carbon steel drills are applicable, the
drill should be run at speeds of from 40 to 50 percent
of those given above.
6. Difficulty of set-up.
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Wiring Diagram - Models 2221 & 2223
13
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Wiring Diagram - Models 2232AC & 2234AC
14
Sensor
AC Power
0
220
Volts
-
+
Input
3 Phase 220/440
LED Display Connection
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Troubleshooting
Problem
Possible Cause
Remedy
Spindle does not turn.
1. Motor overload protector tripped.
2. Circuit breaker tripped.
3. Branch circuit breaker tripped or fuse blown.
1. Press motor overload reset button.
2. Reset circuit breaker.
3. Reset branch circuit breaker/replace
fuse.
4. Open wire in switch circuit.
5. Defective switch.
4. Repair open circuit.
5. Replace switch.
6. Broken drive belt.
6. Replace drive belt.
Spindle noisy.
Drill stalls.
1. Damaged spindle bearings.
2. Worn spline.
1. Replace bearings.
2. Replace spline.
1. Worn drive belt.
1. Check condition of belt. Replace
if glazed or slipping on pulleys.
2. Excessive feed rate for size of drill and
material being drilled. No cutting fluid or
improper cutting fluid.
2. Reduce feed pressure or use cutting
fluid. Use correct cutting fluid.
Poorly drilled holes.
1. Drill dull.
1. Sharpen drill.
2. Lack of rigidity in hold-down method.
2. Check that all T-slot hold-downs are
tight and that table-lock and drill
head bolts are tight.
3. Speed too fast for material and drill size.
3. Check spindle speed recommen-
dations. Reduce speed if necessary.
4. Reduce feed rate.
5. Use cutting fluid, or change to
proper fluid or coolant for material
being drilled.
4. Feed too fast for material and drill size.
5. No or improper cutting fluid or coolant
being used.
6. Improperly ground drill bit.
1. Electrical circuit fault.
6. Check for proper angles and reliefs.
Regrind to proper geometry.
Motor overheating
1. Check current draw in circuit.
Make sure current draw is the
same as rating on motor plate.
2. Reduce drill size.
2. Oversize drill.
15
3. Excessive feed.
3. Reduce feed rate.
4. No cutting fluid, or wrong fluid.
4. Use correct cutting fluid for the
material and drill.
Table can not be
raised.
1. Lack of lubrication.
1. Lubricate.
No speed readout.
1. Speed pickup out of adjustment or failed.
1. Adjust gap between speed pickup
and post spindle pulley. If there is
no readout on the LED speed
indicator after adjusting the gap,
replace the speed pickup.
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Optional Equipment
Coolant System Installation
1. Remove the large reservoir cover plate from the
machine base. Tap 1/4-20 threads in the 4 pilot holes.
Install the cover plate back onto the machine base.
2. Insert the pump into the opening, utilize the
screws from the small round cover plate to fasten the
pump to the base.
5. Install the 3/8-inch hose barb to the coolant pump.
If needed apply a light coat of pipe sealant or Teflon
tape to the threads to prevent leakage.
6. Mount the flow valve to the bracket, connect the
supply hose to the pump and valve, use hose clamps
at the ends.
3. Position the power switch and valve bracket on the
spindle casting. Mark mounting hole locations and
drill holes. (Refer to Figure 8).
Note: Mount components near the lower edge of the
spindle casting. Do not mount componets above the
line shown in Figure 9.
7. Install the flexible nozzle to the flow valve.
8. Install the 1/2-inch hose barb to the worktable,
seal threads if needed. Connect the return hose.
9. Connect the power cord to a suitable source and
ground (refer to General Electrical Cautions).
10. Fill the reservoir with appropriate machining
coolant.
4. Install the power switch and valve bracket with the
provided fastener hardware.
Do not mount components
above this line.
Figure: 8 Suggested installation
16
Power switch - mounting
plate flush with bottom
edge of spindle casting.
Flow valve
mounting bracket.
Figure 9: Installation Detail
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Replacement Parts
This section provides exploded view illustrations that show the replacement parts for Wilton Model 2221VS,
2223VS, 2232AC, and 2234AC 20-Inch Drill Presses. Also provided are parts listings that provide part number,
description, and quantity. The item numbers shown on the illustration relate to the item number in the facing
page of the parts listing.
Separate exploded views and parts listings are provided for the drill heads for manual speed control drill presses
(Models 2221VS and 2223VS) and the inverter speed control drill presses (Models 2232AC and 2234AC). The
exploded view and parts listing for the drill press spindle components, and the table, base, and column apply to
all models.
Order replacement parts from:
WMH TOOL GROUP
2420 Vantage Drive
Elgin, IL 60124
Phone: 800-274-6848
Identify the replacement part by the part number shown in the parts listing. Be sure to include the model
number and serial number of your machine when ordering replacement parts to assure that you will receive the
correct part.
17
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Exploded View — Drill Head — Manual Speed Control
(Models 2221VS and 2223VS)
18
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Parts Listing — Drill Head — Manual Speed Control
(Models 2221VS and 2223VS)
Item Part
Item Part
No. Number
Description
Qty
No. Number
Description
Qty
58
59
60
5510126
5510129
5513678
Grip, Hand
Screw, Set
Assy., Pulley Cover (incl
60A,60B,60C,60D)
Bracket, Nameplate
Plate, Cover
1
1
1
7
8
9
10
11
5510077
5510078
5510079
5510080
5510081
Pulley, Spindle Step
Nut, Spindle
V-Belt
Pulley, Spindle, VS, Lower
Pulley, Spindle, VS, Upper
Screw, Cap
1
1
1
1
1
1
4
1
1
1
2
1
1
4
4
1
1
1
1
1
1
1
2
1
60A 5513679
60B 5513680
60C 5513681
60D 5513682
61
62
1
1
2
1
1
1
2
11A 5513673
11B 5513674
Screw, Cap
Nut, Hex
Bracket, Plate
Bearing, Thrust
Shaft
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
5510082
5510083
5510084
5510085
5510086
5510087
5510088
5510089
5510090
5510091
5510092
5510093
5510094
5510095
5510096
5510097
5510098
5510099
5510100
5510102
5510103
5510104
5510105
5510106
5510107
5510108
5510109
5510110
5510111
5512114
5512115
5510114
5510115
5510116
5510117
5512116
5513675
5513676
5510121
5510122
5510123
5510124
5513677
5510126
5510127
Bearing, Ball
Cover, Bearing
Lever, Speed Change
Bearing, Ball
Bushing
Bushing
Bolt, Hex
Washer
Housing, Bearing
Screw, Set
Shaft, Spindle Mid
Key
Key
C-Ring (Shaft)
Belt, Variable Speed
C-Ring (Shaft)
Cover, Spring
Spring
Pulley, Motor, VS, Lower
Key
Pulley, Motor, VS, Upper
Screw, Set
Bracket, Speed Change
Link
Shaft
C-Ring (Shaft)
C-Ring (Hole)
Bearing, Ball
Nut
Sleeve, Control Rod
Rod, Control
Pin Spring
Pin
Roller
Nut, Hex
Housing
Screw, Cap (M8x35)
Screw, Pan Head
Gear, Helix
Gear, Worm
Bearing, Thrust
Bushing
Set Screw
Wheel, Hand (includes #58)
Ring, Retaining
5510131
5510132
63A 5513683
64A
Screw, Cap
LED Display
115/230 LED Display
220/440 LED Display
Plate, Face
C-Ring (Hole)
Screw, Round Head
Knob
Set Screw (M3x8)
Cover
Screw
Motor 2hp 1ph 115/220V
Motor 2hp 3ph 220/440V
Key, Square
Washer, Flat
Nut, Hex
Switch, Fwd/Rev
1 Phase
3 Phase
Plate, Switch
Label
Cover, Label
Box, Switch
Screw
Nut, Hex
Screw
Strain Relief
Nut, Hex
5513519
5513736
65
66
67
76
77
78
79
80
5513690
5513685
5510137
5511848
5514634
5511849
5513354
5510344
5510345
1
1
4
1
1
1
2
1
1
1
4
4
1
80A 5517320
80B 5517321
80C 5517322
81
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
2
6
1
1
1
5517323
5517331
81A 5517324
81B 5517325
81C 5517326
82
83
84
85
1
1
1
1
2
4
4
2
2
1
1
1
1
1
5513356
5513357
5513358
5513359
19
86A 5517327
86B 5517328
87
88
89
90
91
5517329
5517330
5513935
5513934
Cord, Connection
Cord, Power
Assy., VS Spindle Pulley
Assy., VS Motor Pulley
Assy., Switch (includes
items 76-79,81-85)
1 Phase
5513355
5514716
3 Phase
1
1
1
1
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Exploded View — Drill Head — Inverter Speed Control
(Models 2232AC and 2234AC)
20
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Parts Listing — Drill Head — Inverter Speed Control
(Models 2232AC and 2234AC)
Item Part
Item Part
No. Number
Description
Qty
No. Number
Description
Qty
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
20
21
22
23
24
25
26
5517332
5510142
5510143
5510144
5510145
5510146
5510147
5510148
5510149
5510150
5510151
5510153
5510152
5510155
5510154
5510159
5517333
5510158
5510160
5510161
5510162
5510163
5510164
5510165
5510166
Casting, Head
Window, Oil
Bearing, Ball
Ring, Retaining
Gear (32T)
Key
Shaft, Drive (13T)
Bearing, Ball
Ring, Retaining
Bearing, Ball
Ring, Retaining
Gear (55T)
Screw, Set
Spring
Ball, Steel
Key
Plug, Drain, 3/8 NPT
Gear (18T)
Key
Shaft, Mid
Key
Ring, Retaining
Bearing, Ball
Pin1
Bar
Ring
Nut, Hex
Washer, Spring
Block, Speed Change
Bar, Gear
Screw, Set
Lever, Speed
Ring, Retaining
Seal, Oil
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
51-1 5517347
51-2 5517348
Housing, Bearing
Bearing, Ball, 6002ZZ
Key
Motor, 2hp, 3ph
220V
440V
Washer
Screw
Switch, E-stop
Proximity Switch, Speed
Bracket, Proximity Switch
Light, Indicator
Switch, Pump Selector
Switch, Forward/Reverse
Potentiometer, Speed Control
Switch, Pushbutton, Green
Screw
Panel, Control
Bracket, Plate
Screw, Pan Head
Cover, Oil Filler
Cover, Pulley
Plate, Top
1
1
1
1
52
53
5510192
5517349
5517350
5510194
5510195
5510204
54
55
56
4
4
1
1
1
1
1
1
1
1
4
1
1
2
1
1
1
1
1
2
2
2
6
4
2
2
1
4
4
4
1
1
1
1
1
1
1
1
1
4
4
4
4
4
1
56-1 5510197
56-2 5510198
57
59
60
61
62
63
64
5510201
5510199
5510200
5510196
5510202
5510206
5517351
64-1 5517352
65
66
67
5510209
5510210
5517353
67-1 5517354
67-2 5510213
67-3 5517355
67-4 5510215
67-5 5517356
67-6 5517357
67-7 5517358
67-8 5510214
Plate, Fixed
Plate, Fixed
Screw, Pan Head
Screw
Screw
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
26-1 5517334
27
28
29
30
31
32
33
34
35
36
37
38
39
40
5510167
5510168
5510169
5510170
5510171
5517335
5517336
5510173
5510177
5517337
5517338
5510178
5517339
5510180
Washer
Screw, Pan Head
Washer, Spring
Screw
Enclosure (w/door & latch)
Screw
68
69
70
71
72
73
74
5510216
5510217
5517359
5510219
5510220
5517360
5510222
Shaft, Gear (18T)
Nut, Hex
Bolt
Washer
Screw, Cap
Screw, Set
Cover (Top), Gearbox
Fitting, Fill, Oil
Tube, Fill
Seal, Oil
Bolt
Seal, Oil
Seal, Oil
Ring, Retaining
Screw, Set
Pulley, Drive
Pulley, Spindle, 48T
Belt, 720x8
Bolt, Hex, M6x30
Screw, Flat Head, M5x10
Washer, Flat, M6
Bracket
21
Relief, Cable
Relief, Cable
Cable, Electric
Cable, Electric
Cover, Window
Panel, Component Mounting
Board, Insulation
Fuse Block
Transformer
Washer
Screw, Pan Head
Screw, Cap
Washer, Lock
Nut, Hex
74-1 5517361
75 5510223
75-1 5517362
40-1 5517340
76
77
79
80
81
82
83
84
5510224
5517363
5510227
5510228
5510229
5517364
5517365
5517366
41
42
43
44
5510181
5510182
5510183
5510184
44-1 5517341
45
46
47
48
49
5510185
5510186
5517342
5517343
5510189
84-1 5517367
84-2 5517368
85
Inverter, Delta, M-type
220V, 3ph
440V, 3ph
49-1 5517344
50
51
5510233
5512670
5517345
5517346
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Parts Listing — Drill Head — Inverter Speed Control
(Models 2232AC and 2234AC)
Item Part
No. Number
Description
Qty
85-1 5517371
85-2 5517372
Washer, Flat
Screw
Sub-Panel
4
4
1
4
1
1
1
1
1
2
2
2
2
1
1
86
5517373
86-1 5517374
Screw
87
88
89
5510235
5517375
5510237
Terminal Block
Rail, Mounting
Contactor
Relay
Relay
89-1 5510238
90
94
95
96
97
98
99
5510240
5510242
5510243
5510244
5510245
5510246
Screw
Screw
Microswitch
Bracket, Microswitch
Rod, Microswitch Support
Electrical Enclosure Complete
220V, 3Ph
5514648
5514649
440V 3Ph
105
LED Display
115/220 LED Display
220/440 LED Display
Screw, Cap
1
5513519
5513736
106 5513683
107 5515285
2
1
Cap, Spindle
22
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Exploded View — Spindle Components (All Models)
23
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Parts Listing — Spindle Components (All Models)
Item Part
Item Part
No. Number
Description
Qty
No. Number
Description
Qty
1
2
5517332 Casting, Head
5517376 Bolt, Hex, Shoulder
1
2
2
2
2
1
1
1
1
2
1
1
1
1
1
1
1
1
3
1
1
1
1
1
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
3
1
1
1
67 5510285 Hub
68 5510286 Spoke
1
3
1
2
3
1
1
1
1
1
2
1
4
2-1 5517377 Spring
68A 5513515 Pickup, Magnetic
68B 5513687 Screw, Pan Head
69 5510287 Knob
69A 5517383 Plate,Adjustable
69B 5517384 Bracket, Mag. Pickup
69C 5513689 Screw, Cap
69D 5517385 Washer, Flat
69E 5517386 Nut, Hex
70 5517387 Screw
3
4
5
7
8
5517378 Rod, Cam Lock
5510250 Nut, Hex
5510251 Wrench, Hex Head
5510252 Screw, Set
5517379 Washer, External Tooth
10 5510253 Spindle
11 5510254 Bearing, Ball
12 5510255 Spacer
14 5510256 C-Ring
15 5510258 Screw, Set
16 5510259 Pin, Roll
71 5511849 Cover
72 5513354 Screw
26 5510261 Screw, Socket Head
27 5510262 Washer
28 5510263 Container, (includes #29)
29 5510263 Spring, Return
30 5510265 Screw, Socket Head
31 5510266 Seat, Spring
32 5510267 Pin, Spring
36 5513770 Washer, Rubber
37 5513771 Band, Quill
37A 5517380 Bolt, Hex, Shoulder
37B 5517381 Washer, Flat
37C 5517382 Nut, Hex
38 5513772 Nut, Lock
39 5513773 Bearing, Ball
40 5513774 Pin, Drift
41 5510268 Quill
42 5510269 Bearing, Ball
43 5510270 Spindle
44 5510271 Seal, Oil
45 5510272 Nut
46 5510273 Rod, Depth
48 5510274 Nut
24
49 5510275 Nut
50 5510276 Retainer
51 5510277 Pin, Spring
53 5510278 Scale, Depth
58 5510279 Screw, Round Head Cap
60 5510280 Key
61 5510281 Screw, Socket Head
62 5510282 Key
63 5510283 Shaft, Feed
66 5510284 Seat, Feed Shaft
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Exploded View - Table and Base (All Models)
25
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Parts List - Table and Base (All Models)
Item Part
Item Part
No. Number
Description
Qty
No. Number
Description
Qty
41 5510326 Clamp
1
1
1
1
4
1
1
1
1
1
1
2
1
1
1
1
2
1
1
1
1
1
2
3
5510288 Base
5510289 Plate, Coolant Cover
5510456 Pump, Coolant, 115V, 1P
5512103 Pump, Coolant, 220/440V 3P 1
5510291 Bolt, Hex
5517388 Screw, Pan Head
5510293 Seat, Ball
1
1
1
42 5510327 Screw, Pan Head
43 5510328 Hose, Vinyl, Clear, 3/8"
44 5510329 Barb, Hose, 3/8" (supply)
45 5512112 SHCS, #10-32 x 1"
46 5510331 Bracket, Mounting
47 5510332 Valve
48 5510333 Nozzle, Flexible
49 5517400 Screw, Pan Head
50 5517401 Hose, Vinyl, Clear, 1/2"
51 5517402 Clamp, Hose
52 5517403 Screw, Set, 1/2 x 1
53 5517404 Plug, Drain, 3/8 NPT
54 5517405 Pin, Spring, 4x50
55 5517406 Collar, Rack
56 5513932 Assembly, Table Raiser
57 9057451 Washer, Flat, #10
58 5517488 Nut, Hex, 1/2"
59 5517489 Cord, Power
4
5
6
7
4
3
1
4
4
1
1
1
1
4
1
1
1
1
1
1
1
2
2
2
2
1
1
1
1
2
4
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
5510294 Screw, Set
7-1 5517389 Block, Brass
8
9
5510295 Bearing, Ball
5510296 Ring, Lock
9-1 5517390 Pin
10 5516859 Shaft, Table Raiser
11 5510298 Pin, Spring
12 5516858 Shaft, Table Clamp
13 5516860 Coupling, Table Raiser
14 5510300 Screw, Socket Head
15 5510301 Nut
16 5510302 Rack
60 5517490 Assy., Switch
17 5514663 Gear, Bevel, Large
18 5517391 Housing, Bearing
18-1 5517392 Bearing, Ball, 6202ZZ
18-2 5517393 Washer
18-3 5510303 Screw, Cap
19 5510304 Gear, Bevel, Small
20 5510305 Bracket Cover
21 5510306 C-Ring
22 5510307 Bearing, Ball
23 5510308 Shaft
24 5510309 C-Ring
25 5510310 Screw, Socket Head
26 5510311 Shaft
27 5517395 Screw, Set
28 5510313 Key
29 5510314 Bearing
30 5510315 Worm, Table Raise
31 5510316 Key
32 5510317 Gear, Worm
33 5510318 Gear
34 5510319 Lock, Cam, Front
35 5510320 Lock, Cam, Rear
35-1 5517396 Spring
35-2 5517397 Screw, Cap, M6x25
35-3 5517398 Pin, 5x25
36 5510321 Crank, Table Raise
37 5510322 Table
37-1 5517399 Barb, Hose, 1/2" (return)
38 5510323 Column
39 5510324 Handle, Table Raise
40 5510325 Screw, Hex Head
40-1 5510334 Washer
61
Cord, Pump
5517491 1 Phase
5517492 3 Phase
62 5517493 Clamp, Hose, Rad. Type
63 9058341 Washer, Lock, #10
64 5517628 Nut, Hex, #10-32
2
4
4
1
65
Coolant System Complete
5512104 1/8 HP, 115/220V, 1 Phase
5508071 1/8 HP, 220/440V, 3 Phase
26
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WMH TOOL GROUP
2420 Vantage Drive
Elgin, IL 60123
Phone: 800-274-6848
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