Page 1
MODEL T33901/T33902
14" DRILL PRESS w/LED &
LASER GUIDE
OWNER'S MANUAL
(For models manufactured since 07/23)
COPYRIGHT © SEPTEMBER, 2023 BY GRIZZLY INDUSTRIAL, INC., REVISED DECEMBER, 2023 (CS)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#CS22848 PRINTED IN CHINA
***Keep for Future Reference***
V1.12. 2 3
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This manual provides critical safety instructions on the proper setup,
operation, maintenance, and service of this machine/tool. Save this
document, refer to it often, and use it to instruct other operators.
Failure to read, understand and follow the instructions in this manual
may result in fire or serious personal injury—including amputation,
electrocution, or death.
The owner of this machine/tool is solely responsible for its safe use.
This responsibility includes but is not limited to proper installation in
a safe environment, personnel training and usage authorization,
proper inspection and maintenance, manual availability and comprehension, application of safety devices, cutting/sanding/grinding tool
integrity, and the usage of personal protective equipment.
The manufacturer will not be held liable for injury or property damage
from negligence, improper training, machine modifications or misuse.
Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities contains chemicals known to the State
of California to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement and other masonry products.
• Arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you
do this type of work. To reduce your exposure to these chemicals:
Work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter
out microscopic particles.
Page 3
Table of Contents
INTRODUCTION ............................................... 2
Contact Info
Manual Accuracy
Identification
Controls & Components
Machine Data Sheet (T33901)
Machine Data Sheet (T33902)
SECTION 1: SAFETY
Safety Instructions for Machinery
Additional Safety for Drill Presses
SECTION 2: POWER SUPPLY
SECTION 3: SETUP
Needed for Setup
Unpacking
Inventory
Cleanup
Site Considerations
Bench Mounting (T33901)
Anchoring to Floor (T33902)
Assembly
Joining Drill Chuck & Arbor
Test Run
Spindle Break-In
................................................... 2
........................................... 2
................................................... 3
................................. 4
...................... 6
...................... 8
..................................... 10
................ 10
............... 12
...................... 13
....................................... 15
......................................... 15
.................................................... 15
...................................................... 16
........................................................ 17
...................................... 17
........................... 18
........................ 18
..................................................... 19
.......................... 21
....................................................... 22
.......................................... 23
SECTION 5: ACCESSORIES
SECTION 6: MAINTENANCE
Schedule
Cleaning & Protecting
Lubrication
SECTION 7: SERVICE
Troubleshooting
Adjusting Return Spring Tension
Aligning Motor Pulley
Calibrating Depth Stop
Replacing Laser Modules & LED
Adjusting Quill Shaft Lock Screw
SECTION 8: WIRING
Wiring Safety Instructions
Wiring Diagram
Electrical Component Photos
SECTION 9: PARTS
T33901 Main
T33902 Main
Labels & Cosmetics
WARRANTY & RETURNS
...................................................... 33
.................................. 33
................................................... 33
................................... 35
........................................... 35
................................... 39
................................. 40
...................................... 43
............................ 43
............................................ 44
....................................... 46
................................................ 46
................................................ 49
..................................... 52
.............................. 53
......................... 32
......................... 33
................. 38
................. 41
................. 42
...................... 45
SECTION 4: OPERATIONS
Operation Overview
Installing/Removing Arbor
Choosing Spindle Speed
Changing Spindle Speed
Installing/Removing Drill Bit
Adjusting Depth Stop
Positioning Table
Adjusting Laser Guide
..................................... 24
................................... 29
.......................................... 30
................................. 31
............................ 24
............................ 25
............................. 27
............................. 28
......................... 29
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We stand behind our machines! If you have questions or need help, contact us with the information
below. Before contacting, make sure you get the
serial number
from the
machine ID label. This will help us help you faster.
We want your feedback on this manual. What did
you like about it? Where could it be improved?
Please take a few minutes to give us feedback.
Email: manuals@grizzly.com
We are proud to provide a high-quality owner’s
manual with your new machine!
We
instructions, specifications, drawings, and photographs
in this manual. Sometimes we make mistakes, but
our policy of continuous improvement also means
that
you receive is
slightly different than shown in the manual
If you find this to be the case, and the difference
between the manual and machine leaves you
confused or unsure about something
check our
website for an updated version. W
current
manuals and
on our web-
site at
Alternatively, you can call our Technical Support
for help. Before calling, make sure you write
down the
serial number
from the machine ID label (see below). This
information is required for us to provide proper
tech support, and it helps us determine if updated
documentation is available for your machine.
INTRODUCTION
Contact Info
and manufacture date
Grizzly Technical Support
1815 W. Battlefield
Springfield, MO 65807
Phone: (570) 546-9663
Email: techsupport@grizzly.com
Grizzly Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069
Manual Accuracy
made every effort to be exact with the
sometimes the machine
.
,
e post
manual updates for free
www.grizzly.com.
manufacture date and
Manufacture Date
Serial Number
-2-
Model T33901/T33902 (Mfd. Since 07/23)
Page 5
Identification
Become familiar with the names and locations of the controls and features shown below to better understand
the instructions in this manual.
Spindle Return
Chuck
Depth
Stop
Laser & LED
Switches
ON/OFF Switch
w/Disabling Key
Belt Cover
Belt Tension
Lock Knob
(1 of 2)
Belt Tension
Lever
Spring
Motor
LED &
Laser Guide
Column
Table Height
Lock Handle
(T33901 Shown)
Chuck Guard
Table Pivot
Lock Handle
Table
Base
For Your Own Safety Read Instruction Manual Before Operating Drill Press
a) Wear eye protection.
b) Do not wear gloves, necktie, or loose clothing.
c) Clamp workpiece or brace against column to prevent rotation.
d) Use recommended speed for drill accessory and workpiece material.
Downfeed Handle
(1 of 3)
Table Height
Crank
Model T33901/T33902 (Mfd. Since 07/23)
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Page 6
Controls &
To reduce your risk of
serious injury, read this
entire manual BEFORE
Spindle Speed
Components
using machine.
Refer to the following figures and descriptions to
become familiar with the basic controls and components of this machine. Understanding these
items and how they work will help you understand
the rest of the manual and minimize your risk of
injury when operating this machine.
Power Controls
A
F
D
Figure 2. Spindle speed components.
D. Spindle Pulley: Holds V-belt and transfers
motor power from idler pulley to spindle.
E. V-Belts: Control spindle speed.
F. Idler Pulley: Holds V-belts and transfers
motor power from motor pulley to spindle
pulley.
E
E
G
B
C
Figure 1. Power controls.
A. LED Switch: Turns LED ON or OFF.
B. ON/OFF Switch w/Disabling Key: Turns
motor ON when moved up; turns motor OFF
when moved down. Removal of yellow key
disables switch so motor cannot start.
C. Laser Switch: Turns laser guide ON or OFF.
G. Motor Pulley: Holds V-belt and transfers
motor power to idler pulley.
Headstock
H
I
K
Figure 3. Right headstock components.
H. Chuck Key: Adjusts jaws on chuck for drill bit
changes.
J
-4-
I. Belt Tension Lever: Adjusts motor position
to tension and release belts for changing
spindle speed, and for servicing.
Model T33901/T33902 (Mfd. Since 07/23)
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J. Downfeed Handle (1 of 3): Moves spindle
down when pulled down. Spindle automatically returns to top position when released.
K. Chuck: Accepts drill bits with shanks from
1
⁄8"–5⁄8".
L
O. LED: Illuminates work area.
P. Laser Guide: Projects crosshairs on table to
align workpiece to drill bit.
Table
M
N
Figure 4. Left headstock components.
L. Belt Tension Lock Knob (1 of 2): Locks
motor position.
M. Depth Stop: Stops spindle travel at prede-
termined drilling depth. Top of depth stop nut
indicates depth on scale.
N. Spindle Return Spring: Automatically
returns quill into headstock.
LED & Laser Guide
R
Q
Figure 6. Right table components.
Q. Table Pivot Lock Handle: Loosens to allow
rotation of table; tightens to lock table rotation.
R. Table Height Crank: Adjusts table up and
down.
S
O
Figure 5. LED and laser guide.
Model T33901/T33902 (Mfd. Since 07/23)
T
P
Figure 7. Left table components.
S. Tilt Scale: Displays current table tilt angle.
T. Table Height Lock Handle: Loosens to
allow adjustment of table position on column;
tightens to lock table position.
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Drill Chuck Size................................................................................................................................ 1/8 - 5/8 in.
Machine Data Sheet (T33901)
MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL T33901 14" BENCHTOP DRILL PRESS WITH LED
14" BENCHTOP DRILL PRESS W/LED & LASER GUIDE
Product Dimensions:
Weight.............................................................................................................................................................. 108 lbs.
Width (side-to-side) x Depth (front-to-back) x Height..................................................................... 15 x 25-1/2 x 39 in.
Footprint (Length x Width)..................................................................................................................... 18 x 10-1/2 in.
Shipping Dimensions:
Type............................................................................................................................................................. Cardboard
Content........................................................................................................................................................... Machine
Weight.............................................................................................................................................................. 116 lbs.
Length x Width x Height....................................................................................................................... 36 x 23 x 14 in.
Must Ship Upright................................................................................................................................................... Yes
Electrical:
Power Requirement........................................................................................................... 120V, Single-Phase, 60 Hz
Full-Load Current Rating....................................................................................................................................... 7.5A
Minimum Circuit Size.............................................................................................................................................. 15A
Connection Type....................................................................................................................................... Cord & Plug
Power Cord Included.............................................................................................................................................. Yes
Power Cord Length.............................................................................................................................................. 70 in.
Power Cord Gauge......................................................................................................................................... 16 AWG
Plug Included.......................................................................................................................................................... Yes
Included Plug Type................................................................................................................................................ 5-15
Switch Type...................................................................................................... Paddle Safety Switch w/Disabling Key
MODEL T33901
LIGHT & LASER GUIDE
Motors:
Main
Horsepower............................................................................................................................................. 3/4 HP
Phase............................................................................................................................................ Single-Phase
Amps........................................................................................................................................................... 7.5A
Speed................................................................................................................................................ 1720 RPM
Type................................................................................................................. TEFC Capacitor-Start Induction
Power Transfer ......................................................................................................................................... Direct
Bearings..................................................................................................... Shielded & Permanently Lubricated
Main Specifications:
Operation Information
Type......................................................................................................................................................... Bench
Swing......................................................................................................................................................... 14 in.
Spindle Taper............................................................................................................................................ MT#2
Spindle Travel........................................................................................................................................ 3-1/4 in.
Max. Distance From Spindle to Column...................................................................................................... 7 in.
Max. Distance From Spindle to Table................................................................................................. 15-7/8 in.
Number of Spindle Speeds............................................................................................................................. 12
Range of Spindle Speeds......................................................................................................... 340 - 2860 RPM
Drilling Capacity (Mild Steel)..................................................................................................................... 5/8 in.
Drilling Capacity (Cast Iron)...................................................................................................................... 3/4 in.
Drill Chuck Type......................................................................................................................... JT3 Key Chuck
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Model T33901/T33902 (Mfd. Since 07/23)
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Spindle Information
Distance From Spindle to Base........................................................................................................... 23-3/8 in.
Quill Diameter......................................................................................................................................... 1.85 in.
Table Information
Max. Table Tilt (Left/Right)................................................................................................................ 0 - 45 deg.
Table Swing.......................................................................................................................................... 360 deg.
Table Swivel Around Center................................................................................................................. 360 deg.
Table Swivel Around Column............................................................................................................... 360 deg.
Table Length........................................................................................................................................ 11-1/4 in.
Table Width......................................................................................................................................... 11-1/4 in.
Table Thickness.................................................................................................................................. 1-1/16 in.
Vertical Table Travel............................................................................................................................ 14-3/8 in.
Number of T-Slots............................................................................................................................................
T-Slot Size..............................................................................................................................................
Floor-To-Table Height.................................................................................................................... 9-5/8 - 24 in.
Construction
Table....................................................................................................................... Precision-Ground Cast Iron
Column....................................................................................................................................................... Steel
Spindle Housing................................................................................................................................... Cast Iron
Head.................................................................................................................................................... Cast Iron
Base..................................................................................................................................................... Cast Iron
Paint Type/Finish....................................................................................................................... Powder Coated
Other Related Information
Base Length............................................................................................................................................... 18 in.
Base Width.......................................................................................................................................... 10-1/2 in.
Column Diameter................................................................................................................................... 3-1/8 in.
Quill Flange/Collar Diameter................................................................................................................. 2-1/8 in.
Quill Hold Type...................................................................................................................... Slotted Set Screw
Depth Stop Type................................................................................................ Threaded Rod w/Positive Stop
Has Work Light............................................................................................................................................. Yes
Light Socket Type................................................................................................................................ LED 12V
Maximum Bulb Wattage................................................................................................................................ 3W
Has Laser Guide.......................................................................................................................................... Yes
Laser Classification................................................................................................................................ Class II
Laser Wavelength................................................................................................................................... 650 nm
Laser Maximum Output.............................................................................................................................. 1mW
4
9/16 in.
Other Specifications:
Country of Origin ................................................................................................................................................ China
Warranty ........................................................................................................................................................... 1 Year
Approximate Assembly & Setup Time ........................................................................................................ 30 Minutes
Serial Number Location ................................................................................................................... Machine ID Label
ISO 9001 Factory .................................................................................................................................................. Yes
Features:
Hand-Crank Enabled Rack and Pinion Table Elevation
11-1/4" x 11-1/4" Cast Iron Table w/Four 9/16" T-Slots
Built-In LED Light
Adjustable Class II Laser Sights
3-1/4" Spindle Travel
360 Deg. Table Positioning Around Column
Cast Iron Base w/Two 5/8" T-Slots, 5-1/4" on Center
12 Speed Settings: 340, 500, 530, 660, 740, 790, 1380, 1420, 1680, 1860, 2200, 2860 RPM
JT3 Key Chuck 1/8" - 5/8"
Model T33901/T33902 (Mfd. Since 07/23)
-7-
Page 10
Machine Data Sheet (T33902)
Drill Chuck Size................................................................................................................................ 1/8 - 5/8 in.
MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL T33902 14" FLOOR DRILL PRESS WITH LED LIGHT
14" FLOOR DRILL PRESS W/LED & LASER GUIDE
Product Dimensions:
Weight.............................................................................................................................................................. 126 lbs.
Width (side-to-side) x Depth (front-to-back) x Height............................................................... 15 x 25-1/2 x 61-1/2 in.
Footprint (Length x Width)..................................................................................................................... 18 x 10-1/2 in.
Shipping Dimensions:
Type..................................................................................................................................................... Cardboard Box
Content........................................................................................................................................................... Machine
Weight.............................................................................................................................................................. 133 lbs.
Length x Width x Height....................................................................................................................... 46 x 23 x 14 in.
Must Ship Upright................................................................................................................................................... Yes
Electrical:
Power Requirement............................................................................................................ 120V, Single-Phase, 60Hz
Full-Load Current Rating....................................................................................................................................... 7.5A
Minimum Circuit Size.............................................................................................................................................. 15A
Connection Type....................................................................................................................................... Cord & Plug
Power Cord Included.............................................................................................................................................. Yes
Power Cord Length.............................................................................................................................................. 70 in.
Power Cord Gauge......................................................................................................................................... 16 AWG
Plug Included.......................................................................................................................................................... Yes
Included Plug Type................................................................................................................................................ 5-15
Switch Type...................................................................................................... Paddle Safety Switch w/Disabling Key
MODEL T33902
& LASER GUIDE
Motors:
Main
Horsepower............................................................................................................................................. 3/4 HP
Phase............................................................................................................................................ Single-Phase
Amps........................................................................................................................................................... 7.5A
Speed................................................................................................................................................ 1720 RPM
Type................................................................................................................. TEFC Capacitor-Start Induction
Power Transfer ............................................................................................................................................ Belt
Bearings..................................................................................................... Shielded & Permanently Lubricated
Main Specifications:
Operation Information
Type........................................................................................................................................................... Floor
Swing......................................................................................................................................................... 14 in.
Spindle Taper............................................................................................................................................ MT#2
Spindle Travel....................................................................................................................................... 3-1/4 in.
Max. Distance From Spindle to Column...................................................................................................... 7 in.
Max. Distance From Spindle to Table................................................................................................. 26-3/8 in.
Number of Spindle Speeds............................................................................................................................. 12
Range of Spindle Speeds......................................................................................................... 340 - 2860 RPM
Drilling Capacity (Mild Steel)..................................................................................................................... 5/8 in.
Drilling Capacity (Cast Iron)...................................................................................................................... 3/4 in.
Drill Chuck Type......................................................................................................................... JT3 Key Chuck
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Model T33901/T33902 (Mfd. Since 07/23)
Page 11
Spindle Information
Distance From Spindle to Base........................................................................................................... 45-3/4 in.
Quill Diameter....................................................................................................................................... 1.847 in.
Table Information
Max. Table Tilt (Left/Right)................................................................................................................ 0 - 45 deg.
Table Swing.......................................................................................................................................... 360 deg.
Table Swivel Around Center................................................................................................................. 360 deg.
Table Swivel Around Column............................................................................................................... 360 deg.
Max. Movement of Work Table............................................................................................................ 22-1/4 in.
Table Length........................................................................................................................................ 11-1/4 in.
Table Width......................................................................................................................................... 11-1/4 in.
Table Thickness.................................................................................................................................. 1-1/16 in.
Vertical Table Travel.....................................................................................................................
Number of T-Slots............................................................................................................................................
T-Slot Size.............................................................................................................................................. 9/16 in.
Floor-To-Table Height............................................................................................................ 21-1/2 - 43-3/4 in.
Construction
Table....................................................................................................................... Precision-Ground Cast Iron
Column....................................................................................................................................................... Steel
Spindle Housing................................................................................................................................... Cast Iron
Head.................................................................................................................................................... Cast Iron
Base..................................................................................................................................................... Cast Iron
Paint Type/Finish...................................................................................................................... Powder Coated
Crank Handle
4
Other Related Information
Base Length............................................................................................................................................... 18 in.
Base Width.......................................................................................................................................... 10-1/2 in.
Column Diameter................................................................................................................................... 3-1/8 in.
Quill Hold Type...................................................................................................................... Slotted Set Screw
Depth Stop Type................................................................................................ Threaded Rod w/Positive Stop
Has Work Light............................................................................................................................................. Yes
Light Socket Type................................................................................................................................ LED 12V
Maximum Bulb Wattage................................................................................................................................ 3W
Has Laser Guide.......................................................................................................................................... Yes
Laser Classification................................................................................................................................ Class II
Laser Wavelength................................................................................................................................... 650 nm
Laser Maximum Output.............................................................................................................................. 1mW
Other Specifications:
Country of Origin ................................................................................................................................................ China
Warranty ........................................................................................................................................................... 1 Year
Approximate Assembly & Setup Time ........................................................................................................ 30 Minutes
Serial Number Location ................................................................................................................... Machine ID Label
ISO 9001 Factory .................................................................................................................................................. Yes
Features:
Hand-Crank Enabled Rack and Pinion Table Elevation
11-1/4" x 11-1/4" Cast Iron Table w/Four 9/16" T-Slots
Built-In LED Light
Adjustable Class II Laser Sights
3-1/4" Spindle Travel
360 Deg. Table Positioning Around Column
Cast Iron Base w/Two 3/4" T-Slots, 5-1/4" on Center
12 Speed Settings: 340, 500, 530, 660, 740, 790, 1380, 1420, 1680, 1860, 2200, 2860 RPM
JT3 Key Chuck 1/8" - 5/8"
Model T33901/T33902 (Mfd. Since 07/23)
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Page 12
SECTION 1: SAFETY
For Your Own Safety, Read Instruction
Manual Before Operating This Machine
The purpose of safety symbols is to attract your attention to possible hazardous conditions.
This manual uses a series of symbols and signal words intended to convey the level of importance of the safety messages. The progression of symbols is described below. Remember that
safety messages by themselves do not eliminate danger and are not a substitute for proper
accident prevention measures. Always use common sense and good judgment.
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
MAY result in minor or moderate injury. It may also be used to alert
against unsafe practices.
Alerts the user to useful information about proper operation of the
NOTICE
machine to avoid machine damage.
Safety Instructions for Machinery
OWNER’S MANUAL. Read and understand this
owner’smanualBEFOREusingmachine.
TRAINED OPERATORS ONLY. Untrained operators have a higher risk of being hurt or killed.
Only allow trained/supervised people to use this
machine. When machine is not being used, disconnect power, remove switch keys, or lock-out
machine to prevent unauthorized use—especially
around children. Make your workshop kid proof!
DANGEROUS ENVIRONMENTS. Do not use
machinery in areas that are wet, cluttered, or have
poor lighting. Operating machinery in these areas
greatly increases the risk of accidents and injury.
MENTAL ALERTNESS REQUIRED. Full mental
alertness is required for safe operation of machinery. Never operate under the influence of drugs or
alcohol, when tired, or when distracted.
ELECTRICAL EQUIPMENT INJURY RISKS.
You can be shocked, burned, or killed by touching
live electrical components or improperly grounded
machinery. To reduce this risk, only allow qualified
service personnel to do electrical installation or
repair work, and always disconnect power before
accessing or exposing electrical equipment.
DISCONNECT POWER FIRST.
nect machine from power supply BEFORE making adjustments, changing tooling, or servicing
machine. This prevents an injury risk from unintended startup or contact with live electrical components.
EYE PROTECTION. Always wear ANSI-approved
safety glasses or a face shield when operating
or observing machinery to reduce the risk of eye
injury or blindness from flying particles. Everyday
eyeglasses are NOT approved safety glasses.
Always discon-
-10-
Model T33901/T33902 (Mfd. Since 07/23)
Page 13
may damage the wires inside. Do not handle
WEARING PROPER APPAREL. Do not wear
loose clothing, gloves, neckties, or jewelry that
can become entangled in moving parts. Always tie
back or cover long hair. Wear non-slip footwear to
reduce risk of slipping and losing control or accidentally contacting cutting tool or moving parts.
HAZARDOUS DUST. Dust created by machinery
operations may cause cancer, birth defects, or
long-term respiratory damage. Be aware of dust
hazards associated with each workpiece material. Always wear a NIOSH-approved respirator to
reduce your risk.
HEARING PROTECTION. Always wear hearing protection when operating or observing loud
machinery. Extended exposure to this noise without hearing protection can cause permanent
hearing loss.
REMOVE ADJUSTING TOOLS. Tools left on
machinery can become dangerous projectiles
upon startup. Never leave chuck keys, wrenches,
or any other tools on machine. Always verify
removal before starting!
USE CORRECT TOOL FOR THE JOB. Only use
this tool for its intended purpose—do not force
it or an attachment to do a job for which it was
not designed. Never make unapproved modifications—modifying tool or using it differently than
intended may result in malfunction or mechanical
failure that can lead to personal injury or death!
AWKWARD POSITIONS. Keep proper footing
and balance at all times when operating machine.
Do not overreach! Avoid awkward hand positions
that make workpiece control difficult or increase
the risk of accidental injury.
CHILDREN & BYSTANDERS. Keep children and
bystanders at a safe distance from the work area.
Stop using machine if they become a distraction.
GUARDS & COVERS. Guards and covers reduce
accidental contact with moving parts or flying
debris. Make sure they are properly installed,
undamaged, and working correctly BEFORE
operating machine.
FORCING MACHINERY. Do not force machine.
It will do the job safer and better at the rate for
which it was designed.
NEVER STAND ON MACHINE. Serious injury
may occur if machine is tipped or if the cutting
tool is unintentionally contacted.
STABLE MACHINE. Unexpected movement during operation greatly increases risk of injury or
loss of control. Before starting, verify machine is
stable and mobile base (if used) is locked.
USE RECOMMENDED ACCESSORIES. Consult
thisowner’smanualorthemanufacturerforrec-
ommended accessories. Using improper accessories will increase the risk of serious injury.
UNATTENDED OPERATION. To reduce the
risk of accidental injury, turn machine OFF and
ensure all moving parts completely stop before
walking away. Never leave machine running
while unattended.
MAINTAIN WITH CARE. Follow all maintenance
instructions and lubrication schedules to keep
machine in good working condition. A machine
that is improperly maintained could malfunction,
leading to serious personal injury or death.
DAMAGED PARTS. Regularly inspect machine
for damaged, loose, or mis-adjusted parts—or
any condition that could affect safe operation.
Immediately repair/replace BEFORE operating
machine. For your own safety, DO NOT operate
machine with damaged parts!
MAINTAIN POWER CORDS. When disconnecting cord-connected machines from power, grab
and pull the plug—NOT the cord. Pulling the cord
cord/plug with wet hands. Avoid cord damage by
keeping it away from heated surfaces, high traffic
areas, harsh chemicals, and wet/damp locations.
EXPERIENCING DIFFICULTIES. If at any time
you experience difficulties performing the intended operation, stop using the machine! Contact our
Technical Support at (570) 546-9663.
Model T33901/T33902 (Mfd. Since 07/23)
-11-
Page 14
Additional Safety for Drill Presses
To avoid loss of
drilling control or bit breakage, only drill into a flat
surface that is approximately perpendicular to
tool/bit, tighten all table and headstock locks
Serious injury or death can occur from getting clothing, jewelry, or long hair entangled in
rotating spindle or bit/cutting tool. Contact with rotating bit/cutting tool can result in severe cuts
or amputation of fingers. Flying metal chips can cause blindness or eye injuries. Broken bits/
cutting tools, unsecured workpieces, chuck keys, or other adjustment tools thrown from rotating
spindle can strike nearby operator or bystanders with deadly force. To reduce the risk of these
hazards, operator and bystanders MUST completely heed hazards and warnings below.
EYE/FACE/HAND PROTECTION. Flying chips
created by drilling can cause eye injuries or blindness. Always wear a face shield in addition to
safety glasses. Always keep hands and fingers
away from drill bit/cutting tool. Avoid awkward
hand positions, where a sudden slip could cause
hand to move into bit/cutting tool.
AVOIDING ENTANGLEMENT. DO NOT wear
loose clothing, gloves, or jewelry. Tie back long
hair. Keep all guards in place and secure. Always
allow spindle to stop on its own. DO NOT stop
spindle using your hand or any other object.
REMOVING ADJUSTMENT TOOLS. Chuck key,
wrenches, and other tools left on machine can
become deadly projectiles when spindle is started.
Remove all loose items or tools used on spindle
immediately after use.
CORRECT SPINDLE SPEED. Using wrong spindle speed can cause bits/cutting tools to break
and strike operator or bystanders. Follow recommended speeds and feeds for each size/type of
bit/cutting tool and workpiece material.
SECURING BIT/CUTTING TOOL. Firmly secure
bit/cutting tool in chuck so it cannot fly out of
spindle during operation or startup.
DRILLING PREPARATION.
bit. Clear table of all objects before starting spindle. Never start spindle with bit pressed against
workpiece.
SECURING TABLE AND HEADSTOCK. To avoid
loss of control leading to accidental contact with
before operating drill press.
WORKPIECE CONTROL. An unsecured workpiece may unexpectedly shift, spin out of control, or be thrown if bit/cutting tool “grabs” during
operation. Clamp workpiece to table or in tablemounted vise, or brace against column to prevent
rotation. NEVER hold workpiece by hand during
operation. NEVER start machine with bit/cutting
tool touching workpiece; allow spindle to gain full
speed before drilling.
INSPECTING BIT/CUTTING TOOL. Damaged
bits/cutting tools may break apart during operation
and hit operator or bystanders. Dull bits/cutting
tools increase cutting resistance and are more
likely to grab and spin/throw workpiece. Always
inspect bits/cutting tools for sharpness, chips, or
cracks before each use. Replace dull, chipped, or
cracked bits/cutting tools immediately.
Like all machinery there is potential danger
when operating this machine. Accidents
are frequently caused by lack of familiarity
or failure to pay attention. Use this machine
with respect and caution to decrease the
risk of operator injury. If normal safety precautions are overlooked or ignored, serious personal injury may occur.
-12-
No list of safety guidelines can be complete. Every shop environment is different.
Always consider safety first, as it applies
to your individual working conditions. Use
this and other machinery with caution and
respect. Failure to do so could result in
serious personal injury, damage to equipment, or poor work results.
Model T33901/T33902 (Mfd. Since 07/23)
Page 15
SECTION 2: POWER SUPPLY
Before installing the machine, consider the availability and proximity of the required power supply
circuit. If an existing circuit does not meet the
requirements for this machine, a new circuit must
be installed. To minimize the risk of electrocution,
fire, or equipment damage, installation work and
electrical wiring must be done by an electrician or
qualified service personnel in accordance with all
applicable codes and standards.
or equipment damage
may occur if machine is
not properly grounded
and connected to power
The full-load current rating is the amperage a
machine draws at 100% of the rated output power.
On machines with multiple motors, this is the
amperage drawn by the largest motor or sum of all
motors and electrical devices that might operate
at one time during normal operations.
The full-load current is not the maximum amount
of amps that the machine will draw. If the machine
is overloaded, it will draw additional amps beyond
the full-load rating.
If the machine is overloaded for a sufficient length
of time, damage, overheating, or fire may result—
especially if connected to an undersized circuit.
To reduce the risk of these hazards, avoid overloading the machine during operation and make
sure it is connected to a power supply circuit that
meets the specified circuit requirements.
For your own safety and protection of
Note: Circuit requirements in this manual apply to
a dedicated circuit—where only one machine will
be running on the circuit at a time. If machine will
be connected to a shared circuit where multiple
machines may be running at the same time, consult an electrician or qualified service personnel to
ensure circuit is properly sized for safe operation.
A power supply circuit includes all electrical
equipment between the breaker box or fuse panel
in the building and the machine. The power supply circuit used for this machine must be sized to
safely handle the full-load current drawn from the
machine for an extended period of time. (If this
machine is connected to a circuit protected by
fuses, use a time delay fuse marked D.)
This machine is prewired to operate on a power
supply circuit that has a verified ground and meets
the following requirements:
Availability
Electrocution, fire, shock,
Serious injury could occur if you connect
machine to power before completing setup
process. DO NOT connect to power until
instructed later in this manual.
120V Circuit Requirements
Nominal Voltage .................... 110V, 115V, 120V
Cycle
Phase
Power Supply Circuit
Plug/Receptacle
..........................................................60 Hz
........................................... Single-Phase
......................... 15 Amps
............................. NEMA 5-15
supply.
Full-Load Current Rating
Full-Load Current Rating at 120V .... 7.5 Amps
Model T33901/T33902 (Mfd. Since 07/23)
property, consult an electrician if you are
unsure about wiring practices or electrical
codes in your area.
-13-
Page 16
Improper connection of the equipment-grounding
wire can result in a risk of electric shock. The
wire with green insulation (with or without yellow
stripes) is the equipment-grounding wire. If repair
or replacement of the power cord or plug is necessary, do not connect the equipment-grounding
wire to a live (current carrying) terminal.
Check with a qualified electrician or service personnel if you do not understand these grounding
requirements, or if you are in doubt about whether
the tool is properly grounded. If you ever notice
that a cord or plug is damaged or worn, disconnect it from power, and immediately replace it with
We do not recommend using an extension cord
with this machine. If you must use an extension
cord, only use it if absolutely necessary and only
on a temporary basis.
Extension cords cause voltage drop, which can
damage electrical components and shorten motor
life. Voltage drop increases as the extension cord
size gets longer and the gauge size gets smaller
(higher gauge numbers indicate smaller sizes).
Any extension cord used with this machine must
be in good condition and contain a ground wire
and matching plug/receptacle. Additionally, it must
meet the following size requirements:
Grounding & Plug Requirements
Two-prong outlets do not meet the
grounding requirements for this machine.
provided—if it will not fit the outlet, have a
This machine MUST be grounded. In the event
of certain malfunctions or breakdowns, grounding
reduces the risk of electric shock by providing a
path of least resistance for electric current.
This machine is equipped with a power cord that
has an equipment-grounding wire and a grounding
plug. Only insert plug into a matching receptacle
(outlet) that is properly installed and grounded in
accordance with all local codes and ordinances.
DO NOT modify the provided plug!
GROUNDED
5-15 RECEPTACLE
Grounding Pin
5-15 PLUG
Extension Cords
Neutral Hot
Figure 8. Typical 5-15 plug and receptacle.
SHOCK HAZARD!
Do not modify or use an adapter on the plug
qualified electrician install the proper outlet
with a verified ground.
-14-
Minimum Gauge Size ........................... 16 AWG
Maximum Length (Shorter is Better)
Model T33901/T33902 (Mfd. Since 07/23)
.......50 ft.
Page 17
SECTION 3: SETUP
The following items are needed, but not included,
for the setup/assembly of this machine.
This machine was carefully packaged for safe
transport. When unpacking, separate all enclosed
items from packaging materials and inspect them
for shipping damage.
,
please
IMPORTANT: Save all packaging materials until
you are completely satisfied with the machine and
have resolved any issues between Grizzly or the
shipping agent. You MUST have the original pack-
aging to file a freight claim. It is also extremely
helpful if you need to return your machine later.
Needed for Setup
This machine presents
serious injury hazards
to untrained users. Read
through this entire manual to become familiar with
the controls and operations before starting the
machine!
Wear safety glasses during
the entire setup process!
HEAVY LIF T!
Straining or crushing injury
may occur from improperly
lifting machine or some of
its parts. To reduce this risk,
get help from other people
and use a forklift (or other
lifting equipment) rated for
weight of this machine.
Description Qty
• Safety Glasses (for each person) .......... 1 Pr.
• Cleaner/Degreaser ..................... As Needed
• Acetone/Lacquer Thinner ........... As Needed
• Disposable Rags ........................ As Needed
• Disposable Gloves ..................... As Needed
• Lifting Equipment
(Rated for at least 175 lbs.) ........................ 1
• Another Person .......................................... 1
• Wrench or Socket 17mm ............................ 1
• Open-End Wrench 7mm ............................. 1
• Phillips Head Screwdriver #2 ..................... 1
• Plumb Bob .................................................. 1
• Ruler or Measuring Tape ............................ 1
• Marker ........................................................ 1
• Block of Wood ............................................ 1
• Mounting Hardware .................... As Needed
Unpacking
Model T33901/T33902 (Mfd. Since 07/23)
If items are damaged
call us immediately at (570) 546-9663.
-15-
Page 18
Inventory
The following is a list of items shipped with your
machine. Before beginning setup, lay these items
out and inventory them.
If any non-proprietary parts are missing (e.g. a
nut or a washer), we will gladly replace them; or
for the sake of expediency, replacements can be
obtained at your local hardware store.
NOTICE
If you cannot find an item on this list, carefully check around/inside the machine and
packaging materials. Often, these items get
lost in packaging materials while unpacking or they are pre-installed at the factory.
Box 1 (Figure 9) Qty
A. Headstock .................................................. 1
B. Column Assembly (T33902) ....................... 1
C. Column Assembly (T33901) ....................... 1
D. Ta ble ........................................................... 1
E. Table Support Bracket ................................ 1
F. Base (T33901) ............................................ 1
G. Base (T33902)............................................ 1
H. Downfeed Handles ..................................... 3
I. Table Height Crank ..................................... 1
J. Chuck Guard .............................................. 1
K. Combo Wrench 24mm ............................... 1
L. Drill Chuck JT3 1⁄8"–5⁄8" .............................. 1
M. Arbor MT#2 x JT3 ...................................... 1
N. Drift Key ...................................................... 1
O. Drill Chuck Key ........................................... 1
P. Hex Wrenches 3, 4, 5mm .....................1 Ea.
Q. Hex Bolts M10-1.5 x 25 (T33901) ............... 4
Hex Bolts M10-1.5 x 30 (T33902) ............... 4
A
D
E
F
H
K L
O
C
G
I J
M
P
Figure 9. Inventory.
B
N
Q
-16-
Model T33901/T33902 (Mfd. Since 07/23)
Page 19
Cleanup
The unpainted surfaces of your machine are
coated with a heavy-duty rust preventative that
prevents corrosion during shipment and storage.
This rust preventative works extremely well, but it
will take a little time to clean.
Be patient and do a thorough job cleaning your
machine. The time you spend doing this now will
give you a better appreciation for the proper care
of your machine's unpainted surfaces.
There are many ways to remove this rust preventative, but the following steps work well in a wide
variety of situations. Always follow the manufac-
turer’sinstructionswithanycleaningproductyou
use and make sure you work in a well-ventilated
area to minimize exposure to toxic fumes.
Before cleaning, gather the following:
• Disposable rags
• Cleaner/degreaser (WD•40 works well)
• Safety glasses & disposable gloves
• Plastic paint scraper (optional)
Basic steps for removing rust preventative:
1.
2. Coat the rust preventative with a liberal
amount of cleaner/degreaser, then let it soak
3.
er is effective, the rust preventative will wipe
off easily. If you have a plastic paint scraper,
scrape off as much as you can first, then wipe
4.
as necessary until clean,
then coat all unpainted surfaces with a quality
or disable start switch or
Refer to the Machine Data Sheet for the weight
and footprint specifications of your machine.
Some workbenches may require additional reinforcement to support the weight of the machine
and workpiece materials.
Consider anticipated workpiece sizes and additional space needed for auxiliary stands, work
tables, or other machinery when establishing a
location for this machine in the shop. Below is
the minimum amount of space needed for the
machine.
Put on safety glasses.
Site Considerations
Workbench Load
Placement Location
25½"
15"
Electrical
=
Connection
=
Min. 30"
Wall
for 5–10 minutes.
Wipe off the surfaces. If your cleaner/degreas-
off the rest with the rag.
Repeat Steps 2–3
metal protectant to prevent rust.
NOTICE
Avoid harsh solvents like acetone or brake
parts cleaner that may damage painted surfaces. Always test on a small, inconspicuous location first.
Model T33901/T33902 (Mfd. Since 07/23)
Figure 10. Minimum working clearances.
Children and visitors may be
seriously injured if unsupervised around this machine.
Lock entrances to the shop
power connection to prevent
unsupervised use.
-17-
Page 20
Bench Mounting
Anchoring machinery to the floor prevents tipping
or shifting and reduces vibration that may occur
during operation, resulting in a machine that runs
slightly quieter and feels more solid.
If the machine will be installed in a commercial or
workplace setting, or if it is permanently connected (hardwired) to the power supply, local codes
may require that it be anchored to the floor.
If not required by any local codes, fastening the
machine to the floor is an optional step. If you
choose not to do this with your machine, we recommend placing it on machine mounts, as these
provide an easy method for leveling and they have
vibration-absorbing pads.
Lag shield anchors with lag screws (see below)
are a popular way to anchor machinery to a concrete floor, because the anchors sit flush with the
floor surface, making it easy to unbolt and move
the machine later, if needed. However, anytime
local codes apply, you MUST follow the anchoring
methodology specified by the code.
Anchoring to Floor
(T33901)
Number of Mounting Holes
Diameter of Mounting Hardware Needed
The T33901 base has holes that allow it to be
fastened to a workbench or other mounting
surface to prevent it from moving during operation
and causing accidental injury or damage.
The strongest mounting option is a "Through
Mount" (see example below) where holes are
drilled all the way through the workbench—and
hex bolts, washers, and hex nuts are used to
secure the machine in place.
............................ 2
..1⁄2"
Hex
Bolt
(T33902)
Number of Mounting Holes ............................ 4
Diameter of Mounting Hardware
.................1⁄2"
Flat Washer
Machine Base
Workbench
Flat Washer
Lock Washer
Hex Nut
Figure 11. "Through Mount" setup.
Another option is a "direct mount" (see example
below) where the machine is secured directly to
the workbench with lag screws and washers.
Lag Screw
Flat Washer
Machine Base
Workbench
Figure 12. "Direct Mount" setup.
-18-
Anchoring to Concrete Floors
Lag Screw
Flat Washer
Machine Base
Concrete
Figure 13. Popular method for anchoring
machinery to a concrete floor.
Model T33901/T33902 (Mfd. Since 07/23)
Lag Shield Anchor
Drilled Hole
Page 21
Assembly
The machine must be fully assembled before it
can be operated. Before beginning the assembly
process, refer to
and gather
all
To ensure the assembly process
goes smoothly, first clean any
ered or coated in heavy-duty rust preventative (if
applicable).
listed items.
Needed for Setup
parts that are cov-
T33902: Attach column assembly to base with
(4) M10-1.5 x 30 hex bolts (see Figure 15).
Column
Assembly
x 4
HEAVY LIF T!
Straining or crushing injury
may occur from improperly
lifting machine or some of
its parts. To reduce this risk,
get help from other people
and use a forklift (or other
lifting equipment) rated for
weight of this machine.
To assemble machine:
1. T33901: Attach column assembly to base with
(4) M10-1.5 x 25 hex bolts (see Figure 14).
Column
Assembly
x 4
Base
Figure 15. T33902 column assembly attached to
base.
2. Mark top of rack, as shown in Figure 16, to
keep track of which end is up.
Loosen set screw shown in Figure 16 to
3.
remove column collar.
Column
Collar
Rack
Base
Figure 14. T33901 column assembly attached to
base.
Model T33901/T33902 (Mfd. Since 07/23)
Figure 16. Example of marking top of rack.
-19-
Page 22
4. Place rack inside of table support bracket,
mesh it with pinion, and slide bracket over
column, as shown in Figure 17.
Table Support Bracket
6. With lifting help, carefully lift headstock and
slide it onto column (see Figure 19).
Figure 17. Example of sliding table support
bracket and rack over column.
Slide column collar over column with beveled
5.
edge facing down, as shown in Figure 18,
then fit beveled edge of collar over rack and
tighten set screw to secure.
Beveled
Edge
Figure 18. Correct column collar orientation.
Note: Do not overtighten screw or you may
split collar. Also make sure rack is seated
firmly between collar and column base.
Figure 19. Headstock placed on column and
location of headstock set screws.
7. Use measuring tape or ruler to find and mark
center of base, then suspend plumb bob from
center of headstock spindle over base, as
shown in Figure 20.
Plumb
Bob
Figure 20. Example of aligning headstock with
center of base.
8. Adjust headstock on column until it is directly
over center of base, as indicated by plumb
bob, then secure headstock by tightening (2)
set screws shown in Figure 19.
-20-
Model T33901/T33902 (Mfd. Since 07/23)
Page 23
An arbor is included for the drill chuck that
comes with this machine. The following procedure
describes how to install the arbor in the chuck.
After the arbor is installed in the drill chuck, it
is very difficult to separate the assembly. If you
would like to use a different chuck in the future,
we recommend obtaining a new arbor.
IMPORTANT: DO NOT install the drill chuck
and arbor assembly
AFTER
the test run.
To join drill chuck and arbor:
1.
clean drill
chuck and arbor mating surfaces, especially
2.
3.
4. Hold assembly by the arbor and tap chuck
onto a block of wood with medium force, as
5. Attempt to separate drill chuck and arbor by
hand —if they separate, repeat Steps 3–4.
9.
Install table height crank over worm shaft
shown in Figure 21, then tighten set screw in
crank against flat part of shaft to secure.
Install table in table support bracket, then
10.
tighten table pivot lock handle to secure (see
Figure 21).
Table
Figure 21. Table and table height crank installed.
11. Place chuck guard over quill and secure by
tightening Phillips head screw and hex nut
(see Figure 22).
Thread downfeed handles into spindle hub
12.
(see Figure 22).
Table Pivot
Lock Handle
Table Height
Crank
Joining Drill Chuck
& Arbor
into the spindle until
Use acetone or lacquer thinner to
the bore.
Retract chuck jaws completely into chuck.
Insert small end of arbor into chuck.
Downfeed
Handle
(1 of 3)
Chuck
Guard
Figure 22. Chuck guard and downfeed handles
installed.
Spindle
Hub
illustrated below.
Figure 23. Tapping drill chuck/arbor on block of
wood.
Model T33901/T33902 (Mfd. Since 07/23)
-21-
Page 24
Test Run
Once assembly is complete, test run the machine
to ensure it is properly connected to power and
safety components are functioning correctly.
If you find an unusual problem during the test run,
immediately stop the machine, disconnect it from
power, and fix the problem BEFORE operating the
machine again. The
table in the
SERVICE section of this manual can help.
DO NOT start machine until all preceding
setup instructions have been performed.
Operating an improperly set up machine
ed results that can lead to serious injury,
Serious injury or death can result from
Troubleshooting
The Test Run consists of verifying the following:
1) The motor powers up and runs correctly, and
2) the switch disabling key disables the switch
properly.
using this machine BEFORE understanding
its controls and related safety information.
DO NOT operate, or allow others to operate,
machine until the information is understood.
To test run machine:
Clear all setup tools away from machine.
1.
2. Connect machine to power supply.
3. Turn machine ON, verify motor operation,
and then turn machine OFF.
Motor should run smoothly and without
unusual problems or noises.
Remove switch disabling key, as shown in
4.
Figure 24.
Figure 24. Removing switch key from ON/OFF
switch.
may result in malfunction or unexpect-
death, or machine/property damage.
-22-
5. Try to start machine with ON/OFF switch.
Machine should not start.
— If machine does not start, switch dis-
abling feature is working correctly.
Congratulations! Test Run is complete.
Complete Spindle Break-in on Page
23 before proceeding with operations.
— If machine does start, immediately stop
machine. Switch disabling feature is not
working correctly. This safety feature must
work properly before proceeding with regular operations. Call Tech Support for
help.
Model T33901/T33902 (Mfd. Since 07/23)
Page 25
Spindle Break-In
To perform spindle break-in:
Make sure spindle area is free of obstructions.
1.
The spindle break-in procedure distributes lubrication throughout the bearings to reduce the risk
of early bearing failure if there are any "dry" spots
or areas where lubrication has settled in the bearings. You must complete this procedure before
placing operational loads on the spindle for the
first time when the machine is new or if it has been
sitting idle for longer than 6 months.
Always start the spindle break-in at the lowest
speed to minimize wear if there are dry spots.
Allow the spindle to run long enough to warm up
and distribute the bearing grease, then incrementally increase spindle speeds and repeat this process at each speed until reaching the maximum
spindle speed. Following the break-in procedure
in this progressive manner helps minimize any
potential wear that could occur before lubrication
is fully distributed.
Complete spindle bearing break-in procedure to prevent rapid wear and tear of spindle components once drill press is placed
into operation.
2. Configure V-belts for a spindle speed of
340 RPM. Refer to Changing Spindle Speed
on Page 28.
Connect machine to power and run spindle
3.
for 10 minutes.
Turn machine OFF, allow spindle to come
4.
to a complete stop, then DISCONNECT
MACHINE FROM POWER!
Configure V-belts for spindle speed of 530
5.
RPM (refer to Changing Spindle Speed on
Page 28), then connect machine to power.
Run spindle for 5 minutes at 530 RPM.
6.
Repeat Steps 4–6 for each speed listed
7.
below in progressive order.
a. 1380 RPM
b. 1860 RPM
c. 2860 RPM
Turn machine OFF.
8.
Congratulations! Spindle break-in is now complete.
Model T33901/T33902 (Mfd. Since 07/23)
-23-
Page 26
SECTION 4: OPERATIONS
The purpose of this overview is to provide the
novice machine operator with a basic understanding of how the machine is used during operation,
so the
discussed
later in this manual
Due to the generic nature of this overview, it is
not intended to be an instructional guide. To learn
more about specific operations, read this entire
manual,
training from experienced
machine operators, and do additional research
outside of this manual by reading "how-to" books,
trade magazines, or websites.
To reduce your risk of
serious injury, read this
entire manual BEFORE
Keep hair, clothing, and
ing parts at all times.
Entanglement can result
in death, amputation, or
using machine.
To reduce risk of eye or face injury from
flying chips, always wear approved safety
glasses and a face shield when operating
this machine.
Operation Overview
machine controls/components
are easier to understand.
seek additional
1. Examines workpiece to make sure it is suit-
able for drilling.
jewelry away from mov-
severe crushing injuries!
If you are not experienced with this type
of machine, WE STRONGLY RECOMMEND
that you seek additional training outside of
this manual. Read books/magazines or get
formal training before beginning any projects. Regardless of the content in this section, Grizzly Industrial will not be held liable
for accidents caused by lack of training.
Puts on required safety glasses and face
2.
shield.
Firmly secures workpiece to table using a
3.
vise or T-slot clamps.
Installs correct drill bit for operation.
4.
5. Adjusts table to correct height, then locks it in
place.
Selects appropriate spindle speed according
6.
to drill bit speed chart located on Page 27,
and adjusts belts to required pulley sheaves.
Connects machine to power, and turns
7.
machine ON.
Performs drilling operation.
8.
9. When finished, turns machine OFF and dis-
connects it from power.
-24-
Model T33901/T33902 (Mfd. Since 07/23)
Page 27
Installing/Removing
5. Use acetone or lacquer thinner to clean mat-
ing surfaces of arbor and spindle socket.
Arbor
Usually, once the chuck and arbor have been
properly mounted together, they are considered
semi-permanent connections. If you would like to
install a different chuck, we recommend getting a
new arbor for that chuck.
Installing Arbor in Spindle
Items Needed Qty
Phillips Head Screwdriver #2 ............................ 1
Open-End Wrench 7mm
Acetone or Lacquer Thinner
Rubber Mallet
To install arbor in spindle:
1. DISCONNECT MACHINE FROM POWER!
2. Loosen screw and hex nut shown in Figure
25 to slide chuck guard off of quill and
remove.
.................................................... 1
.................................... 1
.............. As Needed
6. Slide arbor into spindle socket while slowly
rotating chuck to line up tang on arbor with
slot in socket (see Figure 26).
Spindle Socket
Arbor Tang
Figure 26. Example of arbor tang aligned with
spindle socket.
7. Strike face of chuck from below with rubber-
faced mallet to seat arbor in spindle.
Chuck Guard
Figure 25. Location of chuck guard fasteners.
3. Join chuck and arbor (refer to Joining Drill
Chuck & Arbor on Page 21).
4. Rotate chuck on arbor until chuck jaws retract
into drill chuck body.
8. Check seat by gently pulling down on chuck.
9. Install chuck guard, then tighten screw and
hex nut from Step 2 to secure.
Tip: Use table to hold guard in place while
you tighten fasteners.
Scan this code to see a video of this installation process!
Model T33901/T33902 (Mfd. Since 07/23)
-25-
Page 28
Removing Arbor from Spindle
The arbor can be removed to install other Morse
Taper #2 tooling in the spindle. A drift key is
included to help remove the arbor or other tooling
from the spindle.
Items Needed Qty
Drift Key ............................................................. 1
Metal Hammer
Towel or Cloth
To remove arbor from spindle:
................................................... 1
.................................... As Needed
Outer Slot
Inner Slot
1. DISCONNECT MACHINE FROM POWER!
2. Rotate downfeed handles until drift key slot is
exposed in side of quill (see Figure 27).
Drift Key
Slot
Figure 27. Example of drift key slot exposed.
Move table up until it is 1⁄4" below bottom of
3.
chuck, and place towel or cloth under chuck.
4. Rotate spindle until inner drift key slot is
aligned with outer slot (see Figure 28). You
will see through spindle when slot is properly
aligned.
Figure 28. Example of inner and outer drift key
slots aligned.
5. Insert drift key into drift key slot, then tap drift
key with metal hammer (see Figure 29) until
chuck releases.
Figure 29. Example of using drift key to remove
arbor from spindle.
6. Use downfeed handles to retract quill back
into headstock.
-26-
Model T33901/T33902 (Mfd. Since 07/23)
Page 29
Choosing Spindle Speed
Using Drill Bit Speed Chart
The chart shown in Figure 28 is intended as a
generic guide only. Always follow the manufacturer's speed recommendations if provided with
your drill bits, cutters, or hole saws. Exceeding
the recommended speeds may be dangerous to
the operator.
The speeds shown here are intended to get you
started. The optimum speed will always depend
on various factors, including tool diameter, drilling
pressure, material hardness, material quality, and
desired finish.
Often, when drilling materials other than wood,
some type of lubrication is necessary.
Lubrication Suggestions
Wood ...........................................................None
Plastics
Brass
Aluminum
Mild Steel
Larger bits turning at slower speeds tend
to grab workpiece aggressively. This can
result in operator's hand being pulled into
bit or workpiece being thrown with great
force. Always clamp workpiece to table to
prevent reduce risk of injury.
............................................Soapy Water
...............................Water-Based Lubricant
..................... Paraffin-Based Lubricant
............................. Oil-Based Lubricant
Figure 30. Drill bit speed chart (RPMs).
Model T33901/T33902 (Mfd. Since 07/23)
-27-
Page 30
Changing
6. Rotate belt tension lever counterclockwise to
take tension off V-belts (see Figure 32).
Spindle Speed
The spindle has twelve speeds that operate
between 340–2860 RPM. Spindle speed is controlled by the configuration of V-belts and pulleys
located inside the belt cover (refer to the speed
chart located under the belt cover).
Use care when changing V-belts as they
could pinch your fingers. They may also
get hot after extended use so wait to
change speeds if drill has been in use.
Tools Needed Qty
Open-End Wrenches 14mm .............................. 2
To change spindle speed:
1. DISCONNECT MACHINE FROM POWER!
— If V-belt is cracked, torn, excessively worn,
or damaged, replace it.
Belt Tension
Lever
Figure 32. Location of belt tension lever.
7. Move V-belts onto desired sheaves on motor,
idler, and spindle pulleys (see Figure 33).
Motor Pulley
Idler Pulley
2. Open belt cover.
3. Determine correct spindle speed for
operation (see Choosing Spindle Speed on
Page 27).
4. Loosen (2) belt tension lock knobs (see
Figure 31).
5. Adjust hex nut shown in Figure 31 away from
headstock, then tighten hex bolt shown in
Figure 31 into headstock.
Belt Tension
Lock Knob
(1 of 2)
Spindle Pulley
V-Belts
Figure 33. V-belt components.
For Example: As indicated on speed chart
inside belt cover, a belt combination of B-3
creates 790 RPM. "B" refers to belt position
between spindle and idler pulley. "3" refers to
belt position between idler and motor pulley.
8. Rotate belt tension lever clockwise until
V-belts are tight, then tighten belt tension lock
knobs.
9. Loosen hex bolt from Step 5 until it contacts
motor mount, then adjust hex nut against
headstock to secure.
Figure 31. Location of belt tension controls.
-28-
10. Close belt cover.
Model T33901/T33902 (Mfd. Since 07/23)
Page 31
Installing/Removing
Adjusting
Drill Bit
Any drill bit you install in the chuck must be
tight enough that it will not come loose during
operation.
Items Needed Qty
Chuck Key ......................................................... 1
Rag ................................................................... 1
Installing Drill Bit
1.
DISCONNECT MACHINE FROM POWER!
2. Open drill chuck wide enough to accept
shank of drill bit.
Insert drill bit as far as possible into chuck
3.
WITHOUT allowing chuck jaws to touch
fluted portion of bit, then hand-tighten chuck.
Note: Make sure small bits are not trapped
between edges of two jaws; if they are, reinstall drill bit or it will not be secure enough
to use for drilling.
Depth Stop
The Model T33901/T33902 has a depth stop that
allows you to drill repeat non-through holes to the
same depth every time. The scale on the front of
the depth stop shows the depth in inches.
The depth stop consists of a threaded rod
attached to the quill with a depth stop nut that
can be lowered or raised against a stop bracket
to control drilling depth. Figure 35 shows the
various components of the depth stop.
Quick-Release
Depth Stop
Nut
Stop Bracket
Button
Threaded Rod
w/Scale
Tighten chuck firmly with chuck key (see
4.
Figure 34), then remove chuck key from
chuck.
Figure 34. Example of tightening chuck with
chuck key.
Removing Drill Bit
1. DISCONNECT MACHINE FROM POWER!
Figure 35. Depth stop components.
To adjust depth stop:
Lower drill bit to required height.
1.
2. Thread depth stop nut down against stop
bracket.
Tip: Press quick-release button on depth
stop nut to quickly adjust nut up or down on
rod.
Note: Scale on depth stop can be calibrated
if it gets moved or has changed since the factory setting. Refer to Calibrating Depth Stop
on Page 40 for instructions on how this is
done.
2. Use chuck key to open drill chuck, and catch
drill bit with rag to protect your hands.
Model T33901/T33902 (Mfd. Since 07/23)
-29-
Page 32
Positioning Table
The table moves vertically, rotates 360° around its
center, rotates 360° around the column, and tilts
45° left or right. Remove any loose objects from
the table surface before adjusting the table position using the controls shown in Figure 36.
Table
Height
Crank
Table Pivot
Lock Handle
Rotating Table Around Column
1. Loosen table lock handle (see Figure 36).
. Rotate table to desired location on column,
2
making sure to guide column rack with table
(see Figure 37), then tighten table lock handle to secure.
Rack
Figure 37. Location of column rack.
Table Height
Lock Handle
Pointer
Tilt Scale
Figure 36. Table adjustment components.
Raising/Lowering Table
1
. Loosen table height lock handle (see
Figure 36).
. Raise or lower table by rotating table height
2
crank (see Figure 36), then tighten table
height lock handle to secure.
Rotating Table Around Center
1. Loosen table pivot lock handle (see
Figure 36).
Tilting Table
Tool Needed Qty
Wrench or Socket 24mm ................................... 1
To tilt table:
1. Loosen hex bolt shown in Figure 38.
Figure 38. Location of tilt lock hex bolt.
. Tilt table until pointer aligns with desired
2
angle on scale (see Figure 36).
. Rotate table to desired position, then tighten
2
table pivot lock handle to secure.
-30-
. Tighten hex bolt from Step 1 to secure table
3
angle.
Model T33901/T33902 (Mfd. Since 07/23)
Page 33
Adjusting
Laser Guide
The laser guide should be checked and adjusted
for accuracy when you change drill bits, raise or
lower the table, or change workpiece thickness.
— If laser crosshairs align with indentation
you made in Step 5 (see Figure 40), no
adjustment is necessary.
— If laser crosshairs do not align with inden-
tation you made in Step 5 (see Figure
40), proceed to Step 7.
DO NOT look directly into laser. Eye injury
may result.
Tool Needed Qty
Hex Wrench 3mm .............................................. 1
To adjust laser guide:
1. DISCONNECT MACHINE FROM POWER!
Install drill bit in chuck (see Installing/
2.
Removing Drill Bit on Page 29).
Clamp workpiece to table.
3.
Adjust table so workpiece is just below drill
4.
bit, then lock table in position.
Lower drill bit so it touches workpiece, mak-
5.
ing slight indentation in surface, then raise
bit.
Indentation
Figure 40. Example of laser crosshairs aligned
with indentation on workpiece.
7. Loosen (2) set screws shown in Figure 41,
then adjust laser modules by hand, positioning them so crosshairs align with indentation
you made in Step 5.
— Turning each laser module will adjust each
crosshair line angle.
— Adjusting laser module position in seat will
adjust crosshair line positions.
. Connect drill press to power. Use laser switch
6
to turn laser guide ON (see Figure 39).
Laser Switch
Figure 39. Location of laser switch.
Model T33901/T33902 (Mfd. Since 07/23)
x 2
Laser
(1 of 2)
Figure 41. Laser module adjustment components.
8. Once crosshairs are aligned with indenta-
tion in workpiece, tighten screws loosened in
Step 7 to secure laser module positions.
-31-
Page 34
ACCESSORIES
Installing unapproved accessories may
order online at www.grizzly.com or call 1-800-523-4777
SECTION 5: ACCESSORIES
cause machine to malfunction, resulting in
serious personal injury or machine damage.
To reduce this risk, only install accessories
recommended for this machine by Grizzly.
NOTICE
Refer to our website or latest catalog for
additional recommended accessories.
SB1365—South Bend Way Oil-ISO 68
T26419—Syn-O-Gen Synthetic Grease
SB1365
G9513—T-Slot Nuts, 4-Pk., 9⁄16" Slot, 3⁄8"-16
G9514—T-Slot Nuts, 4-Pk.,
Heat-treated steel T-slot nuts with black oxide
finish feature an imperfect thread in the base of
the nut to eliminate any danger of screwing the
clamping stud through and damaging the table
slot.
Figure 44. G9514 T-Slot Nuts.
T30015—HSS M35 Cobalt 115-Pc. Drill Bit Set
The bits in this 115-piece set all have 135˚ split
points and fully ground flutes. Fractional sizes
1
⁄16"–1⁄2 " in increments of 1⁄64", letter bits from A–Z,
and 60 number bits.
9
⁄16" Slot, 1⁄2"-13
T26419
Figure 42. Recommended lubrication products.
G5562—SLIPIT® 1 Qt. Gel
G5563—SLIPIT® 11 Oz. Spray
Figure 43. Recommended products for
protecting unpainted cast-iron and steel.
Figure 45. T30015 115-Pc. HSS M35 Cobalt
Drill Bit Set.
-32-
Model T33901/T33902 (Mfd. Since 07/23)
Page 35
SECTION 6: MAINTENANCE
accidental startup, always
disconnect machine from
Cleaning &
To reduce risk of shock or
power before adjustments,
maintenance, or service.
Schedule
For optimum performance from this machine, this
maintenance schedule must be strictly followed.
Ongoing
To minimize your risk of injury and maintain proper
machine operation, shut down the machine immediately if you ever observe any of the items below,
and fix the problem before continuing operations:
• Loose mounting bolts.
• Worn switch.
Worn or damaged wires.
•
• Damaged V-belt.
• Any other unsafe condition.
Weekly Maintenance
• Lubricate quill and column surfaces
(Page 34).
Protecting
Cleaning your drill press is relatively easy. Vacuum
excess wood chips and sawdust, and wipe off the
remaining dust with a dry cloth. If any resin has
built up, use a resin dissolving cleaner to remove
it.
Protect the unpainted cast iron table and base
by wiping it clean after every use—this ensures
moisture from wood dust does not remain on bare
metal surfaces. Keep the table and base rust-free
with regular applications of metal protectant products like SLIPIT
on Page 32).
®
(see Figure 43 in Accessories
Lubrication
An essential part of lubrication is cleaning the
components before lubricating them.
This step is critical because grime and chips build
up on lubricated components, which makes them
hard to move. Simply adding more lubricant will
not result in smooth moving parts.
Monthly Maintenance
• Check V-belt for damage or wear.
• Lubricate column rack and quill rack and
pinion (Page 34).
• Clean/vacuum dust buildup off motor.
Model T33901/T33902 (Mfd. Since 07/23)
Lubricate components with recommended products like those shown in Figure 42 in Accessories
on Page 32.
DISCONNECT MACHINE FROM POWER
BEFORE PERFORMING LUBRICATION!
-33-
Page 36
Quill & Column Surfaces
Oi l Ty pe .... Grizzly SB1365 or ISO 68 Equivalent
Oil Amount
Lubrication Frequency
............................................Thin Coat
...........8 Hrs. of Operation
Column Rack, Quill Rack & Pinion
Grease Type .... Grizzly T26419 or NLGI#2 Equiv.
Grease Amount
Lubrication Frequency
....................................Thin Coat
......... 90 hrs. of Operation
Items Needed Qty
Mineral Spirits .................................... As Needed
Shop Rags
Move the spindle all the way down to access
the smooth surfaces of the quill. Adjust the table
height as necessary to access the entire length of
the column (see Figures 46–47). Clean both with
mineral spirits and shop rags.
Note: Avoid removing the grease from the column
and quill racks during cleaning.
Quill
Surface
......................................... As Needed
Items Needed Qty
Mineral Spirits .................................... As Needed
Shop Rags
Stiff Brushes
Move spindle all the way down to gain access to
quill rack (see Figure 48), then clean teeth with
mineral spirits, shop rags, and a brush.
Clean the column rack teeth (see Figure 48) in
a similar manner with mineral spirits, shop rags,
and a brush.
......................................... As Needed
...................................................... 2
Quill Rack
Figure 46. Example of spindle moved down to
expose quill surface.
Column
Surfaces
Figure 47. Column surface locations.
After cleaning, allow mineral spirits to dry, then
apply a thin coat of oil to the surfaces.
Column Rack
Figure 48. Example of quill and column racks
exposed.
Allow mineral spirits to dry, then use a brush to
apply a thin coat of grease to the rack teeth, then
fully raise/lower the quill and table to distribute the
grease.
-34-
Model T33901/T33902 (Mfd. Since 07/23)
Page 37
Review the troubleshooting procedures in this section if a problem develops with your machine. If you need
replacement parts or additional help with a procedure, call our Technical Support.
the
serial number and manufacture date of your machine before calling.
SECTION 7: SERVICE
Troubleshooting
Motor & Electrical
Symptom Possible Cause Possible Solution
Machine does
not start, or
power supply
breaker
immediately
trips after
startup.
Machine
stalls or is
underpowered.
Machine has
vibration or
noisy operation.
1. Switch disabling key removed.
2. Incorrect power supply voltage or circuit size.
3. Power supply circuit breaker tripped or fuse
blown.
4. Wiring broken, disconnected, or corroded.
5. ON/OFF switch at fault.
6. Motor or motor bearings at fault.
1. Workpiece material unsuitable for machine.
2. Feed rate/cutting speed too fast.
3. Belt(s) slipping/pulleys misaligned.
4. Motor wires connected incorrectly.
5. Pulley slipping on shaft.
6. Machine undersized for task.
7. Motor overheated.
8. Run capacitor at fault.
9. Extension cord too long.
10. Motor or motor bearings at fault.
1. Motor or component loose.
2. V-belt(s) worn, loose, pulleys misaligned or
belt slapping cover.
3. Pulley loose.
4. Motor mount loose/broken.
5. Spindle loose, improperly installed or
damaged.
6. Workpiece loose.
7. Chuck or cutter at fault.
8. Motor fan rubbing on fan cover.
9. Spindle bearings at fault.
10. Motor bearings at fault.
1. Install switch disabling key.
2. Ensure correct power supply voltage and circuit size
(Page 13).
3. Ensure circuit is free of shorts. Reset circuit breaker
and replace fuse.
4. Fix broken wires or disconnected/corroded
connections (Page 43).
5. Replace switch.
6. Replace motor.
1. Only cut wood with moisture below 20% and correct
type/size of metal.
2. Decrease feed rate/cutting speed (Page 28).
3. Clean/tension/replace belt(s) (Page 28); ensure
pulleys are aligned (Page 39).
4. Correct motor wiring connections (Page 43).
5. Tighten/replace loose pulley/shaft.
6. Use sharp bits/reduce feed rate/reduce spindle RPM
(Page 28).
7. Clean motor, let cool, and reduce workload.
8. Test/repair/replace.
9. Move machine closer to power supply; use shorter
extension cord (Page 14).
10. Replace motor.
1. Replace damaged or missing bolts/nuts or tighten if
loose.
2. Inspect/replace belts with a new matched set (Page
28). Realign pulleys if necessary (Page 39).
3. Secure pulley on shaft.
4. Tighten/replace.
5. Tighten loose spindle, re-install spindle ensuring
mating surfaces are clean, replace spindle if damaged.
6. Usecorrectholdingxtureandreclampworkpiece.
7. Replace out-of-round chuck, dull, or bent cutter.
8. Fix/replace fan cover; replace loose/damaged fan.
9. Test by rotating spindle; rotational grinding/loose shaft
requires bearing replacement.
10. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
Note: Please gather
Model T33901/T33902 (Mfd. Since 07/23)
-35-
Page 38
Motor & Electrical (Cont.)
Symptom Possible Cause Possible Solution
LED does not
illuminate.
Laser guide
does not
illuminate.
1. Lens covered with dust.
2. Wiring broken, disconnected, or corroded.
3. LED or LED driver damaged/at fault.
4. LED switch at fault.
1. Lens covered with dust.
2. Wiring broken, disconnected, or corroded.
3. Laser module(s) damaged/at fault.
4. Laser switch at fault.
5. Laser LED driver at fault.
1. Clean lens.
2. Fix broken wires or disconnected/corroded
connections (Page 43).
3. Replace LED and driver assembly (Page 41).
4. Replace switch.
1. Clean lens.
2. Fix broken wires or disconnected/corroded
connections (Page 43).
3. Replace laser module(s) (Page 41).
4. Replace switch.
5. Replace laser LED driver.
Operation
Symptom Possible Cause Possible Solution
Tool falls out or
loose in chuck.
Chuck and
arbor fall out
or loose in
spindle.
Breaking tools
or cutters.
Workpiece or
tool vibrates or
chatters during
operation.
Table hard to
move.
Bad surface
nish.
Spindle
overheats.
Spindle does
not fully retract.
1. Chuck jaws loose.
2. Excessive feed pressure.
1. Debris on chuck, arbor, or in spindle taper.
2. Excessive feed pressure.
1. Spindle speed/feed rate too fast.
2. Taking too big of cut at one time.
3. Improper cutting technique or type of cut for
tool/machine.
4. Cutting tool too small.
5. Cutting tool getting too hot.
6. Spindle extended too far down during or at
beginning of operation.
1. Spindle extended too far down during or at
beginning of operation.
2. Table lock handles not tight.
3. Workpiece not secure.
4. Spindle speed/feed rate too fast.
5. Quill shaft lock screw not adjusted correctly.
1. Table locked.
2. Dirty or dry rack and pinion.
1. Spindle speed/feed rate too fast.
2. Dull or incorrect cutting tool/bit.
3. Workpiece not secure.
4. Spindle extended too far down during or at
beginning of operation.
1. Machine operated at high speeds for
extended period.
1. Poorly adjusted return spring.
2. Debris on spindle/quill rack.
3. Worn return spring.
1. Tighten chuck jaws.
2. Decrease feed pressure and allow chips to clear.
1. Clean chuck, arbor, and spindle taper, then re-install
(Page 25).
2. Decrease feed pressure and allow chips to clear.
1. Reduce spindle speed (Page 28); reduce feed rate.
2. Decrease feed pressure and allow chips to clear.
3. Use right technique, tool, or machine for job.
4. Use larger cutting tool and slower feed rate.
5. Use coolant or oil for appropriate application; reduce
cutting speed (Page 28).
6. Fully retract spindle and raise table to increase rigidity.
1. Fully retract spindle and raise table to increase rigidity.
2. Tighten table lock handles (Page 30).
3. Properly clamp workpiece on table or in vise.
4. Reduce spindle speed (Page 28); reduce feed rate.
5. Adjust quill shaft lock screw (Page 42).
1. Disengage table locks (Page 30).
2. Clean away chips/debris. Lubricate rack and pinion
(Page 34).
1. Reduce spindle speed (Page 28); reduce feed rate.
2. Sharpen cutting tool or select one that better suits
operation.
3. Properly clamp workpiece on table or in vise.
4. Fully retract spindle and raise table to increase rigidity.
1. Allow drill to cool.
1. Increase return spring tension (Page 38).
2. Clean and lubricate spindle/quill rack (Page 34).
3. Replace return spring.
-36-
Model T33901/T33902 (Mfd. Since 07/23)
Page 39
Operation (Cont.)
Symptom Possible Cause Possible Solution
Drill bit drifts. 1. Dull/incorrectly sharpened drill bit.
2. Tool/bit/chuck incorrectly installed.
Drill bit slips in
chuck or stuck
in workpiece.
Workpiece
thrown from
table.
Excessive
runout or
wobbling in
chuck/drill bit.
Backside of
workpiece
splinters.
1. Chuck jaws loose.
2. Workpiece squeezing drill bit.
3. Feed rate too fast.
4. Spindle speed/feed rate to slow.
1. Workpiece not secure.
2. Tool/bit too large for feed speed.
1. Debris on chuck, arbor, or in spindle taper.
2. Tool/bit bent.
3. Tool/bit installed incorrectly.
4. Spindle bearings worn.
1. Scrap board not installed between table and
workpiece.
1. Correctly sharpen drill bit.
2. Correctly install tool/bit (Page 29)/chuck
(Page 21).
1. Tighten chuck jaws.
2. Properly clamp workpiece on table or in vise.
3. Decrease feed rate.
4. Increase spindle speed (Page 28)/feed rate.
1. Properly clamp workpiece in table or in vise.
2. Use smaller tool/bit or decrease feed speed.
1. Remove chuck and arbor, clean chuck, arbor, and
spindle taper, then re-install (Page 25). Deburr
mating surfaces, if necessary.
2. Replace with straight tool/bit.
3. Install tool/bit correctly (Page 29) or replace.
4. Replace spindle bearings.
1. Install scrap board between table and workpiece.
Model T33901/T33902 (Mfd. Since 07/23)
-37-
Page 40
Adjusting Return
Spring Tension
The spring tension for automatic quill recoil has
been pre-set at the factory. In most cases, it will
never need to be re-adjusted during the life of the
machine. However, if the quill stops automatically
recoiling, the spring may need to be adjusted for
additional tension. If it does need adjustment, the
spring housing is located on the left side of the
headstock (see Figure 49).
Spring
Cover
2.
Wipe any oil off spring cover so it does not slip
in your fingers in following steps (see Figure
49).
3. Hold spring cover against side of headstock
so cover stays splined with locking screw, then
loosen jam nut and cover nut approximately
1
⁄4" each (see Figure 49).
IMPORTANT: Hold spring cover tightly dur-
ing Step 4, or force of spring will cause cover
to spin out of your hands.
4. Wearing gloves, pull spring cover outward
just enough to disengage spring cover notch
from locking screw (see Figure 49).
5. Rotate cover counterclockwise to increase
tension, or clockwise to reduce spring tension.
Jam Nut &
Cover Nut
Spring Cover Notch
& Locking Screw
Figure 49. Spring adjustment components.
If return spring should come
loose from spring cover and
rapidly unwind, laceration
or impact injuries could
occur. Always wear heavy
leather gloves and safety
glasses when adjusting
return spring tension.
Items Needed Qty
Heavy Leather Gloves ..................................1 Pr.
Safety Glasses
Shop Rags
Open-End Wrenches 19mm
To adjust spring tension:
.............................................1 Pr.
......................................... As Needed
.............................. 2
6. Engage next available spring cover notch
with locking screw (see Figure 50) and hold
spring cover tightly to side of headstock.
Spring Cover
Notches
(2 of 6)
Locking
Screw
Figure 50. Location of spring cover notches and
locking screw.
7. Tighten cover nut against spring cover just
until nut stops, then back off nut approximately
1
⁄3 turn.
8. Hold cover nut and tighten jam nut against
cover nut.
Check tension adjustment by downfeeding
9.
spindle. Spindle should return quickly when
downward pressure is released.
1. DISCONNECT MACHINE FROM POWER!
-38-
— If spindle does not retract quickly, repeat
Steps 3–8, and re-check tension until
return speed is adequate.
Model T33901/T33902 (Mfd. Since 07/23)
Page 41
Aligning
Motor Pulley
Pulley alignment is an important factor in power
transmission and belt life. The pulleys should
be parallel to each other and in the same plane
(coplanar) for optimum performance.
Use a straightedge to check the pulley alignment,
as shown in Figure 51. The motor pulley can be
adjusted by loosening the set screw that secures
it to its shaft.
Straightedge
3.
Place straightedge against motor and idler
pulleys (see Figure 52) and check that they
are aligned. There should be no space anywhere between straightedge and pulleys.
Motor Pulley
Idler Pulley
Figure 52. Location of alignment pulleys and
motor pulley set screw.
— If pulleys are aligned, no adjustment is
necessary. Close belt cover.
Pulleys
Figure 51. Example of checking pulley
alignment.
Tools Needed Qty
Hex Wrench 4mm .............................................. 1
Straightedge 12"
To align motor pulley:
1. DISCONNECT MACHINE FROM POWER!
2. Open belt cover.
................................................ 1
— If pulleys are not aligned, proceed to
Step 4.
Use care when handling V-belts as they
could pinch your fingers. They may also
get hot after extended use so wait to handle if drill has been in use.
4. Loosen set screw on motor pulley, adjust
pulley on shaft until it aligns with idler pulley,
then tighten set screw (see Figure 52).
5. Close belt cover.
Model T33901/T33902 (Mfd. Since 07/23)
-39-
Page 42
Calibrating
Depth Stop
The depth stop allows you to drill multiple holes at
the same depth. The scale on this depth stop can
be calibrated if it ever becomes incorrect.
Tool Needed Qty
Wrench or Socket 19mm ................................... 1
To calibrate depth stop:
DISCONNECT MACHINE FROM POWER!
1.
Loosen hex nut shown in Figure 54.
3.
Adjust depth rod up in depth collar a couple
4.
turns (see Figure 54).
Depth Rod
2. Adjust depth stop nut all the way down so it
sits against stop bracket (see Figure 53).
Depth Stop
Nut
Stop Bracket
Figure 53. Example of depth stop nut adjusted all
the way down.
— If top of depth stop nut indicates 0" on
scale, no adjustment is necessary.
Depth
Collar
Figure 54. Depth stop calibration components.
Adjust depth stop nut until top of nut indicates
5.
0" on scale.
Adjust depth rod until depth stop nut sits
6.
against stop bracket and scale is visible.
While holding depth rod in place, tighten hex
7.
nut from Step 3 to secure setting.
Test depth stop by measuring how far spindle
8.
moves with respect to where you set depth
stop nut.
— If top of depth stop nut does not indicate 0"
on scale, proceed to Step 3.
-40-
Model T33901/T33902 (Mfd. Since 07/23)
Page 43
Replacing Laser
120V MOTOR
Run
Capacitor
CBB60
65µF
300VAC
Ground
Modules & LED
If either one of the laser modules or the LED
burns out and needs to be replaced, use the following sections. A wiring diagram is provided on
Page 44 for your reference.
. Disconnect faulty laser module wires from
4
their wire nut connections (see Figure 56),
then fully remove laser module from headstock, pulling wires with it.
LED Driver
Wire Nuts
(3-5)X1W
Replacing Laser Module
Items Needed Qty
Hex Wrench 3mm .............................................. 1
Replacement Laser Module (#PT33901097)
Electrical Tape
Cable Ties
To replace laser module:
................................... As Needed
......................................... As Needed
..... 1
1. DISCONNECT MACHINE FROM POWER!
2. Loosen set screw securing faulty laser mod-
ule and pull laser module just enough to
remove it from headstock (see Figure 55).
. Turn light seat counterclockwise to release
3
LED assembly and pull it down through headstock hole to reveal laser module and LED
wires (see Figure 55).
Light
Seat
Laser Module
(1 of 2)
Laser
Module
Wires
Laser Modules
DKLD LDBXQ03B
LED
XINGZHEN 12V 3W
Figure 56. Laser module wiring.
. Insert new laser module wires up through
5
hole in headstock, and attach wires to wire
nuts as they were connected in Step 4. Wrap
wires at wire nuts with electrical tape so they
will not come loose during operation.
. Bind any stray laser module or LED wires and
6
cords together with electrical tape or cable
ties to keep electrical components from being
caught in moving headstock parts.
. Feed laser module and LED wires and cords
7
back into headstock, install light seat in headstock, then turn clockwise to secure.
. Refer to Adjusting Laser Guide on Page
8
31 to secure and adjust laser module.
Figure 55. Location of laser modules and light
seat.
Model T33901/T33902 (Mfd. Since 07/23)
Replacing LED
Items Needed Qty
Replacement LED (#PT33901099-1) ................. 1
Electrical Tape or Cable Ties
To replace LED:
DISCONNECT MACHINE FROM POWER!
1.
............ As Needed
-41-
Page 44
2. Turn light seat counterclockwise to release
seat and pull it down through headstock hole
(see Figure 57).
Light
Seat
Figure 57. Location of light seat.
3. Move light seat tabs away from LED to
remove LED from light seat (see Figure 58).
Disconnect LED from wire connector shown
4.
in Figure 58 and replace with new LED.
Adjusting Quill Shaft
Lock Screw
While you may never have to adjust the quill shaft
lock screw (see Figure 59), you should understand its function and know how to adjust it should
you ever need to remove the quill for cleaning.
This screw can prevent the quill from rotating or
from retracting into the headstock. If it is adjusted
incorrectly, the quill may lash or bind.
LED
Light Seat
Figure 58. LED disconnect components.
5. Install new LED in light seat.
6. Bind any stray laser module or LED wires and
cords together with electrical tape or cable
ties to keep electrical components from being
caught in moving headstock parts.
. Feed laser module and LED wires and cords
7
back into headstock, install light seat in headstock, then turn clockwise to secure.
Light Seat Tab
(1 of 2)
Wire Connector
Figure 59. Location of quill shaft lock screw and
jam nut.
Tools Needed Qty
Open-End Wrench 14mm .................................. 1
Flat Head Screwdriver
To adjust quill shaft lock screw:
DISCONNECT MACHINE FROM POWER!
1.
2. Clean and lubricate quill as described in
Lubrication on Page 33. Quill should
travel freely.
. Loosen jam nut shown in Figure 59.
3
. Turn quill shaft lock screw (see Figure 59)
4
clockwise or counterclockwise to establish
free, unbinding travel while moving quill up
and down through its entire range of travel.
. When lock screw is screwed inward as far as
5
the screw can go without binding quill, hold
screw in place and tighten jam nut.
. Check for quill binding and looseness while
6
moving quill up and down through its entire
range of travel and readjust as required.
1
⁄4" .................................. 1
-42-
Model T33901/T33902 (Mfd. Since 07/23)
Page 45
These pages are current at the time of printing. However, in the spirit of improvement, we may make changes to the electrical systems of future machines. Compare the manufacture date of your machine to the one
stated in this manual, and study this section carefully.
If there are differences between your machine and what is shown in this section, call Technical Support at
(570) 546-9663 for assistance BEFORE making any changes to the wiring on your machine. An updated
wiring diagram may be available.
number and manufacture date of your
machine before calling. This information can be found on the main machine label.
machine
SECTION 8: WIRING
Note: Please gather the serial
Wiring Safety Instructions
SHOCK HAZARD. Working on wiring that is con-
nected to a power source is extremely dangerous.
Touching electrified parts will result in personal
injury including but not limited to severe burns,
electrocution, or death. Disconnect the power
from the machine before servicing electrical components!
MODIFICATIONS. Modifying the wiring beyond
what is shown in the diagram may lead to unpredictable results, including serious injury or fire.
This includes the installation of unapproved aftermarket parts.
WIRE CONNECTIONS. All connections must
be tight to prevent wires from loosening during
machine operation. Double-check all wires disconnected or connected during any wiring task to
ensure tight connections.
CIRCUIT REQUIREMENTS. You MUST follow
the requirements at the beginning of this manual
when connecting your machine to a power source.
WIRE/COMPONENT DAMAGE. Damaged wires
or components increase the risk of serious personal injury, fire, or machine damage. If you notice
that any wires or components are damaged while
performing a wiring task, replace those wires or
components.
MOTOR WIRING. The motor wiring shown in
these diagrams is current at the time of printing
but may not match your machine. If you find this
to be the case, use the wiring diagram inside the
motor junction box.
CAPACITORS/INVERTERS. Some capacitors
and power inverters store an electrical charge for
up to 10 minutes after being disconnected from
the power source. To reduce the risk of being
shocked, wait at least this long before working on
capacitors.
EXPERIENCING DIFFICULTIES. If you are experiencing difficulties understanding the information
included in this section, contact our Technical
Support at (570) 546-9663.
The photos and diagrams
included in this section are
best viewed in color. You
can view these pages in
color at www.grizzly.com.
Model T33901/T33902 (Mfd. Since 07/23)
-43-
Page 46
Wiring Diagram
Neutral
Hot
Ground
Ground
120 VAC
5-15 Plug
Ground
Run
Capacitor
CBB60
65µF
300VAC
120V MOTOR
Laser LED Driver
LED-5V700 5V
-44-
ON/OFF Switch
DKLD AN17
−+
HOPESTAR
NL
SWITCH BOX
READ ELECTRICAL SAFETY
20A 125V
ON PAGE 43!
LED Switch
DKLD AN-18
Laser Switch
DKLD AN-18
HEADSTOCK
LED Driver
(3-5)X1W
Laser Modules
DKLD LDBXQ03B
LED
XINGZHEN 12V 3W
Model T33901/T33902 (Mfd. Since 07/23)
Page 47
Electrical Component Photos
Figure 60. Switch box wiring.
Figure 62. Capacitor wiring.
Figure 63. LED driver wiring.
Figure 61. LED & laser module wiring.
Model T33901/T33902 (Mfd. Since 07/23)
READ ELECTRICAL SAFETY
ON PAGE 43!
-45-
Page 48
1
4
70-14
We do our best to stock replacement parts when possible, but we cannot guarantee that all parts shown
are available for purchase. Call (800) 523-4777 or visit www.grizzly.com/parts to check for availability.
70-13
70-12
70-11
70-10
126
70-1
70-7
125
70-2
50
53
70-6
70-8
SECTION 9: PARTS
T33901 Main
49
51
54
55
56
70-3
70-4
70-5
70-9
128
127
33-2
46
52
59
57
70
33-1
42
45
41
4748
58
43
44
34
11
16
18
19
20
60
65
67
12
33
61
63
66
14
17
37
38
40
62
64
68
15
13
36
97
120
121
124
39
69
35
25
31
32
122
6
8
10
94
99-1
99-2
99
98
119
123
30
114
95
105
118
9
27
93
5
87
89
103
106
7
26
86
73
88
104
108
115
116
29
90
21
75
100
109
113
117
2
22
24
3
23
72
91
92
107
110
71
28
79
74
112
111
85
80
76
102
81
77
84-3
78
84-2
101
129
82
83
84
84-1
84-4
84-5
-46-
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Model T33901/T33902 (Mfd. Since 07/23)
Page 49
T33901 Main Parts List
REF PART # DES CRIPTI ON REF PART # DES CRIPTI ON
1 PT33901001 V-BELT A-565 55 PT33901055 DEPTH COLLAR
2 PT33901002 MOTOR PULLEY 56 PT33901056 HEX NUT M12-1.75
3 PT33901003 SET SCREW M8-1.25 X 10 57 PT33901057 HEX NUT M6-1
4 PT33901004 BALL BEARING 6202-2RS 58 PT33901058 CAP SCREW M6-1 X 45
5 PT33901005 IDLER PULLEY 59 PT33901059 SET SCREW M6-1 X 10
6 PT33901006 CRANKSHAFT 60 PT33901060 EXT RETAINING RING 17MM
7 PT33901007 BELT COVER 61 PT33901061 SPACER 47 X 59 X 2.5MM RUBBER
8 PT33901008 KNOB BOLT M5-.8 X 8, D20, ROUND KD 62 PT33901062 BALL BEARING 6203-2RS
9 PT33901009 INT TOOTH WASHER 5MM 63 PT33901063 QUILL
10 PT33901010 ACORN NUT M5-.8 64 PT33901064 DRIFT KEY
11 PT33901011 SPINDLE PULLEY 65 PT33901065 BALL BEARING 6204-2RS
12 PT33901012 V-BELT A-565 66 PT33901066 SPINDLE MT#2
13 PT33901013 HEX NUT M24-1.5 LH THIN 67 PT33901067 DRILL CHUCK ARBOR MT#2 X JT3
14 PT33901014 SPINDLE SLEEVE 68 PT33901068 DRILL CHUCK JT3 X 1/8-5/8
15 PT33901015 BALL BEARING 6005-2RS 69 PT33901069 DRILL CHUCK KEY 5/16" SE 12T SD-11/16"
16 PT33901016 SPACER 41 X 47 X 12MM 70 PT33901070 CHUCK GUARD ASSEMBLY
17 PT33901017 HEX NUT M5-.8 70-1 PT33901070-1 HEX NUT M4-.7
18 PT33901018 CORD CLAMP LARGE 70-2 PT33901070-2 CHUCK GUARD COLLAR
19 PT33901019 FLAT WASHER 5MM 70-3 PT33901070-3 HEX NUT M6-1
20 PT33901020 PHLP HD SCR M5-.8 X 16 70-4 PT33901070-4 PHLP HD SCR M4-.7 X 30
21 PT33901021 TAP SCREW M4.2 X 12 70-5 PT33901070-5 TAP SCREW M2.6 X 6
22 PT33901022 CORD CLAMP SMALL 70-6 PT33901070-6 HINGE BRACKET
23 PT33901023 HEX BOLT M8-1.25 X 12 70-7 PT33901070-7 EXTENSION SPRING 0.8 X 6.5 X 30
24 PT33901024 FLAT WASHER 8MM 70-8 PT33901070-8 HEX BOLT M5-.8 X 16
25 PT33901025 GROMMET 5/8" RUBBER 70-9 PT33901070-9 WING NUT M5-.8
26 PT33901026 SPACER 9 X 18 X 2.5MM RUBBER 70-10 PT33901070-10 GUARD LOWER
27 PT33901027 KNOB BOLT M10-1.5 X 25, D33, WING 70-11 PT33901070-11 GUARD UPPER
28 PT33901028 BELT TENSION LEVER 70-12 PT33901070-12 PHLP HD SCR M4-.7 X 35
29 PT33901029 EXT RETAINING RING 15MM 70-13 PT33901070-13 HEX BOLT M6-1 X 20
30 PT33901030 SET SCREW M8-1.25 X 8 70-14 PT33901070-14 LOCK NUT M4-.7
31 PT33901031 HEADSTOCK 71 PT33901071 PIVOT PIN 7 X 12, 10.5 X 19MM
32 PT33901032 STUD-SE M4-.7 X 8, 13.5 SLOTTED 72 PT33901072 BELT TENSION BLOCK
33 PT33901033 RETURN SPRING ASSEMBLY 73 PT33901073 SET SCREW M8-1.25 X 10
33-1 PT33901033-1 RETURN SPRING COVER 74 PT33901074 SLIDE BAR LEFT
33-2 PT33901033-2 FLAT COIL SPRING 75 PT33901075 SLIDE BAR RIGHT
34 PT33901034 HEX NUT M12-1.75 THIN 76 PT33901076 HEX BOLT M8-1.25 X 20
35 PT33901035 EXT TOOTH WASHER 5MM 77 PT33901077 FLAT WASHER 8MM
36 PT33901036 FLAT WASHER 5MM 78 PT33901078 MOTOR MOUNT
37 PT33901037 LOCK WASHER 5MM 79 PT33901079 FLAT WASHER 12MM
38 PT33901038 PHLP HD SCR M5-.8 X 8 80 PT33901080 LOCK WASHER 12MM
39 PT33901039 TRANSFORMER HOPESTAR LED-5V700 5V 81 PT33901081 HEX NUT M12-1.75
40 PT33901040 PHLP HD SCR M4-.7 X 8 82 PT33901082 HEX NUT M8-1.25
41 PT33901041 LIGHT ON/OFF SWITCH DKLD AN-18 RED 83 PT33901083 FLAT WASHER 8MM
42 PT33901042 LASER ON/OFF SWITCH DKLD AN-18 BLACK 84 PT33901084 MOTOR 3/4HP 120V 1-PH
43 PT33901043 SWITCH BOX 84-1 PT33901084-1 MOTOR FAN COVER
44 PT33901044 CAP SCREW M6-1 X 12 84-2 PT33901084-2 MOTOR FAN
45 PT33901045 SWITCH PLATE 84-3 PT33901084-3 R CAPACITOR 65M 300V 1-5/8 X 2-7/8
46 PT33901046 ON/OFF SWITCH DKLD AN17 84-4 PT33901084-4 CAPACITOR COVER
47 PT33901047 TAP SCREW M3.5 X 10 84-5 PT33901084-5 BALL BEARING 6203-2RS
48 PT33901048 DEPTH STOP NUT M12-1.75 85 PT33901085 POWER CORD 16G 3W 70" 5-15P
49 PT33901049 COMPRESSION SPRING 1.2 X 14 X 11.5 86 PT33901086 HEX BOLT M8-1.25 X 25
50 PT33901050 QUICK-RELEASE BUTTON 87 PT33901087 HEX NUT M8-1.25
51 PT33901051 DEPTH SCALE 88 PT33901088 ROLL PIN 6 X 20
52 PT33901052 THREADED DEPTH ROD 89 PT33901089 SET SCREW M10-1.5 X 12
53 PT33901053 FLAT HD SCR M6-1 X 12 90 PT33901090 CHUCK KEY SEAT
54 PT33901054 DEPTH STOP BRACKET 91 PT33901091 FLAT WASHER 5MM
Model T33901/T33902 (Mfd. Since 07/23)
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-47-
Page 50
T33901 Main Parts List (Cont.)
REF P ART # DES CRIPTIO N REF P ART # DESCRI P TION
92 PT33901092 PHLP HD SCR M5-.8 X 10 111 PT33901111 SET SCREW M8-1.25 X 10
93 PT33901093 SET SCREW M6-1 X 6 112 PT33901112 TABLE HEIGHT CRANK
94 PT33901094 SET SCREW M10-1.5 X 25 SLOTTED 113 PT33901113 RACK
95 PT33901095 HEX NUT M10-1.5 114 PT33901114 COLUMN
97 PT33901097 LASER MODULE DKLD LDBXQ03B 115 PT33901115 HEX BOLT M10-1.5 X 25
98 PT33901098 LIGHT SEAT 116 PT33901116 COLUMN BASE
99 PT33901099 LED ASSEMBLY 117 PT33901117 BASE
99-1 PT33901099-1 LED XINGZHEN 12V 3W 118 PT33901118 TABLE TILT SCALE
99-2 PT33901099-2 LED DRIVER (3-5)X1W 119 PT33901119 TABLE TILT POINTER
100 PT33901100 PINION SHAFT 120 PT33901120 TABLE
101 PT33901101 KNOB M12-1.75, D35 121 PT33901121 TABLE MOUNTING ARM
102 PT33901102 STUD-DE M12-1.75 X 178, 15 122 PT33901122 FOLDING HANDLE M10-1.5 X 28, 70L
103 PT33901103 COLUMN COLLAR 123 PT33901123 LOCK WASHER 16MM
104 PT33901104 SET SCREW M6-1 X 10 124 PT33901124 HEX BOLT M16-2 X 30
105 PT33901105 FOLDING HANDLE M12-1.75 X 50, 90L 125 PT33901125 HEX WRENCH 3MM
106 PT33901106 COLUMN BRACKET 126 PT33901126 WRENCH 24MM COMBO
107 PT33901107 GEAR SHAFT 127 PT33901127 HEX WRENCH 4MM
108 PT33901108 GEAR 14T 128 PT33901128 HEX WRENCH 5MM
109 PT33901109 WORM SHAFT 129 PT33901129 MOTOR CORD 16G 3W 35"
110 PT33901110 EXT RETAINING RING 14MM
-48-
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Model T33901/T33902 (Mfd. Since 07/23)
Page 51
separate proofing
T33902 Main
127
33-2
46
42
45
33-1
41
47
34
44
18
33
13
14
15
16
17
19
38
37
40
43
12
36
20
35
39
25
31
32
11
9
10
79
29
76
130
80
28
101
102
77
81
78
84-3
85
82
83
84
84-1
84-2
84-4
84-5
1
89
87
88
21
75
100
86
2
3
22
23
24
7
74
73
72
71
90
91
92
4
5
8
99-2
30
94
99-1
95
27
6
26
93
104
70-14
70-13
70-12
70-11
70-10
50
53
49
51
54
55
70-1
56
70-7
57
70-2
48
52
59
70-6
70-8
70-9
70-3
70-4
70-5
58
60
62
66
61
63
65
67
68
64
120
124
69
97
98
121
123
119
125
117
118
114
99
122
105
109
103
106
116
115
110
113
108
107
112
111
128
126
129
70
Model T33901/T33902 (Mfd. Since 07/23)
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-49-
Page 52
54 PT33902054 DEPTH STOP BRACKET 91 PT33902091 FLAT WA SHER 5 MM
T33902 Main Parts List
REF PART # DE SCRIP TION REF PART # DES CRIPTION
1 PT33902001 V-BELT A-565 55 PT33902055 DEPTH COLLAR
2 PT33902002 MOTOR PULLEY 56 PT33902056 HEX NUT M12-1.75
3 PT33902003 SET SCREW M8-1.25 X 10 57 PT33902057 HEX NUT M6 -1
4 PT33902004 BALL BEARING 6202-2RS 58 PT33902058 CAP SCREW M6-1 X 45
5 PT33902005 IDLER PULLEY 59 PT33902059 SET SCREW M6-1 X 10
6 PT33902006 CRANKSHA FT 60 PT33902060 EX T RETAI NI NG RI NG 17 MM
7 PT33902007 BELT COVER 61 PT33902061 SPACER 47 X 59 X 2.5MM RUBBER
8 PT33902008 KNOB BOLT M5-.8 X 8, D20, ROUND KD 62 PT33902062 BALL BEARING 6203-2RS
9 PT33902009 INT TOO TH WASHE R 5MM 63 PT33902063 QUILL
10 PT33902010 ACORN NUT M5 -. 8 64 PT33902064 DRIFT KE Y
11 PT33902011 SPINDLE PULLEY 65 PT33902065 BALL BEARING 6204-2RS
12 PT33902012 V-BELT A-565 66 PT33902066 SPINDLE MT#2
13 PT33902013 HEX NUT M2 4-1 . 5 LH THI N 67 PT33902067 DRILL CHUCK ARB OR MT#2 X J T3
14 PT33902014 SPINDLE SLEEVE 68 PT33902068 DRILL CHUCK JT3 X 1/8-5/ 8
15 PT33902015 BALL BEARING 6005-2RS 69 PT33902069 DRILL CHUCK KEY 5/16" SE 12T SD-11/ 6"
16 PT33902016 SPACER 41 X 47 X 12MM 70 PT33902070 CHUCK GUARD ASSEMBLY
17 PT33902017 HEX NUT M5 -. 8 70-1 PT33902070-1 HEX NUT M4 -. 7
18 PT33902018 CORD CLAMP LARGE 70-2 PT33902070-2 CHUCK GUA RD COLL AR
19 PT33902019 FLAT WA SHER 5 MM 70-3 PT33902070-3 HEX NUT M6 -1
20 PT33902020 PHLP HD SCR M5-.8 X 16 70-4 PT33902070-4 PHLP HD SCR M4-.7 X 30
21 PT33902021 TAP SCREW M4.2 X 12 70-5 PT33902070-5 TAP SCREW M2.6 X 6
22 PT33902022 CORD CLAMP SMALL 70-6 PT33902070-6 HINGE BRACKET
23 PT33902023 HEX BOLT M8-1.25 X 12 70-7 PT33902070-7 EXTENSION SPRING 0.8 X 6. 5 X 30
24 PT33902024 FLAT WA SHER 8 MM 70-8 PT33902070-8 HEX BOLT M5-. 8 X 16
25 PT33902025 GROMMET 5/8" RUBBER 70-9 PT33902070-9 WI NG NUT M5-. 8
26 PT33902026 SPACER 9 X 18 X 2.5MM RUBBER 70-10 PT33902070-10 GUARD LOWER
27 PT33902027 KNOB BOLT M10-1.5 X 25, D33, WING 70-11 PT33902070-11 GUARD UPPER
28 PT33902028 BELT TENSION LEVER 70-12 PT33902070-12 PHLP HD SCR M4-.7 X 35
29 PT33902029 EXT RE TAI NI NG RI NG 15MM 70-13 PT33902070-13 HEX BOLT M6-1 X 20
30 PT33902030 SET SCREW M8-1.25 X 8 70-14 PT33902070-14 LOCK NUT M4 -. 7
31 PT33902031 HEADS TOCK 71 PT33902071 PIVOT PIN 7 X 12, 10. 5 X 19MM
32 PT33902032 STUD-SE M4-.7 X 8, 13.5 SLOTTED 72 PT33902072 BELT TENSION BLOCK
33 PT33902033 RETURN SPRING ASSEMBLY 73 PT33902073 SET SCREW M8-1.25 X 10
33-1 PT33902033-1 RETURN SP RI NG COVE R 74 PT33902074 SLIDE BAR LEFT
33-2 PT33902033-2 FLAT COIL SPRING 75 PT33902075 SLIDE BAR RIGHT
34 PT33902034 HEX NUT M1 2-1 . 7 5 THI N 76 PT33902076 HEX BOLT M8-1.25 X 20
35 PT33902035 EXT TO OTH WAS HER 5MM 77 PT33902077 FL AT WAS HER 8MM
36 PT33902036 FLAT WA SHER 5 MM 78 PT33902078 MOTOR MOUNT
37 PT33902037 LOCK WASHER 5MM 79 PT33902079 FLAT WA SHER 1 2MM
38 PT33902038 PHLP HD SCR M5-.8 X 8 80 PT33902080 LOCK WASHER 12MM
39 PT33902039 TRANSFORMER HOPESTAR LED-5V700 5V 81 PT33902081 HEX NUT M12-1.75
40 PT33902040 PHLP HD SCR M4-.7 X 8 82 PT33902082 HEX NUT M8 -1. 25
41 PT33902041 LI GHT ON/ OFF SWI TCH DKLD A N-18 RE D 83 PT33902083 FLAT WAS HER 8MM
42 PT33902042 LASER ON/OFF SWITCH DKLD AN-18 BLACK 84 PT33902084 MOTOR 3/4HP 120V 1-PH
43 PT33902043 SWI TCH BOX 84-1 PT33902084-1 MOTOR FA N COVE R
44 PT33902044 CAP SCREW M6-1 X 12 84-2 PT33902084-2 MOTOR FA N
45 PT33902045 SWI TCH PLA TE 84-3 PT33902084-3 R CAPACITOR 65M 300V 1-5/8 X 2-7/8
46 PT33902046 ON/ OFF SWI TCH DKLD A N17 84-4 PT33902084-4 CAPACITOR COVER
47 PT33902047 TAP SCREW M3.5 X 10 84-5 PT33902084-5 BALL BEARING 6203-2RS
48 PT33902048 DEPTH STOP NUT M12-1. 75 85 PT33902085 POWER CORD 16G 3W 70" 5-15P
49 PT33902049 COMPRESSION SPRING 1.2 X 14 X 11. 5 86 PT33902086 HEX BOLT M8-1.25 X 25
50 PT33902050 QUICK-RELEASE BUTTON 87 PT33902087 HEX NUT M8- 1. 25
51 PT33902051 DEPTH SCALE 88 PT33902088 ROLL PIN 6 X 20
52 PT33902052 THREADE D DE PTH ROD 89 PT33902089 SET SCREW M10-1.5 X 12
53 PT33902053 FLAT HD S CR M6 -1 X 12 90 PT33902090 CHUCK KEY SEAT
-50-
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Model T33901/T33902 (Mfd. Since 07/23)
Page 53
110 PT33902110 E XT RETA I NING RI NG 14MM 130 PT33902130 MOTOR CORD 16G 3W 35"
T33902 Main Parts List (Cont.)
REF P ART # DE S CRIPTION REF PART # DESCRIPTIO N
92 PT33902092 PHLP HD SCR M5-.8 X 10 111 PT33902111 SET SCREW M8-1.25 X 10
93 PT33902093 SET SCREW M6-1 X 6 112 PT33902112 TABLE HEIGHT CRANK
94 PT33902094 SET SCREW M10-1.5 X 25 SLOTTED 113 PT33902113 RACK
95 PT33902095 HEX NUT M1 0-1. 5 114 PT33902114 COL UMN
97 PT33902097 LASER MODULE DKLD LDBXQ03B 115 PT33902115 HEX BOLT M10-1.5 X 30
98 PT33902098 LIGHT SEAT 116 PT33902116 COLUMN BASE
99 PT33902099 LED ASSEMBLY 117 PT33902117 BASE
99-1 PT33902099-1 LED XINGZHEN 12V 3W 118 PT33902118 TABLE TI LT SCALE
99-2 PT33902099-2 LED DRI V ER (3-5)X 1W 119 PT33902119 TABLE TI LT POINTER
100 PT33902100 P I NI ON SHAFT 120 PT33902120 TABLE
101 PT33902101 KNOB M12-1.75, D35 121 PT33902121 TABLE MOUNTING ARM
102 PT33902102 STUD-DE M12-1.75 X 178, 15 122 PT33902122 FOLDING HANDLE M10-1.5 X 28, 70L
103 PT33902103 COLUMN COLLAR 123 PT33902123 LOCK WASHER 16MM
104 PT33902104 SET SCREW M6-1 X 10 124 PT33902124 HEX BOLT M16-2 X 30
105 PT33902105 FOLDING HANDLE M12-1.75 X 50, 90L 125 PT33902125 SET SCREW M8-1.25 X 8
106 PT33902106 CO LUMN BRA CKET 126 PT33902126 HEX WRENCH 3MM
107 PT33902107 GEAR SHAFT 127 PT33902127 WRENCH 2 4MM COMBO
108 PT33902108 GEAR 14T 128 PT33902128 HEX WRENCH 4 MM
109 PT33902109 WO RM SHAFT 129 PT33902129 HEX WRENCH 5MM
Model T33901/T33902 (Mfd. Since 07/23)
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-51-
Page 54
202
Labels & Cosmetics
205 PT33901205 TOUCH-UP PAINT, GRIZZLY GREEN
Specifications
Motor: 3/4 HP, 120V, 1-Phase, 60 Hz
Full-Load Current Rating: 7.5A
Max. Distance Spindle to Table: 15-7/8"
Max. Distance Spindle to Base: 23-3/8"
Spindle Speeds: 12 (340–2860 RPM)
Spindle Travel: 3-1/4"
Spindle Taper: MT#2
Weight: 108 lbs.
Date
S/N
Mfd. for Grizzly in China
Specifications
Motor: 3/4 HP, 120V, 1-Phase, 60 Hz
Full-Load Current Rating: 7.5A
Max. Distance Spindle to Table: 26-3/8"
Max. Distance Spindle to Base: 45-3/4"
Spindle Speeds: 12 (340–2860 RPM)
Spindle Travel: 3-1/4"
Spindle Taper: MT#2
Weight: 126 lbs.
Date
S/N
Mfd. for Grizzly in China
201
207
208
MODEL T33901
14" BENCHTOP DRILL PRESS
WARNING!
To reduce risk of serious personal injury when using this machine:
1. Read and understand owner’s manual before operating.
2. Always wear approved safety glasses and a face shield.
3. Only plug power cord into a grounded outlet.
4. Disconnect power before setting up or servicing.
5. Avoid spindle entanglement. Tie back long hair, roll up long
sleeves, and DO NOT wear loose clothing, gloves, or jewelry.
6. Keep all guards and covers in place during operation.
7. Clamp workpiece to table to prevent rotation.
8. Avoid putting hands where they could slip into rotating bits.
9. Always remove chuck keys and other tools before starting.
10. Use correct speeds for drill bits and workpiece material.
11. DO NOT expose to rain or use in wet locations.
12. Prevent unauthorized use by children or untrained users.
MODEL T33902
14" FLOOR DRILL PRESS
WARNING!
To reduce risk of serious personal injury when using this machine:
1. Read and understand owner’s manual before operating.
2. Always wear approved safety glasses and a face shield.
3. Only plug power cord into a grounded outlet.
4. Disconnect power before setting up or servicing.
5. Avoid spindle entanglement. Tie back long hair, roll up long
sleeves, and DO NOT wear loose clothing, gloves, or jewelry.
6. Keep all guards and covers in place during operation.
7. Clamp workpiece to table to prevent rotation.
8. Avoid putting hands where they could slip into rotating bits.
9. Always remove chuck keys and other tools before starting.
10. Use correct speeds for drill bits and workpiece material.
11. DO NOT expose to rain or use in wet locations.
12. Prevent unauthorized use by children or untrained users.
WARNING!
ENTANGLEMENT
HAZARD!
Always keep this
cover closed during
operation.
WARNING!
ENTANGLEMENT
HAZARD!
Tie back long hair, roll up
long sleeves, and remove
loose clothing, jewelry, or
gloves to prevent getting
caught in moving parts.
206
CAUTION!
LASER RADIATION!
Do not stare into beam.
Class: II
Wavelength: 650nm
Max. Output: 1m W
207
206
CAUTION!
LASER RADIATION!
Do not stare into beam.
Class: II
Wavelength: 650nm
Max. Output: 1m W
WARNING!
To reduce risk of death
or serious injury, read
manual BEFORE using
machine.
To get a new manual, call
(800) 523-4777 or go to
www.grizzly.com.
203
EYE/FACE INJURY
Always wear
ANSI-approved safety
glasses and face
shield when using this
machine.
WARNING!
HAZARD!
WARNING!
INJURY/SHOCK
HAZARD!
Disconnect power
before adjustments,
maintenance, or
service.
205
204
REF PART # DESCRI P TION RE F PART # DE S CRIPTI ON
201 PT33901201 GRIZZLY LOGO LABEL 206 PT33901206 LASER LABEL
202 PT33901202 ENTANGLEMENT HAZARD LABEL 207 PT33901207 ELECTRI CITY LABEL
203 PT33901203 COMBO WARNING LABEL 208 PT33901208 MACHI NE ID LABEL (T33901)
204 PT33901204 TOUCH-UP PAINT, GRIZZLY BLACK 208 PT33902208 MACHINE ID LABEL (T33902)
Safety labels help reduce the risk of serious injury caused by machine hazards. If any label comes
off or becomes unreadable, the owner of this machine MUST replace it in the original location
before resuming operations. For replacements, contact (800) 523-4777 or www.grizzly.com.
-52-
BUY PARTS ONLI NE AT GRIZZLY.COM!
Scan QR code to visit our Parts Store.
Model T33901/T33902 (Mfd. Since 07/23)
Page 55
WARRANTY & RETURNS
Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from
the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse,
negligence,accidents,repairsoralterationsorlackofmaintenance.ThisisGrizzly’ssolewrittenwarranty
and any and all warranties that may be implied by law, including any merchantability or fitness, for any particular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent
that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants.
InnoeventshallGrizzly’sliabilityunderthiswarrantyexceedthepurchasepricepaidfortheproductand
any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special,
or consequential damages arising from the use of our products.
The manufacturers reserve the right to change specifications at any time because they constantly strive to
achieve better quality equipment. We make every effort to ensure that our products meet high quality and
durability standards and we hope you never need to use this warranty.
In the event you need to use this warranty, contact us by mail or phone and give us all the details. We will
thenissue youa “ReturnNumber,’’which mustbe clearlypostedonthe outsideaswellas theinsideof
the carton. We will not accept any item back without this number. Proof of purchase must accompany the
merchandise.
Please feel free to write or call us if you have any questions about the machine or the manual.
Thank you again for your business and continued support. We hope to serve you again soon.
For further information about the
scan the QR
code below
to be automatically directed to our warranty page.
warranty, visit https://www.grizzly.com/forms/warranty or
WARRANTY
Page 56
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