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Grizzly T33901 Owner's Manual

4" drill press w/led & laser guide
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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
V1.12.23
***Keep for Future Reference***

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Summary of Contents for Grizzly T33901

  • Page 1 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.
  • Page 2 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.

  • Page 3: Table Of Contents

    Identification ........... 3 Cleaning & Protecting ........33 Controls & Components ......... 4 Lubrication ........... 33 Machine Data Sheet (T33901) ...... 6 Machine Data Sheet (T33902) ...... 8 SECTION 7: SERVICE ........35 Troubleshooting ........... 35 SECTION 1: SAFETY ........10 Adjusting Return Spring Tension ....

  • Page 4: Introduction

    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. Manufacture Date Serial Number Model T33901/T33902 (Mfd. Since 07/23)

  • Page 5: Identification

    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. Model T33901/T33902 (Mfd. Since 07/23)

  • Page 6: Controls & Components

    C. Laser Switch: Turns laser guide ON or OFF. H. Chuck Key: Adjusts jaws on chuck for drill bit changes. 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)
  • Page 7 Figure 7. Left table components. S. Tilt Scale: Displays current table tilt angle. Table Height Lock Handle: Loosens to allow adjustment of table position on column; Figure 5. LED and laser guide. tightens to lock table position. Model T33901/T33902 (Mfd. Since 07/23)

  • Page 8: Machine Data Sheet (T33901)

    SHEET Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901 MODEL T33901 MODEL T33901 14" BENCHTOP DRILL PRESS WITH LED 14" BENCHTOP DRILL PRESS W/LED & LASER GUIDE LIGHT & LASER GUIDE Product Dimensions: Weight................................
  • Page 9 The information contained herein is deemed accurate as of 12/27/2023 and represents our most recent product specifications. Model T33901 PAGE 2 OF 2 Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. Model T33901/T33902 (Mfd. Since 07/23)

  • Page 10: Machine Data Sheet (T33902)

    The information contained herein is deemed accurate as of 12/27/2023 and represents our most recent product specifications. Model T33902 PAGE 1 OF 2 Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. Model T33901/T33902 (Mfd. Since 07/23)
  • Page 11 The information contained herein is deemed accurate as of 12/27/2023 and represents our most recent product specifications. Model T33902 PAGE 2 OF 2 Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. Model T33901/T33902 (Mfd. Since 07/23)

  • Page 12: Section 1: Safety

    Never operate under the influence of drugs or injury or blindness from flying particles. Everyday alcohol, when tired, or when distracted. eyeglasses are NOT approved safety glasses. -10- Model T33901/T33902 (Mfd. Since 07/23)
  • Page 13 EXPERIENCING DIFFICULTIES. If at any time debris. Make sure they are properly installed, you experience difficulties performing the intend- undamaged, and working correctly BEFORE ed operation, stop using the machine! Contact our operating machine. Technical Support at (570) 546-9663. -11- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 14: Additional Safety For Drill Presses

    If normal safety pre- respect. Failure to do so could result in cautions are overlooked or ignored, seri- serious personal injury, damage to equip- ous personal injury may occur. ment, or poor work results. -12- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 15: Section 2: Power Supply

    -13- Model T33901/T33902 (Mfd. Since 07/23)
  • Page 16 Do not modify or use an adapter on the plug provided—if it will not fit the outlet, have a qualified electrician install the proper outlet with a verified ground. -14- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 17: Section 3: Setup

    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.

  • Page 18: Inventory

    M. Arbor MT#2 x JT3 ........1 N. Drift Key ............1 O. Drill Chuck Key ........... 1 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 Figure 9. Inventory. -16-...

  • Page 19: Cleanup

    NOTICE Avoid harsh solvents like acetone or brake parts cleaner that may damage painted sur- faces. Always test on a small, inconspicu- ous location first. -17- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 20: Bench Mounting (T33901)

    ⁄ " Anchoring machinery to the floor prevents tipping The T33901 base has holes that allow it to be or shifting and reduces vibration that may occur fastened to a workbench or other mounting during operation, resulting in a machine that runs surface to prevent it from moving during operation slightly quieter and feels more solid.

  • Page 21: Assembly

    Loosen set screw shown in Figure 16 to remove column collar. To assemble machine: T33901: Attach column assembly to base with Column (4) M10-1.5 x 25 hex bolts (see Figure 14). Collar Column...
  • Page 22 Adjust headstock on column until it is directly firmly between collar and column base. 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: Joining Drill Chuck & Arbor

    Chuck Guard Figure 22. Chuck guard and downfeed handles Figure 23. Tapping drill chuck/arbor on block of installed. wood. Attempt to separate drill chuck and arbor by hand —if they separate, repeat Steps 3–4. -21- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 24: Test Run

    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 reg- ular operations. Call Tech Support for help. -22- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 25: Spindle Break-In

    2860 RPM Complete spindle bearing break-in proce- dure to prevent rapid wear and tear of spin- Turn machine OFF. dle components once drill press is placed into operation. Congratulations! Spindle break-in is now complete. -23- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 26: Section 4: Operations

    Connects machine to power, and turns ects. Regardless of the content in this sec- machine ON. tion, Grizzly Industrial will not be held liable for accidents caused by lack of training. Performs drilling operation. When finished, turns machine OFF and dis- connects it from power.

  • Page 27: Installing/Removing Arbor

    Chuck Guard Figure 25. Location of chuck guard fasteners. Join chuck and arbor (refer to Joining Drill Chuck & Arbor on Page 21). Rotate chuck on arbor until chuck jaws retract into drill chuck body. -25- Model T33901/T33902 (Mfd. Since 07/23)
  • Page 28 Rotate spindle until inner drift key slot is Use downfeed handles to retract quill back aligned with outer slot (see Figure 28). You into headstock. will see through spindle when slot is properly aligned. -26- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 29: Choosing Spindle Speed

    Always clamp workpiece to table to Often, when drilling materials other than wood, prevent reduce risk of injury. some type of lubrication is necessary. Figure 30. Drill bit speed chart (RPMs). -27- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 30: Changing Spindle Speed

    Lock Knob Loosen hex bolt from Step 5 until it contacts (1 of 2) motor mount, then adjust hex nut against headstock to secure. Figure 31. Location of belt tension controls. 10. Close belt cover. -28- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 31: Installing/Removing Drill Bit

    Drill Bit Depth Stop Any drill bit you install in the chuck must be The Model T33901/T33902 has a depth stop that tight enough that it will not come loose during allows you to drill repeat non-through holes to the operation.

  • Page 32: Positioning Table

    Loosen table pivot lock handle (see angle on scale (see Figure 36). Figure 36). Tighten hex bolt from Step 1 to secure table 2. Rotate table to desired position, then tighten angle. table pivot lock handle to secure. -30- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 33: Adjusting Laser Guide

    Figure 41. Laser module adjustment components. Laser Switch Once crosshairs are aligned with indenta- tion in workpiece, tighten screws loosened in Step 7 to secure laser module positions. Figure 39. Location of laser switch. -31- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 34: Section 5: Accessories

    To reduce this risk, only install accessories slot. 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...

  • Page 35: Section 6: Maintenance

    • Check V-belt for damage or wear. on Page 32. • Lubricate column rack and quill rack and pinion (Page 34). DISCONNECT MACHINE FROM POWER • Clean/vacuum dust buildup off motor. BEFORE PERFORMING LUBRICATION! -33- Model T33901/T33902 (Mfd. Since 07/23)
  • Page 36 Quill & Column Surfaces Column Rack, Quill Rack & Pinion Oil Type ..Grizzly SB1365 or ISO 68 Equivalent Grease Type ..Grizzly T26419 or NLGI#2 Equiv. Oil Amount ..........Thin Coat Grease Amount ........Thin Coat Lubrication Frequency ...8 Hrs. of Operation Lubrication Frequency ..

  • Page 37: Section 7: Service

    8. Fix/replace fan cover; replace loose/damaged fan. 9. Spindle bearings at fault. 9. Test by rotating spindle; rotational grinding/loose shaft requires bearing replacement. 10. Motor bearings at fault. 10. Test by rotating shaft; rotational grinding/loose shaft requires bearing replacement. -35- Model T33901/T33902 (Mfd. Since 07/23)
  • Page 38 1. Poorly adjusted return spring. 1. Increase return spring tension (Page 38). not fully retract. 2. Debris on spindle/quill rack. 2. Clean and lubricate spindle/quill rack (Page 34). 3. Worn return spring. 3. Replace return spring. -36- Model T33901/T33902 (Mfd. Since 07/23)
  • Page 39 3. Install tool/bit correctly (Page 29) or replace. 4. Spindle bearings worn. 4. Replace spindle bearings. Backside of 1. Scrap board not installed between table and 1. Install scrap board between table and workpiece. workpiece workpiece. splinters. -37- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 40: Adjusting Return Spring Tension

    Spindle should return quickly when downward pressure is released. To adjust spring tension: DISCONNECT MACHINE FROM POWER! — If spindle does not retract quickly, repeat Steps 3–8, and re-check tension until return speed is adequate. -38- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 41: Aligning Motor Pulley

    Loosen set screw on motor pulley, adjust To align motor pulley: pulley on shaft until it aligns with idler pulley, then tighten set screw (see Figure 52). DISCONNECT MACHINE FROM POWER! Close belt cover. Open belt cover. -39- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 42: Calibrating Depth Stop

    — If top of depth stop nut indicates 0" on scale, no adjustment is necessary. — 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 Modules & Led

    31 to secure and adjust laser module. Replacing LED Figure 55. Location of laser modules and light seat. Items Needed Replacement LED (#PT33901099-1) ....1 Electrical Tape or Cable Ties .... As Needed To replace LED: DISCONNECT MACHINE FROM POWER! -41- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 44: Adjusting Quill Shaft Lock Screw

    Check for quill binding and looseness while moving quill up and down through its entire range of travel and readjust as required. -42- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 45: Section 8: Wiring

    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. -43- Model T33901/T33902 (Mfd. Since 07/23)

  • Page 46: Wiring Diagram

    LED Driver DKLD AN17 (3-5)X1W 20A 125V − Laser Switch Laser LED Driver DKLD AN-18 HOPESTAR LED-5V700 5V SWITCH BOX HEADSTOCK Laser Modules DKLD LDBXQ03B XINGZHEN 12V 3W READ ELECTRICAL SAFETY -44- Model T33901/T33902 (Mfd. Since 07/23) ON PAGE 43!

  • Page 47: Electrical Component Photos

    Electrical Component Photos Figure 60. Switch box wiring. Figure 62. Capacitor wiring. Figure 63. LED driver wiring. Figure 61. LED & laser module wiring. READ ELECTRICAL SAFETY -45- Model T33901/T33902 (Mfd. Since 07/23) ON PAGE 43!

  • Page 48: Section 9: Parts

    SECTION 9: PARTS 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. T33901 Main 80 81 33-1...
  • Page 49 SET SCREW M10-1.5 X 12 PT33901053 FLAT HD SCR M6-1 X 12 PT33901090 CHUCK KEY SEAT PT33901054 DEPTH STOP BRACKET PT33901091 FLAT WASHER 5MM -47- BUY PARTS ONLINE AT GRIZZLY.COM! Model T33901/T33902 (Mfd. Since 07/23) Scan QR code to visit our Parts Store.
  • Page 50 T33901 Main Parts List (Cont.) REF PART # DESCRIPTION REF PART # DESCRIPTION PT33901092 PHLP HD SCR M5-.8 X 10 PT33901111 SET SCREW M8-1.25 X 10 PT33901093 SET SCREW M6-1 X 6 PT33901112 TABLE HEIGHT CRANK PT33901094 SET SCREW M10-1.5 X 25 SLOTTED...

  • Page 51: T33902 Main

    84-2 33-2 84-4 84-5 84-3 99-1 99-2 70-2 70-1 70-3 70-14 70-4 70-13 70-5 70-12 70-7 70-6 70-11 70-8 70-9 70-10 -49- BUY PARTS ONLINE AT GRIZZLY.COM! Model T33901/T33902 (Mfd. Since 07/23) Scan QR code to visit our Parts Store.
  • Page 52 SET SCREW M10-1.5 X 12 PT33902053 FLAT HD SCR M6-1 X 12 PT33902090 CHUCK KEY SEAT PT33902054 DEPTH STOP BRACKET PT33902091 FLAT WASHER 5MM -50- BUY PARTS ONLINE AT GRIZZLY.COM! Model T33901/T33902 (Mfd. Since 07/23) Scan QR code to visit our Parts Store.
  • Page 53 HEX WRENCH 4MM PT33902109 WORM SHAFT PT33902129 HEX WRENCH 5MM PT33902110 EXT RETAINING RING 14MM PT33902130 MOTOR CORD 16G 3W 35" -51- BUY PARTS ONLINE AT GRIZZLY.COM! Model T33901/T33902 (Mfd. Since 07/23) Scan QR code to visit our Parts Store.

  • Page 54: Labels & Cosmetics

    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 ONLINE AT GRIZZLY.COM!

  • Page 55: Warranty & Returns

    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, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty...

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