Grizzly T33903 Owner's Manual
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Grizzly T33903 Owner's Manual

Grizzly T33903 Owner's Manual

17" & 20" floor drill press w/led light & laser guide
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MODEL T33903/T33904
17" & 20" FLOOR DRILL PRESS
w/LED LIGHT & LASER GUIDE
OWNER'S MANUAL
(For models manufactured since 07/23)
COPYRIGHT © SEPTEMBER, 2023 BY GRIZZLY INDUSTRIAL, INC., REVISED JANUARY, 2024 (CS)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#CS22755 PRINTED IN CHINA
V1.01.24
***Keep for Future Reference***

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  • Page 1 OWNER'S MANUAL (For models manufactured since 07/23) COPYRIGHT © SEPTEMBER, 2023 BY GRIZZLY INDUSTRIAL, INC., REVISED JANUARY, 2024 (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 ........36 Controls & Components ......... 4 Lubrication ........... 36 Machine Data Sheet (T33903) ...... 6 Machine Data Sheet (T33904) ...... 8 SECTION 7: SERVICE ........38 Troubleshooting ........... 38 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 T33903/T33904 (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 T33903/T33904 (Mfd. Since 07/23)

  • Page 6: Controls & Components

    C. Laser Switch: Turns laser guide ON or OFF. cally returns to top position when released. Spindle Speed K. Quill: Houses spindle and spindle bearings. Chuck: Accepts drill bits with shanks from ⁄ "– ⁄ ". Figure 2. Spindle speed components. Model T33903/T33904 (Mfd. Since 07/23)
  • Page 7 LED & Laser Guide Figure 7. Table pivot lock handle. Figure 5. LED and laser guide. U. Table Pivot Lock Handle (T33903 Only): Loosens to allow rotation of table; tightens to lock table rotation. LED: Illuminates work area.

  • Page 8: Machine Data Sheet (T33903)

    Machine Data Sheet (T33903) MACHINE DATA SHEET Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901 MODEL T33903 17" FLOOR DRILL PRESS WITH LED LIGHT & LASER GUIDE Product Dimensions: Weight................................223 lbs.
  • Page 9 The information contained herein is deemed accurate as of 1/2/2024 and represents our most recent product specifications. Model T33903 PAGE 2 OF 3 Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. Model T33903/T33904 (Mfd. Since 07/23)

  • Page 10: Machine Data Sheet (T33904)

    The information contained herein is deemed accurate as of 1/2/2024 and represents our most recent product specifications. Model T33904 PAGE 1 OF 3 Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. Model T33903/T33904 (Mfd. Since 07/23)
  • Page 11 The information contained herein is deemed accurate as of 1/2/2024 and represents our most recent product specifications. Model T33904 PAGE 2 OF 3 Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. Model T33903/T33904 (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 T33903/T33904 (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 T33903/T33904 (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 T33903/T33904 (Mfd. Since 07/23)

  • Page 15: Section 2: Power Supply

    -13- Model T33903/T33904 (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 T33903/T33904 (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

    Box 1 (Figure 9) A. Headstock ..........1 B. Column Assembly ........1 C. Table Support Bracket (T33903 Only) ..1 D. Table (T33903 Only) ........1 E. Table Assembly (T33904 Only) ....1 Table Height Crank ........1 G.

  • Page 19: Cleanup

    Figure 10. T23692 Orange Power Degreaser. Repeat Steps 2–3 as necessary until clean, then coat all unpainted surfaces with a quality metal protectant to prevent rust. -17- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 20: Site Considerations

    Shadows, glare, or strobe effects that may distract access restricted location. or impede the operator must be eliminated. Electrical 17" 18½" Connection T33904 T33903 33" 31" Min. 30" Wall Figure 11. Minimum working clearances. -18- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 21: Anchoring To Floor

    Flat Washer Machine Base Column Collar Lag Shield Anchor Concrete Drilled Hole Figure 12. Popular method for anchoring Rack machinery to a concrete floor. Figure 14. Example of marking top of rack. -19- Model T33903/T33904 (Mfd. Since 07/23)
  • Page 22 T33903: Place rack inside of table support Slide column collar over column with beveled bracket, mesh it with pinion, and slide bracket edge facing down, as shown in Figure 17, over column, as shown in Figure 15. then fit beveled edge of collar over rack and tighten set screw to secure.

  • Page 23: Lifting Equipment (Rated For At Least 325 Lbs.)

    Use measuring tape or ruler to find and mark T33903 Only: Install table in table support center of base, then suspend plumb bob from bracket, then tighten table pivot lock handle center of headstock spindle over base, as to secure (see Figure 19).

  • Page 24: Joining Drill Chuck & Arbor

    Figure 24. Tapping drill chuck/arbor on block of wood. Attempt to separate drill chuck and arbor by hand —if they separate, repeat Steps 3–4. -22- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 25: Test Run

    — 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. -23- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 26: Spindle Break-In

    3020 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. -24- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 27: 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 28: Installing/Removing Arbor

    Chuck Guard Figure 26. Location of chuck guard fasteners. Join chuck and arbor (refer to Joining Drill Chuck & Arbor on Page 22). Rotate chuck on arbor until chuck jaws retract into drill chuck body. -26- Model T33903/T33904 (Mfd. Since 07/23)
  • Page 29 Rotate spindle until inner drift key slot is Use downfeed handles to retract quill back aligned with outer slot (see Figure 29). You into headstock. will see through spindle when slot is properly aligned. -27- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 30: Choosing Spindle Speed

    A A l l u u m m i i n n u u m m M M i i l l d d S S t t e e e e l l 3/8" – 1/2" 1200 1000 5/8" – 1" Figure 31. Drill bit speed chart (RPMs). -28- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 31: Changing Spindle Speed

    Rotate belt tension lever clockwise until V-belts are tight. Figure 32. Location of belt tension locks and hex Tighten belt tension locks, tighten (2) hex nut. nuts shown in Figure 32, then close belt cover. -29- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 32: Installing/Removing Drill Bit

    Drill Bit Depth Stop Any drill bit you install in the chuck must be The Model T33903/T33904 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 33: Positioning Table (T33903)

    37). 2. Rotate table to desired position, then tighten table pivot lock handle to secure. The Model T33903 table moves vertically, rotates 360° around its center, rotates 360° around the Rotating Table Around Column column, and tilts 45° left or right. Remove any...

  • Page 34: Positioning Table (T33904)

    Wrench or Socket 30mm ........1 Rack To tilt table: Loosen hex bolt shown in Figure 40. Table Height Lock Handle Figure 42. Location of table height lock handle and column rack. Figure 40. Location of hex bolt. -32- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 35: Adjusting Laser Guide

    — Adjusting laser module position in seat will adjust crosshair line positions. Once crosshairs are aligned with indenta- tion in workpiece, tighten screws loosened in Figure 43. Location of laser switch. Step 7 to secure laser module positions. -33- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 36: Section 5: Accessories

    ⁄ " x 15 ⁄ " table embedded T-slots. 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 Figure 48.
  • Page 37 Table T-Slot Nuts for T33903 T30015—HSS M35 Cobalt 115-Pc. Drill Bit Set The bits in this 115-piece set all have 135˚ split G9515—T-Slot Nuts, 4-Pk., ⁄ " Slot, ⁄ "-13 points and fully ground flutes. Fractional sizes ⁄ "– ⁄...

  • Page 38: Section 6: Maintenance

    • Check V-belt for damage or wear. on Page 34. • Lubricate column rack and quill rack and pinion (Page 37). DISCONNECT MACHINE FROM POWER • Clean/vacuum dust buildup off motor. BEFORE PERFORMING LUBRICATION! -36- Model T33903/T33904 (Mfd. Since 07/23)
  • Page 39 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 40: Section 7: Service

    3. Secure pulley on shaft. 4. Motor mount loose/broken. 4. Tighten/replace. 5. Spindle loose, improperly installed or 5. Tighten loose spindle, re-install spindle ensuring damaged. mating surfaces are clean, replace spindle if damaged. 6. Workpiece loose. 6. Use correct holding fixture and reclamp workpiece. -38- Model T33903/T33904 (Mfd. Since 07/23)
  • Page 41 2. Dirty or dry rack and pinion. 2. Clean away chips/debris. Lubricate rack and pinion (Page 37). Backside of 1. Scrap board not installed between table and 1. Install scrap board between table and workpiece. workpiece workpiece. splinters. -39- Model T33903/T33904 (Mfd. Since 07/23)
  • Page 42 2. Tool/bit bent. 2. Replace with straight tool/bit. 3. Tool/bit installed incorrectly. 3. Install tool/bit correctly (Page 30) or replace. 4. Spindle bearings worn. 4. Replace spindle bearings. -40- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 43: Adjusting Return Spring Tension

    Shop Rags ......... As Needed Hex Wrench 5mm ..........1 — If spindle does not retract quickly, repeat Steps 3–7, and re-check tension until To adjust spring tension: return speed is adequate. DISCONNECT MACHINE FROM POWER! -41- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 44: Aligning Pulleys

    Spindle Speed on Page 29 for more information. Figure 59. Checking pulley alignment. 10. Close belt cover. — If pulleys are aligned, proceed to Step 6. — If pulleys are not aligned, proceed to Step 4. -42- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 45: Calibrating Depth Stop

    Figure 60. Depth stop nut adjusted all the way down. — 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. -43- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 46: Replacing Laser Modules & Led

    Laser Module Refer to Adjusting Laser Guide on Page (1 of 2) 33 to secure and adjust laser modules. Figure 62. Location of laser modules and light seat. -44- Model T33903/T33904 (Mfd. Since 07/23)
  • Page 47 Figure 64. Location of light seat. stock, then turn clockwise to secure. Move light seat tabs away from LED to remove LED from light seat (see Figure 65). -45- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 48: Adjusting Quill Shaft Lock Screw

    Figure 66. Location of quill shaft lock screw and jam nut. Tools Needed Open-End Wrench 17mm ........1 Flat Head Screwdriver ⁄ " ........1 -46- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 49: 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. -47- Model T33903/T33904 (Mfd. Since 07/23)

  • Page 50: 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 -48- Model T33903/T33904 (Mfd. Since 07/23) ON PAGE 47!

  • Page 51: Electrical Component Photos

    Electrical Component Photos Figure 67. Switch box wiring. Figure 69. Capacitor wiring. Figure 70. LED driver wiring. Figure 68. LED & laser module wiring. READ ELECTRICAL SAFETY -49- Model T33903/T33904 (Mfd. Since 07/23) ON PAGE 47!

  • Page 52: 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. T33903 Main 94-1 36-1 94-2...
  • Page 53 PT33903094-3 CENTRIFUGAL SWITCH 3/4 1700 PT33903055 COMPRESSION SPRING 1.2 X 14 X 11.5 94-4 PT33903094-4 CONTACT PLATE 19 X 26MM EXT -51- BUY PARTS ONLINE AT GRIZZLY.COM! Model T33903/T33904 (Mfd. Since 07/23) Scan QR code to visit our Parts Store.
  • Page 54 T33903 Main Parts List (Cont.) REF PART # DESCRIPTION REF PART # DESCRIPTION 94-5 PT33903094-5 S CAPACITOR 400M 250V 1-9/16 X 3-1/8 115 PT33903115 GEAR 14T 94-6 PT33903094-6 JUNCTION BOX 116 PT33903116 WORM SHAFT 94-7 PT33903094-7 R CAPACITOR 65M 300V 1-5/8 X 3...

  • Page 55: T33904 Main

    94-3 94-7 94-8 106-1 94-5 94-6 106-2 77-2 77-1 77-3 77-14 77-4 77-13 77-5 77-12 77-6 77-7 77-11 77-8 77-9 77-10 -53- BUY PARTS ONLINE AT GRIZZLY.COM! Model T33903/T33904 (Mfd. Since 07/23) Scan QR code to visit our Parts Store.
  • Page 56 PT33904094-3 CENTRIFUGAL SWITCH 3/4 1700 PT33904055 COMPRESSION SPRING 1.2 X 14 X 11.5 94-4 PT33904094-4 CONTACT PLATE 19 X 26MM EXT -54- BUY PARTS ONLINE AT GRIZZLY.COM! Model T33903/T33904 (Mfd. Since 07/23) Scan QR code to visit our Parts Store.
  • Page 57 FOLDING HANDLE M12-1.75 X 50, 90L 136 PT33904136 HEX WRENCH 5MM PT33904113 TABLE BRACKET 137 PT33904137 MOTOR CORD 16G 3W 45" -55- BUY PARTS ONLINE AT GRIZZLY.COM! Model T33903/T33904 (Mfd. Since 07/23) Scan QR code to visit our Parts Store.

  • Page 58: 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. -56- BUY PARTS ONLINE AT GRIZZLY.COM!

  • Page 59: 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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T33904

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