MODEL G0773 12" X 27" COMBO LATHE/MILL OWNER'S MANUAL (For models manufactured since 12/14) COPYRIGHT © MARCH, 2015 BY GRIZZLY INDUSTRIAL, INC. WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC. # WKBB17019 PRINTED IN CHINA V1.03.
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.
Table of Contents INTRODUCTION................................................ 2 Machine Description....................................... 2 Contact Info.................................................... 2 Manual Accuracy............................................ 2 Identification.................................................... 3 Controls & Components.................................. 4 G0773 Data Sheet.......................................... 7 SECTION 5: MILL OPERATIONS...................
INTRODUCTION Machine Description Manual Accuracy The Model G0773 12" x 27" Combo Lathe/Mill features a lathe with 735 Watt (1 HP) 110V motor, 6-speed variable-speed controls, 6" 3-jaw chuck, a 4-way turret toolpost, and a full length splash guard.
Identification Study the names and locations of the controls and components shown below to familiarize yourself with the machine and better understand the terms used throughout this manual.
Controls & Components Carriage H G F To reduce your risk of serious injury, read this entire manual BEFORE using machine. I Refer to Figures 1–5 and the following descriptions to become familiar with the basic controls of this machine. Headstock J A M L K Figure 2. Carriage controls. B F. C Thread Dial: Indicates when to engage half nut during threading operations. D G.
Tailstock N End Gears, Pulleys, V-Belts P O T U Q V R S Figure 3. Tailstock controls. N. Tailstock Quill: Equipped with an MT#2 taper to hold centers or other tooling; features a scale on the side for use as a depth guide. O. Tailstock Quill Lock Lever: Secures quill position so it doesn't shift during operations. P. Tailstock Lock Lever: Secures tailstock position along bedway. Q. Graduated Dial: Indicates quill movement in increments of 0.001", with one full handwheel revolution equaling 0.
Milling Headstock Z X Y W. ON/OFF Switch w/Emergency Stop Button: When pressed, cuts power to motor and control panel. To reset, press front tab, lift switch cover, and press green ON button. Cover must be unlatched for machine to run. X. Mill Fault Light: Illuminates if mill motor is overloaded. Y. Fine Vertical Handwheel: Provides precision control of vertical headstock travel during setups. Z. Coarse Vertical Handwheel: Raises and lowers headstock for Z-axis spindle positioning during setups.
MACHINE DATA SHEET Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901 MODEL G0773 12" X 27" COMBO LATHE/MILL Product Dimensions: Weight.............................................................................................................................................................. 546 lbs. Width (side-to-side) x Depth (front-to-back) x Height........................................................................... 59 x 30 x 33 in.
Main Specifications: Lathe Info Swing Over Bed......................................................................................................................................... 12 in. Distance Between Centers.................................................................................................................. 27-1/2 in. Swing Over Cross Slide......................................................................................................................... 7-3/8 in.
Other Specifications: Country of Origin ................................................................................................................................................ China Warranty ........................................................................................................................................................... 1 Year Approximate Assembly & Setup Time ..............................................................................................................
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.
WEARING PROPER APPAREL. Do not wear clothing, apparel or jewelry that can become entangled in moving parts. Always tie back or cover long hair. Wear non-slip footwear to avoid accidental slips, which could cause loss of workpiece control. HAZARDOUS DUST. Dust created while using machinery may cause cancer, birth defects, or long-term respiratory damage. Be aware of dust hazards associated with each workpiece material, and always wear a NIOSH-approved respirator to reduce your risk. HEARING PROTECTION.
Additional Safety for Metal Lathes Serious injury or death can occur from getting entangled in, crushed between, or struck by rotating parts on a lathe! Unsecured tools or workpieces that fly loose from rotating objects can also strike nearby operators with deadly force. To minimize the risk of getting hurt or killed, anyone operating this machine MUST completely heed the hazards and warnings below. CLOTHING, JEWELRY & LONG HAIR. Tie back long hair, remove jewelry, and do not wear loose clothing or gloves.
Additional Safety for Mills The primary risks of operating a Mill are as follows: You can be seriously injured or killed by getting clothing, jewelry, or long hair entangled with rotating cutter. You can be severely cut or have fingers amputated from contact with the rotating cutter. You can be blinded or struck by broken cutting tools, metal chips, workpieces, or adjustment tools thrown from the rotating spindle with great force.
Additional Lathe Chuck Safety ENTANGLEMENT. Entanglement with a rotating chuck can lead to death, amputation, broken bones, or other serious injury. Never attempt to slow or stop the lathe chuck by hand, and always roll up long sleeves, tie back long hair, and remove any jewelry or loose apparel BEFORE operating. CHUCK SPEED RATING. Excessive spindle speeds greatly increase the risk of the workpiece or chuck being thrown from the machine with deadly force.
SECTION 2: POWER SUPPLY Availability 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.
Grounding & Plug Requirements 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.
SECTION 3: SETUP Setup Overview Unpacking The list below outlines the basic process of setting up the machine for first-time operation. Specific steps are covered later in this section. Your machine was carefully packaged for safe transportation. Remove the packaging materials from around your machine and inspect it. If you discover any damage, please call us immediately at (570) 546-9663 for advice. The typical setup process is as follows: 1. Unpack machine and inventory contents of box/crate. 2.
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. Installed Components (Figure 7) Qty. A. Lathe Chuck Guard..................................... 1 B. 3-Jaw Chuck............................................... 1 C. 4-Way Tool Post.............
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.
Site Considerations Weight Load Physical Environment Refer to the Machine Data Sheet for the weight of your machine. Make sure that the surface upon which the machine is placed will bear the weight of the machine, additional equipment that may be installed on the machine, and the heaviest workpiece that will be used. Additionally, consider the weight of the operator and any dynamic loading that may occur when operating the machine.
Lifting & Placing HEAVY LIFT! 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. 4. To balance load for lifting, move tailstock and carriage to right end of bedway, then lock them in place. Note: Before trying to move carriage, make sure carriage lock is loose and half nut is disengaged. 5.
Mounting & Leveling Number of Mounting Holes............................. 4 Diameter of Mounting Hardware.................. 1 ⁄ 2" Follow these guidelines when mounting your machine to ensure safe and accurate cutting results: • • Make sure stand or workbench can adequately support weight of machine and materials, and that it will not move or vibrate during operation.
Assembly 3. Place timing belt behind motor pulley and around motor timing-belt pulley (see Figure 15). With the exception of the handwheel handles and belts, the Model G0773 is shipped fully assembled. 4. Install free end of timing belt on timing-belt pulley (see Figure 15), making sure teeth of belt mesh with notches in pulley. To assemble machine: 5. Pull timing-belt up, creating tension in timing belt, then tighten (2) hex nuts from Step 1. 6. Loosen M8-1.
Test Run Once assembly is complete, test run the machine to ensure it is properly connected to power and safety components are functioning properly. 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 Troubleshooting table in the SERVICE section of this manual can help. 3. Set spindle direction switch to OFF position. 4. Set lathe/mill selector switch to "1". 5.
8. Press tab on side of Emergency Stop button to open switch cover (see Figure 19), and reset switch by pressing green ON button (be sure to leave switch cover open; otherwise, closing it will prevent operation). 12. Turn variable-speed dial (Figure 20) completely counterclockwise to lowest possible setting. VariableSpeed Dial Spindle Direction Switch Emergency Stop Button Switch Cover OFF Button ON Button Figure 20. Location of mill head Emergency Stop button and variable-speed dial. Figure 19.
Spindle Break-In 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.
SECTION 4: LATHE OPERATIONS Operation Overview 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 machine controls/components discussed later in this manual are easier to understand. Due to the generic nature of this overview, it is not intended to be an instructional guide.
Chuck Mounting Chuck Installation This lathe is equipped with a D1-type spindle nose. This type of spindle uses camlocks that are adjusted with a chuck key to securely mount a chuck or faceplate with repeatable precision and ease. To ensure accurate work, it is extremely important to make sure the spindle nose and chuck mating surfaces/tapers are clean. Even a small amount of lint or debris can affect accuracy. Never use spindle speeds faster than chuck RPM rating or safe limits of your workpiece.
5. Incrementally tighten camlocks in criss-cross or star pattern to ensure that chuck seats evenly against spindle. 6. When chuck is fully seated and all camlocks are tight, verify that cam line is between the two “V” marks on spindle nose, as shown in following figure. 7. Verify that chuck fits spindle properly by checking for any gaps between mating surfaces. —If there is not a gap, proceed to Step 8. —If there is a gap, remove chuck, re-clean mating surfaces carefully, and re-install.
Chuck Removal To remove chuck: 1. DISCONNECT LATHE FROM POWER! 2. Use appropriate lifting, support, or protective device to protect ways and support chuck (refer to Installation & Removal Devices section for more details). 3. Loosen camlocks by turning key counterclockwise until each cam line is aligned with its corresponding spindle mark, as shown below.
Changing Jaw Set The 3-jaw scroll chuck included with the lathe features inside and outside hardened steel jaw sets (see Figure below), which move in unison to center a concentric workpiece. 1. DISCONNECT MACHINE FROM POWER! 2. Use appropriate device to protect ways (refer to Installation & Removal Device subsection). 3. Insert chuck key and turn it counterclockwise to back jaws out and remove them individually in descending order (i.e., 3, 2, 1). 4.
Tailstock Tailstock Quill Specs The tailstock is typically used to support long workpieces at the side opposite the spindle, using a live or dead center. It can also hold a tapered drill bit (or a drill chuck with a regular drill bit) for boring holes. Unlike boring done with a drill press where the workpiece is fixed and the drill bit rotates, the drill bit in a tailstock remains stationary while the workpiece is rotated by the spindle.
Installing Tooling To install tooling in the tailstock: The tailstock quill accepts MT#3 tapered arbors (see the Figures below for examples). 1. With tailstock locked in place, unlock quill, then use handwheel to extend it approximately 1". 2. Thoroughly clean and dry tapered mating surfaces of quill and center, making sure no lint or oil remains on tapers. 3. With a firm and quick motion, insert tool into quill.
Offsetting Tailstock The tailstock quill can be offset from the spindle centerline for turning tapers. Offsetting quill toward the front of the lathe results in a taper at the tailstock end. Conversely, offsetting quill toward the back of the lathe results in a taper at the spindle end. Note: The marks on the offset indicator are arbitrary. For a precise offset, use a dial indicator to check quill movement while adjusting the screws.
4. Install center in tailstock. 5. Attach lathe dog to test stock from Step 2, then mount it between centers, as shown below. 8. Use calipers to measure both ends of workpiece. —If test stock is thicker at tailstock end, move tailstock toward front of lathe 1⁄2 the distance of taper amount, as shown below. Move tailstock toward front of lathe 1/2 the amount of taper. Looking down from above. Figure 37. Example of stock mounted between the centers. 6. Turn 0.010" off stock diameter. 7.
Dead Centers A dead center is a one-piece center that, when mounted in the tailstock, does not rotate with the workpiece and is used to support long, slender workpieces. Mounting Dead Center in Spindle 1. DISCONNECT LATHE FROM POWER! 2. Thoroughly clean and dry all threads and mating surfaces of spindle bore and center, making sure that no lint or oil remains on these surfaces.
Mounting Center in Tailstock Removing Center from Tailstock Either a carbide-tipped dead center or live center can be used in the tailstock. Mounting instructions are the same for both. The Figure below shows an example photo of a dead center mounted in a tailstock. To remove the center from the quill, hold onto it with a gloved hand or shop rag, then rotate the quill handwheel counterclockwise to draw the quill back into the casting until the center releases. Dead Center Figure 42.
Compound Rest Four-Way Tool Post The compound rest handwheel has an indirectread graduated scale. This means that the distance shown on the scale represents the actual distance the cutting tool moves. The base of the compound rest has another graduated scale used for setting the cutting tool to a specific angle. The four-way tool post is mounted on top of the compound rest and allows a maximum of four tools to be loaded simultaneously. Graduated Dial Increments................................ 0.001" (0.
Aligning Cutting Tool with Spindle Centerline For most operations, the cutting tool tip should be aligned with the spindle centerline, as illustrated below. Tools Needed Qty Tool Post T-Wrench............................................ 1 Steel Shims........................................ As Needed Cutting Tool........................................................ 1 Tailstock Center..................................................
Manual Feed The cutting tool can be manually fed into the workpiece using the carriage, cross slide, and compound rest handwheels shown below. Carriage Handwheel Compound Rest Handwheel Cross Slide Handwheel Figure 48. Manual feeding controls. Carriage Handwheel Graduated Dial Increments....................................0.08" (2.03mm) One Full Revolution.........................1.5" (38.1mm) Use the carriage handwheel to move the carriage left or right along the bed.
Spindle Speed Using the correct spindle speed is important for getting safe and satisfactory results, as well as maximizing tool life. To set the spindle speed for your operation, you will need to: 1) Determine the best spindle speed for the cutting task, and 2) Configure the lathe controls to produce the required spindle speed.
Understanding Gear Charts Thread Charts—Display headstock end gear positions used for cutting various metric or inch threads (see Figure 53). This subsection explains how to understand the feed and thread charts on the headstock. If you do not understand lathe gear charts, or need a quick refresher, read this before configuring the end gears for power feeding or threading operations.
How to Read the Feed Chart How to Read the Thread Charts Figure 54 identifies the fifteen available feed rates each for longitudinal and transverse carriage movement. Figure 57 identifies the charts to use when setting carriage feed movement for metric or inch threading. Indicates Threads Per Inch (TPI) Indicates Metric Thread Pitch Figure 54. G0773 feed rate chart. Figure 55 indicates that for a longitudinal feed rate of 0.0016 in/rev.
Power Feed Figure 60 shows how the gearing illustration in the thread chart relates to the end gears. The carriage has power feed (or automatic feed) options for threading or non-threading operations. This section describes how to use the power feed option for non-threading operations. To learn how to power the carriage for threading operations, refer to Threading on Page 49. Figure 60. Power feed gearing setup.
B. Feed Rate Chart: Displays dial settings for selected feed rate (see Figure 62). Setting Power Feed Rate Follow the example below to better understand how to set the lathe power feed. Tools Needed Qty Hex Wrench 5mm............................................... 1 Hex Wrench 8mm............................................... 1 To set a feed rate of 0.0016 in/rev.: 1. DISCONNECT MACHINE FROM POWER! 2. Install 30T change gear in "G" position (see Figure 64). 30T Change Gear Figure 62. Feed chart. C.
End Gears This section explains how to configure end gears for feeding and threading operations. Secondary Threading Configuration This configuration is used for metric and 19TPI threading. Mesh the "G" position gear with the 91T change gear, and mesh the 86T change gear with the 90T gear on the lower shaft, as shown in Figure 68. Power Feed Configuration The end gears are preset by the factory for power feeding (see Figure 66).
End-Gear Configuration Example 5. Follow the example below to better understand how to configure the end gears for inch threading. Tools Needed Qty Hex Wrench 5mm............................................... 1 Hex Wrench 6mm............................................... 1 Hex Wrench 8mm............................................... 1 Open-End Wrench 19mm................................... 1 To configure end gears for threading 72 TPI: 1.
10. Rotate the 91T gear up against the 30T gear until they mesh with 0.002" to 0.004" backlash and re-tighten arm support cap screw (see Figure 73). 30T Gear 91T Gear Gear-Support Shaft To configure end gears for reverse feed/ reverse threading operations: 1. DISCONNECT LATHE FROM POWER! 2. Open headstock end gear cover. 3. Loosen upper arm support cap screw shown in Figure 74. 4. Pivot upper arm-support up so 2nd upper arm gear and spindle gear mesh with 0.002" to 0.
Threading When threading, use slowest speed possible and avoid deep cuts, so you are able to disengage half nut when required to prevent a carriage crash! 3. Locate A above 72 TPI and find 1 to the left of it. Note: In the next step, use the chuck key to rock the spindle back-and-forth to help mesh the gears as you make adjustments. 4. Position gearbox dials, as shown in Figure 77.
Thread Dial To change thread dial gears: When the number "0" on the thread dial (Figure 79) aligns with the scale mark, this indicates when to engage the half nut during inch threading. 1. Loosen both cap screws shown in Figure 79 and remove thread dial. 2. Remove Phillips head screw shown in Figure 80, remove existing gear from thread dial, and replace with correct gear for threading operation. 3.
SECTION 5: MILL OPERATIONS Operation Overview 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 machine controls/components discussed later in this manual are easier to understand. Due to the generic nature of this overview, it is not intended to be an instructional guide.
Removing Compound Rest Headstock Movement The compound rest and tool post must be removed before milling operations so the cross-slide table can be used as the milling table. The milling headstock moves in the following ways: Tools Needed Qty Hex Wrench 3mm............................................... 1 Hex Wrench 4mm............................................... 1 • • Raising/Lowering Headstock 1. Removing Compound Rest Travels up and down the column (Z-axis).
Tilting Headstock Tool Needed Qty Wrench 36mm.................................................... 1 These movements are controlled by the carriage handwheel and cross slide handwheel (see Figure 88). To tilt headstock: 1. DISCONNECT MACHINE FROM POWER! 2. Support headstock with one hand, then loosen headstock center bolt and angle lock nut (see Figure 86). Cross Slide Table Cross Slide Handwheel (Y-Axis) Carriage Handwheel (X-Axis) Figure 88. Table travel controls. Angle Lock Nut Figure 86.
Installing/Removing Tooling 3. Insert tooling (not included) into spindle until in contacts drawbar. 4. Working from the top, thread drawbar by hand into tooling until snug (see Figure 90). Cutting tools are sharp and can easily cause cutting injuries. Always protect your hands with leather gloves or shop rags when handling cutting tools. Installing Tooling Tools Needed Qty Wrench 17mm.................................................... 1 Spindle Locking Pin............................................
Removing Tooling 5. Tools Needed Qty Wrench 17mm.................................................... 1 Spindle Locking Pin............................................ 1 Brass Hammer................................................... 1 Tap top of drawbar with hammer to unseat taper (see Figure 92). To remove tooling: 1. DISCONNECT MACHINE FROM POWER! 2. Remove drawbar cap. 3. Insert spindle locking pin into spindle, and loosen drawbar (see Figure 91 on Page 54). 4.
Spindle Speed Setting Spindle Speed 1. Set Lathe/Mill selector switch to 2 for milling operations (see Figure 94). Using the correct spindle speed is important for safe and satisfactory results, as well as maximizing tool life. Lathe/Mill Selector Switch To set the mill spindle speed for operation, you will need to: 1) Determine the best spindle speed for the cutting/drilling task, and 2) use the spindle speed dial to obtain the spindle speed.
ACCESSORIES SECTION 6: ACCESSORIES Installing unapproved accessories may 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. H2987—½" Bent Lathe Dog H2988—1" Bent Lathe Dog H2989—1½" Bent Lathe Dog H2990—2" Bent Lathe Dog H2991—3" Bent Lathe Dog NOTICE Refer to our website or latest catalog for additional recommended accessories. T10294—11 Pc.
G1070—MT3 Live Center Set A super blend of quality and convenience, this live center set offers seven interchangeable tips. High-quality needle bearings prolong tool life and special tool steel body and tips are precision ground. Supplied in wooden box.
T10253—2" Mini Self-Centering Swivel Vise T10254—2" Mini Self-Centering Vise Ideal for holding small parts and model making. Both models feature self-centering jaws, adjustable gib on a dovetailed way, 21⁄16" jaw opening, and 2" jaw width. T10253 base swivels 360°, and overall size is 63⁄4" L x 4" W x 33⁄8" H with handle removed. T10254 overall size is 61⁄2" L x 31⁄2" W x 23⁄8" H with handle removed. T10253 T10254 Figure 103. Mini Self-Centering Vises.
G9274—6" Stainless Steel Outside Calipers G9275—8” Stainless Steel Outside Calipers G9276—10” Stainless Steel Outside Calipers G9277—12” Stainless Steel Outside Calipers G9278—16” Stainless Steel Outside Calipers Spring Calipers with quick adjustment nut provide fast determination of external measurements. Ideal for physically transferring dimensions from originals. Five different sizes allow you to match the best caliper for your shop needs.
SECTION 7: MAINTENANCE Daily, After Operations Always disconnect power to the machine before performing maintenance. Failure to do this may result in serious personal injury. Schedule Ongoing To maintain a low risk of injury and proper machine operation, if you ever observe any of the items below, shut down the machine immediately and fix the problem before continuing operations: • • • • • Loose mounting bolts or fasteners. Worn, frayed, cracked, or damaged wires. Guards or covers removed.
Lubrication The lathe has metal-to-metal sliding surfaces that require regular lubrication to maintain smooth movement and ensure long-lasting precision. Other than the lubrication points covered in this section, all other bearings are internally lubricated and sealed at the factory. Simply leave them alone unless they need to be replaced.
Refer to Figures 111–113 to find the location of each ball oiler. Leadscrew & Carriage Rack Lube Type... Model SB1365 or ISO 68 Equivalent Lube Amount...................................... As Needed Lubrication Frequency.................................. Daily Before lubricating the leadscrew and carriage rack (see Figure 114), clean them first with mineral spirits. Use a stiff brush to help remove any debris or grime. Apply a thin coat of oil along the entire length of the carriage rack.
Feed Gearbox Cross Slide & Compound Slide Oil Type..... Grizzly T23963 or ISO 32 Equivalent Oil Amount................................................ 1 Quart Check/Add Frequency.................................. Daily Change Frequency................................. Annually Lube Type... Model SB1365 or ISO 68 Equivalent Lube Amount.........................................Thin Coat Lubrication Frequency..................................
End Gears Lube Type...Model T23964 or NLGI#2 Equivalent Frequency................ Annually or When Changing The end gears, shown in Figure 117, should always have a thin coat of heavy grease to minimize corrosion, noise, and wear. Wipe away excess grease that could be thrown onto the V-belts and reduce optimal power transmission from the motor. Lubricating 1. DISCONNECT MACHINE FROM POWER! 2. Remove end gear cover and all end gears shown in Figure 117. 3.
Machine Storage Column Rack Lube Type... Model SB1365 or ISO 68 Equivalent Lube Amount.........................................Thin Coat Lubrication Frequency.................................. Daily Regular lubrication will ensure your milling headstock performs at its highest potential. Regularly wipe table and column rack with recommended lubrication, then move components back and forth several times to ensure smooth movements (see Figure 118).
SECTION 8: SERVICE Review the troubleshooting and 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 at (570) 546-9663. Note: Please gather the serial number and manufacture date of your machine before calling. Troubleshooting Motor & Electrical Symptom Possible Cause Possible Solution Machine does not start or a circuit breaker trips. 1. Improper switch position at startup. 1.
Lathe Operation Symptom Possible Cause Possible Solution Bad surface finish. 1. Wrong spindle speed or feed rate. 2. Dull tooling or poor tool selection. 1. Adjust for appropriate spindle speed and feed rate. 2. Sharpen tooling or select a better tool for the intended operation. 3. Adjust tool height to spindle centerline (see Page 39). 4. Tighten gibs (see Page 72). 3. Tool height not at spindle centerline. 4. Too much play in gibs. Tapered tool difficult 1. Quill not fully retracted into tailstock.
Mill Operation Symptom Possible Cause Possible Solution Tool slips in spindle. 1. Tool is not fully drawn up into spindle taper. 2. Debris on tool or in spindle taper. 3. Taking too big of cut. 1. Tighten drawbar (Do not overtighten). 2. Clean collet and spindle taper. 3. Lessen depth of cut and allow chips to clear. Breaking tools or cutters. 1. Set spindle speed correctly (Page 56) or use slower feed rate. 2. Use larger cutting tool and slower feed rate. 3.
Tensioning & Replacing V-Belts The V-belt is correctly tensioned when there is approximately 1⁄8" deflection when pushed with moderate pressure between the pulleys, as shown in Figure 120. V-belts stretch and wear with use, so it is important that tension is routinely checked and adjusted as needed. Improperly tensioned V-belts will slip or poorly transmit power from the motor. We recommend checking the tension on a monthly basis to ensure optimal power transmission.
Adjusting Backlash Backlash is the amount of free play felt while changing rotation directions with the handwheel. This can be adjusted on the cross slide leadscrew. Before beginning any adjustment, make sure all associated components are cleaned and lubricated and locks are loose. When adjusting backlash, tighten the components enough to remove backlash, but not so much that the components bind the leadscrew, making it hard to turn. Overtightening will cause excessive wear to the nut and leadscrew.
Adjusting Gibs The goal of adjusting the gib screws is to remove sloppiness or "play" from the ways without overadjusting them to the point where they become stiff and difficult to move. Adjusting Cross Slide & Compound Slide Gibs 1. DISCONNECT MACHINE FROM POWER! 2. Loosen hex nuts on side of cross slide or compound slide (see Figures 123). In general, loose gibs cause poor finishes and tool chatter; however, over-tightened gibs cause premature wear and make it difficult to turn the handwheels.
Adjusting Half Nut 3. The rigidity of the half nut engagement is adjusted by tightening or loosening the half nut gib screws. Adjust the half nut if it feels too loose or too tight when being engaged. Movement that is too stiff will accelerate wear. Movement that is too sloppy will produce inaccurate turning or threading results. Loosen gib nuts and adjust screws in small, even increments so one end of the gib does not become tighter than the other (see Figure 124).
machine SECTION 9: WIRING 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.
Wiring Overview Emergency Stop BLDC Mill Motor 230V 2.8A 5 ⁄ 8 HP 5000 RPM Mill Rear Electrical Box Mill Safety Guard Limit Switch Circuit Breaker (Back Panel) Chint NB1-63 D16 400V 16A LED Fault Indicator Halogen Power Indicator Variable-Speed Dial Limit Switches (Inside) Lathe/Mill Selector Switch Halogen Power Indicator Emergency Stop Lathe Motor (Inside) 110V 11.6A Single-Phase 1 HP 1700 RPM Spindle Direction Switch Model G0773 (Mfd.
Wiring Diagram Br Br Or Pu M V U N L N U V M Mill Speed Control Circuit Board L Pu Rd Rd Halogen Power Indicator Halogen Power Lamp Indicator Fault Indicator LED (Yellow) CN103 13 14 A1 Pu Yl XMT_CON Or Gn Br Gy CN2 Wt CN1 15AL 250V ZZQ 101225A X-1 Rd CN4 CN3 Gy 23 24 230V 2.
Wiring Photos Figure 125. Control panel. Figure 128. Headstock casting. Figure 126. Mill rear electrical box and switch box. Figure 129. Back panel. Figure 127. Mill/drill motor. Figure 130. Start and run capacitors. Model G0773 (Mfd.
SECTION 10: PARTS Accessories 24 15 13 23-2 17 23-1 24-1 16 23-3 22 18 26 23 2 3 4 5 10 7 6 8 12 9 11 20 REF PART # DESCRIPTION REF PART # DESCRIPTION 2 3 4 5 6 7 8 9 10 11 12 13 15 HEX WRENCH 3MM HEX WRENCH 4MM HEX WRENCH 5MM HEX WRENCH 6MM HEX WRENCH 8MM WRENCH 8 X 10MM OPEN-ENDS WRENCH 12 X 14MM OPEN-ENDS WRENCH 17 X 19MM OPEN-ENDS DEAD CENTER MT#3 DEAD CENTER MT#5 BOTTLE FOR OIL SPANNER WRENCH 45-52MM HOOK-TYPE SPANNER WRENCH 63MM PIN-TYPE 16 17 18 20 22 23 23-1 23-2 23-3 24 2
Lathe Bed 101 122 119 122 119 124 125 122 125 102 103 104 120 106 121 119 111 105 110 108 109 108 107 113 114 115 112 117 113 124 116 118 REF PART # DESCRIPTION REF PART # DESCRIPTION 101 102 103 104 105 106 107 108 109 110 111 112 P07730101 P07730102 P07730103 P07730104 P07730105 P07730106 P07730107 P07730108 P07730109 P07730110 P07730111 P07730112 SPLASH GUARD CAP SCREW M8-1.25 X 12 FLAT WASHER 8MM LATHE BED LEADSCREW SHIELD LEADSCREW HEX NUT M12-1.
Headstock 203 204 202 205 201 207 206 229 228 227 226 225 224 223 222 215 230 231 204 220 209 208 219 216 217 218 221 233 242 237 204 209 279 278 226 238 240 226 280 249 243 248 236 230 229 228 245 265 247 227 282 283 284 285 297 296 295 294 292 293 226 245 299 298 286 289 287 288 290 291 281 251 -80- Model G0773 (Mfd.
Headstock Parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 201 202 203 204 205 206 207 208 209 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 233 236 237 238 240 HEADSTOCK COVER CAP SCREW M5-.8 X 12 FLAT HD SCR M5-.8 X 30 FLAT WASHER 4MM FLAT HD SCR M4-.7 X 8 LATHE CHUCK GUARD LATHE CHUCK GUARD WINDOW CAP SCREW M4-.7 X 16 HEX NUT M4-.7 HEX NUT M5-.8 COMPRESSION SPRING CAP SCREW M5-.
Tailstock 301 304 303 306 305 310 310 333 344 343 311 341 334 336 342 332 338 337 309 326 339 318 346 321 325 317 319 320 340 345 325 323 REF PART # DESCRIPTION REF PART # DESCRIPTION 301 303 304 305 306 309 310 311 317 318 319 320 321 323 325 QUILL LOCK HANDLE M8-1.25 X 10 TAILSTOCK LOCK HANDLE M10-1.5 X 14 TAILSTOCK LOCK HANDLE KNOB M10-1.5 QUILL LOCK HANDLE BASE M8-1.25 X 30 TAILSTOCK HANDLE BASE M12-1.
Tool Post 411 401 402 403 404 405 427 406 408 415 407 428 412 416 413 414 424 409 429 410 430 426 425 418 423 422 419 420 421 REF PART # DESCRIPTION REF PART # DESCRIPTION 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 TOOL POST LEVER M10-1.5 TOOL POST LEVER BASE M12-1.75 TOOL POST LEVER SPACER SQ HD BOLT M8-1.
Cross Slide 530 531 501 549 503 504 543 505 544 506 507 510 532 519 508 509 533 507 534 535 536 512 527 527 519 526 517 528 518 520 537 513 514 537 519 517 518 529 529 511 519 515 516 518 522 518 523 539 540 524 538 525 547 548 541 542 543 544 546 545 -84- Model G0773 (Mfd.
Cross Slide Parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 501 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 522 523 524 525 526 CAP SCREW M8-1.25 X 20 T-SLOT NUT 10MM, M8-1.25 CROSS SLIDE CASTING ROLL PIN 3 X 18 GEAR 22T THRUST BEARING 51100 LEADSCREW HUB CAP SCREW M6-1 X 35 SET SCREW M8-1.25 X 16 CONE-PT GRADUATED COLLAR HANDWHEEL CURVED PLATE SPRING HANDWHEEL 68MM DIA FLAT W/HANDLE HEX NUT M10-1.
Apron 601 602 634 603 635 604 636 605 637 638 658 659 660 661 662 663 664 658 640 669 668 629 617 618 657 646 647 648 671 672 673 674 649 647 639 651 652 606 653 650 654 655 621 619 629 656 609 -86- 620 615 670 667 610 644 645 641 613 611 614 641 642 643 613 666 603 608 607 604 612 641 630 625 616 622 631 632 626 623 627 633 624 628 Model G0773 (Mfd.
Apron Parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 CAP SCREW M5-.8 X 35 HEX NUT M5-.8 THIN HALF NUT SET SCREW M8-1.25 X 10 CARRIAGE CLAMP FENDER WASHER 6MM HEX NUT M5-.8 CAP SCREW M5-.8 X 16 ACORN NUT M6-1 RETAINING COLLAR WORM GEAR CARRIAGE SUPPORT, RIGHT CAP SCREW M5-.
Gearbox 710 709 707 702 701 703 728 705 711 708 726 721 720 723 727 728 715 729 701 716 733 731 734 732 724 722 770 719 760 761 717 735 741 741 730 748 736 741 714 706 723 741 712 711 738 739 754 749 740 755 757 752 756 751 701 758 759 750 742 768 735 743 701 744 745 746 767 766 773 761 725 765 764 768 763 718 762 753 769 770 771 704 747 737 762 772 -88- Model G0773 (Mfd.
Gearbox Parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 701 702 703 704 705 706 707 708 709 710 711 712 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 CAP SCREW M5-.
Change Gears 801 802 803 807 856 810 808 859 806 807 811 813 804 854 812 805 845 851 808 846 810 856 824 825 820 855 818 819 816 826 832 823 831 821 827 829 828 817 845 851 833 834 835 830 849 851 836 837 811 812 838 839 840 841 843 847 845 848 850 841 857 853 844 842 -90- Model G0773 (Mfd.
Change Gears Parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 801 802 803 804 805 806 807 808 810 811 812 813 816 817 818 819 820 821 823 824 825 826 827 828 829 830 831 PHLP HD SCR M4-.7 X 10 FLAT WASHER 4MM HEX NUT M4-.7 CHANGE GEAR ENCLOSURE HINGE CHANGE GEAR ENCLOSURE MOUNT GREASE FITTING 1/8PT 65-DEG SHAFT BUSHING SPACER CAP SCREW M8-1.25 X 25 FLAT WASHER 8MM SET SCREW M5-.8 X 10 CONE-PT PHLP HD SCR M5-.
Motor & Drive 901 914 903 902 915 916 904 910 911 909 912 917 908 906 913 921 922 923 925 924 936 939 925 937 929 930 919 940 927 941 943 944 935 929 932 932 933 934 907 926 927 928 938 931 920 918 905 969 970 950 945 945 946 947 948 949 935-1 935-4 935-3 935-2 935-6 935-7 935-8 -92- 935-5 935-9 Model G0773 (Mfd.
Motor & Drive Parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 P07730901 P07730902 P07730903 P07730904 P07730905 P07730906 P07730907 P07730908 P07730909 P07730910 P07730911 P07730912 P07730913 P07730914 P07730915 P07730916 P07730917 P07730918 P07730919 P07730920 P07730921 P07730922 P07730923 P07730924 P07730925 P07730926 P07730927 P07730928 P07730929 P07730930 POWER CORD 16
Mill 1094 1095 1093 1091 1160 1092 1090 1096 1081 1082 1083 1157 1099 1145 1140 1150 1088 1089 1148 1149 1010 1097 1098 1100 1010 1101 1105 1102 1107 1015 1108 1104 1185 1151 1014 1018 1147 1106 1015 1146 1114 1145-1 1115 1123 1103 1156 1164 1130 1117 1083 1129 1116 1166 1165 1130 1120 1167 1082 1118 1177 1113 1133 1168 1178 1119 1136 1131 1169 1132 1009 1121 1170 1179 1081 1126 1134 1171 1124 1149 1180 1085 1138 1137 1135 1128 1127 1172 1125 1182 1084 1122 1174 1183 1162 1143 1175 1181 1080 1004 1176
Mill Parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 1004 1009 1010 1014 1015 1018 1028 1031 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 FLAT WASHER 8MM HANDWHEEL CURVED PLATE SPRING CAP SCREW M6-1 X 12 SET SCREW M6-1 X 20 DOG-PT HEX NUT M6-1 THIN LOCKING HANDLE RIVET 2 X 3 FLUTED POSITION MARKER MILL TILT CLAMP KEY
Mill Parts Cont.
Labels & Cosmetics 1204 1203 1202 1205 1206 1201 1209 1207 1208 REF PART # DESCRIPTION REF PART # DESCRIPTION 1201 1202 1203 1204 1205 P07731201 P07731202 P07731203 P07731204 P07731205 PINCH/ENTANGLEMENT LABEL ELECTRICITY LABEL DISCONNECT 110V LABEL READ MANUAL LABEL FACE SHIELD & SAFETY GLASSES LABEL 1206 1207 1208 1209 P07731206 P07731207 P07731208 P07731209 ENTANGLEMENT HAZARD LABEL SPINDLE SPEED WARNING LABEL MACHINE ID LABEL GRIZZLY GREEN TOUCH-UP PAINT Safety labels help reduce the
SECTION 11: APPENDIX Threading & Feeding Chart -98- Thread Dial Chart Model G0773 (Mfd.
WARRANTY CARD Name _____________________________________________________________________________ Street _____________________________________________________________________________ City _______________________ State _________________________ Zip _____________________ Phone # ____________________ Email _________________________________________________ Model # ____________________ Order # _______________________ Serial # __________________ The following information is given on a voluntary basis.
FOLD ALONG DOTTED LINE Place Stamp Here GRIZZLY INDUSTRIAL, INC. P.O.
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.
