Grizzly Industrial G9729 - Manuals

-4- G9729 Combination Lathe/Mill MODEL G9729 COMBO LATHE/ MILL Customer Service #: (570) 546-9663 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901 MACHINE DATA SHEET Design Type: Bench Model Overall Dimensions: Overall Length ......................................................................

G9729 Combination Lathe/Mill -5- Figure 1. G9729 Controls and features. A. Fine Downfeed Handle B. Quill Downfeed Lever C. Upper Belt Guard D. Head Stock E. Mill/Drill Motor F. Head Locks G. Power Indicator H. ON Switch I. Emergency Stop J. Reversing Switch—Lathe K. Feed Lever L. Feed Rate Selection...

-6- G9729 Combination Lathe/Mill 4. ALWAYS USE HEARING PROTECTION WHEN OPERATING MACHINERY. Machinery noise can cause permanent hearing damage. 5. WEAR PROPER APPAREL. DO NOT wear loose clothing, gloves, neckties, rings, or jewelry which may get caught in moving parts. Wear protective hair covering ...

-8- G9729 Combination Lathe/Mill Additional Safety Instructions for Lathe /Mills 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...

G9729 Combination Lathe/Mill -9- The following is a list of common definitions, terms and phrases used throughout this manual as they relate to this lathe/mill and metalworking in general. Become familiar with these terms for assembling, adjusting or operating this machine. Your safety is VERY impor...

-10- G9729 Combination Lathe/Mill Figure 2. Typical 5-15 plug and receptacle. Serious personal injury could occur if you connect the machine to the power source before you have completed the set up pro- cess. DO NOT connect the machine to the power source until instructed to do so. 110V Operation Am...

G9729 Combination Lathe/Mill -11- The Model G9729 was carefully packed when it left our warehouse. If you discover the machine is damaged after you have signed for delivery, please immediately call Customer Service at (570) 546-9663 for advice. Save the containers and all packing materials for possi...

-12- G9729 Combination Lathe/Mill Inventory After all the parts have been removed from the two boxes, you should have the following items: Box 1: (Figure 3) Qty A . Model G9729 Combo Lathe/Mill ................. 1 B . Face Plate .................................................. 1 C . Adaptor Plate ...

G9729 Combination Lathe/Mill -13- Hardware Recognition Chart

-14- G9729 Combination Lathe/Mill Floor and Workbench Load Your Model G9729 weighs 525 lbs. Most com-mercial or garage shop floors should be sufficient to carry the weight. Before moving the Lathe/Mill onto a residential floor, inspect it carefully to determine that it will be sufficient to carry th...

G9729 Combination Lathe/Mill -15- Moving & Placing Base Unit The Model G9729 is a heavy machine, 525 lbs. DO NOT move the machine by yourself – you will need assistance and power equipment. Serious personal injury may occur if safe mov- ing methods are not fol- lowed. Wear safety glasses dur- in...

G9729 Combination Lathe/Mill -17- The Model G9729 Lathe/Mill comes equipped with a steady rest and follow rest. These are used to support smaller stock while turning, drilling or boring. They are installed at the factory for ship-ping purposes and should be removed at this time. The steady rest has ...

-18- G9729 Combination Lathe/Mill Now that the lathe/mill is set up and you have read the safety guidelines, it’s time to give each motor a test run. The purpose of the test run is to make sure the lathe/mill is wired correctly and the motors are working properly before proceeding with addi-tional s...

G9729 Combination Lathe/Mill -19- Damage to your eyes, lungs, and ears could result from using this machine without proper protective gear. Always wear safety glasses, a respirator, and hearing protection when operating this machine. Loose hair and cloth- ing could get caught in machinery and cause ...

G9729 Combination Lathe/Mill -21- Please note that an adapter plate has been pro-vided for mounting a 4-jaw chuck. Please see Grizzly’s current catalog for ordering information on 4-jaw chucks. To use this adaptor plate: 1. Fasten the plate to the 4-jaw chuck using the screws provided with the chuck...

-22- G9729 Combination Lathe/Mill Figure 12. Jaws for the 3-jaw chuck. Figure 13. Workholding options. Chuck Jaws The 3-jaw chuck supplied with the lathe/mill comes with 2 sets of jaws which are depicted in Figure 12 . These are commonly known as the internal and external jaws. While both can hold a...

G9729 Combination Lathe/Mill -23- Figure 14. Arrow points to the lead of the scroll. Replacing Jaws Changing jaws on the 3-jaw chuck is straight for-ward, but attention must be paid to the sequence in which the jaws are loaded into the chuck. Follow the instructions below. To replace the jaws: 1. Un...

-24- G9729 Combination Lathe/Mill The face plate supplied with the model G9729 Lathe/Mill can be easily mounted to the spindle once the chuck has been removed. Installing the faceplate follows the same steps as any of the lathe chucks . In Figure 15 the face plate is being set up to hold a workpiece...

G9729 Combination Lathe/Mill -25- Dead Center The dead center is used to support stock that is too long to be supported by the chuck alone. Stock protruding more than 2 1 ⁄ 2 times its diameter should be supported by a dead or live center. The tailstock quill and the dead center have a Morse Taper #...

-26- G9729 Combination Lathe/Mill Tool Post Figure 18. Four cutting tools mounted into the tool post shown with lock lever. 1. Left Hand Tool 2. Right Hand Tool 3. Threading Tool 4. Lock Lever 5. Boring Bar Figure 19. Using a center to check tool bit height. The Model G9729 comes supplied with a 4-w...

G9729 Combination Lathe/Mill -27- Figure 20. Detail of tailstock controls. Tailstock Controls Figure 20 shows the locations of the tailstock controls. 1. Tailstock Handwheel Turning the handwheel advances or retracts the quill in the tailstock. The graduated dial on the handwheel is adjustable. 2. Q...

G9729 Combination Lathe/Mill -29- Tailstock Drill Mounting Tailstock Drill Removal Prior to mounting the drill chuck into the tailstock, wipe the inside of the tailstock quill and arbor down with a clean dry cloth and inspect them for nicks or scratches. Any irregularities on the surface of the arbo...

-30- G9729 Combination Lathe/Mill Apron The longitudinal motion of the apron is controlled by the lower handwheel ( Figure 28 ) on the face of the apron or the hand crank at the end of the lathe bed. The handwheel will be used most often, but when the hand crank is used, remember that the half nut m...

G9729 Combination Lathe/Mill -31- Figure 29. Carriage lock. The carriage lock lever is located under the right hand side of the apron as shown in Figure 29 . This allows the carriage to be locked in place for precision facing operations while using the lathe or to make a set up in a milling operatio...

-32- G9729 Combination Lathe/Mill Figure 31. Setting the brass finger with an indicator. 4. Lubricate the brass finger surfaces with oil prior to seating them on the workpiece and occasionally during use. 5. Adjust the brass fingers until they lightly touch the workpiece. Note— To minimize deflectio...

G9729 Combination Lathe/Mill -33- Figure 33. Loading the workpiece into the steady rest. Steady Rest Figure 32. Steady rest supporting a part to be faced. The steady rest is used for the same reasons as the follow rest and also when support is needed for a workpiece that cannot be supported by a cen...

-34- G9729 Combination Lathe/Mill Lathe Speeds Figure 34. Lathe speed chart. � � � ����� ����� ������� � � � ������������������������������� ���� ���� ���� ���� ���� ���� ������� ���� ���� ���� ���� ���� ���� Example: To select a spindle speed of 160 RPM, refer to Figure 34. To change belt position:...

G9729 Combination Lathe/Mill -35- Start Up and Spindle Break-in Procedures It is essential to closely follow the proper break-in procedures to ensure trouble free performance. Complete this process once you have familiarized yourself with all instructions in this manual. To begin the start up and br...

-36- G9729 Combination Lathe/Mill Figure 37. Feed rate selection lever. Feed Selection The Feed Rate selection Lever, shown in Figure 37 , controls internal gears that change the feed rate. The coarsest setting for the feed rate lever is in the “I” position. When the lever is turned to the “II” posi...

G9729 Combination Lathe/Mill -37- Reading the Charts Charts for the powerfeed and thread cutting fea-tures for the lathe are located on the bottom of the lower belt guard. Figure 38 shows a segment of the chart for feed rates with a brief description. Figure 38. Rates given in millimeters and inches...

-38- G9729 Combination Lathe/Mill Figure 40. Half nut lever disengaged. Half Nut The half nut lever is located under the left hand side apron ( Figure 40 ). This handle may be engaged and disengaged while the machine is running and while making a cut. Move the lever to the down position to engage th...

G9729 Combination Lathe/Mill -39- Changing Gears To change gears: 1. Unplug the lathe/mill! 2. Remove the nuts on the end of the shafts for gears A and D (see Figure 42 ). 3. Loosen the cap screw E, at the bottom of the gear support bracket and allow it to rotate downward. 4. Remove the cap screw in...

-40- G9729 Combination Lathe/Mill Figure 45. Gears aligned and engaged. Figure 44. Flats on bushing align with slot. 7. Insert the bushing into the 60/100 tooth combination gear from the side that has 60 teeth. Align the flats of the bushing to the slot in the gear support arm and loosely fas-ten th...

-42- G9729 Combination Lathe/Mill Cutting Threads 1 . Set the compound rest to the appropriate angle for the given thread you want to cut. For a Unified National Series thread, this is 29º off of vertical to spindle axis. 2 . Set the tool tip perpendicular to the workpiece and center it vertically. ...

G9729 Combination Lathe/Mill -43- I II III A 120T 127T A 24T 36 42 48 60 72 mm mm The metric threading gear chart is illustrated in Figure 52. The layout is listed below to help iden- tify gears for cutting threads with metric pitches. The chart below lists threads in millimeters. Example: To cut a ...

-44- G9729 Combination Lathe/Mill SECTION 5: MILL OPERATIONS Mill Speeds Figure 55. Mill speed chart. Figure 54. Upper pulleys for speed changes. The speed of the drill press spindle is controlled by two belts mounted between three pulleys. The belts and pulleys are accessed by removing the upper be...

-46- G9729 Combination Lathe/Mill The Model G9729 comes supplied with a mill-ing vise that also serves as the compound for the lathe. The 4-way tool post must be removed before using the vise. The milling vise can be aligned to the axis of the lathe or at any angle desired. Care must be given to set...

G9729 Combination Lathe/Mill -47- Drill Chuck Removal The drill chuck and arbor come installed on the drill press/milling spindle from the factory. When the time comes to remove and reinstall it, use these instructions: To remove the drill chuck from the drill press/ milling spindle: 1. Unplug the l...

-48- G9729 Combination Lathe/Mill SECTION 6: ACCESSORIES G5641—1-2-3 Blocks G9815—Parallel Set Blocks are square to within .0003". Measure 1" x 2" x 3". Parallel set measures 6" long by 1 / 2 ", 5 / 8 ", 3 / 4 ", 7 / 8 ", 1", 1 1 / 8 ", 1 1 / 4 ", 1 1 ...

-50- G9729 Combination Lathe/Mill Always disconnect power to the machine before performing maintenance. Failure to do this may result in serious person- al injury. Cleaning SECTION 7: MAINTENANCE ! Protect the unpainted cast iron surfaces on the table by wiping the table clean after every use. Keep ...

G9729 Combination Lathe/Mill -51- Lubrication Your Model G9729 will function best when it is clean and well lubricated. Take the time to wipe down and oil the machine before each use. We recommend using ISO 68 or SAE 20W non-detergent oil unless otherwise specified. Ball fit-tings will require the u...

G9729 Combination Lathe/Mill -53- Always dis c o nn e c t power to the machine before performing ser- vice adjustments. Failure to do this may result in serious personal injury. This section is designed to help the operator with adjustments that were made at the factory and that might also need to b...

G9729 Combination Lathe/Mill -55- Symptom Possible Cause Possible Solution Motor will not start. 1. Low voltage.2. Open circuit in motor or loose connec- tions. 3. Faulty start capacitor. 1. Check power line for proper voltage.2. Inspect all lead connections on motor for loose or open connections. 3...

-56- G9729 Combination Lathe/Mill �� �� �� �� �� � � � � � ��� ��� ��� ��� ��� �� �� � � � �� �� �� �� �� �� �� �� � Electrical Diagram Lathe Switch E Figure 77. G9729 wiring diagram. Mill Switch Mill Motor E-Stop Switch Power Indicator Light AC Contactor Power Switch Micro Switch Lathe Motor

G9729 Combination Lathe/Mill -57- Electrical Components Micro Switch AC Contactor Run Capacitor Start Capacitor Wiring Block Power Light Lathe Reversing Switch E-Stop Button Power Button

-58- G9729 Combination Lathe/Mill 139 138 149 148 146 136 140 141 142 143 151 153 154 152 150 162 147 167 168 158 159 160 166 163 164 165 23 9 161 119 155 145 134 101 8 8A 8B 8C 8D 7 11 1T 113 120 119 112 117 115 114 135 137 147 144 121 127 128 130 123 124 131 133 114 129 132 126 125 124 10 21 20 19...

G9729 Combination Lathe/Mill -69- REF PART # DESCRIPTION REF PART # DESCRIPTION T201 P9729T201 THREAD DIAL SEAT T706 P9729T706 BASE T202 P9729T202 SHAFT T707 P9729T707 RIVET T203 P9729T203 INDICATOR PLATE T708 P9729T708 SCALE T204 P9729T204 PHLP HD SCREW M4-.7 X 12 T709 P9729T709 VICE T205 P9729T205...

-74- G9729 Combination Lathe/Mill 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...

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