Page 3 - Table of Contents
Table of Contents INTRODUCTION ............................................... 2 Contact Info.................................................... 2Manual Accuracy ........................................... 2Left Front View Identification ......................... 3Right Front View Identification .....
Page 4 - Contact Info; Manual Accuracy; INTRODUCTION
-2- Model G0757Z (Mfd. Since 02/15) We stand behind our machines! If you have ques-tions or need help, contact us with the information below. Before contacting, make sure you get the serial number and manufacture date from the machine ID label. This will help us help you faster. Grizzly Technical Su...
Page 5 - Left Front View Identification
Model G0757Z (Mfd. Since 02/15) -3- Left Front View Identification Master Control Panel Horizontal Arbor Support X-Axis Handwheel Electrical Cabinet Base Splash Pan Coolant Pump VerticalSpindle Coolant Nozzle Spindle Motor DRO Halogen Work Light
Page 6 - Right Front View Identification
-4- Model G0757Z (Mfd. Since 02/15) Right Front View Identification Horizontal Spindle X-Axis Handwheel X-Axis Power Feed Coarse Downfeed Lever High/Low Gear Selector Fine Downfeed Handwheel Z-Axis Crank Y-Axis Handwheel Ram Controls
Page 7 - Components; Control Panel
Model G0757Z (Mfd. Since 02/15) -5- Controls & Components Refer to Figures 1–4 and the following descrip- tions to become familiar with the basic controls and components of this machine. Understanding these items and how they work will help you understand the rest of the manual and stay safe whe...
Page 8 - Headstock
-6- Model G0757Z (Mfd. Since 02/15) I. POWER Lamp Button: When pressed, illu- minates and enables power to control panel. E-STOP button must be reset first. J. E-STOP Button: Disables power to control panel and stops all machine functions. To reset, twist button clockwise until it pops out. K. Coola...
Page 9 - MODEL G0757Z VARIABLE‐SPEED HORIZONTAL/VERTICAL; Machine Data Sheet
Model G0757Z (Mfd. Since 02/15) -7- The information contained herein is deemed accurate as of 7/20/2015 and represents our most recent product specifications. Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. PAGE 1 OF 3 Model G0757Z MAC...
Page 12 - For Your Own Safety, Read Instruction; NOTICE; Safety Instructions for Machinery
-10- Model G0757Z (Mfd. Since 02/15) ELECTRICAL EQUIPMENT INJURY RISKS. You can be shocked, burned, or killed by touching live electrical components or improperly grounded machinery. To reduce this risk, only allow qualified service personnel to do electrical installation or repair work, and always ...
Page 14 - Additional Safety for Milling Machines
-12- Model G0757Z (Mfd. Since 02/15) Additional Safety for Milling Machines UNDERSTAND ALL CONTROLS. Make sure you understand the function and proper use of all controls before starting. This will help you avoid making mistakes that result in serious injury. WEAR FACE SHIELD. Always wear a face shie...
Page 15 - SECTION 2: POWER SUPPLY; Availability
Model G0757Z (Mfg. Since 02/15) -13- SECTION 2: POWER SUPPLY Availability Before installing the machine, consider the avail-ability 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...
Page 17 - Needed for Setup
Model G0757Z (Mfd. Since 02/15) -15- SECTION 3: SETUP Description Qty• Precision Level ........................................... 1 • Safety Glasses (for each person) ............... 1 • Solvent/Cleaner ( Page 17) ......................... 1 • Mineral Spirits ............................. As Needed...
Page 18 - Inventory
-16- Model G0757Z (Mfd. Since 02/15) Figure 6. Toolbox inventory. A B C D E F G H NOTICE If you cannot find an item on this list, care- fully check around /inside the machine and packaging materials. Often, these items get lost in packaging materials while unpack- ing or they are pre-installed at th...
Page 19 - Cleanup
Model G0757Z (Mfd. Since 02/15) -17- 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 clean...
Page 20 - Site Considerations; Weight Load; Space Allocation
-18- Model G0757Z (Mfd. Since 02/15) Site Considerations Figure 9. Minimum working clearances. Wall Wall 30" Minimum Clearance 58" 76" 30" Minimum Clearance Weight Load Refer to the Machine Data Sheet for the weight of your machine. Make sure that the surface upon which the machine i...
Page 22 - Anchoring to Concrete Floors
-20- Model G0757Z (Mfd. Since 02/15) Anchoring to Floor Number of Mounting Holes ............................ 4 Diameter of Mounting Hardware ................. 1 ⁄ 2 " Leveling Leveling machinery helps precision components, such as dovetail ways, remain straight and flat during the lifespan of t...
Page 23 - Verifying Lubrication; Assembly
Model G0757Z (Mfd. Since 02/15) -21- GEARBOX MUST BE FILLED WITH OIL! OIL MAY NOT BE SHIPPED WITH MACHINE! Refer to Lubrication Section for Correct Oil Type. Verifying Lubrication This machine was shipped from the factory with oil in it, but the headstock oil reservoir level must be verified before ...
Page 25 - Power Connection; Test Run; Mill Test Run
Model G0757Z (Mfd. Since 02/15) -23- Power Connection Electrocution or fire can occur if machine is ungrounded, incorrectly connected to power, or connected to an undersized circuit. Use an electrician or a qualified ser- vice personnel to ensure a safe power connection. Before the machine can be co...
Page 26 - OFF
-24- Model G0757Z (Mfd. Since 02/15) 7. Press POWER button on control panel to enable power to machine—power button and spindle RPM readout should light. 8. Turn variable-speed dial fully counterclock- wise, then press FORWARD button (vertical spindle). Rotate variable-speed dial clock-wise until 10...
Page 27 - Power Feed Test Run; Vertical Spindle Break-In
Model G0757Z (Mfd. Since 02/15) -25- Power Feed Test Run The mill comes with a power feed unit for X-axis table travel. Proper operation of the limit switch attached to the front middle of the table is criti-cal for the safe use of this power feed unit. If the power feed does not operate as expected...
Page 28 - Horizontal Spindle Break-In; Adjustments
-26- Model G0757Z (Mfd. Since 02/15) Horizontal Spindle Break-In 1 . Run horizontal spindle at 72 RPM for 10 minutes (see Page 35 for details on how to change speeds). 2. Reverse spindle rotation direction and run spindle for an additional 10 minutes. 3. Run spindle for 5 minutes in each direction o...
Page 29 - SECTION 4: OPERATIONS; Operation Overview
Model G0757Z (Mfd. Since 02/15) -27- SECTION 4: OPERATIONS Operation Overview The purpose of this overview is to provide the nov-ice 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 t...
Page 30 - Table Movement; Graduated Index Rings
-28- Model G0757Z (Mfd. Since 02/15) Table Movement The table travels in three directions, as illustrated in Figure 19. These movements are controlled by table handwheels and the Z-axis crank. Additionally, the table can be moved along the X-axis with the power feed and manually rotated 45° left and...
Page 31 - Table Rotation; Head Tilt
Model G0757Z (Mfd. Since 02/15) -29- Table Rotation The table rotates 45° left or right (see Figure 22). Figure 22. Table rotated 45° to the right. Hex Nuts (2 of 4) Tool Needed Qty Open-End Wrench 19mm .................................. 1 To rotate table: 1. DISCONNECT MACHINE FROM POWER! 2. Remove...
Page 32 - Ram Movement; Moving Ram Forward/Backward
-30- Model G0757Z (Mfd. Since 02/15) Ram Movement The ram travels forward/backward 11" and rotates 180° on the turret. Tools Needed Qty Open-End Wrench 15mm .................................. 1Open-End Wrench 24mm .................................. 1 Moving Ram Forward/Backward 1. DISCONNECT MAC...
Page 33 - Vertical Spindle
Model G0757Z (Mfd. Since 02/15) -31- Installing /Removing Tooling Vertical Spindle Tooling is held in the vertical spindle by a combi-nation of the R-8 taper, a pin inside the spindle, and a 7 ⁄ 16 "-20 drawbar. Cutting tools are sharp and can easily cause laceration injuries. Use heavy leather ...
Page 34 - Removing Vertical Spindle Tooling
-32- Model G0757Z (Mfd. Since 02/15) Installing Horizontal Spindle & Tooling Single or multiple cutters (gang milling) can be arranged anywhere along the length of the arbor for simple to very complex cutting operations. 4. With one hand holding tooling in place, insert vertical drawbar (longer ...
Page 36 - Removing Horizontal Spindle Tooling
-34- Model G0757Z (Mfd. Since 02/15) 10. Add ISO 68 oil or equivalent to horizontal spindle and arbor support ball oilers (refer to Ball Oilers, beginning on Page 47). 11. Install cutter(s) and spacers on arbor in such a way that last spacer is inside brass bushing and arbor threads are fully expose...
Page 37 - Spindle Speed; Determining Spindle Speed
Model G0757Z (Mfd. Since 02/15) -35- Spindle Speed Using the correct spindle speed is important for safe and satisfactory results, as well as maximiz-ing 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) confi...
Page 39 - Vertical Spindle Speeds; Horizontal Spindle Speeds
Model G0757Z (Mfd. Since 02/15) -37- Using Spindle Downfeed Controls Use Figure 39 and the descriptions below to understand the downfeed components that con-trol the 5" spindle downfeed travel. Figure 39. Spindle downfeed controls. Fine Downfeed Handwheel Coarse Downfeed Lever Selection Lever Qu...
Page 41 - SECTION 5: ACCESSORIES; order online at
Model G0757Z (Mfd. Since 02/15) -39- SECTION 5: ACCESSORIES 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. NOTICE Refer to o...
Page 46 - SECTION 6: MAINTENANCE; Schedule; Ongoing
-44- Model G0757Z (Mfd. Since 02/15) SECTION 6: MAINTENANCE Schedule To reduce risk of shock or accidental startup, always disconnect machine from power before adjustments, maintenance, or service. Metal chips and other debris left on the machine will invite oxidation and a gummy residue build-up ar...
Page 47 - Lubrication
Model G0757Z (Mfd. Since 02/15) -45- Lubrication The mill has numerous moving metal-to-metal contacts that require regular and proper lubrica-tion to ensure efficient and long-lasting operation. Other than the lubrication points covered in this section, all other bearings are internally lubricated a...
Page 49 - Ball Oilers
Model G0757Z (Mfd. Since 02/15) -47- Ball Oilers Oil Type ......Model T23963 or ISO 32 EquivalentOil Amount ......................................... 1–2 PumpsLubrication Frequency ...... 4–8 Hrs. of Operation Proper lubrication of ball oilers is done with a pump-type oil can that has a cone tip (se...
Page 52 - X-Axis Power Feed Gears
-50- Model G0757Z (Mfd. Since 02/15) X-Axis Power Feed Gears Grease Type .........T23964 or NLGI#2 EquivalentAmount .................................................Thin CoatAdd Frequency ....................40 Hrs. of Operation Tool Needed Qty Open-End Wrench 19mm .....................................
Page 53 - Coolant; Hazards
Model G0757Z (Mfd. Since 02/15) -51- Adding /Changing Coolant BIOLOGICAL & POISON HAZARD! Use the correct person- al protection equipment when handling coolant. Follow federal, state, and fluid manufacturer requirements for proper disposal. Hazards As some coolant ages, dangerous microbes can pr...
Page 55 - Tensioning Upper Horizontal Spindle
Model G0757Z (Mfd. Since 02/15) -53- 3. Loosen tension thumbwheel and hex nut behind lower idler pulley bracket. Note: In next step, you may have to bump lower idler pulley with dead blow hammer to get it to move. 4. Apply pressure on lower idler pulley to the left as you tighten tension thumbwheel....
Page 56 - Machine Storage; Preparing Mill for Storage; Bringing Mill Out of Storage
-54- Model G0757Z (Mfd. Since 02/15) Machine Storage The machine must be properly prepared if it will be stored for any period of time. Doing this will help prevent the development of rust and corro-sion and ensure the mill remains in good condition for later use. Note: When taking the machine out o...
Page 57 - Troubleshooting
Model G0757Z (Mfd. Since 02/15) -55- 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. Note: Please gather the serial number and manufacture date of your ma...
Page 58 - Mill Operations
-56- Model G0757Z (Mfd. Since 02/15) Symptom Possible Cause Possible Solution Machine has vibration or noisy operation. 1. Workpiece loose. 2. Chuck or cutter at fault. 3. Motor or component loose. 4. V-belt(s) worn or loose.5. Motor fan rubbing on fan cover.6. Motor mount loose/broken.7. Pulley loo...
Page 60 - Tramming Mill Head
-58- Model G0757Z (Mfd. Since 02/15) After positioning the head at an angle and when your operation requires that the spindle axis be precisely perpendicular to the table, you must tram or align the spindle with the table to ensure the spindle is exactly 90° to the table. This procedure involves mou...
Page 62 - Adjusting Leadscrew
-60- Model G0757Z (Mfd. Since 02/15) 9. Rotate spindle so indicator point rests on par- allel block, as illustrated in Figure 79, then zero dial. 10. Rotate spindle so that indicator point rests on other end of block in same manner, then read dial. — If indicator dial still reads zero or is within t...
Page 63 - Adjusting Gibs
Model G0757Z (Mfd. Since 02/15) -61- Adjusting Gibs Gibs are tapered lengths of metal that are sand-wiched between two moving surfaces. Gibs con-trol the gap between these surfaces and how they slide past one another. Correctly adjusting the gibs is critical to producing good results. Correctly posi...
Page 64 - Wiring Safety Instructions
-62- Model G0757Z (Mfd. Since 02/15) SHOCK HAZARD. Working on wiring that is con-nected to a power source is extremely dangerous. Touching electrified parts will result in personal injury including but not limited to severe burns, electrocution, or death. Disconnect the power from the machine before...
Page 65 - Wiring Overview
Model G0757Z (Mfd. Since 02/15) -63- READ ELECTRICAL SAFETY ON PAGE 62! Wiring Overview Component Location Rear Column Limit Switch LongJing LXW511Q1 6-15 Plug (As Recommended) Hot Hot Ground 220 VAC G RPM Sensor COM NO NC X-Axis Power Feed ASONG AS-235 Electrical Panel Page 64 Vertical Spindle Moto...
Page 66 - ON; Electrical Panel Wiring Diagram
-64- Model G0757Z (Mfd. Since 02/15) READ ELECTRICAL SAFETY ON PAGE 62! A1 1L1 13NO 21NC 31NC 43NO 14NO 22NC 32NC 44NO 3L2 5L3 2T1 4T2 6T3 A2 KM1 Contactor Siemens 3TB41 24V Master Power Switch A1 1L1 13NO 21NC 31NC 43NO 14NO 22NC 32NC 44NO 3L2 5L3 2T1 4T2 6T3 A2 KM2 Contactor Siemens 3TB41 24V A1 1...
Page 67 - Electrical Panel Wiring
Model G0757Z (Mfd. Since 02/15) -65- READ ELECTRICAL SAFETY ON PAGE 62! Electrical Panel Wiring Figure 83. Electrical panel wiring.
Page 68 - Control Panel Wiring
-66- Model G0757Z (Mfd. Since 02/15) READ ELECTRICAL SAFETY ON PAGE 62! Control Panel Wiring Minger LA125H-BE102C 1 3 1 2 4 3 4 3 4 3 4 3 4 2 1 2 Minger LA125H-BE101C Minger LA125H-BE101C Minger LA125H-BE102C Minger LA125H-BE101C Master Control Panel (Viewed from Behind) STOP (Vertical) REVERSE (Ver...
Page 69 - Horizontal Spindle Motor Wiring
Model G0757Z (Mfd. Since 02/15) -67- READ ELECTRICAL SAFETY ON PAGE 62! Figure 85. Vertical spindle motor wiring. Horizontal Spindle Motor Wiring Vertical Spindle Motor Wiring Figure 86. Horizontal spindle motor wiring. 220V Motor 220V Motor Fan U1 U2 V1 V2 W1 W2 Ground U1 U1 U2 V2 W2 W1 W1 PE V1 V1...
Page 70 - Coolant Pump Wiring; DRO
-68- Model G0757Z (Mfd. Since 02/15) READ ELECTRICAL SAFETY ON PAGE 62! Coolant Pump Wiring DRO Wiring Figure 87. Coolant pump wiring. Figure 88. DRO wiring. DRO (Viewed from Behind) XY Z Z-Axis Scale 500mm Y-Axis Scale 300mm X-Axis Scale 650mm Coolant Pump Gnd CBB61 Run Capacitor 5MFD 450VAC PE To ...
Page 71 - Column
Model G0757Z (Mfd. Since 02/15) -69- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 17 18 19 20 20 20 20 21 22 23 23 24 26 27 88 90 91 92 89 95 96 97 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 41 44 45 46 47 47 48 49 50 51 52 53 54 55 55 56 57 58 59 60 60 61 62 63 64 65 66 67 68 69 50 71 72 73 74 75 76...
Page 72 - Column Parts List
-70- Model G0757Z (Mfd. Since 02/15) REF PART # DESCRIPTION REF PART # DESCRIPTION 1 P0757Z001 BASE 51 P0757Z051 KNEE 2 P0757Z002 COLUMN 52 P0757Z052 SPLASH PAN 3 P0757Z003 Z-AXIS LEADSCREW HOUSING 53 P0757Z053 CAP SCREW M6-1 X 12 4 P0757Z004 LOCK WASHER 10MM 54 P0757Z054 Z-AXIS LEADSCREW 5 P0757Z00...
Page 73 - Table
Model G0757Z (Mfd. Since 02/15) -71- Table 101 101 101 102 102 102 103 103 103 104 104 104 105 105 105 106 107 106 107 108 108 109 110 110 111 111 112 112 113 113 113 113 114 115 116 117 118 109 120 121 156 157 158 159 160 161 162 162 163 163 168 164 164 165 165 167 167 166 168 169 169 166 170 122 1...
Page 74 - Table Parts List
-72- Model G0757Z (Mfd. Since 02/15) Table Parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 101 P0757Z101 HANDLE STEP SCREW M8-1.25 X 12 136 P0757Z136 PHLP HD SCR M5-.8 X 10 102 P0757Z102 HANDWHEEL HANDLE 137 P0757Z137 BALL OILER 8MM PRESS-IN 103 P0757Z103 HEX NUT M12-1.75 138 P0757Z138 LOCK...
Page 75 - Horizontal Spindle
Model G0757Z (Mfd. Since 02/15) -73- Horizontal Spindle 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 221 222 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 232 241 242 243 244 244 245 246 247 248 249 250 250-1 250-2 250-3 250-4 250-5 25...
Page 76 - Horizontal Spindle Parts List
-74- Model G0757Z (Mfd. Since 02/15) Horizontal Spindle Parts List REF PART # DESCRIPTION REF PART # DESCRIPTION 201 P0757Z201 CAP SCREW M8-1.25 X 25 239 P0757Z239 TENSION ROD END BRACKET 202 P0757Z202 BALL OILER 8MM PRESS-IN 241 P0757Z241 THUMB WHEEL M8-1.25 203 P0757Z203 INBOARD END COVER 242 P075...
Page 78 - Vertical Spindle Parts List
-76- Model G0757Z (Mfd. Since 02/15) REF PART # DESCRIPTION REF PART # DESCRIPTION 301 P0757Z301 HEADSTOCK CASTING 329 P0757Z329 COARSE DOWNFEED LEVER HUB 302 P0757Z302 GEAR 50T 330 P0757Z330 COARSE DOWNFEED LEVER M12-1.75 X 15 303 P0757Z303 CAP SCREW M6-1 X 70 331 P0757Z331 COMPRESSION SPRING 304 P...
Page 79 - Vertical Gearbox
Model G0757Z (Mfd. Since 02/15) -77- Vertical Gearbox 401 402 403 403 404 411 411 408 409 404 410 411 414 415 416 412 413 455 460 454 423 423 452 451 450 417 417 430 431 417 417 417 417 418 419 420 420 420 432 433 437 434 435 436 438 439 440 441 442 443 444 446 448 447 445 422 422 422 449 424 425 42...
Page 80 - Vertical Gearbox Parts List
-78- Model G0757Z (Mfd. Since 02/15) REF PART # DESCRIPTION REF PART # DESCRIPTION 401 P0757Z401 GEARBOX CASTING 435 P0757Z435 ROCKER ARM 402 P0757Z402 COLLAR 436 P0757Z436 EXT RETAINING RING 10MM 403 P0757Z403 OIL SEAL FB 45 X 62 X 8MM 437 P0757Z437 DOWEL PIN 5 X 30MM 404 P0757Z404 BALL BEARING 600...
Page 81 - Electrical Components
Model G0757Z (Mfd. Since 02/15) -79- Electrical Components A1 1L1 13NO 21NC 31NC 43NO 14NO 22NC 32NC 44NO 3L2 5L3 2T1 4T2 6T3 A2 KM1 Contactor Siemens 3TB41 24V A1 1L1 13NO 21NC 31NC 43NO 14NO 22NC 32NC 44NO 3L2 5L3 2T1 4T2 6T3 A2 KM2 Contactor Siemens 3TB41 24V A1 1L1 13NO 21NC 31NC 43NO 14NO 22NC ...
Page 83 - Accessories
Model G0757Z (Mfd. Since 02/15) -81- Accessories 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 REF PART # DESCRIPTION REF PART # DESCRIPTION 601 P0757Z601 BOTTLE FOR OIL 610 P0757Z610 HEX WRENCH 6MM 602 P0757Z602 TOOLBOX 611 P0757Z611 HEX WRENCH 5MM 603 P0757Z603 SPINDLE SL...
Page 85 - WARRANTY CARD
C U T A LO N G D O T T E D LI N E Name _____________________________________________________________________________ Street _____________________________________________________________________________City _______________________ State _________________________ Zip _____________________Phone # _____...
