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Model G0727 (Mfg. Since 7/11)

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 to understand.

Due  to  the  generic  nature  of  this  overview,  it  is 

not intended to be an instructional guide. To learn 
more  about  specific  operations,  read  this  entire 
manual, seek additional training from experienced 
machine  operators,  and  do  additional  research 
outside of this manual by reading "how-to" books, 
trade magazines, or websites.

To complete a typical operation, the operator 

does the following:

1.  Examines  the  workpiece  to  make  sure  it  is 

safe and suitable for the operation.

2.  Installs the motor-spindle assembly in either 

the vertical or horizontal position.

3.  Installs the correct cutting tool for the opera-

tion.

4.  Places the workpiece on the table, positions 

the workpiece as necessary for the operation, 
and secures it to the table with clamps or a 
vise.

5.  Puts  on  personal  protective  equipment  and 

makes sure the table and workpiece are clear 
of tools, cords, and other items.

6.  Turns the mill ON, brings spindle rotation to 

the correct speed, then performs the opera-
tion.

7.  Turns the mill OFF after the operation is com-

plete and before removing the workpiece.

Serious eye and face injuries could result 

from using this machine without proper pro-

tective gear. Always wear safety glasses and 

a face shield when operating this machine.

To reduce the risk of 

serious injury when using 

this machine, read and 

understand this entire 

manual before operating.

NOTICE

If you have never used this type of machine 

or equipment before, WE STRONGLY REC-

OMMEND that you read books, review 

industry trade magazines, or get formal 

training before beginning any projects. 

Regardless of the content in this section, 

Grizzly Industrial will not be held liable for 

accidents caused by lack of training.

Summary of Contents for G0727

Page 1: ...ER S MANUAL For models manufactured since 7 11 COPYRIGHT NOVEMBER 2011 BY GRIZZLY INDUSTRIAL INC WARNING NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL O...

Page 2: ...g grinding tool integrity and the usage of personal protective equipment The manufacturer will not be held liable for injury or property damage from negligence improper training machine modifications...

Page 3: ...ecting Power 16 Test Run 16 Spindle Break In 17 Lubrication Gib Adjustments 17 SECTION 4 OPERATIONS 18 Operation Overview 18 Control Box 19 Table Movement 19 Locks 20 Graduated Dials 20 Vertical Head...

Page 4: ...Before calling make sure you write down the Manufacture Date and Serial Number from the machine ID label see below This information is required for us to provide proper tech support and it helps us d...

Page 5: ...erstand this entire manual before beginning any operations Figure 1 Model G0727 identification Control Box Ram Horizontal Arbor w Spacers Vertical Head Belt Housing Motor Table X Axis Handwheel Spindl...

Page 6: ...s Length x Width x Height 28 x 35 x 30 in Electrical Power Requirement 110V Single Phase 60 Hz Prewired Voltage 110V Full Load Current Rating 4 5A Minimum Circuit Size 15A Connection Type Cord Plug Po...

Page 7: ...0 Drawbar Length 7 13 32 in Horizontal Spindle Sizes 5 8 in Construction Spindle Housing Quill Chrome Plated Precision Ground Steel Table Ground Cast Iron Column Base Cast Iron Base Cast Iron Paint Ty...

Page 8: ...roof DANGEROUS ENVIRONMENTS Do not use machinery in areas that are wet cluttered or have poor lighting Operating machinery in these areas greatly increases the risk of accidents and injury MENTAL ALER...

Page 9: ...oving parts or flying debris Make sure they are properly installed undamaged and working correctly BEFORE operating machine FORCING MACHINERY Do not force machine It will do the job safer and better a...

Page 10: ...r debris from the cutting operation can cause eye injury or blindness To reduce this risk always use a face shield in addition to your safety glasses when milling WORK HOLDING Attempting to mill a wor...

Page 11: ...ndersized circuit To reduce the risk of these hazards avoid over loading the machine during operation and make sure it is connected to a power supply circuit that meets the specified circuit requireme...

Page 12: ...cate smaller sizes Any extension cord used with this machine must be in good condition and contain a ground wire and matching plug receptacle Additionally it must meet the following size requirements...

Page 13: ...nts are very heavy Get lifting help or use power lifting equipment to move heavy items This machine was carefully packaged for safe transport When unpacking separate all enclosed items from packaging...

Page 14: ...aging materials Often these items get lost in packaging materials while unpack ing or they are pre installed at the factory Small Item Inventory Figures 3 4 Qty A Horizontal Arbor Support Assembly 1 B...

Page 15: ...ags Cleaner degreaser WD 40 works well Safety glasses disposable gloves Plastic paint scraper optional Basic steps for removing rust preventative 1 Put on safety glasses 2 Coat the rust preventative w...

Page 16: ...onment The physical environment where the machine is operated is important for safe operation and lon gevity of machine components For best results operate this machine in a dry environment that is fr...

Page 17: ...workbench and hex bolts washers and hex nuts are used to secure the machine in place Machine Base Workbench Hex Bolt Flat Washer Flat Washer Lock Washer Hex Nut Figure 6 Example of a Through Mount set...

Page 18: ...set up properly 2 Make sure all tools and objects used during setup are cleared away from the machine 3 Rotate the spindle speed dial see Figure 11 all the way counterclockwise to set it at the minimu...

Page 19: ...re subjecting the mill to full loads you must break it in This will allow the bearings and the drive belt to fully seat and find their normal wear pattern To help ensure long life and smooth opera tio...

Page 20: ...tool for the opera tion 4 Places the workpiece on the table positions the workpiece as necessary for the operation and secures it to the table with clamps or a vise 5 Puts on personal protective equip...

Page 21: ...mp Illuminates if the spindle motor is overloaded When overloaded the motor stops To re start the motor turn the spindle speed dial counterclockwise to set a minimum speed adjust the operation to redu...

Page 22: ...tween the spin dle and the table Locks The table is equipped with X and Y axis lock levers see Figure 15 to prevent unexpected movement along either axis when movement is not required This helps ensur...

Page 23: ...zontal milling by changing the mounting posi tion of the motor spindle assembly Tool Needed Qty Hex Wrench 5mm 1 To convert the machine for vertical horizontal milling 1 DISCONNECT MILL FROM POWER 2 L...

Page 24: ...spindle collar cap screw to hold the motor spindle assembly in place See Figures 22 23 for examples of each conver sion R8 Tooling The Model G0727 spindle accepts R8 tooling that is held in place with...

Page 25: ...ISCONNECT MILL FROM POWER 2 Use a clean shop rag and mineral spirits to clean the mating surfaces of the tooling and spindle then allow them to dry Note Any lint oil or debris left on the mating surfa...

Page 26: ...ROM POWER 2 If the tooling is mounted horizontally remove the horizontal arbor support 3 Loosen the drawbar 2 3 revolutions then tap the hex wrench with a mallet to release the tool taper from the spi...

Page 27: ...e can t be beat With micro grain structure and precision grinding these end mill will breeze through the toughest machining jobs Figure 29 Solid carbide end mill T20501 Face Shield Crown Protector 4 T...

Page 28: ...ing smaller precision work It features a whole degree scale on the dial worm gear drive lash adjustment screw reference lines and ball bearing rotary support Comes supplied with 2 each 6mm clamping st...

Page 29: ...your face or hands All unpainted and machined surfaces should be wiped down daily with a good quality way oil such as shown in Figure 34 on the previous page to keep them rust free and in top conditio...

Page 30: ...ew Ball Oilers Oil Type Grizzly H8257 or ISO 68 Equivalent Oil Amount As Needed Pump Oil Can w Plastic or Rubber Cone Tip 1 Lubrication Frequency Before Operation The two ball oilers shown in Figure 3...

Page 31: ...hen replace it 5 Correct motor wiring connections see Page 35 6 Test for power on all legs and contactor operation Replace unit if faulty 7 Ensure power supply is switched ON ensure power supply has t...

Page 32: ...debris from collet and spindle taper 4 Lessen depth of cut and allow chips to clear Breaking tools or cutters 1 Spindle speed or feed rate is too fast 2 Cutting tool getting too hot 3 Taking too big...

Page 33: ...ace ment 7 When the belt is properly tensioned re tighten the bracket hex bolts and replace both covers Pulley Deflection Pulley Figure 41 Checking belt tension 5 Check the condition of the drive belt...

Page 34: ...Test the feel of the component by moving it back and forth then if necessary adjust the screws that hold the gib in place to make the movement tighter or looser Repeat the adjust ment process as nece...

Page 35: ...ws 1 2 full revolu tions 4 Move the sliding component back and forth a couple of inches to make sure the gib is loose 5 Re tighten each set screw until resistance is felt as it meets the gib 6 Move th...

Page 36: ...t at the time of printing but may not match your machine If you find this to be the case use the wiring diagram inside the motor junction box CAPACITORS INVERTERS Some capacitors and power inverters s...

Page 37: ...P4 P5 P6 23 24 A1 14 13 Overload Lamp Electrical Box Master Power Switch Circuit Board 110VAC NEMA 5 15 Plug Motor Power Cord Connector Spindle Motor Power Lamp ZD10 Spindle Speed Dial Fuse Neutral Ho...

Page 38: ...36 Model G0727 Mfg Since 7 11 READ ELECTRICAL SAFETY ON PAGE 34 Electrical Components Figure 46 Circuit board wiring Figure 47 Control box wiring...

Page 39: ...19 20 22 23 24 25 26 27 28 29 30 31 31 31 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 63 64 65 118 119 120 121 122 123 124 125 127 128 128 12...

Page 40: ...ZONTAL ARBOR 119 P0727119 CIRCUIT BOARD SIEG XMT 1135 26 P0727026 RAM GIB 120 P0727120 POWER CORD 18G 3W 54 5 15 27 P0727027 SET SCREW M6 1 X 30 121 P0727121 CONTROL BOX 28 P0727028 HEX NUT M6 1 122 P...

Page 41: ...67 168 168 168 66 67 68 69 70 71 72 73 74 74 74 74 75 75 76 76 76 77 78 79 169 80 81 82 83 84 85 86 86 86 87 88 89 90 91 92 92 92 93 93 93 94 94 94 95 95 95 96 96 96 97 97 97 98 99 99 100 101 102 103...

Page 42: ...7076 HANDWHEEL 106 P0727106 CAP SCREW M6 1 X 10 77 P0727077 Z AXIS LEADSCREW BASE 107 P0727107 SET SCREW M5 8 X 8 78 P0727078 Z AXIS LEADSCREW NUT 108 P0727108 LOCK COLLAR 79 P0727079 Z AXIS LEADSCREW...

Page 43: ...EX WRENCH 6MM 152 P0727152 DRILL CHUCK JT33 1 13MM 159 P0727159 HEX WRENCH 5MM 153 P0727153 DRILL CHUCK KEY 160 P0727160 HEX WRENCH 4MM 154 P0727154 COMBO WRENCH 21 24MM 161 P0727161 HEX WRENCH 3MM 15...

Page 44: ...ABEL 203 P0727203 READ MANUAL LABEL 208 P0727208 BLACK TOUCH UP PAINT 204 P0727204 DISCONNECT POWER LABEL 209 P0727209 GRIZZLY GREEN TOUCH UP PAINT 205 P0727205 EYE INJURY HAZARD LABEL Safety labels h...

Page 45: ...metalworker ____ 0 2 Years ____ 2 8 Years ____ 8 20 Years ____20 Years 6 How many of your machines or tools are Grizzly ____ 0 2 ____ 3 5 ____ 6 9 ____10 7 Do you think your machine represents a good...

Page 46: ...LINE FOLD ALONG DOTTED LINE GRIZZLY INDUSTRIAL INC P O BOX 2069 BELLINGHAM WA 98227 2069 Place Stamp Here Name_______________________________ Street_______________________________ City______________S...

Page 47: ...shall be tried in the State of Washington County of Whatcom We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arisi...

Page 48: ......

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