Grizzly G0668 Owner'S Manual Download Page 25

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G0668 20" Vertical Metal-Cutting Bandsaw

chip inspection chart

Chip Inspection Chart

The best method of evaluating the performance of your cutting operation is to inspect the chips that are
formed. Refer to the chart below for chip inspection guidelines.

Chip

Appearance

Chip

Description

Chip

Color

Blade

Speed

Feed

Pressure

Additional

Actions

Thin & Curled

Silver

Good

Hard, Thick &

Short

Brown or Blue

Decrease

Lubricate with

Light Oil

Hard, Strong &

Thick

Brown or Blue

Decrease

Lubricate with

Light Oil

Hard, Strong &

Thick

Silver or Light

Brown

Good

Decrease

Slightly

Check Blade

Pitch

Hard & Thin

Silver

Increase

Decrease

Check Blade

Pitch

Straight & Thin

Silver

Good

Increase

Powdery

Silver

Decrease

Increase

Curled Tight &

Thin

Silver

Good

Decrease

Check Blade

Pitch

��

Figure 16.

Chip inspection chart.

Summary of Contents for G0668

Page 1: ...TTING BANDSAW OWNER S MANUAL COPYRIGHT FEBRUARY 2008 BY GRIZZLY INDUSTRIAL INC WARNING NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRI...

Page 2: ......

Page 3: ...NTY AND RETURNS 57 INTRODUCTION 2 Foreword 2 Contact Info 2 Machine Data Sheet 3 Identification 5 Control Panel Identification 6 SECTION 1 SAFETY 7 Safety Instructions for Machinery 7 Safety Instructi...

Page 4: ...no obligation on the part of Grizzly For your convenience we always keep current Grizzly manuals available on our website at www grizzly com Any updates to your machine will be reflected in these man...

Page 5: ...3 G0668 20 Vertical Metal Cutting Bandsaw Machine Data Sheet data sheet...

Page 6: ...4 G0668 20 Vertical Metal Cutting Bandsaw...

Page 7: ...Upper Wheel Door C Guide Post Elevation Handwheel D Guide Post Lock Knob E Work Light 220V F Air Hose Jet G Blade Tension Handwheel H Table Tilt Scale I Motor Access Panel J Machine Mounting Flange K...

Page 8: ...B C D E F H I A Digital Speed Display FPM B Variable Speed Dial C Welding ON Button D Annealing ON Button E Clamping Pressure Dial F Welding Clamp G Welding Clamp Lock Levers H Grinding Wheel ON OFF S...

Page 9: ...7 G0668 20 Vertical Metal Cutting Bandsaw Safety Instructions for Machinery...

Page 10: ...8 G0668 20 Vertical Metal Cutting Bandsaw...

Page 11: ...sing the machine Contact our Technical Support Department at 570 546 9663 1 BLADE CONDITION Do not operate with dull cracked or badly worn blade that can break during operation or decrease the per for...

Page 12: ...ve a ground wire and plug pin A qualified electrician MUST size cords over 50 feet long to prevent motor damage Phase Converter Precaution The power from the manufactured leg of a phase converter may...

Page 13: ...Needed for Setup Your machine was carefully packaged for safe transportation Remove the packaging materials from around your machine and inspect it If you discover the machine is damaged please imme...

Page 14: ...this protective coating with a solvent cleaner or degreaser shown in Figure 4 For thorough cleaning some parts must be removed For opti mum performance from your machine clean all moving parts or sli...

Page 15: ...ng hazard if you decide to move your machine NOTICE We strongly recommend securing your machine to the floor if it is hardwired to the power source Consult with your electrician to ensure compliance w...

Page 16: ...heel doors are closed and secured 3 Make sure the blade is properly tensioned and the blade guides are positioned correctly refer to Blade Tensioning on Page 25 and Adjusting Blade Guides on Page 26 f...

Page 17: ...ERVICE section starting on Page 34 Factory adjustments that should be verified 1 Lower wheel pulley alignment refer to Page 36 2 Tensioning V belts refer to Page 36 Recommended Adjustments NOTICE Afte...

Page 18: ...eas ily checked by examining the shape and color of the metal chips Workpieces that cannot be supported or stabilized without a vise or jig should not be cut on a vertical metal cutting bandsaw becau...

Page 19: ...utting inspect the material for any of the following conditions and take the neces sary precautions Small or Thin Workpieces Small or thin workpieces are dangerous to cut if held by hand avoid cutting...

Page 20: ...tart Button Turns the bandsaw motor ON Emergency Stop Button Turns the bandsaw motor OFF Blade Post Lock Knob Secures the blade post and upper blade guide assembly in position Blade Guide Elevation Ha...

Page 21: ...the chart in Figure 12 to choose the correct blade for curve cutting Determine the smallest radius curve that will be cut on your workpiece and use the corresponding blade width blade widths and radi...

Page 22: ...set tooth The raker is ideal for most contour cuts Figure 14 Bandsaw blade tooth types Variable Pitch VP Varying gullet depth and tooth spacing a 0 rake angle excellent chip removing capacity and smoo...

Page 23: ...the Material Width Diameter row of the blade selection chart in Figure 15 and read across to find the workpiece thickness you need to cut Material Width Diameter Material Shapes Teeth Per Inch TPI for...

Page 24: ...en the total width of the blade is in the cut 4 Use the Chip Inspection Chart on Page 23 to check the blade efficiency Blade Breakage Many conditions may cause a bandsaw blade to break Blade breakage...

Page 25: ...peed Feed Pressure Additional Actions Thin Curled Silver Good Good Hard Thick Short Brown or Blue Decrease Decrease Lubricate with Light Oil Hard Strong Thick Brown or Blue Decrease Decrease Lubricate...

Page 26: ...6 Rotate the top wheel by hand several times to make sure the blade tracks evenly without wandering across the wheel surface Note If the blade wanders across the wheel the wheel alignment may need to...

Page 27: ...wo purpos es 1 To properly position the blade guard to pro tect the operator from the exposed blade between the workpiece and the upper wheel housing and 2 to position the upper blade guides close to...

Page 28: ...s 20 21 adjusting blade guides Figure 20 Upper blade guides and bracket Blade Support Cap Screw Blade Guide Bracket Cap Screw 4 Position the blade guides so that they are approximately 1 16 behind the...

Page 29: ...wn in Figure 24 Figure 24 Using a dollar bill to set blade guide spacing 9 Lightly pinch the dollar bill against the blade with the blade guides re position the air nozzle if necessary then re tighten...

Page 30: ...electric current that flows through the blade welder during operation could cause serious personal injury or death To avoid the risk of electrocution never touch the blade or any metal part of the mac...

Page 31: ...clamp and position it so that it evenly butts up against the opposing blade end then lock it in place by rotating that lock lever all the way up as shown in Figure 30 Note For a good blade weld it is...

Page 32: ...hold the annealing button two or three times until the weld zone turns dull red 15 Repeat Step 14 three to four more times allowing the weld to cool for about 30 sec onds between each repetition Figu...

Page 33: ...Figure 36 H5408 Blade Tensioning Gauge H5408 Blade Tensioning Gauge The Blade Tensioning Gauge ensures long blade life reduced blade breakage and straight cutting by indicating correct tension A preci...

Page 34: ...chip pan Correct any other unsafe condition Monthly Check for V belt tension damage or wear Lubricate tension leadscrews and guide post rack Remove the blade and clean the wheels Re adjust the lower...

Page 35: ...ne unless they need to be replaced Before lubricating the tension leadscrew or guide post rack wipe as much of the old grease off as possible The old grease will be contaminated with metal dust and in...

Page 36: ...es or disconnected corroded connections and repair replace as necessary 8 Replace inverter 9 Test repair replace Machine stalls or is overloaded 1 Feeding workpiece too fast 2 Workpiece alignment is p...

Page 37: ...pect weld and re weld blade if necessary Page 28 or replace blade Page 24 Blade contacting table 1 Table improperly mounted or aligned 1 Properly align table Page 40 Vibration when cut ting 1 Workpiec...

Page 38: ...2 Checking for correct V belt tension Lower Wheel Pulley Alignment Tools Needed Qty Hex Wrench 6mm 1 Wrench 19mm 1 The correct alignment of the motor and lower wheel pulleys helps to ensure correct an...

Page 39: ...of V belts onto the pulleys then correctly tension them as described on Page 36 5 Secure the motor access panel to the machine before re connecting it to power Figure 43 Motor mounting hex bolts Moto...

Page 40: ...2x4 with a jointer before cutting 2 DISCONNECT BANDSAW FROM POWER 3 Remove the table assembly then open both wheel covers 4 Move the upper and lower blade guides and rear support away from the blade t...

Page 41: ...e adjustment hex bolts to bring the upper wheel coplanar with the lower wheel Note Threading an adjustment hex bolt in will force that part of the wheel forward Conversely threading an adjustment hex...

Page 42: ...ble is not square to the blade it needs to be adjusted Tools Needed Qty Hex Wrench 5mm 1 Wrench 12mm 1 To adjust the table square to the blade 1 DISCONNECT BANDSAW FROM POWER 2 Make sure the wheels ar...

Page 43: ...ome difficult to properly adjust the guides to the blade refer to Adjusting Blade Guides Support on Page 26 If this is the case swap and turn over the blade guides so that the inserts are reversed rel...

Page 44: ...agram Electrical Panel see Figure 57 on Page 44 Control Panel see Figure 55 on Page 44 To Motor Fan see Photo Wiring Diagram on Page 45 To Welding Station see Photo Wiring Diagram on Page 46 To Invert...

Page 45: ...ing Diagram Figure 53 Digital display wiring Figure 54 Variable speed dial wiring inverter wiring diagram To Motor see Photo Wiring Diagram on Page 45 To Electrical Panel see Figure 57 on Page 44 Wiri...

Page 46: ...gure 55 Control panel wiring see wiring diagram on Page 42 Figure 56 Inverter Controller box wiring see wiring diagram on Page 43 Figure 57 Main electrical wiring see wiring diagram on Page 42 electri...

Page 47: ...45 G0668 20 Vertical Metal Cutting Bandsaw Figure 58 Motor junction box wiring Motor Wiring Diagram motor wiring diagram Motor Fan Wiring To Control Panel see Page 42 Motor...

Page 48: ...46 G0668 20 Vertical Metal Cutting Bandsaw Figure 59 Welding station wiring Welding Station Wiring Diagram welding station wiring diagram To Electrical Panel see Page 42...

Page 49: ...N 23 P0668023 MOTOR ACCESS PANEL 5 P0668005 BLADE CLEANING BRUSH 24 PW03M FLAT WASHER 6MM 6 PS47M PHLP HD SCR M6 1 X 25 25 PB04M HEX BOLT M6 1 X 10 7 P0668007 WHEEL DOOR UPPER 26 P0668026 CHIP PAN 8 P...

Page 50: ...4M CAP SCREW M8 1 25 X 20 103 P0668103 BLADE GUIDE 112 P0668112 TRUNNION BASE 104 P0668104 BLADE GUIDE BRACKET LOWER 113 PSB14M CAP SCREW M8 1 25 X 20 105 P0668105 GUIDE POST LOWER 114 PW01M FLAT WASH...

Page 51: ...PB170M HEX BOLT M10 1 5 X 10 215 PSS105M SET SCREW M12 1 75 X 35 205 P0668205 COLLAR 216 PVA66 V BELT A 66 4L660 206 PSS20M SET SCREW M8 1 25 X 8 217 P0668217 MOTOR PULLEY 207 P6206Z BALL BEARING 620...

Page 52: ...50 G0668 20 Vertical Metal Cutting Bandsaw Welding Station...

Page 53: ...311 P0668311 WELDING JAW LEFT 335 PW03M FLAT WASHER 6MM 312 PSB26M CAP SCREW M6 1 X 12 336 PSB02M CAP SCREW M6 1 X 20 313 PEC09M E CLIP 6MM 337 PSB02M CAP SCREW M6 1 X 20 314 P0668314 SHAFT 338 P06683...

Page 54: ...P0668517 HANDWHEEL HANDLE 505 P0668505 BLADE SUPPORT 518 P0668518 HANDWHEEL 506 PSB02M CAP SCREW M6 1 X 20 519 PSS02M SET SCREW M6 1 X 6 507 P0668507 PIN 4 X 6 520 P0668520 BRACKET 508 P0668508 GUIDE...

Page 55: ...06 P6304Z BALL BEARING 6304Z 617 P0668617 COLLAR 607 P0668607 BEARING HOUSING 618 P2901 THRUST BEARING 2901 608 P0668608 UPPER WHEEL SHAFT 619 P0668619 TENSIONING BRACKET 609 P0668609 KEY 620 P0668620...

Page 56: ...Grizzly at 800 523 4777 or www grizzly com to order new labels REF PART DESCRIPTION REF PART DESCRIPTION 401 P0668401 MODEL LABEL 407 P0668407 MACHINE ID LABEL 402 P0668402 BLADE SPECIFICATION LABEL...

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Page 59: ...he 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 arising from the use of...

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