Grizzly G0664 Blade Breakage, Workpiece Inspection, Most common causes of blade breakage are

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Blade Breakage

Many conditions may cause a bandsaw blade to break. Blade breakage is unavoidable, in some cases, since it is the natural result of the peculiar stresses that bandsaw blades must endure. Blade breakage is also due to avoidable circumstances. Avoidable blade breakage is most often the result of poor care or judgement on the part of the operator when mounting or adjusting the blade or support guides.

The most common causes of blade breakage are:

•Faulty alignment or adjustment of the blade guides.

•Feeding the blade too fast.

•Dull or damaged teeth.

•Over-tensioned blade.

•Top blade guide assembly set too high above the workpiece. Adjust the top blade guide assembly so that there is approximately ½" between the bottom of the assembly and the workpiece.

•Using a blade with a lumpy or improperly fin- ished braze or weld.

•Continuously running the bandsaw when not in use.

•Leaving the blade tensioned when not in use.

•Using the wrong pitch (TPI) for the workpiece thickness. The general rule of thumb is to have at least two teeth in contact with the workpiece at all times during cutting.

G0664 Heavy Duty Metal-Cutting Bandsaw

Workpiece

Inspection

Some metal workpieces are not safe to cut with a metal cutting bandsaw; instead, a different tool or machine should be used.

Before cutting, inspect the material for any of the following conditions and take the neces- sary precautions:

•Small or Thin Workpieces: Small or thin workpieces may be damaged during cut- ting—avoid cutting these workpieces if possi- ble. If you must cut a small or thin workpiece, attach it to or clamp it between larger scrap pieces that will both support the workpiece through the cut. Some thin sheet metals will not withstand the forces from this bandsaw during cutting; instead, use a shear, nibblers, or sheet metal nippers to cut these pieces.

•Unstable Workpieces: Workpieces that can- not be properly supported or stabilized with the vise should not be cut on this bandsaw. Examples are chains, cables, workpieces with internal or built-in moving or rotating parts, etc.

•Material Hardness: Always factor in the hard- ness of the metal before cutting it. Hardened metals will take longer to cut, may require lubrication, and may require a different type of blade in order to efficiently cut them.

•Tanks, Cylinders, Containers, Valves, Etc:

Cutting into containers that are pressur- ized or contain gasses or liquids can cause explosions, fires, caustic burns, or machine damage. Avoid cutting any of these types of containers unless you have verified that the container is empty and it can be properly sup- ported during a cut.

•Magnesium: Pure magnesium burns eas- ily. Cutting magnesium with a dull blade can create enough friction to ignite the small magnesium chips. Avoid cutting magnesium if possible.

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Contents Model G0664 Heavy Duty Metal Cutting Ss ,EAD from Leadbased PAINTS Table of Contents Foreword Functional Overview IntroductionContact Info Identification Machine Data Sheet Coolant Pump Motor  !,7!93 53%3 %!2.2 02/4%#4/ %. /0%2!4.! -!#.%29  !,7!93 53% !.3 !002/6%$$ 3!&%49 ,!33%33 7%. /0%2!4 53%3 2%#/--%.$%$- !##%33/2%3  53%3!!2/5.$%$ %84%.3/..#/2$ 2!4%$4&/2/4%-!#.%!-0%2!%2 -!.9 -!#.%3 #!. %*%#4 7/2+0%#%3 4/7!2$ /0%2!4/2  !,7!93 ,/#+ -/,% !3%3 & 53%$ % %&/2% /0%2!4. -!#.%29#Hearing Protection & Hazards Additional Safety Instructions for Bandsaws220V Operation Circuit RequirementsSetup Safety SetupSetup Items Needed forMachine Inventory Figure Qty InventoryHardware Recognition Chart Placement Location Clean UpSite Considerations Floor LoadTo move the machine Moving & PlacingMounting to Shop Floor Using Machine MountsBolting to Concrete Floors Leveling Feet To install the leveling feetMachine Leveling Proceed to Leveling MachineTo assemble the roller tables Roller Table AssemblyCoolant Reservoir Cover/Catch Tray Required Adjustments34/0 Utton Test RunFactory adjustments that should be verified Recommended AdjustmentsOperations Operation SafetyBlade Guide Lock Handle Locks/Releases Basic ControlsBlade Downfeed Knob Control PanelTo set the cutting angle between 0 Cutting AngleTo position the blade guide Coolant Catch TrayWorkstopVise To install the workstopTo use the vise #/--%.$%$ To use the cutting fluid system Cutting Fluid SystemCutting Fluid Tips Blade Terminology Blade SelectionBlade Pitch TPI To select the correct blade pitchBlade Length Setting Feed RateBlade Width To set the feed rateMaterial speed table G0664 Heavy Duty Metal-Cutting Bandsaw Blade SpeedAdditional Chip Inspection ChartAppearance ActionsBlade Care Break-In Blade TensioningBlade Care Blade Break-InWorkpiece Inspection Blade BreakageMost common causes of blade breakage are Tanks, Cylinders, Containers, Valves, EtcOperation Tips H5405-LenoxLube Tube AccessoriesT20448T20452 T20501 T20456 H0736 G5562-SLIPIT1 Qt. Gel G5563-SLIPIT12 oz SprayCleaning MaintenanceSchedule LubricationChecking Hydraulic Fluid Hydraulic SystemChanging Hydraulic Fluid Figure Troubleshooting ServiceMotor & Electrical Bandsaw Operations Or Blade Speed on Page 34 and adjust asHydraulic System Troubleshooting Blade Change Blade Guides Wheel Brush To adjust/replace the wheel brushTo square the blade Squaring BladeSwivel Stops To adjust the swivel stopsTo adjust the feed stop bolt Limit SwitchesTo set the upper travel auto stop and lower limit switch Feed StopElectrical Safety Instructions Wiring220 VAC Wiring OverviewControl Box Wiring Diagram Coolant pump motor Components Wiring DiagramControl Box Electrical Components Control panel wiringSee Figures HydraulicsSolenoids Hydraulic ComponentsParts Description Main Parts ListRoller Stand Parts Breakdown & List Breakdown BaseBase Breakdown Labels Breakdown and List 22!.49 #!2$ 99.$5342!, .# 0//88 %,,.!- 7!  Warranty and Returns #ALL 4ODAYD&ORO! &2%%
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