Grizzly Tools G0513 Manual Download Page 8

Page 8

G0513 Series Bandsaws

-33-

Tensioning Blade

A  properly  tensioned  blade  is  essential  for  mak-
ing  accurate  cuts,  maximizing  the  life  of  the 
blade,  and  making  other  bandsaw  adjustments. 
However, it will not compensate for cutting prob-
lems caused by too rapid of a feed rate, hardness 
variations  between  workpieces,  and  improper 
blade selection.

Improper blade tension is unsafe, produces 

inaccurate  and  inconsistent  results,  and 

introduces  unnecessary  wear  on  bandsaw 

components.  Over-tensioning  the  blade 

increases the chance of the blade breaking 

or  wheel  misalignment.  Under-tensioned 

blades  wander  excessively  while  cutting 

and  will  not  track  properly  during  opera-

tion.

Tensioning the blade according to the blade 

tension  scale  before  the  Test  Run  section 

gave an approximate tension for completing 

the  bandsaw  setup.  The  following  proce-

dures tension the blade for operation.

Blade tensioning method is a matter of preference. 
The flutter method and the deflection method are 
described  below.  Either  method  safely  tensions 
the  blade.  Experience  and  personal  preference 
will  help  you  decide  which  method  your  prefer. 
Optimal  cutting  results  for  any  workpiece  results 
from  a  combination  of  correct  blade  selection, 
proper  blade  tension,  and  a  light  and  even  feed 
rate.

Flutter Method

1.

  DISCONNECT BANDSAW FROM POWER!

2.

  Make sure the blade is properly center track-

ing as instructed in the 

Initial Blade Tracking

 

on 

Page 28

.

3.

  Raise the guide post all the way, and move 

the upper and lower blade guides away from 
the blade.

 

4.

  Engage the blade tension quick-release lever 

to apply tension to the blade (see 

Figure 43

).

7.

  Slowly  increase  the  tension  until  the  blade 

stops  fluttering,  then  turn  the  blade  tension 
adjustment  knob  an  additional 

1

8

  to 

1

4

  of  a 

turn.

8.

  Turn  the  bandsaw 

OFF

  and  disconnect  it 

from power.

9.

  Note what the tension gauge reads. Use that 

as a guide for tensioning that specific blade 
in the future.

10.

  Re-adjust  blade  guides  as  described  in 

Adjusting Blade Guides 

beginning on 

Page 

36 

for your model bandsaw.

Figure 44.

 Blade tension handwheel.

Blade Tension

Handwheel

5.

  Connect the bandsaw to power, and turn the 

bandsaw 

ON

.

6.

  Using  the  blade  tension  handwheel 

(

Figure  44

),  slowly  decrease  blade  tension 

until the blade starts to flutter.

Figure 43.

 Blade tension quick-release lever

(G0513X2 shown).

Blade Tension

Quick-release

Lever

Summary of Contents for G0513

Page 1: ... be close to your piece Keep hands and fingers away from blade use push sticks and or T square pusher Be very careful while resawing and use a push stick The off button has to be twisted to reset itself Please read the next 14 pages of this guide to gain an understanding of the operation of the Bandsaw itself The full manual is available online and a paper copy is here in the shop ...

Page 2: ...ature a power switch that can be disabled with a key to prevent unauthorized start ing of the machine see Figure 2 To disable the switch turn the key to 0 and remove it To enable the switch insert the key and turn it to 1 Front Controls A Blade Tension Scale Allows for easy moni toring of blade tension in arbitrary numbers 1 8 B Blade Tension Handwheel Tensions blade in gradual increments C Blade ...

Page 3: ...e Tilt Controls Adjusts table tilt and locks the table in place J Magnetic Switch Provides thermal overload protection for the motor K Lower Wheel Adjustment Hub Used when adjusting coplanarity of the wheels L Guide Post Handwheel and Lock Knob Quickly moves the upper guide post to the desired height locks setting Figure 4 Rear controls G0513X2B shown G H F I J K F L To reduce your risk of serious...

Page 4: ... moving 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 at the rate for which it was designed NEVER STAND ON MACHINE Serious injury may occur if machine is tipped or if the cutting tool is unintentionally contacted STABLE MACHINE Unexpected movement dur i...

Page 5: ...oss of control If necessary use a jig or other work holding device WORKPIECE MATERIAL This machine is intended for cutting natural and man made wood products and laminate covered wood products This machine is NOT designed to cut metal glass stone tile etc HAND PLACEMENT Placing hands or fingers in line with blade during operation may result in serious injury if hands slip or workpiece moves unexpe...

Page 6: ...ted the Initial Blade Tracking procedure on Page 28 before continuing 2 Make sure you have read the safety instruc tions at the beginning of the manual and that the machine is setup properly 3 Make sure all tools and objects used during setup are cleared away from the machine 4 Connect the machine to the power source 5 Test the operation of the machine to verify that it starts and operates correct...

Page 7: ...s Call Tech Support for help e Push the OFF button in then twist it clockwise so it pops out When the OFF button pops out the switch is reset and ready for operation see Figure 42 OFF Button Figure 42 Resetting the OFF button f Turn the key in the power switch to 0 g Try to turn the machine ON The bandsaw should not start If the bandsaw starts immediately disconnect the machine from power The swit...

Page 8: ...ce will help you decide which method your prefer Optimal cutting results for any workpiece results from a combination of correct blade selection proper blade tension and a light and even feed rate Flutter Method 1 DISCONNECT BANDSAW FROM POWER 2 Make sure the blade is properly center track ing as instructed in the Initial Blade Tracking on Page 28 3 Raise the guide post all the way and move the up...

Page 9: ...elease lever to apply tension to the blade Whenever changing a blade or adjusting tension and tracking the upper and lower blade support bearings and blade guides must be properly adjusted before perform ing cutting operations 5 Using moderate pressure push the center of the blade sideways If the blade deflects approximately 1 4 it is properly tensioned Proceed to Step 6 If the blade deflects less...

Page 10: ...hind the teeth gullets which is typically about 0 016 see Figure 45 Ve Ve Hjeedgi 7ZVg c 7aVYZ j YZ Figure 45 Distance settings of upper support bearings and blade guides Tools Needed Qty Hex Wrench 5mm 1 Feeler Gauge 0 016 1 Each Crisp Dollar Bill Optional 1 Tip You can use a crisp dollar bill in place of the feeler gauge for the following procedures The thickness of the bill when folded in half ...

Page 11: ...adjust the lower support bearing approximately 0 016 behind the blade then re tighten the shaft cap screw to secure the setting Adjusting Blade Guides The blade guides provide side to side support to keep the blade straight while cutting These guides are adjustable in two ways forward and back and side to side To keep the blade straight while cutting the blade guides must be as close to the sides ...

Page 12: ...ER 2 Loosen the thumb screws shown in Figure 48 7aVYZ j YZ Iddi jaaZi 7aVYZ Ve Hjeedgi 7ZVg c 7aVYZ Ve Ve Hjeedgi 7ZVg c 7aVYZ j YZh Ve 7aVYZ Figure 49 Correct gap between guide guides and blade 3 By hand adjust the distance of the guides approximately 0 004 from the sides of the blades see Figure 49 then re tighten the thumb screws to secure the setting Figure 48 Upper blade guides side to side c...

Page 13: ...e cut or the blade teeth will be damaged Adjusting Blade Guide Bearings G0513X2 G0513X2B G0513X2BF G0513X2F Tools Needed Qty Hex Wrench 5mm 1 Feeler Gauge 0 004 0 016 1 Each Crisp Dollar Bill Optional 1 Tip You can use a crisp dollar bill in place of the feeler gauge The thickness of the bill is approxi mately 0 004 and when folded in half twice is approximately 0 016 Note The upper and lower guid...

Page 14: ...all the way through the workpiece Figure 77 shows a typical cross cutting operation Figure 77 Example of crosscutting Resawing see Figure 78 for an example is the process of cutting a board into two or more thinner boards The maximum board width that can be resawn is limited by the maximum cutting height of the bandsaw Blade selection is one of the most important con siderations when resawing Gene...

Page 15: ...Curves When cutting curves simultaneously feed and turn the stock carefully so that the blade follows the layout line without twisting If a curve is so abrupt that it is necessary to repeatedly back up and cut a new kerf use either a narrower blade or a blade with more TPI teeth per inch or make more relief cuts Always make short cuts first then proceed to the longer cuts Relief cuts will also red...

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