Clarke CBS-12WB Owner'S Manual Download Page 11

4.  Trouble Shooting Guide

Problem

Probable Cause                            Solution

Excessive Blade    1  Material loose in vise

1 Clamp work securely

2 Teeth too course for

2 Check Machinist Handbook

material.                                          for  recommended 

blade  type.

3 Incorrect blade tension

3 Adjust to where blade just

does not slip on wheel.

4  Teeth  in  contact  with  work     

4  Place  blade  in  contact  with

before  saw  is  started.

work  after  motor  is  started.

5 Blade rubs on wheel flange.

5 Adjust wheel alignment

6 Misaligned guides

6 Adjust

7 Blade too thick for wheel

7 Use thinner blade

8 Cracking at weld

8 Make longer annealing cycle.

Premature

1  Teeth too course                       1  Use finer tooth blade

Blade

2 Inadequate feed pressure         2 Decrease spring tension on

side of saw

3 Hard spots or scale in/on         3 Reduce speed, increase feed

material.

pressure (Scale). Increase feed

pressure (Hard Spots).

4 Work hardening of material    4 Increase feed pressure by

(especially stainless steel)

reducing spring tension.

5 Blade installed backwards       5 Remove blade, twist inside out

and reinstall blade.

6 Insufficient blade tension        6 Increase tension to proper level.

Bad Cuts

I Blade is too coarse                   1  Replace with finer blade.

2 Work not square

2 Adjust vise to be square with

blade.  Always  clamp  work 

tightly  in  vise.

3 Feed pressure too great

3 Reduce pressure by increasing

spring tension       side of saw.

Problem

Probable  Cause                                Solution

Bad

5 Guide bearings not adjusted     

5  Adjust guide bearings to .002

Cuts                          properly.                                          greater than max. thickness,

including weld, of the saw.

6 Inadequate blade tension

6 Increase blade tension a little

at  a  time.

7 Blade guides spaced out too     

7 Move guides as close to work as

much.

possible.

8 Dull Blade

8 Replace blade

9 Blade guide assembly loose      

9 Tighten

10 Blade guide bearing

10 Tighten

assembly loose

11 Blade tracks too far away        

11 Retract blade according to

from wheel flanges

operating instructions.

Blade is

1  Cut is binding blade                   1  Decrease feed pressure

Twisting

2 Too much blade tension             2 Decrease blade tension

Unusual Wear

1  Blade guides worn                      1   Replace

on Side/Back

2 Blade guide bearing

2    Tighten

of Blade

bracket is loose

Teeth Ripping     1  Tooth too coarse for work

1  Use finer tooth blade

from Blade          2 Too heavy feed; too slow

2 Increase feed pressure and/or

feed

speed

3 Vibrating work piece

3 Clamp work securely

4 Gullets  loading

4 Use coarse tooth blade or

brush to remove chips.

Motor Running    1  Blade tension too high

1   Reduce tension on blade

Too Hot              

2 Drive belt tension too high     

2 Reduce tension on drive belt

3 Blade is too coarse for

3 Use finer blade

work  (Pipes  especially)

4 Blade is too fine for work       

4 Use coarser blade 

(Heavier, soft material)

5 Gears not aligned properly  

5 Adjust gears so that worm is in

center of gear

6 Gears need lubrication

6 Check oil bath

7  Idler wheel needs

7 Oil bearing/shaft on idler

lubrication

wheel

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Summary of Contents for CBS-12WB

Page 1: ...Clarke WOOD CUTTING BANDSAW OWNERS MANUAL BEFORE USING BE SURE TO REA D THIS MANUAL 12 MODEL CBS 12WB PART NO 6460008...

Page 2: ...ngthe Blade 5 Tensioningthe Blade 7 Trackingthe Blade 8 Adjustingthe TableSquareto Blade AdjustingUpperBladeGuide Assembly 9 AdjustingUpperBladeGuides AdjustingUpperThrustBearing 10 AdjustingLowerBlad...

Page 3: ...over knobs 3 Blade Guides Supports the blade and keeps it from twisting during operation An adjustment is necessary when blades are changed or replaced 4 Tension lock knob Holds position of the upper...

Page 4: ...sher and wing nut from the table See Assembly Adjusting the Table Replace these parts after the blade is installed tensioned and tracked 5 Loosen the two screws in the front of the upper blade guide a...

Page 5: ...de s life but ensure that the tension lock knob is still fix on the band saw 7 Loosen the three 3 cover knobs by turning counterclockwise and remove cover NOTE Replace the bandsaw cover after blade is...

Page 6: ...tighten lock knobs 2 Adjust zero stop set screw using hex wrench 3MM until set screw just touches frame Check squareness of blade to table Make re adjustments if necessary Set bevel indicator to line...

Page 7: ...lace the blade guard on the upper assembly and tighten screws 2 Locate the table insert and place it in the opening in the table Aiiyn slot in the insert with the slot in the table 3 Locate a 1 4 20 x...

Page 8: ...work area well lighted 5 KEEP CHILDREN AWAY All visitors should be kept safe distance from work area 6 MAKE WORKSHOP CHILD PROOF with padlocks master switches or by removing starter keys 7 DON T FORCE...

Page 9: ...push stick or piece of scrap wood to do the pushing and guiding when sawing small pieces which require the fingers to be close to the saw 4 Stop the machine before removing scrap pieces from the table...

Page 10: ...marked letter N or coloured Black 16 Basic Operation A band saw is basically a curve cutting machine It is also used for straight line cutting operations such as cross cutting ripping mitering beveli...

Page 11: ...of saw Problem Probable Cause Solution Bad 5 Guide bearings not adjusted 5 Adjust guide bearings to 002 Cuts properly greater than max thickness including weld of the saw 6 Inadequate blade tension 6...

Page 12: ..._____ 2250 FPM 50 Hz ______________________ Capacity 12 THROAT 3mm 10 THROAT 5Omm ___________ 3 3 4 96mm THICK x 12 305mm WIDE_____ Table_________ 11 1 2 x 11 292 x 292mm Blade Length____ 56 1 8 1425m...

Page 13: ...038 2 36 Bearing ball L 940ZZ N BM 1 Ref No Description Part No Unit 37 Shaft guide support MB6A 036 1 38 Support upper guide MB6 014E 1 39 Support guide MB6 010E 1 40 Washer 13 64 x 1 2 x3 64 1 41 Gu...

Page 14: ...WE TRUST WILL GIVE YOU LONG AND TROUBLEFREE SERVICE SHOULD YOU EXPERIENCE ANY DIFFICULTY WITH THE ASSEMBLY OR OPERATION OF THIS PRODUCT PLEASE CONTACT OUR SERVICE DEPARTMENT AT THE ADDRESS BELOW CUSTO...

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