Southbend SB1040, SB1041 owner manual Blade Changes, Blade Tension, To replace the blade

Page 29

For Machines Mfg. Since 8/09

O P E R A T I O N

Model SB1040/SB1041

Blade Changes

!	Always disconnect power
	to the machine when
	changing blades. Failure
	to do this may result in
	serious personal injury.

All saw blades are dangerous and may cause personal injury. To reduce the risk of being injured, wear leather gloves when handling saw blades.

To replace the blade:

1.DISCONNECT BANDSAW FROM POWER!

2.Open the upper and lower wheel doors, release tension on the blade, and move the blade guides away from the blade.

3.Put on heavy gloves, then slide the blade off the upper and lower wheels, around the blade post, and through the table slit.

4.Install a new blade in reverse order.

5.Position the back edge of the blade so that it is next to, but not against, the flange of the top wheel (see Figure 18).

Note: Excessive blade contact with the wheel flange during operation could lead to blade and wheel damage.

6.Re-tension the blade (refer to the following Blade Tensioning section).

7.Rotate the top wheel clockwise 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 and away from the flange, the wheel alignment may need to be adjusted. Refer to Blade Tracking on Page 41 for detailed instructions.

8.Adjust the upper and lower blade guides (refer to Adjusting Blade Guides on Page 30).

9.Close and secure the upper and lower wheel doors.

Blade Tension

Proper blade tension reduces the risk of blade breakage and improves cutting performance.

To prolong blade life, release the tension on the blade if the machine will be idle for an extended period of time.

Wheel	!
Wheel
Flange

Blade

Figure 18. Back edge of blade next to wheel flange.

To correctly tension the blade:

1.DISCONNECT BANDSAW FROM POWER!

2.Turn the blade tension handwheel until you feel an moderate amount of resistance and the handwheel wants to stop. Then turn the handwheel an additional 1⁄2 turn.

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Contents Metal Cutting Bandsaw Customer Service UpdatesScope of Manual Manual FeedbackTable of Contents Service Capabilities FeaturesAbout This Machine FPM Identiﬁcation012 3345-4&6 Machine Speciﬁcations@1% !1 +++ 012 34-4&6 5C= Understanding Risks of Machinery Basic Machine SafetyF E T Y Additional Metal Cutting Bandsaw Safety Things Youll Need Preparation OverviewAvailability Power Supply RequirementsFull-Load Current Rating Circuit InformationFor 220V 1-Phase Connection SB1040 For 110V Connection SB1040 PrewiredFor 220V 3-Phase Connection SB1041 SB1041 Circuit RequirementsExtension Cords UnpackingInventory Basic steps for removing rust preventative Cleaning & ProtectingBefore cleaning, gather the following Location Bolting to Concrete Floors Lifting & MovingSecuring to Floor Machine Mounts AssemblyInitial Lubrication Correcting Phase Polarity SB1041 Only Power ConnectionTo correct the polarity of a power source connection 220V Conversion for SB1040To test run your machine Inspections AdjustmentsTest Run Operation Overview Controls Grinder Switch Turns grinder ON/OFFBlade Length Blade SelectionBlade Terminology Blade WidthTooth Type Tooth SetTo select the correct blade pitch Blade Pitch TPIBlade Tension Blade ChangesTo replace the blade To correctly tension the bladeBlade Care & Break-In Blade BreakageBlade Care Blade Break-InChip Inspection Chart Blade Speed ChartTo properly adjust the upper and lower blade guides Adjusting Blade GuidesPositioning Guide Post To properly position the guide postLower blade guides and bracket Blade Welding Tilting TableTo tilt the table left or right To tilt the table forward or backwardAbove 3⁄8 Blade ⁄4-3⁄8 Blade Correct Not Correct Correct Not Correct Cut and reweld To use the circle cutting jig Circle Cutting JigDressing Grinding Wheel Maintenance ScheduleCleaning Upper wheel leadscrew lubrication LubricationDressing Rubber Tires BeltsSprocket Drive Belt Air Pump BeltMachine Storage Blade Tracking To adjust the upper wheel for blade trackingTable Calibration To calibrate the table to zeroTo align the guide post Guide Post AlignmentBevel Gear Backlash To adjust the leadscrew collars to reduce backlashLeadscrew End Play To reduce the bevel gear backlashSymptom Possible Cause Possible Solution TroubleshootingPolarity on TR O U B L E S H O OTI N G Dull blade missing teeth Replace blade Electrical Safety Instructions Wiring Diagram Color KEY Wiring OverviewWELDER’S Lamp Welding Unit SB1040/SB1041 Control Panel/Welding UnitElectrical Panel SB1040 110V Electrical Panel, Motor & CordSB1040 220V Electrical Panel, Motor & Cord SB1041 220V Electrical Panel, Motor & Cord Motor and FPM sensor Terminal Strip Welding Transformer Electrical Component PicturesBottom FrameDescription Bottom Frame Parts ListSB1040 Only DrivetrainMotor Cord SB1041 Drive Train Parts ListTop Frame Top Frame Parts List 302 SB1040/SB1041 Welding Station & Control PanelWelding Station & Control Panel Parts List Digital Tachometer System Terminal Block 4 Post Electrical Cabinet615 618 612 611 619 613 614 621 620 617 616 626 624 622 702 703 Machine LabelsT E S Warranty #JB13203