Powermatic M-1791257 operating instructions Installing/Changing Blades, Blade Tension

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Installing/Changing Blades

Always wear gloves when handling blades. New blades are usually packaged in a coiled position; to prevent injury uncoil them slowly and carefully, while wearing gloves and safety glasses.

1.Disconnect machine from power source.

2.Decrease blade tension by rotating blade tension handwheel (A, Figure 14) according to the arrow direction in Figure 14, until the handwheel stops.

3.Remove the table insert (Figure 13).

4.Remove the set screw at the end of the slot (Figure 13) with 4mm (or 5/32”) hex wrench.

5.Lower the upper blade guide assembly by loosening the knob (B, Figure 14) and rotating the handwheel (C, Figure 14).

6.Open upper and lower front doors.

7.Carefully remove the blade from between upper and lower blade guides. Remove blade from upper and lower wheels.

8.Guide new blade through table slot. Place blade in upper and lower blade guides. NOTE: Make sure blade teeth point down toward table, and toward the front of the saw.

9.Position blade on the middle of the upper and lower wheels.

10.Replace table insert and set screw.

11.Before operating the band saw, the new blade must be tensioned and tracked properly. Find instructions for tensioning and tracking the blade under “Blade Tension” and “Blade Tracking.” The blade guides must also be set properly according to the instructions on pages 18 and 19.

Blade Tension

1.Disconnect machine from power source.

2.Close both upper and lower doors.

3.Rotate blade tension handwheel to set the blade tension, according to the arrow directions in Figure 14.

4.The gauge (D, Figure 14) indicates the approximate tension according to the width of the blade in inches. Initially, set the blade tension to correspond to the width of your blade. As you become familiar with the saw, you may find it necessary to change the blade tension from the initial setting.

Figure 13

Figure 14

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Contents 20and 24 Band Saws Warranty and Service Warranty PeriodTable of Contents Page Page Page Introduction Specifications 2013Features and Terminology Floor DiagramsContents of the Shipping Container UnpackingAssembly Installing Fence and RailsPage Grounding Instructions Dust CollectionVolt, Three Phase Operation Volt, Single Phase OperationExtension cords Converting from 230 Volt to 460 Volt Three Phase Only Three-Phase Test RunTable Tilt AdjustmentsTable Stop Installing/Changing Blades Blade TensionBlade Tracking Upper Blade Guide Assembly Upper Blade Guides and Upper Support BearingLower Blade Guides and Lower Support Bearing Miter Gauge Belt TensionOperating Controls Blade Speed AdjustmentBelt Alignment Operation General ProcedureBrake Pedal Ripping CrosscuttingResawing Blade LeadBlade Selection Pitch WidthShape Set MaterialTire Replacement MaintenanceBand Wheel Replacement Blade Selection Guide For Radius CuttingTroubleshooting Operational Problems Trouble Troubleshooting Mechanical and Electrical Problems Replacement Parts Trouble Probable Cause RemedyParts List Saw Body Assembly 2013 Band Saw Index No. Part No Description Size QtyParts List Saw Body Assembly 2415 Band Saw 2415-102ORNSaw Body Assembly 2013 Parts List Table Assembly 2013 Band Saw Index No. Part No Description Size Qty Parts List Table Assembly 2415 Band Saw Index No. Part No Description Size Qty Table Assembly 2013 Parts List Upper Wheel Base Assembly 2013 Band Saw For 2013-3, serial #01062013090 toParts List Upper Wheel Base Assembly 2415 Band Saw For 2415-3, serial #01062415011 toUpper Wheel Base Assembly 2013 Parts List Lower Wheel Base Assembly 2013 Band Saw ST 18AWG Parts List Lower Wheel Base Assembly 2415 Band Saw 2013-459 Limit Switch Cord not shown Lower Wheel Base Assembly 2013 Parts List Guide Bracket Assembly 2013 Band Saw Index No. Part No Description Size Qty Parts List Guide Bracket Assembly 2415 Band Saw Index No. Part No Description Size Qty Guide Bracket Assembly 2013 Motor Band Saw onlyMagnetic Switch Electrical Connections 230 Volt, 3 Phase Models 2013 Electrical Connections 460 Volt, 3 Phase Models 2013 This page intentionally left blank This page intentionally left blank