Woodstock W1770 manual Shimming Upper Wheel, Gauge

Page 55

W1770 21" Bandsaw w/Foot Brake

—If the wheels are coplanar (Figure 75, A), the straightedge will evenly touch the top and bottom of both wheels.

—If the wheels are not coplanar (Figure 75, B), place the straightedge on the lower wheel first (ensuring that it touches both the top and bottom rim), then adjust the upper wheel tracking knob to make the upper wheel coplanar and parallel with the lower wheel.

—If the straightedge does not touch both wheels evenly, the lower wheel needs to be adjusted (Figure 75, C) or the upper wheel needs to be shimmed (Figure 75, D).

Shimming Upper Wheel

1.DISCONNECT BANDSAW FROM POWER!

2.Make sure the top wheel is adjusted parallel with the bottom wheel.

3.With a straightedge touching both points of the wheel that does not need to be adjusted, measure the distance away from the wheel that is out of adjustment (see Figure 76).

4.Remove the blade from the saw, then remove the wheel that needs to be shimmed.

5.Determine how many shim washers you need to com- pensate for the distance measured in Step 3 and place them on the wheel shaft.

6.Replace the wheel, the original washers, the secur- ing screw, and the blade.

A

Coplanar

	Gauge
	Gauge	Gauge
	Coplanarity	Gauge
	Coplanarity	Contacts Top
		Contacts Top
		And Bottom of
		Both Wheels

C

Not Parallel

Not Coplanar

Gauge Contacts

Wheels Unvenly

Solution:

Adjust

Lower

Wheel

Hub

B

Not Coplanar

Solution:

Adjust

Tracking

Knob

Gauge Only Contacts Bottom Wheel. Top Wheel Needs to Be Tilted.

D

Parallel, Not

Coplanar

Solution:

Shim Upper

Wheel Out

Gauge Only

Contacts Bottom

Wheel

7.Tighten the blade, then check the wheels with the coplanarity gauge. (Wheel coplanarity changes as the blade is tightened, so it is best to check the wheel alignment when the blade is tensioned as it would be for normal operations.)

8.When the wheels are coplanar, place a mark on each wheel where you held the straightedge. This assures repeated accuracy every time you adjust your wheels.

Note: When wheels are properly coplanar, the blade may not be centered on the crown of the wheel, but it will be balanced.

-53-

Figure 75. Coplanar diagram.

Difference	SERVICE
Difference
Between Wheels
Wheel Out of
Adjustment

Figure 76. Determining distance needed to

shim upper wheel.

Image 55

Contents OWNERS MANUAL Page Contents Functional Overview Woodstock Technical SupportMachine Specifications W1770 21 Bandsaw w/Foot Brake Controls and Features Safety Safety Always Lock Mobile Bases if Used Before Operating Machinery Additional Safety for Bandsaws Use push sticks whenever possible Use push blocks when necessary220V Operation Electrical SpecificationsExtension Cords Unpacking Items Needed for SetupDescription Qty Box Inventory Figure Qty InventoryHardware and Tools Cleaning Machine Machine PlacementLifting the bandsaw 2x4 Lifting & MovingBolting to Concrete Floors Mounting to Shop FloorFence To install the fence, do these stepsGuide Post Handwheel To center track the blade, do these steps Blade TrackingChanges in the blade tension may change the blade tracking To set the positive stop, do these steps Positive StopTo connect the dust collection hoses, do these steps Dust CollectionTo test run the machine, do these steps Test RunResetting the switch Tensioning Blade Adjusting Blade Guide Bearings onTo tension the bandsaw blade, do these steps To adjust the upper blade guides, do these steps Adjusting Blade Guide BearingsTo adjust the upper support bearing, do these steps Adjusting Support BearingsBlade aligned 0.016 away from Bearing edge Lower support bearing controls To adjust the lower support bearing, do these stepsCap screws securing table to Trunnion Aligning TableCap screws securing rail to Aligning FenceTo calibrate the miter gauge, do these steps Calibrating Fence PointerCalibrating Miter Gauge To calibrate the pointer, do these stepsEnough to slide on the resaw fence To install the resaw fence, do these stepsBasic Controls GeneralControl Panel Rear Controls Figure Front Controls FigureCutting wood with minor Warping Workpiece InspectionBasic Cutting Tips Cutting OverviewBandsaw is capable of performing the following cuts Guide Post Foot BrakeAligning Table on Page 27 and Aligning Fence on Fine Tune TrackingBlade Lead Correcting Blade LeadTo shift the table, do these steps To make a rip cut, do these steps Table TiltRip Cutting To tilt the table, do these stepsTo resaw a workpiece, do these steps CrosscuttingResawing To make a 90˚ crosscut, do these stepsStacked Cuts Cutting CurvesTo complete a stacked cut, do these steps Blade Width Blade LengthTooth Style Most common causes of blade breakage are Tooth PitchBlade Care Blade BreakageTo remove a blade, do these steps Blade ChangesTo replace a blade, do these steps Lubrication CleaningTable & Base BrushesBlade Guide Rack and Pinion Tension Adjustment AssemblyLubricant Frequency Quantity Trunnion Table Tilt Rack and Pinion AssemblyTo lubricate the trunnion, do these steps Checking V-Belts Checking and Tensioning BeltsTools Needed Replacing V-Belts Tensioning V-BeltsFollow Steps 1-2 in Checking V-Belts on To adjust the tension lever, do these steps Adjusting Tension LeverTo adjust the brushes, do these steps Adjusting Wheel Blade BrushesFollow Steps 1-4 in Replacing V-Belts on Replacing Brake ShoeComponents and Hardware Needed To replace the brake shoeChecking Coplanarity Aligning WheelsGauge Shimming Upper WheelTo adjust the lower wheel, do these steps Adjusting Lower WheelElectrical Components Power supply terminal boxSee , Wiring DiagramSee Figure Motor & Electrical TroubleshootingCutting Tips on Machine OperationsLabels & Cosmetic Parts PartsBlade Guides-Cover Breakdown Parts Guide Post-Table Tilt BreakdownTable-Trunnion Breakdown Body Breakdown Capacitor Cover Body Parts ListMotor Cord 12AWG X 3C Resaw Fence Breakdown Comments Warranty RegistrationWoodstock international inc. p.o. box Bellingham, wa Warranty