SERVICE
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| M1113 18" Wood/Metal Bandsaw | |
Wheel Alignment |
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When wheels are aligned, or coplanar, the bandsaw cuts |
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| Parallel, Not |
straighter, with much less vibration, heat, and blade wear |
| Coplanar | |
| Coplanar | ||
because the blade is automatically balanced on the wheel. |
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See Figure 55 to better understand coplanarity. |
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If your bandsaw develops tracking problems that can't be | Gauge |
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fixed by adjusting the upper wheel tracking knobs, then |
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check the wheel alignment before taking any other steps. |
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| Coplanarity | Coplanarity Gauge |
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Verifying Upper/Lower Wheels are Coplanar | Contacts Top |
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| Both Wheels |
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| And Bottom of |
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1. DISCONNECT BANDSAW FROM POWER! |
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2. With the blade on and properly tensioned, hold |
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a straightedge or a |
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(Figure 55) close to the center of both wheels. Make |
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sure the straightedge or gauge fully extends across |
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the wheels as shown in Figure 55. |
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— If the wheels are coplanar, the straightedge will |
| Not Parallel | Adjust |
| Not Coplanar | Tracking Knob | |
evenly touch the top and bottom of both wheels. |
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— If the wheels are not coplanar, place the straight- |
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edge on the lower wheel first (ensuring that it |
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touches both the top and bottom rim), then adjust |
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the upper wheel tracking knob to make the upper |
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wheel parallel with the lower wheel. |
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— If the straightedge does not touch both wheels |
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evenly, the upper wheel needs to be shimmed or |
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the lower wheel needs to be adjusted. |
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Shimming Upper Wheel |
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1. DISCONNECT BANDSAW FROM POWER! | Figure 55. Coplanar diagram. | ||
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2. Make sure the top wheel is adjusted parallel with |
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the bottom wheel. |
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3.With the straightedge touching both points of the wheel that does not need to be adjusted, measure the distance away from the incorrect wheel with a fine ruler (see Figure 56).
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, and the | Figure 56. Measuring wheel difference. |
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securing nut.
