WEN 3912 10 inch band saw - Manual (Page 14)

Assembly and adjustments (continued)
Note: The blade teeth should face the operator and should point down towards the table.
9. Position the blade to track in the middle of the
rubber tires on the wheels (M, R).
10. Engage tension on the blade by turning the blade
tension knob (Figure 6).
11. Tighten the tracking knob (Figure7).
12. Replace rail guide (Figure 4).
Before operating the saw, check that the blade is
tracking and has proper tension as described in
“Adjusting Blade Tension” and “Adjusting Blade
Tracking”
Adjusting Blade Tension (Figure 6)
1. Disconnect machine from power source. The blade tension knob (Figure 6) is used to adjust
blade tension.
Note: All bearings on upper and lower guides must be clear of blade (see Blade Guide and
Guide Bearing adjustments on following page).
2. Apply just enough tension to take the slack out of the blade.
3. Turn one wheel (R, Figure 6) a few times to allow the blade to position itself in the center
of the tire.
Note: If blade does not center see Adjusting Blade Tracking section.
Note: A meter is recommended to precisely set tension for the size of blade used.
Note: As you become more experienced with the saw, you may find it necessary to change the
blade tension from the initial setting. Changes in blade width and the type of material being cut
will have an effect on blade tension.
Note: Keep in mind that too little or too much blade tension can cause blade breakage.
Adjusting Blade Tracking (Figure 7)
WARNING:Disconnect machine from the power source! Never adjust blade tracking
with the machine running! Failure to comply may cause serious injury!
Lock Knob
Tracking knob Figure 7
Tracking refers to how the blade is situated upon the wheels while in motion. The blade should
track in the center of both wheels.
The blade must be slightly tensioned (see previous section) before adjusting blade tracking.
Make sure blade guides and bearings (N&Q, Figure 6) do not interfere with the blade. If blade
tracking is required, blade guide adjustment is described on the following page.
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