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11
Blade tension adjustment
Refer to Figure 23:
The blade tension knob (P) is used to adjust blade tension. The quick
tension lever (Q) must be engaged (moved to the left) before making
tension adjustments with knob (P). All bearings on upper and lower
guides must be clear of blade. Disconnect machine from power source.
Apply just enough tension to take slack out of blade. Turn one wheel a
few times to allow blade to position itself in center of tire.
Note: If blade does not center, Adjusting blade tracking.
A gauge (R) directly behind upper wheel indicates approximate tension
according to width of blade. Set blade tension with knob (P) to corre -
spond to blade width as marked on gauge (R):
Note: A tension meter is recommended to precisely set tension for the
size of blade used.
As you become more experienced with the saw, you may find it nec -
essary 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.
Keep in mind that too little or too much blade tension can cause blade
breakage.
Blade tension adjustment
Refer to Figure 23:
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 before adjusting blade tracking. Make sure
blade guides and bearings (M,N, Figure 22) do not interfere with blade.
If blade tracking is required, blade guide adjustment is described in
sect to” Guide bearing adjustment”. Open upper and lower doors. Ro -
tate upper wheel forward by hand, and observe position of blade on
wheel through the window (S, Figure 23). Blade should be in the center
of the wheel. If adjustment is necessary:
Loosen handle (T) and make adjustment with tracking knob (U) while
rotating wheel by hand. Tightening the tracking knob slightly will move
the blade so it tracks towards the rear of machine. Loosening the track -
ing knob slightly will cause the blade to track toward the front of the
machine. After blade is tracking in the center of the wheel, tighten
handle (T).
Upper blade guide positioning
Refer to Figure 24:
The upper blade guide assembly (W) should be adjusted to just above
the material being cut. To adjust:
Loosen lock knob (V) and raise or lower upper blade guide assembly
(W) by turning height adjustment knob (X).
FIG. 23
FIG. 24
FIG. 25 upper blade guides