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Model W1849 (For Machines Mfd. Since 11/16)
Adjusting.Blade.Guide.
Roller.Bearings
The optional blade guide roller bearings can be adjusted
left-to-right, as well as front-to-back, relative to the
blade. Properly adjusted blade guide bearings provide
side-to-side support, from just behind the gullets to the
back of the blade, to help keep the blade straight while
cutting.
There are blade guide bearings on the optional upper and
lower blade guide assemblies. Both adjust in the same
manner. The following instructions refer to the upper
guide bearings.
Important: Make sure the blade is tracking and
tensioned correctly before performing this procedure (see
Tensioning Blade on Page 30).
Tool Needed
Hex Wrench 5mm ...............................................1
To adjust blade guides do these steps:
1. DISCONNECT MACHINE FROM POWER!
2. Loosen guide block adjustment cap screw shown in
Figure 53, then position guide bearings just behind
blade gullets, as illustrated in Figure 54. Retighten
cap screw to secure setting.
Note: The guide bearings should be positioned
behind the blade gullets a distance equal to that of
the support bearing behind the blade (see Figure 46
on Page 33).
Note: With wider blades, it may not be possible
to bring the guide bearings just behind the blade
gullets. Position them as far forward as possible
without allowing the guide bearing housing to touch
the back of the blade.
Whenever changing blade or adjusting
blade tension or tracking, the support
and guide bearings must be re-adjusted
before resuming operation to ensure
proper blade support.
Guide
Bearings
Qty
Figure 53. Upper guide bearing
components (guide post cover removed for
Approximately
0.016"
Blade
Gullets
Blade
Guide
Bearing
Figure 54. Blade guide bearing positioned
just behind blade gullets.
-37-
Guide Block
Adjustment
Cap Screw
Guide
Block
clarity).
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