-26-
Model W1878 (For Machines Mfd. Since 4/21)
SE
TU
P
Adjusting.Blade.Support.
Bearings
The support bearings are positioned behind the blade
near the blade guides and prevent the blade from pushing
backward during cutting operations. Proper adjustment
of the support bearings helps you make accurate cuts and
prevents the blade teeth from coming in contact with
the blade guides while cutting. If this happens the blade
"tooth set" can be ruined, which will greatly reduce the
blade's ability to make good cuts.
There are support bearings on the upper and lower blade
guide assemblies. Both adjust in the same manner. The
following instructions refer to the upper support bearings.
To access the lower support bearing, you must open the
lower wheel cover (see
Page.5
for reference).
IMPORTANT:
To ensure best results while cutting, make
sure the blade is tracking and tensioned correctly before
performing this procedure.
Tools.Needed.
Qty
Hex Wrench 4mm ...............................................1
Feeler Gauge 0.016" (or Dollar Bill) .........................1
To.adjust.support.bearings,.do.these.steps:
1..
DISCONNECT MACHINE FROM POWER!
2.
Open blade cover and loosen support bearing
adjustment screw (see
Figure
24
).
Figure.24.
Upper support bearing assembly
and controls.
Support Bearing
Blade
Cover
Support Bearing
Adjustment Screw
3.
Position support bearing approximately 0.016" away
from the back of the blade, as illustrated in
Figure.
25
. This can be measured with a feeler gauge or a
dollar bill.
0.016''
Figure.25.
Bearing positioned 0.016" away
from back of blade.
.
Tip:.
To quickly measure this setting, fold a crisp
dollar bill in half twice (when folded tightly, four
thicknesses of a dollar bill is approximately 0.016").
Place the folded dollar bill between the support
bearing and the blade, as shown in
Figure 26
.
4.
Tighten adjustment cap screw to lock support
bearing in place.
Note:
When securing adjustment of lower support
bearing, make sure it is parallel to blade.
Figure.26.
Dollar bill folded twice to make
a quick 0.016" gauge.
Summary of Contents for W1878
Page 60: ......
