Jet Tools J-7040 - Manual (Page 17)

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12.10 Replacing carbide blade guide
Refer to Figure 17.
1. Remove the cap screw and remove the
carbide guide. Discard the carbide guide.
2. Install the replacement carbide guide on the
guide bearing support. Install the cap screw.
Set the guide so it just contacts the side of the
saw blade.
3. Using a machinist's square, check squareness
of the blade to the table.
Figure 17: Carbide blade guides and guide
bearings
12.11 Replacing guide bearings
Referring to Figure 17, remove the cap screw from
the bearing being replaced. Separate the bushing
and cap screw from the bearing. Discard the
bearing.
NOTE: There is a light press fit between the
bearing and the bushing.
1. Install bushing in replacement bearing. Install
cap screw through bushing and into guide
support.
2. If the bearing being replaced is on an eccentric
bushing, install the bearing on the operator
side of the blade.
3. Turn the eccentric bushing in the guide
support until the bearing contacts the blade.
12.12 Replacing blade edge bearings
1. Remove the capscrew from the blade edge
bearing being replaced and discard the
bearing. Be careful not to lose the spring
washer that separates the bearing from the
floating block (see Figure 18).
2. Insert the capscrew into the new bearing.
Replace the spring washer onto the capscrew
and re-install into the floating block.
3. If re-adjustment is necessary, loosen the pivot
capscrew and move the floating block so that
the blade edge is close to the guide support,
but cannot touch the bottom surface of it when
the saw blade is cutting a workpiece.
Figure 18: Blade edge bearing replacement
12.13 Replacing wire brush
1. Loosen four knobs securing the blade cover.
Lift the cover and swing it backward.
2. Remove the attaching screw, spring washer
and washer. Remove and discard the brush
(see Figure 19).
3. Install replacement brush and secure with
screw, spring washer and washer.
4. Close the blade cover and secure with four
knobs.
Figure 19: Wire brush