Commutator Brush Inspection; Additional Servicing; Tracker Kit - Jet JWDS-1632-M Mode D'emploi

Step 1: Check conveyor drive roller and driven roller to
make sure they are parallel to surface of conveyor
table. To do this, first center conveyor belt on the
conveyor table. Then lay a straight-edge on the
exposed edge of conveyor table on left (outboard)
side, extending it over the roller. Note distance
between roller and straightedge.
Step 2: Now repeat Step 1 on right (inboard) side of
conveyor. Compare the measurements from side to
side. If they are not equal, loosen one of the brackets
that hold the roller in place. Tip this bracket until
distance between roller and straight-edge are equal
from side to side, then tighten bracket.

10.4 Commutator brush inspection

To maintain motor efficiency, inspect the two carbon
brushes every two months, or more frequently if
sander is heavily used. Stalling or loss of power may be
a symptom of worn carbon brushes. If one brush is
worn out, replace both at the same time.
Continued use of damaged or
worn brushes may result in damage to motor
armature.
1. Unplug saw from power source.
2. Unscrew and remove cap with flat blade
screwdriver. See Figure 10-4.
3. Gently pry up an edge of the brass clip, until the
spring causes it to disengage from hole. (Notice
orientation of brush as you remove it; it should be
inserted in the same manner; curvature of brush
will match curvature of motor.) Pull out brush and
inspect. Brush should be replaced if any of the
following are discovered:

Brush has worn to about 13mm long.

Signs of crumbling, burning or breaking.

11.0 Tracker kit

Stock No.: PM2244-213
Trackers dramatically reduce tracking adjustments of
conveyor belts. They are already installed on your
sander. The following information is for resetting or
replacing your trackers, should that become
necessary.
1. Disconnect power to sander.
2. Raise drum as high as it will go.
3. Turn both conveyor take-up screws to relieve
conveyor belt tension and slide driven roller fully
inward.

End of brush is rough or pitted.

Abnormal coloration of spring

Broken lead in spring

Collapsed spring
4. Install new brush (or reinstall current brush) and
gently press it all the way into hole until the brass
clip is secured.
5. Install cap.
6. Repeat for other brush.
NOTE: It is recommended that sander be run without
load for several minutes to seat new brushes.

10.5 Additional servicing

Any additional servicing should be performed by an
authorized service technic
4. Remove the four bolts holding conveyor table to
sander base.
5. Lift conveyor table and slide it out of sander. Turn
conveyor table upside down. Be careful not to
damage conveyor belt.
6. On the underside of the conveyor table, there are
U-channels welded to the table. The Tracker is
positioned on the inside of the first U-channel on
the infeed side of sander (Figure 11-1). The back
of tracker is magnetized and will stick to side wall
of conveyor table. Do not install tracker if edge of
conveyor belt is damaged or torn.
7. With first tracker installed, slide conveyor belt
into bottom slot of tracker. Note: When installed
17
Figure 10-4