Maintenance - DeWalt D28720 Original Instructions Manual

When making a miter cut, the vise (f) may not
clamp securely, depending on the thickness of the
workpiece and the miter angle. Other aids (such as
spring, bar or C-clamps) will be necessary to secure
the workpiece to the fence when making these cuts.
TO CHANGE SPACING BETWEEN THE FENCE AND VISE
Using the wrench provided, loosen and remove
the two fence bolts (p). Adjust the fence (e) to
desired locations. Insert both fence bolts in provided
locations. Securely tighten both fence bolts before
use.
Removal and Installation of Wheels
(fi g. 1, 7, 8)
WARNING: Turn off and unplug the
tool before making any adjustments
or removing or installing
attachments or accessories. Be
sure the trigger switch is in the OFF
position. Do not make any adjustment
while the wheel is in motion. Do not
make any adjustment while chop saw is
plugged into power supply.
1. Push in wheel lock lever (l) and rotate wheel
(j) by hand until wheel lock lever engages slot
in inside flange (r) to lock wheel. Loosen the
bolt (s) counterclockwise in the center of the
abrasive wheel with the included flat wrench (g).
Bolt has right-hand thread.
2. Remove the bolt (s), washer (t), outside flange
(u) and old wheel (j).
3. Make sure flange surfaces are clean and flat.
Install the new abrasive wheel by reversing the
above steps.
4. Do not overtighten bolt.
WARNING: Check the work surface
that the chop saw rests on when
replacing with a new abrasive wheel. It
is possible that the wheel may contact
ANY ITEMS OR STRUCTURE THAT
EXTENDS ABOVE work surface (under
the base) when the arm is fully lowered.
Operation Tips for More Accurate
Cuts
• Allow the wheel to do the cutting. Excessive
force will cause the wheel to glaze reducing
cutting efficiency and/or to deflect causing
inaccurate cuts.
• Properly adjust fence angle.
• Make sure material is laying flat across base.
• Properly clamp material to avoid movement and
vibration.

MAINTENANCE

Your D WALT power tool has been designed to
E
operate over a long period of time with a minimum
of maintenance. Continuous satisfactory operation
depends upon proper tool care and regular cleaning.
WARNING: To reduce the risk of
injury, turn unit off and disconnect
tool from power source before
installing and removing accessories,
before making any adjustments or
removing/installing attachments or
accessories. Be sure the trigger switch
is in the OFF position. An accidental
start-up can cause injury.
Motor Brush Inspection and
Replacement (fi g. 9)
Brushes should be regularly inspected for wear. To
inspect brushes, remove the two end cap screws
(v) and remove the end cap (w). Remove brush cap
(y). Brushes (x) should slide freely in brush box. If
brushes are worn down to 8 mm (0.3")as shown in
Figure 9, they should be replaced.
To reinstall, push new brush back into brush box. If
replacing existing brush, maintain same orientation
as when removed. Replace the brush cap (Do not
overtighten). Replace end cap and two screws.
Tighten securely.
Lubrication
Your power tool requires no additional lubrication.
Cleaning
WARNING: Blow dirt and dust out of
the main housing with dry air as often as
dirt is seen collecting in and around the
air vents. Wear approved eye protection
and approved dust mask when
performing this procedure.
WARNING: Never use solvents or
other harsh chemicals for cleaning the
non-metallic parts of the tool. These
chemicals may weaken the materials
used in these parts. Use a cloth
EN GL IS H
9