Table of Contents
Advertisement
If by any chance the blade does not lie flat against
the fence then return it to the 0° cross-cut position
and repeat the above adjustment procedure (making
blade parallel to arm tracks).
4.3 Checking the
Blade is Perpendicular
to Table
Fig. 14
4.4 Adjusting
Roller Head Bearings
to Arm Tracks.
(iv)
For accurate woodworking, it is also necessary that the
sawblade cuts a precise 90° vertical line when intended to
do so.
To Check
With the arm in the cross-cut position and all
latches/Clamp handles engaged, place a steel square with
one edge on the worktable parallel to the fence (Fig. 14)
and the other edge against the left face of the sawblade
(make sure the square passes between the teeth of the
blade and rests against the inner face). If the blade is not
then completely flat against the square, it follows that it is
also not at right angles (90°) to the worktable.
To Adjust
(i)
Remove bevel pointer disc (A) by removing the two
screws (B) in Fig. 15 and re-engage the bevel latch.
Loosen the two outside alien screws (Fig. 16).
Tilt the motor left or right until the blade is flat against
the square.
Firmly retighten the alien screw(s) L.
NOTE:It may be necessary to loosen the centre alien
screw (M) slightly before the motor will tilt. If
you do so, be sure to secure it again firmly
before replacing the bevel pointer disc.
(v)
Replace the bevel pointer disc.
In most cases the above adjustments will be all that are
necessary to enable accurate sawing with your DeWalt
Radial Arm Saw.
However, in time it is possible that play might develop in
the adjustment of the roller head bearings to the arm
tracks which will cause inaccuracy.
The roller head is suspended by three special bearings
(Fig. 17). Two of these are mounted on straight bearing
shafts (Q) and the third is mounted on an eccentric shaft
(R).
If there is lateral movement between the bearings and the
arm tracks, (and you will be able to feel it, if there is)
proceed as follows:
(i)
Pull the yoke assembly forward to the end of the arm
tracks and lock it in position with the rip lock.
(ii)
Remove the rip scale pointer on the right of the yoke
assembly by withdrawing the two Phillips screws.
With the rip scale pointer removed, you have access
with an alien key to the locking screw as shown. (Fig.
18). Having slackened this screw, also loosen the
13mm lock nut (J) immediately beneath it. (Fig. 19).
Then release the rip lock and with an alien key via
the access hole in the underside of the yoke (Fig. 20)
rotate the eccentric bearing (R) slightly until it is
sufficiently in contact with the arm track to ensure
that all 3 bearings rotate as the yoke assembly is
moved backwards and forwards along the arm. If you
find it difficult to feel when the adjustment is correct,
you may find it easier if you remove the Arm end-cap
so that you can see the 3 bearings rotating in the
tracks. Once satisfied that the adjustment is correct,
retighten the 13mm lock nut and then the horizontal
alien screw and replace the ripscale pointer.
NOTE: The top and bottom edges of all three
bearings should be in contact with the arm tracks
over their entire length and the roller head assembly
should move freely but without side-play.
Fig. 15
Fig. 16
Fig. 17
Fig. 18
Fig. 19
Fig. 20
10
Hide quick links:
Advertisement
Table of Contents
