RIDGID R4120 Operator's Manual page 21

ASSEMBLY
SQUARING ThE BLADE TO ThE MITER TABLE
See Figures 22 - 25.
 Unplug the saw.
 Pull the saw arm all the way down and lock in transport
position.
 Lift the miter lock lever.
 Rotate the miter table until the pointer on the miter scale
is positioned at 0°.
 Lock the miter lock lever by pushing it down.
 Loosen bevel lock knob and set saw arm at 0° bevel
(blade set 90° to miter table). Tighten bevel lock knob.
 Place a combination square against the miter table and
the flat part of saw blade.
NOTE: Make sure that the square contacts the flat part
of the saw blade, not the blade teeth.
 Rotate the blade by hand and check the blade-to-table
alignment at several points.
 The edge of the square and the saw blade should be
parallel as shown in figure 23.
 If the top or bottom of the saw blade angles away from
the square as shown in figures 24 and 25, adjustments
are needed.
 Loosen the bevel lock knob.
 Using the blade wrench, loosen the bevel stop adjustment
screw and slide the bevel stop left or right as needed
to bring the saw blade into alignment with the square.
Retighten bevel stop adjustment screw. See Figure 26.
 Retighten bevel lock knob. Recheck blade-to-table align-
ment.
NOTE: The above procedure can be used to check blade
squareness of the saw blade to the miter table at both 0°
and 45° angles.
Your saw has several scale indicators. After squaring ad-
justments have been made, it may be necessary to loosen
the indicators screws and reset them to zero. See Figures
21 and 22.
Miter
FenCe
CoMbination
CorreCt view oF blaDe
sQuare
sQuare with Miter table
view oF blaDe not sQuare with Miter table,
aDJustMents are reQuireD
view oF blaDe not sQuare with Miter table,
aDJustMents are reQuireD
21
bevel
loCk
knob
blaDe
Miter
loCk
lever
Miter
table
Fig. 23
CoMbination
sQuare
Fig. 24
CoMbination
sQuare
Fig. 25