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MQ PS4030 SAW • OPERATION MANUAL — REV. #0 (02/29/08) — PAGE 47
MQ PS4030 SAW — MAINTENANCE
Removal and Replacement
To ensure correct Blade Shaft/Wheel alignment this operation
should be performed by and authorized Service Center.
Blade Alignment
Figure 52. Blade Alignment Requirements
Maintaining proper blade and drive system alignment will allow
the saw to cut lines that are straight without much effort. Therefore
the Blade Shaft Flanges MUST be equadistant to the sides of
the saw, (+/- .030"). See Figure 52 below where distance A must
equal distance B.
The second requirement for the blade is that it MUST be square
to horizontal (90
o
to flat surface). See Figure 52.
90
o
A
B
In addition to Blade alignment, maintaining proper blade and
drive system alignment will allow the saw to cut lines that are
straight without much effort. Therefore the Front Wheels and
Blade Shaft Axles MUST be at right angles to the frame edge.
In Figure 53 you see the distance "A" on the right side is shown
as "A + .187"" which means that the distance between centers of
the front and rear drive axles are 3/16" longer than on the opposite
side. This will have the effect of causing the saw to "steer" slightly
to the left. After becoming familar with the saws particular sawing
characteristics, the operator may wish to have this alignment
altered to fit his own preferences or to fit a particular application.
Drive System Alignment
A
A + .187”
X
X
Figure 53. Wheel Alignment Requirements
The drive wheels are aligned by adjusting the entire rear drive
assembly.
1. Loosen the Wheel Mount Assembly Attachment Bolts just
enough to move the Wheel Mount Assembly. Do not com-
pletely loosen the Bolts.
2. Loosen and tighten the Alignment Jackscrew nuts to move
the Wheel Mount Assembly, and thus the wheels, in the
appropriate direction to achieve the desired alignment dis-
tance. (See Fig. 53)
Drive System Alignment Adjustment