Logosol M7 - Ensure Guide Rail Straightness; Adjust Log Bed Angle; Verify Adjustments

2. Make sure the guide rail is
not warped.
Remove the saw unit and
the log grip. If the sawmill is
equipped with any support
legs and guide rail extensions,
remove these. Place two
straight boards or two spirit
levels across the guide rail
with a space of at least 2
metres (6.5 ft) between
them. Stand at the end of
the guide rail and sight along
the guide rail over the boards.
Place the boards at different
positions on the guide rail. If
the boards (or spirit levels)
are not parallel, the guide rail
is warped.
Remedy: Make sure that
the angle between the guide
rail and the long leg is 90
degrees. If this is not the
case, adjust this angle. In
case this is not enough to
eliminate the warping, loosen
one guide rail strut at a time,
press the guide rail straight
and retighten the struts.
Recheck the straightness of
the guide rail according to
the instructions on p.22. Be
careful not to press the guide
rail in any direction when
retting any support legs and
extensions.
3. Check the angle between
the log bed and log support.
The play in the plastic slide
proles of the log bed affects
the measuring. Therefore,
the log bed should always
be pushed out from the
log support when you are
measuring. The angle must
be exactly 90 degrees.
Remedy: If this angle is not
90 degrees, you can adjust
this by using schims, i.e. thin
pieces of sheet metal. You
can buy schims from Logosol,
but you can just as well cut
strips from an aluminium
soda can or the like. To lift
the outer edge of the log
bed, loosen the log bed from
the lifting beam. Place one
or several layers of schims
(15x12 mm = 0.6”x0.5”) on
top of the lifting beam, either
at the outer end or at the inner
end. If you place 0.2 mm
(0.008”) on the lifting beam,
the outer edge of the log bed
will be raised approx. 1 mm
(0.04”).
Carefully place the log bed on
the lifting beam and tighten the
screws. Repeat the process
until you are satised with the
angle. Then, adjust the height
of the log beds according to
the instructions on p.23, but
Fine-tuning the M7
34
only measure furthest in on
the log bed, closest to the bar
tting. When the log bed is set
at 2”, the distance between
the guide bar and the log bed
is to be 52 mm (2.05”). Use
your setting block and calliper
when adjusting.
4. Check the adjustments
made in points 2 and 3.
Push the saw unit (without
the chain mounted) onto the
guide rail. Make sure that
you have the same deviation
on both the log beds. Push
the log bed outwards when
measuring. For example, if
the log bed is set at 2”, you
will get the measurement 52
mm (2.05”) at the inner end
and 48.5 mm (1.9”) at the
outer end of both the log beds.
The measurements are now
incorrect, but they are at least
the same.This indicates that
you have adjusted correctly
in step 2 and 3. The deviation
will be corrected in step 5.
If you do not get the same
measurements on both the
log beds, the guide rail is
still warped, or the angle
between the log bed and the
log support is not 90 degrees
(repeat step 2 and 3).