Operation
Up/Down Operation
4
4-10
doc042607
Operation
4.2.8
Up/Down Operation
In LT70AC Remote sawmills the upward/downward movement of the saw head can be
controlled manually (MANUAL mode) or automatically (REF/PAT/BED REF modes).
In MANUAL mode the operator must position the saw head for the first cut by pushing or
pulling
and holding
the left joystick. The joystick controls move the saw head up or down
until the joystick is released.
Manual Control
1. To activate MANUAL mode (manual control), push the while MANUAL button.
The button will illuminate.
2. To move the saw head up or down to any height, push appropriately (toward you
or away from you) and hold the left joystick.
Automatic Control
In AUTOMATIC control mode the saw head is
quickly
lowered or raised to the next
cutting positions. This considerably reduces the time needed to prepare the sawmill for
cutting the next board or cant.
There are two sawing methods that can be used to automatically cut preset sizes on the
LT70AC Remote sawmill:
REF MODE
The computer references a temporary position of the blade and automatically
moves the blade either up or down from that position the distance determined by the
selected BOARD THICKNESS dimension. This method is best used when sawing
a log into a cant and thickness of the last board is of no importance. When applying
this method of automatic sawing, a group of white buttons at the left of the display
(REF 1, REF 2 and REF LOCK) is used.
PATTERN AND BED REF MODES
The computer calculates all cuts for the active board thickness
from the bed of the
sawmill
. The blue PAT 1 and PAT 2 buttons, located at the right of the display,
activate a function allowing the operator to preset thickness of the board (cant) that
will remain on the sawmill bed after the last cut. This board can be of a thickness
different from other boards’. If the operator wants to get identically-thick boards
MANUAL /
SETTINGS
