10
thrust screws.
3) Turn the rear screw in first, bringing it up
to the column. Push gently on the frame to
feel contact with the post.
4) Hold the frame with the rear screw
against the post. Turn the front screw to the
post, lightly, then back it off
c
TH
turn.
c
TH
turn is the required .008 clearance between
the post and screws in the frame.
5) Tighten the lock nuts and check the saw
head for smooth feed.
8. Saw head stall.
If the blade comes to the work piece and
starts the cut but seems to float without
sawing, check the following malfunctions.
a) Make sure the blade is sharp, and the
proper blade for the work piece. Too much
sawing force applied to a small tooth blade
on a wide work piece fills saw tooth gullets
before the blade clears the work piece to
empty the gullets.
Chips locked in the tooth gullet, still in the
blade kerf, force teeth tips up away from the
cut, causing the blade to float through the
kerf. Change the blade to one with fewer
teeth and larger gullets, or use less sawing
force to form smaller chips, at the risk of
heating the blade to the point of hardening
the work piece.
b) Monitor the sawing force.
Use only 30 to 50 pounds of sawing force
and use the proper blade for the work piece.
c) Look for a hydraulic line kink from the
blade guides back to the control console,
limiting hydraulic fluid flow from the metering
valve to the control valve.
d) Look for dirt lodged in the blade guides,
preventing the metering valve from function-
ing. Keep the guides clean. Dirt and chips
blocking the metering valve linkage forces
the metering valve closed and the saw head
will not move, or come down only slowly.
See the maintenance section for a blade
guide inspection.
e) Silt will by-pass a plugged hydraulic fluid
filter and accumulate in the metering valve.
Check the hydraulic fluid reservoir for a
milky-white color. Water or coolant in the
fluid will contaminate the entire system.
See hydraulic fluid level and sawing force in
the maintenance section.
9. Saw blade stall.
If the blade jams in the cut it is either the
wrong blade for the work piece, too much
sawing force for the blade or blade tension is
improper.
Correct the sawing practice.
Wait five minutes and press the motor starter
reset control. If the blade stalls with the
motor running, shut the machine down. Free
the blade from the kerf and tension the blade
properly. Rotate the work piece a few
degrees so the blade will not hang up in the
same kerf.
10. All system stall.
The hydraulic pump motor is thermal over-
load protected to shut down the system if the
motor overheats. Let the motor cool five
minutes and press the reset control. Also
see electric maintenance section "D."
11. Saw head drift.
It is normal for the saw head to drift down
while sitting idle for a time.
Remove all work from the vise jaws, tools
and other material from the work bed at the
end of each shift.
Unauthorized machine use or drift down, the
blade coming into contact with material left in
its path, may destroy the blade and the
material.
IV MAINTENANCE
To assure smooth running machinery and
save hours of downtime and repair costs
