3.1
SECTION 3 - MAINTENANCE & TROUBLESHOOTING
BLADE CHANGING PROCEDURE
NOTE: Wear gloves for protection from the sharp blade.
1. Open the Idler Wheel and Drive Wheel doors and raise the head to approximately 8”.
2. Release the blade tension by turning the Blade Tension Switch to “-”.
3. At the top of the head, the saw blade runs in a protective channel. Grip the blade at
each end of this channel and twist the blade teeth down past the channel and slide
the blade forward. Let the blade rest on the out feed table, then slide the blade down
and out of the carbide guides.
4. Before installing the new blade, check that it measures 1.345” wide including the
teeth. Some blade manufacturers supply blades that measure 1.25” including the teeth. In this case you may not
be able to adjust the head down limit to complete the cut.
5. Your new blade will be in a coil. While wearing gloves, hold the blade away from yourself, twist the blade to uncoil
it. Do not let the blade teeth bounce on the concrete floor as some damage to the blade may be caused.
6. Place the new blade in the carbide guides and then slide the blade over the wheels. The teeth should be pointing
towards the drive side as they pass through the carbide guides.
7. With the blade tension switch set to the “+/RUN” position, turn the two carbide locking handles clockwise to the
locked position. Jog the blade a few rotations to check that the blade is not moving in or out on the blade wheels.
Continue with steps 9 through 11. After checking the tracking, be sure the Blade Tension Switch is in the “+/RUN”
position.
BLADE TRACKING and ADJUSTMENT
8. The blade tracking will stay fairly constant, however it should be checked occasionally as shown in the photo. The
blade teeth should protrude from .270” to .290” (6.9mm to 7.3mm) from the face of the blade wheels. If the track-
ing requires adjustment, follow the steps below
9. First, inspect the blade wheels for wear or damage and repair as required. Blade tracking adjustment should al-
ways begin at the wheel where the tracking is farthest out of specification. Using the instructions below, adjust the
worst wheel, jog the blade and recheck both wheels. Repeat this process until both wheels are within specifica-
tion, .270” to 290” (6.9mm to 7.3mm).
a. Idler Wheel Adjustment. -- The tracking is adjusted by regulating the “push” set screws and the “pull” hex
bolts. Loosening bolts “A” and turning in set screws “C” by equal amounts will move the blade off the
wheel. Loosening bolts “B” and turning in set screws “D” by equal amounts will move the blade on to the
wheel. After each “C” or “D” adjustment, tighten bolts “A” or “B”, turn the blade tension switch to “+/RUN”,
run the blade and then check the tracking.
Switch off before beginning work.
• The emergency switch, which is used to turn the hydraulics off, should not be the only means of shutting the
power off before cleaning or performing maintenance to the machine. The main power disconnect should be
switched off and locked.
• When performing maintenance on the electrical system the main disconnect, which supplies power from the
electrical service to the machine, should be switched off.
• Allow three minutes after turning off the power from the main electrical service to the saw before opening any
electrical enclosures. Your machine might be equipped with a variable frequency drive unit which stores electric-
ity inside it’s capacitors which require a minimum of three minutes to completely discharge.
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