CTD N80X, Instruction Bulletin & Maintenance Manual

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Cutting Speed:
The blade is rotating at approximately 3400 RPM for the N80X and 2800 RPM for the N90X. When moving the
blade through the material, the blade must NEVER be allowed to dwell in the work. If fine finishes are required;
1. Use a sharp blade.
2. Use a constant, even pressure when cutting through material.
Clamping and Work Slippage:
The work must never be allowed to move or vibrate as it is being cut. When the work is positioned against a stop, it must
be clamped either by hand holding or by pneumatic air clamps. Never allow unclamped work between the blade and the
stop, as the blade can grab the material and throw it—thereby causing damage to the blade, the machine, and possibly
harming the operator. CTD offers both Horizontal and Vertical Clamps. The Horizontal Clamp pushes the material for-
ward against the front fence. Vertical Clamps hold the material down, against the table base. Both clamps are offered as
optional extras and are highly recommended. The clamps are actuated at the same time as the saw heads by depressing the
Foot Valve.
Check your material for squareness, using a 90  square. Material that is out of square will move when it is cut, thereby
causing irregular mitres. See “IRREGULAR MITRES”, Page No.17 . Additional tooling may be needed. Consult factory
for information.
Vertical Air Clamps:
Vertical Air Clamps should be installed on the Model N80X and N90X to hold material securely. They are controlled by
a 3-Way Valve mounted above the right motor on the N90X, and above the slide on the N80X. When the machine is in
the rest position, the 3-Way Valve shuts the air supply to the clamps. The clamps are actuated at the same time as the
blades by depressing the foot valve. The work must never be allowed to move or vibrate as it is being cut. When work
is positioned against a stop, it must be clamped. NEVER allow unclamped work between the blade and the stop.
Cutting Wood:
While wood is generally soft and simpler to cut than aluminum, it requires that the material be held in place as the blades
pass through the material. CTD suggests using a Carbide Blade with an Alternate Top Bevel (ATB) for lighter wood
sections and picture frame mouldings. This type of blade gives the finest of finishes. No ONE blade will cut all material
perfectly. High lacquers or mica mouldings require a special modified blade for best results. Consult factory. Never use
a wood blade to cut aluminum, as it will chip and fracture the carbide tips of the blade.
Vertical Clamp Assy.