CTD N80X User manual

CTD MACHINES
2382 East 48th Street
Vernon, CA 90058
Tel [phone]  FAX [phone]
World Wide Web: http://www.ctdsaw.com
e-mail: [email protected]
05.2016
CTD MODEL NO:
CTD SERIAL NO:
MANUFACTURE DATE:
DISTRIBUTOR PURCHASED THROUGH:
(IF ANY)
INSTRUCTION BULLETIN
& MAINTENANCE MANUAL
FOR
CTD MODELS N80X & N90X

SUBJECT PAGE NO.
Machine Requirements......................................................................................................................... 2
Installation and Set-Up......................................................................................................................... 3
Electrical Installation............................................................................................................................ 8
Air Pneumatics.................................................................................................................................... 10
Safety Instructions............................................................................................................................... 12
How to Operate the Machine............................................................................................................... 12
Preventative Maintenance.................................................................................................................... 16
Repair and Service............................................................................................................................... 17
Spindle and Pivot Shaft Diagrams.......................................................................................................... 17
N80 Blade Guard and Stand Exploded View........................................................................................... 19
N80 Base Exploded View..................................................................................................................... 20,21
N90 Blade Gard and Stand Exploded View............................................................................................ 22
N90 Slide Exploded View...................................................................................................................... 23
N90 Splindle Exploded View.................................................................................................................. 24
Parts List............................................................................................................................................. 25,26
Machine Requirements:
MODEL NO:_____________ SERIAL NO:________________
Cutting Capacities
Staggered Saw Blade/Toe-Notch Configuration
Model N80X: 4-1/2” (114mm) x 4-1/2” (114mm) Deep x 3” (76mm) High
Model N90X: 16” (406mm) Blade Capacity; 6” (152mm) x 6” (152mm) Deep x 4” (102mm) High
18” (457mm) Blade Capacity; 7” (178mm) x 7” (178mm) Deep x 4” (102mm) High
Note: With special configuration up to a 7-1/4” (184mm) can be done.
Mitre Cutting/Staggered Saw Blades
Model N80X: 3-5/8” (92mm) Wide x 3” (76mm) High
Model N90X: 16” (406mm) Blade Capacity; 4-1/8” (105mm) Wide x 4” (102mm) High
18” (457mm) Blade Capacity; 5” (127mm) Wide x 4” (102mm) High
Mitre Configuration/Non-Staggered Saw Blades
Model N80X: 3-1/2” (89mm) Wide x 3” (76mm) High.
Capacities up to 5” (127mm) High with special blade guard modification at extra charge
Model N90X: 16” (406mm) Blade Capacity; 4” (102mm) Wide x 4” (102mm) High
18” (457mm) Blade Capacity; 4-3/4” (121mm) Wide x 4” (102mm) High
Capacities up to 6” (152mm) high with special blade guard modificaiton at extra charge
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Electrical Requirements: Based on two motors per machine
Motor Load Amperes
Model No. Motor Size RPM 230 Volt 440 Volt
N80X 2 H.P., 3 Phase 3450 5.4 amps 2.7 amps
N80X 2 H.P. 1 Phase 3450 12.5 amps N/A
N80X 3 H.P., 3 Phase 3450 8.6 amps 4.3 amps
N90X 3 H.P., 3 Phase 1725 7.4 amps 3.7 amps
N90X 5 H.P., 3 Phase 1725 13.2 amps 6.6 amps
Pneumatic Requirements:
1 CFM per 10 strokes at 75 PSI (.043 cubic meters at 5.4 kg/cm2)
Dust Collection Requirements: 1200 CFM at 6” outlet
Cutting Tool Requirements: Heavy, rigid plate blades
13” blades: .110 to .120 plate; 16” blades: .120 to .130 plate; 18” blades: .130 to .140 plate
Installation and Set Up:
The Model N80X uses two 2 H.P. 3 Phase, 3450 RPM, 60 Hz TEFC Motors on a NEMA 56 Frame.
The Model N90X uses two 3 H.P. 3 Phase, 1725 RPM, 60 Hz TEFC Motors on a NEMA 182T Frame.
A disconnect switch is provided and the machine should be disconnected before blades are mounted, or at any time the
machine is serviced, or the blade is exposed. For motor protection against voltage fluctuations, a Dual Magnetic Starter
is provided as a standard feature. This starter protects the motor from overheating and will not allow the motor to
restart by itself after power outages. In addition, there is a safety interlock switch located under the blade guard. If the
blade is not locked down or in place, the machine will not start.
Space Requirements:
N80X N90X
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IMPORTANT: Before operating saw, please be sure to read the “SAFETY INSTRUCTIONS TO THE
OPERATOR” (on Page No. 12).
Note: The floor stand must be shimmed, leveled and bolted to the floor or framed in to eliminate vibration.
Use holes provided in bottom of floor stand. All machines have been completely assembled at the factory,
then disassembled for shipment.

Blade Installation:
For both Model N80X & N90X: Before setting blades on spindle, disconnect power. Supply air to the machine so
that blades rise to the top of the stroke. Remove front blade guard by loosening side guard wing nuts or bolts and then
remove two top blade guard wing nuts. Lift guard off, exposing spindle.
1. Remove spindle nut and flange, using the 1-7/16” wrench provided or a large crescent wrench.
2. Place blades on spindle with tips pointing down. Blade must always rotate to the rear of the machine on the
underside of the blade (see Picture “A” on Page No. 5).
3. Replace flange and nut as before, and tighten (refer to Diagram No. “2” on Page No. 5).
4. If blades were purchased from CTD, your machine has been set with your blades marked “RIGHT” and
“LEFT” for Notching. If not, diameters vary. Follow special Instructions for Aligning Blades below. See
Diagram No. “1” on Page No. 5 for blade configuration. If notching, right blade must be directly below
left blade. If mitering, blades are set on the same plane and should be set for Miter Configuration (see page 5)
The blade must rotate down and to the rear of the machine on the underside of the blade (see Picture “A” on Page
No. 5). Your machine has been wired for the specified voltage at the time of your order. Note: You cannot change
the voltage without changing the starter. The motors have been connected to the starter.
Instructions for Aligning Blades on Model N90X:
Using an angle plate and the left blade as a reference point, touch the angle plate to the outside carbide tips of the blade.
Be sure the angle plate is square to the tips and not touching the plate of the blade. The tip of the right blade should
make very slight contact with the edge of the angle plate when rotated in the opposite direction (by hand) for
the notching configuration. For Mitre Configuration, set blades as shown in Diagram No. 1
1.To move blade forward (see Pictures “A” & “B”):
A. Loosen bolt “F” on the Motor Mount Bottom Angle, P/N 9M26 R or L (see Picture “B”, bottom rear of Slide).
B. Loosen and lightly snug four lock bolts marked “A” Top & Bottom located on P/N 9M28 R or L Spindle
Housing Mounting Plate. **Be careful not to loosen too much, as this will cause the mounting plate to cock
at an angle.
C. Loosen bolts “C”, top and bottom (4), located on Blade Adjustment Bar, P/N 9M38.
D. Loosen nuts only on bolts “B”,(4) top and bottom, located on Blade Adjustment Bar, P/N 9M38. Turn bolts
“B” to the right to move blade forward.
1. If blade is positioned correctly for Notching, when it is rotated by hand backwards, blade should make a
slight ticking sound against angle plate.
E. After blade has been adjusted;
1. Tighten nuts on bolts “B”, top and bottom (4)
2. Snug bolts “C”, top and bottom (4)
3. Firmly tighten four lock bolts “A”, top and bottom
4. Tighten bolt “F” on Motor Mount Angle, P/N 9M26 R or L
2. To move one blade backwards (see Pictures “A” & “B”)
A. Loosen bolt “F” on Motor Mount Angle, P/N 9M26 R or L (see Picture “B”, bottom rear of Slide).
B. Loosen and lightly snug four lock bolts marked “A” Top & Bottom (4) located on P/N 9M28 R or L Spindle
Housing Mounting Plate. **Be careful not to loosen too much, as this will cause the mounting plate to cock
at an angle.
C. Loosen nuts and bolts “B”, top and bottom (4), located on Blade Adjustment Bar, P/N 9M38
D. Turn bolts “C”, top and bottom (4) to the right and tighten to move blade backward.
1. If blade is positioned correctly for Notching, when it is rotated by hand backwards, it should make a slight
ticking sound against the angle plate.
E. After blade is adjusted
1. Snug bolts “B” (4) and tighten nuts
2. Firmly tighten four lock bolts “A”, top and bottom
3. Tighten bolt “F” on Motor Mount Angle, P/N 9M26 R or L
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-5-
Diagram No. 1
Diagram No. 2
Blade
Flange
Spindle Nut
Spindle
Slinger
Spindle Housing
Notching Configuration
Mitre Configuration
Picture “A”
Picture “B”

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Assembly of Tables and Gages for Mitering on Models N80X & N90X:
The floor stand must be shimmed and leveled, and if necessary, bolted to the floor to eliminate vibration. To connect
table or conveyor;
1. Assemble leg to table with nuts and bolts provided. The hole in the top of the table should be toward the
front and farthest away from the blade to attach fence support angle.
2. Attach Table, P/N BF17 to machine on angle bracket provided and level (see Diagram No. 3).
Belt Tension Adjustment for N90X (see Pictures “A” and “B” on Page No. 5):
1. Loosen bolt No. F on Motor Mount Bottom Angle, P/N 9M26 L or R, located at bottom rear side of Slide.
2. Loosen and snug four bolts marked No. D, Top & Bottom (Picture A) on Motor Mount Angle, P/N 9M26.
3. Loosen two nuts on bolts marked No. E on the top and bottom of Motor Mount Angle, P/N 9M26 L or R
(Picture B).
4. Turn bolts No. E to right to tighten tension, and to the left to loosen tension.
5. Re-tighten nuts on bolts No. E, and tighten four bolts marked No. D and bolt No. F.
Special Instructions for Moving Blades for Model N80X:
Use an angle plate and one blade as reference point. Touch
angle plate to outside tips of the left blade. Tip of right blade
should make slight contact with edge of angle plate in notching
configuration.
1. To move one blade forward or backward
A. Loosen four bolts marked No. A, Top & Bottom,
located on Spindle Housing, P/N 9A05.
B. Adjust bolts No. B, Top & Bottom, to move spindle
housing to desired settings--forward or backward.
C. Tighten four bolts marked No. A on Spindle housing.
If blade is positioned correctly for notching, when it
is rotated by hand backwards, it should make a slight
ticking sound against the angle plate.
Diagram No. 3
Belt Tension Adjustment for N80X:
The belt tension on the N80X is controlled by a spring loaded motor mount pivot plate. A compression spring is set
between two spring supports--one located through the Center Brace, P/N 8C40, and the other on the motor mount
pivot plate. The distance between the lip of the spring supports is approximately 4”.
Picture “C”

Toe Notching Fence Configuration:
Toe Notching Fences are easily adjusted for the depth
of the notch by loosening adjustment Handle,
P/N 9B7P38, and sliding keyed fences to desired
dimension by aligning pointer on the measuring tape.
Fences will always remain square to blades because
they are keyed to the table base.
Diagram No. “4”
Attaching Measuring System to Machine for Mitre Cutting on Models N80X and N90X:
(see specific instructions for the Measuring System purchased)
For: FEX, OMD, RAB, OMD/RAB Combination Gages, or PAS
1. Place long measuring gage (P/N 15BM223) on table with measuring tape facing up. Bolt through Front Fence
Angle, P/N 15M36R with 3/8-16 bolts provided. Adjust gage so measurement rule is correctly set
(see Diagram No. “5”);
A. With scale or ruler touching the side of the tips of the blade, measure a distance away from the blade. Be
sure the ruler and the tape on the fence gage read the same.
B. Adjust fence, left to right as necessary.
C. Both fences, left and right, must be in perfect alignment. Use a long straight edge for this purpose.
1. Take a two foot steel scale lying flat on table base. Butt edge forward against fences. Touch each outside
corner of scale. If one side pulls away from fence, then long fence is not in alignment with left fence
(see Diagram No. “4”). Adjust front fence angle (p/n 15M36L or R or long fence as necessary.
D. Attach fence support angle to fence and table (p/n 15F82)
2. If Rabbet Angle Assembly was purchased, place aluminum angle with slide into keyway.
(Rabbet Angle Assembly, P/N 15E85 is comprised of Slide,
P/N 15M80 & Rabbet Angle, P/N 15M85).
A. Move angle forward to front fence and square up.
B. When rabbet angle is square against front fence,
both measurement rules should read the same.
This may be visually deceiving. Use a 90 square
to check.
C. Adjust rabbet angle on slide as necessary by loosening
1/4-20 bolts on rabbet slide.
3. How to use Rabbet Gage:
A. Feed stick length with 45 mitre past right blade.
B. Slide aluminum angle under rabbet of wood moulding to
desired dimension.
C. Move outside stop to that point and lock stop with handle.
D. Slide rabbet angle back and cut.
Diagram No. “5”
Diagram No. “6”
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-8-
Single Phase Motor Replacement:
Connect motor leads to T1 and T3 of overload relay for single phase motors. (See wiring diagram for single phase motors
on following page) Green ground wire must be grounded to enclosure. If using type “SO” wire and plug, use a dust tight
connector through Floor Stand and a grounded plug. Be sure to check rotation. If a change is necessary, open the motor
box located on the motor, and switch the #8 and the #5 wires. This reverses the rotation of a single phase motor. The
blade must rotate down and to the rear on the underside of the blade (see Picture “A” on Page No. 5).
Three Phase Motor Replacement:
Connect motor line leads to T1, T2, & T3 of the overload relays. (See wiring diagram for three phase motors.) Green
ground wire must be grounded to enclosure. Be sure to check rotation as polarities may be different. The blade must
rotate down and to the rear on the underside of the blade (see Picture “A” on Page No. 5). If a change in rotation is
necessary, reverse any two of the incoming power wires. Example: If the blades are running backwards and incoming
wires are connected White L1,Black L2,Red L3, switch the Black wire with the Red so that Black is connected to L3
and Red is connected to L2. This will change the blades to rotate properly.
Electrical Installation:
The CTD N80X uses two 2 H.P. single or three phase 3450 RPM, 60 HZ TEFC (totally enclosed fan cooled) motors on
a NEMA 56Z Frame. The N90X uses two 3 H.P. or 5 H.P. three phase 1725 RPM 60 HZ TEFC motors on a 182
Frame. CTD uses a speed up drive so that the blade will run at approximately 3400 RPM for the N80X and 2800 RPM
for the N90X..
Electrical installation should be performed by a qualified and certified electrician. A lock-out or disconnect switch is
located in front of the machine. It is a rotary switch to the left front of the machine. This disconnect switch is used to shut
off power to the machine and should be used whenever the blades are changed or at any time the machine is serviced and
the blades are exposed. A Dual Magnetic Starter, located inside the left side panel of the machine protects the motor from
overheating and will not allow the motor to restart itself after power outages or undervoltage situations. The START button
turns the motors “ON”. The STOP button turns the motor “OFF”. Note: The STOP button must be pulled out before
the START button will activate the motors. A safety interlock switch is located under the blade guard. The blade guard
must be in place and the safety interlock switch must be made or the motors will not turn on.
Electrical Installation of Power to Starter by a Qualified Electrician:
All wiring from the motors to the starter has been completed and tested at the factory several times.
The voltage has been clearly tagged. DO NOT CONNECT ANY VOLTAGE THAT IS DIFFERENT THAN
THE TAGGED VOLTAGE, AS THIS MAY CAUSE SEVERE DAMAGE AND DANGER.. CONSULT
FACTORY IF ANY CHANGES ARE NEEDED.
Bring incoming power lines to the rear of the machine on left side using hard wire and dust proof connectors. Attach
incoming power lines through Floor Stand to the rotary disconnect switch. Connect to terminals 2 & 4 for single phase
motors, and to terminals 2,4 & 6 for three phase motors. Always ground the green wire (See wiring diagram on Page No.
9). The blade must rotate down and to the rear on the underside of the blade (see Picture “A” on Page No. 5). If a
change in rotation is necessary, reverse any two of the incoming power wires. Example: If the blades are running
backwards and incoming wires are connected White L1,Black L2,Red L3, switch the Black wire with the Red so that
Black is connected to L3 and Red is connected to L2. This will change the blades to rotate properly.

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Motor Load Amperes
Model No. Motor Size RPM 230 Volt 440 Volt
N80X 2 H.P., 3 Phase 3450 5.4 amps 2.7 amps
N80X 2 H.P., 1 Phase 3450 12.5 amps N/A
N80X 3 H.P., 3 Phase 3450 8.6 amps 4.3 amps
N90X 3 H.P., 3 Phase 1725 7.4 amps 3.7 amps
N90X 5 H.P., 3 Phase 1725 13.2 amps 6.6 amps
480 Volt Wiring Diagram
208 Volt Wiring Diagram

N80X & N90X Air/Pneumatic System:
The air pneumatic system on the N80X and N90X is simple to use and understand, and easy to operate. The main
components of the air system are shown below in the Air Circuit Piping Diagram. The system operates by depressing
the Foot Valve, P/N B3P71. This gives a signal to the main 4-Way Control Valve in the Foot Valve to change the
direction—allowing air to pass to the main drive Cylinder, P/N 8B3P26 for the N80X, and P/N 9B3P29 for the N90X.
This pushes the saw heads down. The speed of descent is controlled by the Speed Control Valve, P/N 9B3P65
(located at the exhaust ports of the foot valve). The saws reverse when the Foot Valve is released. This signals the 4-
way valve to change direction of air flow to the drive cylinder and the saw heads reverse. See Diagram No. 7 for
operational components.
Foot Valve:
The Foot Valve, P/N B3P71 actuates the saw heads downward. Once the foot valve is depressed, it must be held down.
The stroke or downward movement of the saw heads can be reversed at any time by releasing on the foot pedal. Since
the Foot Valve rests on the floor, it is important to clean it regularly, as debris from cutting can make its way into the valve,
causing improper function. Do not maintain pressure on the Foot Pedal once the blades have cut through the material, as
the saw cannot reverse.
Speed Control of Blades Movement:
The downstroke speed of the blades is controlled by the Speed Control Valve, P/N 9B3P65 located in Port “3 ” or “S”.
The upstroke speed is controlled by the Speed Control Valve, P/N 9B3P65 located in Port “5” or “R”. Both Speed
Control Valves are located on the main 4-way Foot Valve.
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Diagram No. 7 Air Circuit Piping for Models N80X & N90X
Air Supply—The air supply must be turned off and all electrics disconnected before making adjustment on the power
feed. A working pressure of 75 PSI (5.4kg/cm2) is required. An industrial-type compressor of at least 3 CFM (.085
cubic meters) is recommended. An additional 3 CFM (.085 cubic meters is required for Sawblade Lubrication System.
A conveniently located valve should be supplied by the user to shut off the air line.