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You have downloaded a manual for our MODEL CPO-275 COLD SAW Please download our Cold Sawing Guide too. Read both the manual and guide before operating this saw!!
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MODEL CPO-275 COLD SAW S/N B39130421 & AFTER Printed May 2021 SCOTCHMAN IND. - 180 E US HWY 14 - PO BOX 850 - PHILIP, SD 57567 Phone: 1-800-843-8844...
1.0 INTRODUCTION The CPO-275 Cold Saw is designed to cut solids, tubes, flats and other profiles in grades of material that range from hot and cold rolled steel, annealed tool steels, stainless, aluminum, brass, copper, synthetics and extrusions. Cold sawing is a process similar to a milling process. In most cases, this, combined with the self centering vise feature, gives a finished cut that does not require any secondary machining or de-burring.
This machine is top heavy and must be anchored to the floor. 3.0 WARRANTY Scotchman Industries, Inc. will, within three years of the date of purchase, replace F.O.B. the factory or refund the purchase price for any goods which are defective in materials or workmanship, provided the buyer, at the seller’s option, returns the defective goods freight and delivery prepaid to the seller, which...
4.0 INSTALLATION AND SET-UP ⌦ CAUTION: THIS SECTION DISCUSSES INSTALLATION, SET-UP AND START-UP PROCEDURES. PLEASE READ IT THOROUGHLY BEFORE OPERATING THIS MACHINE. IF YOUR MACHINE IS EQUIPPED WITH EITHER THE POWER VISE OR THE POWER DOWN FEED OPTION, READ ALL SECTIONS CONCERNING THESE OPTIONS BEFORE OPERATING THE SAW.
4.2 MACHINE MOVING PROCEDURES SEE FIGURE 2 ON THE FOLLOWING PAGE. This machine is shipped on a pallet and can be moved to the installation location by means of a fork lift. ⌦ CAUTION: THIS MACHINE IS TOP HEAVY AND MUST BE MOVED WITH CARE, ON HARD, FLAT SURFACES ONLY.
4.3 PHYSICAL INSPECTION Once the machine is located, check it for any possible damage incurred in shipment. Remove the lifting eyelet and install the draw handle. ⌦ CAUTION: DO NOT USE THE LIFTING EYELET FOR ANY MACHINES OTHER THAN THIS SAW. MAKE SURE THAT THE DRAW HANDLE HAS A JAM NUT ON THE THREADS BEFORE INSTALLING IT ON THE SAW.
THRU 3-8. For supply lines ten feet (303 cm) or shorter, we recommend 12 gauge wire. For lines longer than ten (303 cm), we recommend 10 gauge wire. We do not recommend supply lines over twenty feet (606cm) in length. CPO-275-LT. (30-60 RPM) MOTOR VOLTAGE FULL LOAD CURRENT...
On machines equipped with either a power vise or a power down feed, the air supply must also be disconnected and locked or tagged. If your plant is not equipped with lock-out capabilities, Scotchman offers a lock-out switch as an option for this machine. If you are interested in this option, REFER TO SECTION 7.6 or contact your local dealer or the factory.
4.6 GUARD ADJUSTMENT-MANUAL MACHINES SEE FIGURE 4 BELOW. FOR GUARD ADJUSTMENT PROCEDURES ON SAWS EQUIPPED WITH THE POWER DOWN FEED OPTION, REFER TO SECTION 7.2C. The proper adjustment of the blade guard on this machine is crucial to the operation of the machine and the safety of the operator.
4.7 COOLANT SYSTEM The coolant reservoir has a capacity of eight (8) gallons (30.3 liters). One gallon of coolant is shipped with the saw. For normal cutting, it should be mixed in a ratio of one part coolant to seven parts water. In conditions of heavier cutting, the ratio of water should be reduced to five parts.
5.2 CUTTING OILS AND LUBRICANTS SECTION 10.5 lists Scotchman’s parts numbers for cutting oils and lubricants. Using high quality lubricants and oils will greatly increase the life of this equipment. We recommend using only pure, synthetic, water soluble cutting oil for coolant. For the saw head, use a non-EP additive ISO-460 gear oil specified for worm gears.
5.4 COOLANT PUMP MAINTENANCE FOR OLDER MODELS, REFER TO SECTION 12.0. IF YOUR COOLANT PUMP IS LEAKING OR LACKS POWER, USE THE FOLLOWING STEPS. We recommend replacing the pump seal kit anytime that the pump is dismantled. FOR PART NUMBER IDENTIFICATION, REFER TO SECTION 9.6. Make sure that the power to the machine is off.
6.0 MACHINE OPERATION 6.1 INSTALLING BLADES - MANUAL MACHINES SEE FIGURE 6 BELOW. FOR INSTALLING BLADES ON MACHINES EQUIPPED WITH THE POWER DOWN FEED OPTION, REFER TO SECTION 7.2D. FIGURE 6 Page 22...
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DO NOT MODIFY ANY BLADE TO FIT THIS MACHINE. DO NOT USE BLADES DESIGNED FOR THIS MACHINE ON ANY OTHER EQUIPMENT. The CPO-275 saw is designed to use a maximum 10-3/4 inch (275mm) diameter blade. The arbor size is 32mm with two 8mm pins spaced at 45mm.
CPO - 275 #060330 03/21 90° 45° CAPACITIES WITH MAXIMUM DIAMETER BLADES 275 MM INCHES Ø3-3/8 Ø2 Ø86 Ø51 INCHES 3 X 3 2 X 2 76 X 76 51 X 51 INCHES 3 X 3 2 X 2 76 X 76 51 X 51 INCHES 3 X 3...
6.3 SELECTING THE PROPER BLADE AND CUTTING SPEED In cold sawing, there is no such thing as a general purpose blade. To achieve the best results from your saw, proper blade selection is important. Each saw is shipped with a pitch (number of teeth) calculator, which will help to determine the proper blade for your application.
6.4 MATERIAL CLAMPING All work pieces must be clamped securely in the vise. Any slippage of the material can result in broken or damaged blades. The material should be clamped so that the contact surface between the material and the blade is as small as possible. For this reason, when cutting flat stock material, we recommend standing it up and cutting it through the thinnest section, whenever possible.
6.5 MITER LOCKING DEVICE SEE FIGURE 10 ON THE FOLLOWING PAGE. All models manufactured for domestic sales are equipped with a miter locking device which allows quick set-up for mitering at 45 degrees, left and right, and 90 degrees for straight cutting. A miter locking device is available as an option for models manufactured for international sales.
7.0 OPTIONAL EQUIPMENT 7.1 POWER VISE The power vise is an option that is normally ordered with the saw. It is not recommended as a retro-fit in the field. The power vise allows automatic clamping of the material, which improves productivity and reduces operator fatigue.
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TO ADJUST THE VISE TO THE SIZE OF MATERIAL BEING CUT: Release the locking collar (D) on the vise spindle. The vise spindle is left hand threaded and the locking collar must be turned clockwise to release it. Open the vise, using the positioning handle (E), and place the material in the vise. Crank the vise closed to within approximately 1/8 of an inch (3mm) from the material and relock the locking collar (D).
7.1B REPLACING THE SPINDLE IN THE AIR VISE SEE FIGURE 12 ON THE FOLLOWING PAGE. Disconnect the machine’s power and air supply. Remove the air lines (A) from the front of the cylinder. Remove the support block (B), the bolts (C) and the spacer (I) from the base of the vise. Remove the guide pins (D) out through the back of the vise.
7.1C REPLACING THE SEALS IN THE AIR VISE SEE FIGURE 13 ON THE FOLLOWING PAGE. Open the vise to its full open position. Disconnect the air lines from the cylinder. Remove the jam nut (G), the hand wheel (B) and the locking collar (C) from the front of the spindle.
7.2 POWER DOWN FEED The power down feed option, used in conjunction with the power vise option, changes a manual saw into a semi-automatic saw. These options will increase productivity and reduce operator fatigue. The power down feed option cannot be retrofit to machines with serial number 11940491 and prior in the field. This option can be used on machines with or without the power vise option.
7.2B STROKE CONTROL ADJUSTMENT (POWER DOWN FEED) SEE FIGURE 15 ON THE FOLLOWING PAGE. Before powering the machine, the up and down strokes of the saw head must be set. The stroke is set by the collars (A & B) on the shaft (C). TO SET THE STROKE: Without powering the saw, cycle the head down by depressing the foot switch, with the HI-Low switch in the OFF position.
7.2C GUARD ADJUSTMENT (POWER DOWN FEED) SEE FIGURE 16 ON THE FOLLOWING PAGE. ⌦ CAUTION: THE GUARD MUST BE ADJUSTED EVERY TIME THAT THE STROKE OF THE MACHINE IS ADJUSTED. TO ADJUST THE GUARD: Before adjusting the guard, set the up and down stroke of the machine by following the instructions in SECTION 7.2.
7.2D INSTALLING BLADES (POWER DOWN FEED) SEE FIGURE 17 ON THE FOLLOWING PAGE. ⌦ CAUTION: USE ONLY HIGH SPEED STEEL BLADES DESIGNED FOR THIS MACHINE. DO NOT MODIFY ANY BLADE TO FIT THIS MACHINE. DO NOT USE BLADES DESIGNED FOR THIS MACHINE ON ANY OTHER EQUIPMENT. The CPO-350 saw is designed to use a maximum 14 inch (350mm) diameter blade.
7.2E POWER DOWN FEED TROUBLESHOOTING THE HEAD FEEDS DOWN FULL SPEED WITH THE FLOW CONTROL (D) TURNED OFF. Bad check valve (V): Clean or replace it. THE HEAD FEEDS FAST WITH NO CONTROL, HEAD BANGING UP, LOW OIL LEVEL. Add oil (hydraulic oil). THE HEAD STOPS AND DOES NOT FEED THROUGH THE MATERIAL.
7.3 MATERIAL SUPPLY TRACKS A ten foot roller supply track, that can be bolted to the input side of the saw to support longer pieces of material, is an available option for this saw. The supply tracks can also be bolted end to end, to supply longer tracks, if needed.
7.4 DISCHARGE TRACKS WITH SCALES Roller discharge tracks equipped with either a right or left hand quick-loc are available in two lengths: 60" and 120" (122 & 303 CM). The discharge tracks mount to the machine in place of the 30 inch (76 CM) stop that was provided with the machine.
7.5 SPECIAL VISE JAWS Special vise jaws for holding square tubing, rectangular tubing and angle iron are stock items. Jaws for holding thin wall round tubes, profiles and bundles are available on a made-to-order basis. For prices and delivery on special jaws, contact your local dealer or the factory. 7.6 LOCK-OUT DISCONNECT SWITCH A lock-out disconnect switch is available for this machine if your plant is not equipped with lock-out capabilities.
8.0 TROUBLE SHOOTING GUIDE 8.1 ELECTRICAL TROUBLE SHOOTING 1. THE MOTOR WILL NOT RUN: Some models have a lock-out switch in the base of the saw. If your saw has this option, make sure that it is in the ON position. On manual and power vise machines, the Hi-Low switch must be in either the Hi or the Low position for the trigger switch to work.
8.2 BREAKAGE OR EXCESSIVE DULLING OF BLADES Select the proper blade and spindle speed for the material being cut. For recommendations, REFER TO SECTION 6.3. Always break in the blade before you start normal cutting. Do not apply excessive down pressure on the workpiece. Excessive down pressure will cause the teeth to remove too large of a chip, resulting in premature dulling or breakage.
8.3 COOLANT SYSTEM IF COOLANT WILL NOT FLOW: Check the wiring connections to the pump and make sure that the pump is running in the right direction. The pump has an arrow in the casting to indicate the direction. Check the level of the coolant in the reservoir. If the level is less than 3 inches, the fluid will not flow.
8.4 GEAR REPLACEMENT SEE FIGURE 21 BELOW. Remove the drain plug (A) from the head casting and allow the fluid to drain. Remove the motor from the head. Remove the three bolts (B) from the bearing housing (C) through the access holes in the guard. Remove the spindle shaft (D) with a slide hammer.
9.0 PARTS LISTS 9.1 SAW HEAD ITEM PART # DESCRIPTION 075080 Key 7 x 8 x 32mm 077151 Spindle Shaft 077143 Spindle Cap 075075 Seal 077146 Gasket 075076 Roller Bearing 077147 Spacer Ring 077148 Spacer Bushing 077149 Worm Gear (Bronze) 075081 Snap Ring 077150...
9.4 MOTOR ASSEMBLY ITEM PART # DESCRIPTION 076555 Fan Cover 076890 Fan Cover - 1 PH 073444 M4 X 10 DIN912 SHCS 076895 275 Fan Blade EMOD 076891 Fan - 1 PH End Casting 077194 075050 Distance Ring 075049 Rear Bearing (6205 Z) 076369 Key 6 x 6 x 15mm 073326...
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078000 60 RPM/230 Volt 1 Phase/T-S 078001 60 RPM/230 Volt 1 Phase/E-S FIGURE 25 Page 61...
9.5 ELECTRICAL UNIT ITEM PART # DESCRIPTION 060094 Switch Box and Lid Sales Included with Item A 221002 M-4 x 12 SHCS 060071 Contactor-24 Volt (S/N Needed) 077881 220 Volt Contactor (Used from 1990-1996) 460 Volt Contactor (Used from 1990-1996) 077882 078456 M4/6 TERMINAL BLOCK...
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DANGER ELECTRICAL HAZARD Turn off power and lock out before servicing. FIGURE 26 Page 63...
9.7 CAST BASE AND PEDESTAL ITEM PART # DESCRIPTION 077111 Pedestal 077113 Base Casting 660535 Base Casting Power Vise 203210 M-8 x 25 SHCS 077225 Miter Lock Mount 077227 Spring 077226 Release Handle 077228 073660 M-8 x 12 HHCS 073420 M-8 x 25 SHCS 077212 Upper Spring Mount...
10.0 OPTIONAL EQUIPMENT PARTS LISTS 10.1 POWER VISE ASSEMBLY ITEM PART # DESCRIPTION 077415 Acme Nut 077414 Cast Grip Cheeks 221015 M-6 x 80 SHCS 077422 Screw Spindle 060204 Cylinder Housing 077417 O-Ring 077416 O-Ring 077411 Piston 077418 Roll Pin 060450 Cylinder Cover 077419...
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077409 Lock Ring 060270 Covering Cap 077310 Seal 077412 Complete Air Cylinder 076371 Cylinder Seal Kit (Includes F, G & K) 677878 Complete Air Vise FIGURE 30 Page 71...
11.0 STOCK BLADES ITEM PART # DESCRIPTION 074300 90 Tooth 10 Inch (250mm) Dia. 074304 100 Tooth 10 Inch (250mm) Dia. 120 Tooth 10 Inch (250mm) Dia. 074302 074306 150 Tooth 10 Inch (250mm) Dia. 180 Tooth 10 Inch (250mm) Dia. 074305 074307 240 Tooth 10 Inch (250mm) Dia.
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Style 2 Style 2A Style 3 Notch Grind FIGURE 40 THERE ARE FOUR STYLES OF BLADES AVAILABLE: STYLE 2: Has a round back tooth with a square face and top. This style is designed for thin wall, nonferrous tubes, plastics and synthetics. STYLE 2A: Is an alternate top bevel grind.
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The Worlds Best Cold Saws & Ironworkers Proudly Made In America www.scotchman.com Scotchman Ind. - 180 E US Hwy 14 - Philip, SD 57567 1-605-859-2542 - www.scotchman.com 10/8/20...
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16° - 18° Hook Angle is Standard and is often referred to as "Rake" or "Rake Angle" DATE: SCALE: PART NAME: TOLERANCE (UNLESS SPECIFIED) Cold Saw Blade The Worlds Best Cold Saws & Ironworkers Scotchman Inds. Scotchman Inds. 5/12/16 None .0 = +/-.02 (.5mm) 180 E US Hwy 14 Tooth Geometry Proudly Made In America .00 = +/-.01 (.25mm)
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.050 Wall Thickness DATE: SCALE: PART NAME: TOLERANCE (UNLESS SPECIFIED) The Worlds Best Cold Saws & Ironworkers Scotchman Inds. Selecting the Proper Scotchman Inds. 5/12/16 None .0 = +/-.02 (.5mm) 180 E US Hwy 14 Cold Saw Blade Proudly Made In America .00 = +/-.01 (.25mm)
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Triple Chip and Alternate Grinds are by far the most common. Power 2000 Blades have the Notch Grind & Titanium Coating. DATE: SCALE: PART NAME: TOLERANCE (UNLESS SPECIFIED) Scotchman Inds. The Worlds Best Cold Saws & Ironworkers Selecting the Proper Scotchman Inds. 5/12/16 None .0 = +/-.02 (.5mm)
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