Powermatic 74A Instruction Manual & Parts List

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TILTING ARBOR & SCORING SAW
Model 74A
Instruction Manual & Parts List
M-0460208
(800) 274-6848
www.powermatic.com
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This manual has been prepared for the owner and operators of a Powermatic Model 74A Tilting Arbor/Scoring Saw. It s purpose, aside from machine operation, is to promote safety through the use of accepted correct operating and maintenance procedures. Completely read the safety and maintenance instructions before operating or servicing the machine. To obtain maximum life and efficiency from your table saw and to aid in using the machine safely, read this manual thoroughly and follow all instructions carefully.
Warranty & Service
In most cases, any one of these WMH Tool Group Repair S tations can authorize warranty repair, assist you in obtaining parts, or perform routine maintenance and major rep air on your JET , Powermatic, Performax, or Wilton tools.
For the name of an Authorized Repair S tation in your area, please call 1-800-274-6848.
More Information
Remember, the WMH Tool Group is consistently adding new products to the line. For complete, up-to-date product information, check with your local WMH T ool Group distributor .
WMH T ool Group W arranty
The WMH Tool Group makes every effort to assure that its products meet high quality and durability standards and warrants to the original retail consumer/purchaser of our products that each product be free from defects in materials and workmanship as follow: 1 YEAR LIMITED WARRANTY ON ALL PRODUCTS UNLESS SPECI­FIED OTHERWISE. This Warranty does not apply to defects due directly or indirectly to misuse, abuse, negligence or accidents, normal wear-and-tear, rep air or alterations outside our facilities, or to a lack of mainte­nance.
THE WMH TOOL GROUP LIMITS ALL IMPLIED W ARRANTIES TO THE PERIOD SPECIFIED ABOVE, FROM THE DATE THE PRODUCT WAS PURCHASED A T RET AIL. EXCEPT AS ST A TED HEREIN, ANY IMPLIED WARRANTIES OR MERCHANTIBILITY AND FITNESS ARE EXCLUDED. SOME ST A TES DO NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED W ARRANTY LASTS, SO THE ABOVE LIMIT A TION MA Y NOT APPL Y TO YOU. THE WMH T OOL GROUP SHALL IN NO EVENT BE LIABLE FOR DEA TH, INJURIES TO PERSONS OR PROPERTY, OR FOR INCIDENT AL, CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OUR PRODUCTS. SOME ST A TES DO NOT ALLOW THE EXCLU­SION OR LIMITA TION OF INCIDENT A L OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMIT A TION OR EXCLUSION MA Y NOT APPL Y T O YOU.
T o take advant age of this warranty , the product or part must be returned for examination, postage prep aid, to an Authorized Repair S tation designated by our office. Proof of purchase date and an explanation of the complaint must accompany the merchandise. If our inspection discloses a defect, we will either repair or replace the product, or refund the purchase price if we cannot readily and quickly provide a repair or replacement, if you are willing to accept a refund. We will return repaired product or replacement at WMH's expense, but if it is determined there is no defect, or that the defect resulted from causes not within the scope of WMH's warranty , then the user must bear the cost of storing and returning the product. This warranty gives you specific legal rights; you may also have other rights which vary from state to state.
The WMH Tool Group sells through distributors only . Members of the WMH Tool Group reserve the right to effect at any time, without prior notice, those alterations to parts, fittings, and accessory equipment which they may deem necessary for any reason whatsoever.
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TABLE OF CONTENTS
Safety Rules ...................................................................................................................................... 4-5
Safety Decals ....................................................................................................................................... 6
Specifications........................................................................................................................................6
Receiving the Saw................................................................................................................................. 7
Installation & Assembly......................................................................................................................... 7
Cast Iron Extensions..................................................................................................................... 7
Mounting Blade ............................................................................................................................. 7
Rails & Accu-Fence ...................................................................................................................... 7
S plitter & Guard Assembly ............................................................................................................ 7
Mitre Gauge .................................................................................................................................. 7
Adjustments
Mitre Slot Alignment...................................................................................................................... 8
Tilt S top Adjustment ......................................................................................................................8
Fence Alignment ........................................................................................................................... 8
Mitre Gauge Adjustment................................................................................................................ 8
Main Blade Belt Tensioning ........................................................................................................... 8
Scoring Blade Belt Tensioning....................................................................................................... 9
Arbor & Arbor Bearing Removal .....................................................................................................9
Blade Raising Mechanism Adjustment ..........................................................................................9
S plitter Adjustment ........................................................................................................................ 9
Scoring Blade Kerf Adjustment......................................................................................................9
Insert Adjustment ........................................................................................................................ 10
Changing Saw Blades ................................................................................................................. 10
Tilting Mechanism Adjustment ....................................................................................................10
Scoring Blade Alignment ............................................................................................................. 10
Maintenance ....................................................................................................................................... 11
Instructions and Procedures for Circular Saw Operations
General Instructions .................................................................................................................... 11
Rip Sawing.................................................................................................................................. 12
Resawing .................................................................................................................................... 13
Crosscutting................................................................................................................................ 13
Bevel & Mitre Operations............................................................................................................. 14
Trouble-Shooting ................................................................................................................................. 14
Feather Board Construction................................................................................................................. 15
Filler Piece Construction ..................................................................................................................... 15
Push Stick & Push Block Construction ............................................................................................... 15
Parts Lists & Exploded Views:
S tand Assembly ..................................................................................................................... 16-17
Arbor...................................................................................................................................... 18-20
Trunnion ................................................................................................................................. 22-23
Scoring Assembly .................................................................................................................. 24-25
Mitre Gauge Assembly................................................................................................................ 21
S plitter & Guard Assembly ..................................................................................................... 26-27
Optional T able Extensions........................................................................................................... 28
Electrical Schematics .................................................................................................................... 29-30
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SAFETY RULES
As with all machines, there is a certain amount of hazard involved with the use of this table saw . Use the machine with the respect and caution demanded where safety precautions are concerned. When normal safety precautions are overlooked or ignored, personal injury to the operator can result.
Read, understand and follow the safety and operating instructions found in this manual. Know the limita­tions and hazards associated with this table saw .
Electrical grounding. Make certain that the machine frame is electrically grounded and that a ground lead is included in the incoming electrical service. In cases where a cord and plug are used, make certain that the grounding plug connects to a suitable ground. Follow the grounding procedure indicated in the National Electri­cal Code.
Eye safety . Wear an approved safety shield, goggles, or glasses to protect eyes. (NOTE: Common eye­glasses are only impact resistant, they are not safety glasses.)
Personal protection. Before operating the machine, remove tie, rings, watch and other jewelry and roll up sleeves above the elbows. Remove all loose outer clothing and confine long hair . Protective type footwear should be used. Where the noise exceeds the level of exposure allowed in Section 1910.95 of the OSHA Regulations, use hearing protective devices. Do not wear gloves.
Guards. Keep the machine guards in place for every operation for which they can be used. If any guards are removed for maintenance, DO NOT OPERA TE the machine until the guards are reinstalled.
Work area. Keep the floor around the machine clean and free of scrap material, saw dust, oil and other liquids to minimize the danger of tripping or slipping. Be sure the table is free of all scrap, foreign material and tools before starting to cut. Make certain the work area is well lighted and that a proper exhaust system is used to minimize dust. Powermatic recommends the use of anti-skid floor strips on the floor area where the operator normally stands and that each machine’s work area be marked off. Provide adequate work space around the machine.
Operator position. Maintain a balanced stance and keep your body under control at all times. Do not stand in line with the saw blade or work piece and do not allow anyone else to do so. Never climb on or near the saw.
Do not overreach. Use a support table or have a helper or “tailman” take stock away from the back side of the blade.
Housekeeping. Before turning on machine, remove all extra equipment such as keys, wrenches, scrap, and cleaning rags away from the saw .
Careless acts. Give the work you are doing your undivided attention. Looking around, carrying on a conversa­tion, and “horseplay” are careless acts that can result in serious injury .
Disconnect machine before performing any service or maintenance or when changing blades. A machine under repair should be RED T AGGED to show it should not be used until the maintenance is complete.
Alignment. Check the alignment of the splitter , fence and miter slot to the blade. A caution decal is installed on each guard and splitter to remind the operator of the dangers of misalignment.
Maintain tools in top condition. Check the saw blade for cracks or missing teeth. Do not use a cracked or dull blade or one with missing teeth or improper set. Make sure the blade is securely locked on the arbor.
Hand safety . Keep hands clear of the blade area. Do not reach past the blade to clear p arts or scrap with the saw blade running. Never saw free hand. A void awkward operations and hand positions where a sudden slip could cause your hand to contact the blade.
Safety devices. Always use the splitter , blade guard, push stick and other safety devices for all operations 4
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where they can be used. On operations such as dadoing or molding where the blade guard cannot be used, use feather boards (see page 15), fixtures and other safety devices and use extreme caution. Reinstall the splitter and blade guard immediately after completing the operation that required their removal.
Saw blade rotation. Be sure the saw blade rotates clockwise when viewed from the motor side (left side) of the machine.
Adjustments. Make all adjustments to the machine and operational setup with the power off. Never remove the insert with the blade running.
Material condition. Do not attempt to saw boards with loose knots or with nails or other foreign material, on its surface. Do not attempt to saw twisted, warped, bowed or in wind stock unless one edge has been jointed for guiding purposes prior to sawing.
Large stock. Do not attempt to saw long or wide boards unsupported where spring or weight could cause the board to shift position.
Job completion. If the operator leaves the machine area for any reason, he should turn off the power to the table saw motor and wait until the saw blade comes to a complete stop before his departure. In addition, if the operation is complete, he should clean the table saw and the work area. NEVER clean off the table saw with power on and NEVER use the hands to clear sawdust and debris; use a brush.
Replacement parts. Use only Powermatic or factory authorized replacement parts and accessories; other­wise the table saw warranty and guarantee is null and void.
Misuse. Do not use this Powermatic table saw for other than its intended use. If used for other purposes, Powermatic disclaims any real or implied warranty and holds itself harmless for any injury or damage which may result from that use.
If you are not thoroughly familiar with the operation of T able Saws, obt ain advice from your supervisor, instruc­tor or other qualified person.
Drugs, alcohol, medication. Do not operate this machine while under the influence of drugs, alcohol, or any medication.
Health hazards. Some dust created by power sanding, sawing, grinding, drilling and other construction activities contains chemicals known to cause cancer , birth defects or other reproductive harm. Some ex­amples of these chemicals are: * Lead from lead-based paint. * Crystalline silica from bricks and cement and other masonry products. * Arsenic and chromium from chemically-treated lumber . Y our risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals, work in a well-ventilated area, and work with approved safety equipment, such as those dust masks that are specifically designed to filter out microscopic particles.
Familiarize yourself with the following safety notices used in this manual:
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CAUTION: (This means that if precautions are not heeded, it may result in minor or moderate injury
and/or possible machine damage)
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WARNING: (This means that if precautions are not heeded, it could result in serious injury or
possibly even death).
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SAFETY
Familiarize yourself with the location of these safety decals on your table saw.
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SPECIFICATIONS (Model 74A)
T able Height ....................................................................................................................................... 35"
T able size without extension ............................................................................................. 38" W x 26" L
Table Size Std. Extension ................................................................................................. 38" W x 48" L
T able Size Long Extensions.............................................................................................. 38" W x 73" L
Arbor Diameter.....................................................................................................................................1"
Saw Blade Diameter............................................................................................................... 12" or 14"
Blade Tilt (left only) ............................................................................................................................ 45
Maximum depth of cut with blade at 90o.........................................................................................4-1/8"
Maximum depth of cut with blade at 45o.........................................................................................2-7/8"
Standard Fence Surface.................................................................................................. 3-1/4" x 43-7/8"
Maximum rip cut to right of blade (standard fence and extensions)..................................................... 30"
Maximum rip cut to right of bade (standard fence and long extensions) .............................................. 50"
Maximum Width of Cutoff 1" S tock..................................................................................................... 21"
Maximum Width of Cutoff 5-1/8" S tock............................................................................................... 17"
Maximum Width of Dado......................................................................................................................1"
Motor...... ................................... 7-1/2 HP , 3 Ph, 208/230V or 7-1/2 HP, 3 Ph, 460V or 5 HP, 1 Ph, 230V
Shipping Weight..........................................................................................................................940 lbs.
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RECEIVING THE SAW
Remove the saw from its shipping carton and check for damage. Report any damage to your distributor immediately. Accessories and rails were shipped in separate cartons. Read the instruction manual thor­oughly for assembly, alignment, maintenance and safety instructions. NOTE: Exposed metal parts such as the top and extension wings have been given a protective coating at the factory . This should be removed with a solvent (such as mineral spirits) once the machine has been assembled.
INSTALLATION & ASSEMBLY
Mount the machine on a solid foundation and secure to the floor with high-quality lag screws through the four holes provided in the machine's base.
CAST IRON EXTENSIONS
1. Mount the cast iron extensions using the (6) 1/2 x 1-1/4" hex. hd. cap screws and lock washers. Holding the wing in upright position to the saw table, insert the middle screw and lock washer first but do not tighten completely .
2. Pivot the wing to level position and insert the outside screws. Do not tighten completely .
3. Level the extension with the table, using a straight edge so that they form a flat plane with the table top.
4. Tighten all screws.
MOUNTING BLADE
If your blade came uninstalled, refer to "Changing Saw Blades," page 9. NOTE: Blade must be mounted before making rail and fence adjustments.
RAILS & ACCU-FENCE
(Refer to the manual that accompanies the Accu­Fence® to assemble rails and fence at this point.)
®
FIGURE 2
3. Mount the splitter assembly to the two ad­justing screws, Figure 3. Place the two flanges of the splitter assembly onto the screws as shown.
4. The splitter and guard assembly must be aligned with the blade. Adjust the splitter according to the directions on page 9, "S plitter Alignment."
FIGURE 3
MITRE GAUGE
Place washer on threaded rod, Figure 4, and screw the handle on to the bolt. Install the mitre gauge in its left hand slot on the table.
SPLITTER & GUARD ASSEMBLY
1. Insert the grooved end of the splitter support shaft through slot in rear of saw and into hole in trun­nion, Figure 1. Make sure the square head setscrew is backed out enough to allow easy insertion.
2. With a wrench, tighten square head setscrew into the groove of the shaft as shown in Figure 2. (NOTE: The groove will be in the proper position if the end of the shaft is made flush with the opposite side of the trunnion hole.) Tighten the locknut. The upright member of the rear splitter support must be on the left side of the shaft (observed from the saw's front).
FIGURE 4
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ADJUSTMENTS
MITER SLOT ALIGNMENT
To check the alignment of the miter slot to the blade, raise the blade to its 0 (90 deg.) position and its maxi­mum height. Mark one tooth with a grease pencil and position the tooth slightly above the top edge of the table at the front. Raise the miter gauge bar slightly out of its slot to serve as a shoulder . Using a combi­nation square against the side of the bar, slide the scale over until it touches the tip of the blade and lock scale in position, Figure 5.
FENCE ALIGNMENT
See Accu-Fence® manual.
MITRE GAUGE ADJUSTMENT
The mitre gauge is equipped with individually adjust­able index stops at 90 degrees and 45 degrees right and left. The index stops can be adjusted by tighten­ing or loosening the three adjusting screws (A), Fig­ure 7. To operate the mitre gauge, loosen lock handle (B), and move the body of the mitre gauge (C) to the de­sired angle. The mitre gauge body is set to stop at 0 degrees and 45 degrees left or right. To move the gauge beyond these points, the stop rod (D), must be pulled out.
FIGURE 5
Rotate the marked tooth so that it is slightly above the table top at the rear and using the square as in front, check whether the distance to the blade is the same. If it is not, loosen the three (3) mounting screws that lock the table to the cabinet and move the table to bring the miter slot in line with the blade. The blade should be kept centered with the slot in the table in­sert to ensure clearance at both the 90 deg. and 45 deg. positions. After aligning, lock the table to the cabinet by retightening the three mounting screws.
TILT STOP ADJUSTMENT
Using a combination square, check the 90 deg. (0) and 45 deg. stops as shown in Figure 6. Adjust stop positions if required, using the stop screws as shown. Check the pointer at 90 deg. and readjust if required.
FIGURE 7
If accurate crosscutting work is to be done using the miter gauge, check its squareness to the slot with a combination square and readjust the stop position if required, Figure 8.
FIGURE 8
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FIGURE 6
MAIN BLADE BELT TENSIONING
The saw is equipped with a set of three matched belts and on replacement, replace the complete set. T o re­tension the belts, loosen the cap screws on either side of the motor bracket as shown in Figure 9, and pivot the motor and bracket to the right. Retighten the mounting screws.
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FIGURE 9
SCORING BLADE BELT TENSIONING
The scoring blade belt is tensioned by the weight of the motor. If the belt should lose its tension, check the scoring motor pivot screws for binding. See Fig­ure 9.
ARBOR AND ARBOR BEARING REMOVAL
To remove the saw arbor, remove the table top. Re­move the lock nut, pulley and key . Use a wrench on the end of the arbor to hold it while loosening the nut. Loosen the setscrew in the saw raising arm and the arbor; bearings and spacer will then slide out of the arm housing, Figure 10.
NOTE: The saw arm setscrew must be tight to avoid the possibility of movement which could cause the blade to hit the insert.
FIGURE 11
SPLITTER ALIGNMENT
One of the most critical adjustments to help avoid kick­backs is the splitter alignment. It should be checked and readjusted if necessary after each blade change. To align the splitter to the blade, use a combination square against the side of the raised up miter gauge bar and slide the scale against the top of the tooth as shown in Figure 12. Check the splitter for parallelism to the miter slot and readjust if required. Check for clearance. Move the miter gauge to the opposite side of the blade and using the combination square, slide the scale against the top of the tooth. Check for clearance. Clearance should be approximately equal on both sides of the blade. The insert will have to be removed to get at the adjust­ment jack screw mounted in the center trunnion.
FIGURE 10
BLADE RAISING MECHANISM ADJUSTMENT
If binding occurs, clean off all sawdust and pitch build­up and lubricate with a good non-hardening grease such as Fisk Company Lubriplate. If binding contin­ues, check the fit-up of the worm and worm gear seg­ment. The worm must be centered with the worm gear segment. It if is not centered, loosen the saw raising arm setscrews and move the arm as required, Figure 1 1, and re-lock. If saw arm has been relocated, the table may have to be realigned so as to provide clearance between the saw blade and the table insert slot, and the splitter will have to be realigned.
FIGURE 12
SCORING BLADE KERF ADJUSTMENT
Make a cut part way through a board with the main blade (scoring blade down). Using a feeler gauge, check the width of the kerf of the main blade. Raise the scoring blade and make a cut part way through a board with it. Check its kerf width using a feeler gauge also.
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The scoring blade kerf is adjusted by increasing or decreasing the number of shims between the two scor­ing blade halves (the scoring blade actually consists of two narrow blades). Each shim varies the width by approximately .004" and will vary the width from .1 10" to .192".
INSERT ADJUSTMENT
Adjust the set screws as required in the insert, Figure 13, to ensure that the insert is stable and flush with, or slightly below, the table top.
TILTING MECHANISM ADJUSTMENT
If binding occurs in the tilting mechanism, clean off the sawdust and pitch accumulation and re-grease. If binding continues, check the alignment and readust as required to center the worm with the worm gear segment on the trunnion. If there is excessive play, loosen cap screws and adjust jackscrews clockwise to raise pinion, Figure 15. A tight mesh without bind­ing is ideal. Retighten mounting screws and check over the 90 deg. to 45 deg. range of tilt for excessive play or binding. Readjust if required.
FIGURE 13
CHANGING SA W BLADES
T o change a saw blade, disconnect machine from the power source. Remove the table insert. Place the arbor wrench on the arbor nut and use a block of wood wedged between the saw blade and table as shown in Figure 14. Remove the arbor nut and collar and saw blade. Install new blade making sure the cutting edge of the teeth at the top face toward the front of the saw. Slide the collar on the arbor and start the arbor nut on the threads. Snug the arbor nut against the collar and saw blade using the wrench while holding the saw blade with the thumb and finger tips. Wedge a block of wood between the saw blade and table and tighten the arbor nut securely . Replace the table insert and reconnect the machine to power source.
FIGURE 15
SCORING BLADE ALIGNMENT
Scoring blade alignment should be done after all other adjustments have been made. Using the rip fence, make a cut part way into a board with the main blade, with the scoring blade up. Turn board over and check alignment of the scoring cut with the main blade cut. Adjust scoring saw as necessary to provide the same amount of scoring step on each side of main blade cut. Approximate scoring blade alignment is made by loosening the scoring arbor set screw , Figure 16, and tapping arbor in the correcting direction. Fine adjustment is made by jack screws accessed through the window in the front of the stand.
FIGURE 14
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FIGURE 16
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MAINTENANCE
Good saw operation requires periodic preventive main­tenance. Keep the inside of the cabinet and trunnion area clean. A stiff brush will remove sawdust before it cakes and pitch or gum is easily removed with a com­mercial solvent or with a good oven cleaner. To ac­complish this, remove the table by removing the three mounting screws and exposing the working mecha­nisms of the saw. After cleaning the tilting and raising worm and worm gear segments and the trunnions, grease these three areas with a good grade non-hard­ening grease such as Fiske Company "Lubriplate."
Check periodically for excessive end play in the tilting and raising mechanism and in the saw arbor and re­adjust as required.
Check periodically for belt tension and wear . Read­just or replace belt as required.
For best results, the table surface must be kept clean and free of rust. Although some users prefer a wax coating, white talcum powder applied with a black­board eraser rubbed in vigorously once a week will fill casting pores and form a moisture barrier. This method provides a table top that is slick and allows rust rings to be easily wiped from the surface. Also, unlike wax pickup, talcum powder will not stain wood or mar finishings.
INSTRUCTIONS & PROCEDURES FOR CIRCULAR SAW OPERATIONS
GENERAL INSTRUCTIONS
1. Familiarize yourself with the location and op­eration of all controls and adjustments and the use of accessories such as the miter gauge and rip fence.
2. Serious injury can result from kickbacks which occur when a work piece binds on the saw blade or binds between the saw blade and rip fence or other fixed object. This binding can cause the work piece to lift up and be thrown toward the operator. Listed below are the conditions which can cause kickbacks:
a. Confining the cutoff piece when cross
cutting or ripping.
b. Releasing the work piece before complet­ing the operation or not pushing the work piece all the way past the saw blade.
c. Not using the splitter when ripping or not maintaining alignment of the splitter with the saw blade.
d. Using a dull saw blade.
e. Not maintaining alignment of the rip fence
so that it tends to angle toward rather than away from the saw blade front to back. NOTE: Caution decal on guard and splitter as­sembly.
f. Applying feed force when ripping to the cut­off (free) section of the work piece instead of the section between the saw blade and fence. Use push sticks or push blocks, Figure 17, for nar­row, thin, or short work.
g. Ripping wood that is twisted (not flat), or does not have a straight edge, or a twisted grain.
FIGURE 17
3. T o minimize or prevent injury from kickbacks: a. Avoid conditions listed above. b. Wear a safety face shield, goggles, or
glasses.
c. Do not use the miter gauge and rip fence
in the same operation unless provision is made by use of a facing board on the fence so as to allow the cutoff section of the workpiece to come free before the next cut is started (See pg. 13 for instruction on cross-cutting).
d. Check the operation of the anti-kickback
pawls before starting a cut. If the pawls do not stop the reverse motion of a workpiece, resharpen all the points.
e. Where possible, keep your face and body
out of line with potential kickbacks including when starting or stopping the machine.
4. Dull, badly set, improper , or improperly filed
cutting tools and cutting tools with gum or resin ad­hering to them cause many of the tilting arbor saw accidents. Never use a cracked saw blade. The use of a sharp, well maintained, and correct cutting tool for the operation will help to avoid injuries.
5. Support the work properly and hold it firmly
against the gauge or fence. Use a push stick or push block when ripping short, narrow (6" width or less), or thin work. Use a push block or miter gauge hold­down when dadoing or molding.
6. For increased safety in crosscutting, use an
auxiliary wood facing attached to the miter gauge us­ing the holes provided, Figure 18.
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FIGURE 18
7. Never use the fence as a length stop when crosscutting. Do not hold on to, or touch, the free end or cutoff section of a workpiece. On thru sawing op­erations, the cutoff section must NOT be confined.
8. Always keep your hands out of the line of the saw blade and NEVER reach back of the cutting blade with either hand to hold the workpiece.
9. Bevel ripping cuts should always be made with the fence on the right side of the saw blade so that the the blade tilts away from the fence and minimizes the possibility of the work binding and the resulting kick­back.
10. Use the miter gauge on the right-hand side of the saw blade when doing miter or compound miter cuts to provide more hand clearance and safety .
RIP SA WING
1. Ripping is a sawing process where the work piece is fed with the grain into the saw blade using the fence as a guide and a positioning device to ensure the desired width of cut, Figure 19.
Never rip freehand or use the miter gauge in combi­nation with the fence. Never rip workpieces shorter than the saw blade di­ameter . Never reach behind the blade with either hand to hold down or remove the cutoff piece with the saw blade rotating.
2. Always use the saw guard, splitter and kick­back pawls. Make sure the splitter is properly aligned. When wood is cut along the grain, the kerf tends to close and bind on the blade and kickbacks can occur . NOTE: A caution decal is inst alled on the guard and splitter assembly warning of the hazard of misalign­ment (see pg. 8 for alignment instructions).
3. The rip fence should be set for the width of the cut by using the scale on the front rail or by mea­suring the distance between the blade and fence. S tand out of line with the saw blade and workpiece to avoid sawdust and splinters coming off the blade and a kickback, if one should occur.
4. If the work piece does not have a straight edge, nail an auxiliary straight edged board on it to provide one against the fence. To cut properly, the board must make good contact with the table. If it is warped, turn the hollow side down.
5. In ripping, use one hand to hold the board down against the fence or fixture, and the other to push it into the blade between the blade and the fence. If the workpiece is narrow (less than 6") use a push stick or push block. Never push in a location such that the pushing hand is in line with the blade. Move the hand serving as a holddown a safe distance from the blade as the cut nears completion. For very nar­row ripping where a push stick cannot be used, use a push block or auxiliary fence. Always push the workpiece completely past the blade at the end of a cut to minimize the possibility of a kickback.
6. When ripping long boards, use a support at the front of the table and a support or "tailman" at the rear as shown in Figure 20.
FIGURE 19
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CAUTION: Before starting a ripping cut, be sure the fence is clamped securely and aligned properly.
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FIGURE 20
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7. For work shorter than 12" or narrower than 6", use a push stick or block to push it through between the fence and the saw blade.
8. Never use the rip fence beyond the point where the carriage is flush with the end of the rails.
9. Have the blade extend about 1/8" above the top of the workpiece. Exposing the blade above this point can be hazardous.
RESAWING
1. Resawing is a ripping operation in which thick boards are cut into thinner ones. Narrow boards up to 3" can be resawed in one pass. Wider boards up to 6" must be resawed in two passes.
2. In resawing wider boards, adjust the blade height so as to overlap the two cuts by 1/2" as shown in Figure 21. T oo deep a first cut can result in binding and possible kickbacks on the second cut. Always use the same side of the board against the fence for both cuts.
FIGURE 22
2. For 90 degree crosscutting, most operators
prefer to use the left-hand miter gauge slot as shown in Figure 22. When using it in this position, hold the workpiece against the gauge with the left hand and use the right hand to advance the workpiece. When using the right hand slot for miter and compound cross­cutting so that the blade tilts away from the gauge, the hand positions are reversed.
3. When using the miter gauge, the workpiece
must be held firmly and advanced smoothly at a slow rate. If the workpiece is not held firmly , it can vibrate causing it to bind on the blade and dull the saw teeth.
4. T o improve the effectiveness of the miter gauge
in crosscutting, some users mount an auxiliary wooden extension face (with a glued-on strip of sandpaper) to the miter gauge as shown in Figure 23.
FIGURE 21
CROSSCUTTING
1. The sawing process where the workpiece is fed cross grain into the saw blade using the miter gauge to support and position the workpiece is called cross­cutting, Figure 22. Crosscutting should never be done freehand nor should the fence be used as an end stop unless an auxiliary block is clamped to the front of the blade area such that the cutoff piece comes free of the block before cutting starts. Length stops should not be used on the free end of the workpiece in the cutoff area. Do NOT crosscut workpieces shorter than 6". Before starting a cut, be sure the miter gauge is securely clamped at the desired angle. Hold the workpiece firmly against the table and back against the miter gauge. Always use the saw guard and splitter and make sure the splitter is properly aligned.
FIGURE 23
5. Provide auxiliary support for any workpiece
extending beyond the table top with a tendency to sag and lift up off the table.
6. S top rods can be used in the holes provided
in the miter gauge for repetitive work of equal length. Do not use a stop rod on the free end of a workpiece. It should be used on the side of the miter gauge oppo­site the saw blade.
7. Have the blade extend about 1/8" above the
top of the workpiece. Exposing the blade above this point can be hazardous.
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BEVEL & MITER OPERATIONS
1. A bevel cut is a special type of operation where the saw blade is tilted at an angle less than 90 de­grees to the table top. Operations are performed in the same manner as ripping or crosscutting except the fence or miter gauge should be used on the right­hand side of the saw blade to provide added safety in avoiding a binding action between the saw blade and the table top. When beveling with the miter gauge, the workpiece must be held firmly to prevent creeping.
2. Crosscuts made at an angle to the edge of the workpiece are called miters. Set the miter gauge at the required angle, lock the miter gauge, and make the cut the same as a normal crosscut except the workpiece must be held extra firmly to prevent creep­ing.
3. Have the blade extend only 1/8" above the top of the workpiece. Exposing the blade above this point can be hazardous.
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TROUBLE-SHOOTING for 74A Table Saw
PROBLEM POSSIBLE CAUSE SOLUTION
Excessive Vibration. 1. Tilt or raising clamp knobs not tightened. 1. Tighten knobs.
2. Blade out of balance. 2. Change blade.
3. Bad motor. 3. Replace motor .
4. Loose arbor or motor sheave. 4. Tighten set screws.
Cuts out-of-square when 1. Mitre gauge out of adjustment. 1. Reset stops and pointer. crosscutting. 2. Mitre slot misaligned. 2. Realign table.
Motor stalls or workpiece 1. Excessive feed. 1. Reduce feed. binds or burns. 2. Bad motor. 2. Replace motor.
3. Dull or incorrect blade. 3. Replace blade.
4. Mitre slot misaligned. 4. Realign mitre slot.
5. Fence misalignment. 5. Realign fence.
Cuts not true at 90 or 45 1. Stop screws not set properly. 1. Readjust stop screws. degrees.
Tilt or saw raising 1. Lock knob not released. 1. Loosen lock knob. handwheels difficult to turn. 2. Worm and worm gear segment caked 2. Clean and re-grease.
with sawdust and pitch.
3. Worm and worm gear segment out of 3. Realign worm and worm alignment. gear segment.
Motor overheats. 1. Motor overloaded. 1. Correct overload condition
such as reducing the feed rate.
2. Improper cooling of motor. 2. Clean sawdust from fan and duct areas of motor.
Motor starts slowly or fails 1. Low voltage. 1. Request voltage check to come up to full speed. from power company and
correct low voltage condition.
2. Centrifugal switch not operating. 2. Replace switch.
3. Bad motor. 3. Replace motor .
Motor fails to develop full 1. Power line overloaded. 1. Correct overload condition. power. 2. Undersize wires in supply system. 2. Increase supply wire size.
3. Low voltage. 3. Request voltage check
from power company and correct condition.
4. Bad motor. 4. Replace motor .
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FEATHER BOARD CONSTRUCTION
The Feather Board is to be made of straight grain hardwood approximately 1" thick and 4" to 8" wide according to the size of the machine. The length should be developed in accordance with its intended use. Feather Boards can be fastened to the table or rip fence by the use of "C" clamps. Drilled and tapped holes in the table top allow for the use of wing nuts and washers as a method of clamping. Provide slots in the Feather Board for adjustments if this method of clamping is used. Figure 24 shows a method of attaching and use of Feather Boards as a vertical comb. The horizontal application is essentially the same except the attachment is to the table top.
FIGURE 24
FILLER PIECE CONSTRUCTION
PUSH STICK & PUSH BLOCK CONSTRUCTION
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OPTIONAL ACCESSORIES
2195043 Accu-Fence and rail system for ripping 50" to right and 12" to left of saw blade 2195048 Accu-Fence assembly only 22501 13 Blade guard and splitter assembly 2328023 T able insert 2328024 Dado insert 2389002 Special cast iron extension wing kit 2402006 Accu-Fence, side panel replacement kit 2440020 Accu-Fence, rear lock assembly 2471015 Mitre gauge 6284600 T enoning jig
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PARTS LIST: Stand Assembly (Model 74A)
No. Part No. Description Quantity
1 3104303 Motor Cover.............................................................................................................1
3 2759042 Stand Assembly (Weldment)...................................................................................1
2136002 Door Assembly (Items 5 & 6) ..................................................................................1
5 6440003 Door Latch ..............................................................................................................1
6 3136018 Dust Removal Door .................................................................................................1
7 3186005 11" Round Extension...............................................................................................2
2328025 Insert Assembly (Items 8 & 20)...............................................................................1
8 3328076 T able insert .............................................................................................................1
12 3604029 Saw Tilting Pointer ..................................................................................................1
14 3684274 Scale ......................................................................................................................1
16 3797425 Table .......................................................................................................................1
18 6708012 Round Head Machine Screw , #8-32 X 1/4................................................................1
19 6746023 Hex W asher Head Screw, 1/4-20 X 5/8....................................................................2
20 6714272 Socket Set Screw (Nylok), 1/4-20 x 1/4 Lg (Pkg. of 6) ............................................1
22 6716031 Hex Head Cap Screw , 3/8-16 x 1 ............................................................................3
23 6746001 Pan Head Self-Tapping Screw, 6 X 1/4.....................................................................2
24 6861300 Medium Lock W asher , 3/8 ......................................................................................3
25 6515001 Hex Nut, 5/16-18.....................................................................................................2
26 6716081 Square Head Set Screw , 3/8-16 x 1-1/2 ..................................................................2
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Stand Assembly (Model 74A)
19
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PARTS LIST: Arbor (Model 74A)
No. Part No. Description Quantity
2025070 Bearing Arm Assembly............................................................................................1
1 3025265 Bearing Arm ............................................................................................................1
2 6716003 Socket Set Screw, 3/8-16 X 3/8 .............................................................................1
3 3773325 Stud, 1/2-13 X 2-5/8 Double End .............................................................................1
4 6716006 Socket Set Screw, 3/8-16 X 1-1/4............................................................................1
5 6716081 Square Head Set Screw, 3/8-16 x 1-1/2 ..................................................................1
6 6516009 Jam Nut, 3/8-16 ......................................................................................................3
2024020 Arbor Assembly, (Items 7 and 9 thru 12 & 54) .........................................................1
2024019 Arbor Assembly (Items 7 thru 54)............................................................................1
7 3838007 Saw Arbor Collar .....................................................................................................2
8 6420002 Key, #608 Woodruff #13..........................................................................................2
9 6060010 Double Seal Ball Bearing, 205NPP .........................................................................2
10 6670005 Retaining Ring, #5100-100 ......................................................................................1
1 1 3737215 Bearing Sp acer .......................................................................................................1
12 6863005 Washer...................................................................................................................1
13 3717167 Arbor Sheave ..........................................................................................................2
14 6715013 Steel Set Screw , 5/16-18 X 3/8................................................................................2
15 3237034 Segment Worm Gear..............................................................................................1
16 6861301 Flat W asher, 3/8 .....................................................................................................2
17 6861300 Spring Lock Helical W asher , 3/8 .............................................................................2
18 6716032 Hex Head Screw , 3/8-16 X 1-1/2..............................................................................2
2865004 Saw Raising Worm Assembly, (Items 19, 20 & 21) .................................................1
19 3865001 Saw Raising & Tilting Worm....................................................................................1
20 3701027 Saw Raising Worm Shaft ........................................................................................1
21 6626031 Spring Pin, 3/16 X 1-1/8...........................................................................................1
2271008 Handwheel Assembly , (Items 23, 24 & 53) ..............................................................1
23 6350032 Handle Assembly....................................................................................................1
24 3271039 Handwheel, 8 X 7/8 .................................................................................................1
2440009 Raise & Tilt Lock Assembly, (Items 25 & 26) ..........................................................1
25 358301 1 Saw Raise & Tilting Locking Pin .............................................................................1
26 3406018 Black Phenolic Knob, .382, #801............................................................................1
27 6716087 Square Head Set Screw , 3/8-16 X 2.0 .....................................................................1
29 371 1005 Saw Arm Pivot Shaft ...............................................................................................1
30 6526005 Jam Nut, 1"-8 R.H...................................................................................................1
32 3090012 Dust Chute..............................................................................................................1
33 6714127 Hex Head Screw , 1/4-20 X 1/2.................................................................................2
34 6861 100 Spring Lock Helical Washer , 1/4 .............................................................................2
35 3480015 Motor Mount ...........................................................................................................1
36 6718017 Hex Head Cap Screw , 1/2-13 X 1-3/4 ......................................................................1
37 6861501 Flat W asher, 1/2 .....................................................................................................1
38 6861500 Spring Lock Helical W asher , 1/2 .............................................................................1
39 6861901 Flat W asher, 3/4 .....................................................................................................2
40 3096004 Saw Raising Collar..................................................................................................1
41 6716031 Cup Point Socket Head Screw , 5/16-18 X 1/4..........................................................2
43 6716031 Hex Head Screw , 3/8-16 X 1....................................................................................4
44 6861300 Spring Lock Helical W asher , 3/8 .............................................................................4
46 6715016 Cup Point Socket Head Set Screw , 5/16-18 X 5/16 .................................................2
47 6077169 V ee Belt, 3VX250 (matched 3 required)...................................................................3
51 6578003 Hex Nut, 3/8-16" .....................................................................................................1
52 6670092 External Ret aining Ring, 5107-112...........................................................................1
53 6715013 Socket Head Set Screw..........................................................................................1
54 3700124 Saw Arbor Shaft ......................................................................................................1
6472335 Motor, 5 HP, 1 Ph, 230V..........................................................................................1
6472307 Motor, 5 HP, 3 Ph ....................................................................................................1
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PARTS LIST: Arbor (Model 74A)
No. Part No. Description Quantity
6472504 Motor, 7.5 HP, 3 Ph,................................................................................................1
6470506 Scoring Motor , 1/2 HP, 3 Ph, 230/460V ...................................................................1
6470505 Scoring Motor , 1/2 HP, 1 Ph, 230V..........................................................................1
6472327 Motor, 5 HP, 3 Ph, 200V..........................................................................................1
55 6716101 Socket Set Screw, 3/8-16 x 1 .................................................................................1
56 6760078 Socket Set Screw, #10-32 x 3/8..............................................................................1
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Arbor (Model 74A)
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PARTS LIST: Mitre Gauge Assembly (Model 74A)
No. Part No. Description Quantity
2471015 Mitre Gauge Assembly (Items 1 thru 15) .................................................................1
1 3044053 Mitre Gauge Bar......................................................................................................1
2 3230038 Mitre Gauge ............................................................................................................1
3 3604035 Mitre Gauge Pointer ................................................................................................1
4 3761001 Stop Pin..................................................................................................................1
5 3841202 Mitre Gauge Bar Washer ........................................................................................1
6 6506001 Hex Nut, 6-32..........................................................................................................3
7 6623012 Dowel Pin, 1/4 X 1...................................................................................................1
9 6706015 Fill. Head Machine Screw , 6-32 X 5/8 ......................................................................3
11 6714053 Flat Head Cap Screw , 1/4-20 X 3/8..........................................................................1
12 6861 101 Flat Plain Washer , 1/4 ............................................................................................1
13 3695221 Locking Screw , 1/4 X 3-3/8......................................................................................1
14 3268050 Mitre Gauge Handle Knob.......................................................................................1
15 3055435 Pointer Block..........................................................................................................1
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PARTS LIST: Trunnion (Model 74A)
No. Part No. Description Quantity
2271008 Handwheel Assembly , 8" Diameter..........................................................................1
1 6350032 Handle Assembly ....................................................................................................1
3 3271039 Handwheel, 8" Diameter..........................................................................................1
2440009 Saw Raising & T ilting Cup Point Lock Assembly (Items 4 & 5)................................1
4 3583011 Locking Pin.............................................................................................................1
5 3406018 Knob .......................................................................................................................1
2063017 Saw T ilting Bracket Assembly (Items 6 thru 14) ......................................................1
2865006 Saw T ilting W orm Assembly (Items 6 thru 8)...........................................................1
6 3865001 Saw Raising & Tilting Worm....................................................................................1
7 3701026 Saw Tilting Shaft .....................................................................................................1
8 6626031 Spring Pin, 3/16 X 1-1/8...........................................................................................1
9 3096244 Collar ......................................................................................................................1
10 3065006 Saw Tilting Pivot Bracket ........................................................................................1
1 1 6861901 Flat Nylatron Washer E12, 3/4 I.D. .........................................................................1
12 6420002 Woodruff Key #607 (Locking) ..................................................................................1
13 6715016 Cup Point Socket Set Screw , 5/16-18 X 1/4" (Collar)...............................................2
14 6064002 NICE Thrust Bearing #607.......................................................................................1
15 3810039 Trunnion Housing ....................................................................................................1
16 3810023 Front & Rear Trunnion.............................................................................................2
17 3700090 Splitter Support Shaft, 1".........................................................................................1
18 6715039 Hex Head Cap Screw , 5/16-18 X 1-3/4.....................................................................2
19 3750010 S plitter ....................................................................................................................1
20 6716082 Square Head Set Screw , 3/8-16 X 2-1/2" (S plitter) ...................................................1
21 6716031 Hex Head Cap Screw , 3/8-16 X 1" (45 deg. S top) ....................................................1
22 6516009 Hex Jam Nut, 3/8-16 ...............................................................................................2
23 371 1005 Saw Arm Pivot Shaft ...............................................................................................1
24 6578003 Hex Flexloc Self-Locking Nut, 1-1/8 - 12 .................................................................1
25 6670092 External Retaining Ring...........................................................................................1
26 3690232 Adjusting Screw , 3/4-16 X 1-1/2...............................................................................1
27 6572005 Hex Jam Nut, 3/4-16 ...............................................................................................1
28 6516001 Hex Nut, 3/8-16.......................................................................................................1
29 6861309 Flat Plated Washer, 3/8 ..........................................................................................1
30 6716039 Hex Head Cap Screw , 3/8-16 X 1-1/4 ......................................................................2
31 6861300 Lock W asher, 3/8....................................................................................................2
32 6861301 Flat W asher, 3/8 .....................................................................................................2
33 6715013 Knurled Socket Set Screw , 5/16-18 X 3/8................................................................1
34 3604029 Pointer ....................................................................................................................1
35 6708012 Round Head Machine Screw , #8-32 X 1/4................................................................1
36 6716081 Square Head Set Screw, 3/8-16 X 1-1/2 ..................................................................1
37 6760078 Socket Set Screw , 10-32 X 3/8................................................................................1
38 6716195 Socket Set Screw , 3/8-16 X 1-1/2............................................................................1
39 6861300 Lock W asher, 3/8....................................................................................................1
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Trunnion (Model 74A)
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PARTS LIST: Scoring Assembly (Model 74A)
No. Part No. Description Quantity
2025070 Bearing Arm Assembly............................................................................................1
281001 1 Trunnion Assembly..................................................................................................1
1 3810039 Trunnion Housing ....................................................................................................1
2 3025084 Bearing Scoring Arm ...............................................................................................1
3 3711008 Pivot Shaft ..............................................................................................................1
5 6715162 Socket Set Screw, 5/16-18 X 5/16...........................................................................1
6 6716079 Square Head Set Screw, 3/8-16 x 1 ........................................................................1
7 6516009 Hex Jam Nut, 3/8-16 ...............................................................................................1
2024014 Scoring Blade Arbor Assembly................................................................................1
9 3526213 Hex Nut, M22 X 2.5 L.H. .........................................................................................1
10 3837048 Arbor Scoring Washer.............................................................................................1
1 1 6060009 Single Row Con. Ball Bearing 20 X 47 X 14 .............................................................2
12 3735086 Outer Bearing S pacer..............................................................................................1
13 3388071 Scoring S pindle Key , 1/4 X 1/4 X 61 ........................................................................1
14 3716038 Scoring S pindle Sheave, 7M X 2.25.........................................................................1
15 6864004 Bearing Lock W asher , W-04 ...................................................................................1
16 6549004 Bearing Lock Nut, N-04...........................................................................................1
17 3690100 Adjustment Screw Assembly (Raise Scoring Blade) ...............................................1
18 6064000 Bearing, 603 1/4......................................................................................................1
19 3406017 Knob.......................................................................................................................1
21 6714004 Knurl Socket Set Screw, 1/4-20 X 1/4 .....................................................................4
20 3598049 Protector Plug.........................................................................................................4
22 3063302 Motor Plate Mounting Bracket.................................................................................1
23 6716032 Hex Head Cap Screw , 3/8-16 x 1-1/2 ......................................................................3
25 6861200 Lock W asher , 5/16..................................................................................................3
26 3064459 Motor Plate Bracket................................................................................................1
27 6720038 Socket Head Shoulder Screw , .750 Dia. x 2-1/4 Lg Shoulder ..................................1
28 6520009 Flex Lock Nut, 5/8-1 1..............................................................................................2
29 6861901 Nylatron W asher , 49/64 X 1 X 1/16 ..........................................................................2
30 3716039 Scoring Motor Sheave, 7M X 2.25 ...........................................................................1
31 6714009 Cup Point Socket Set Screw, 1/4-20 X 1/2 ..............................................................2
32 6077165 Belt, 7M950 ............................................................................................................1
33 6714025 Socket Head Cap Screw, 1/4-20 X 7/8.....................................................................4
36 6080139 Carbide Tipped Scoring Blade, 100mm X 22mm Bore
Adjustable Kerf from 2.8mm TO 3.6mm ..................................................................1
37 3700120 Scoring Blade Shaft ................................................................................................1
38 6568009 Jam Nut, 1/2-20 ......................................................................................................2
39 3096109 Collar ......................................................................................................................2
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Scoring Assembly (Model 74A)
27
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PARTS LIST: Splitter & Guard Assembly (Model 74A)
No. Part No. Description Quantity
2250154 Splitter & Guard Assembly (Items 1 thru 23)............................................................1
1 3750010 Splitter ....................................................................................................................1
2 3044306 Splitter Bar..............................................................................................................1
3 6714113 Round Head Machine Screw, 1/4-20 X 1..................................................................4
4 3736012 Spacer ....................................................................................................................4
5 6861100 Lock Pin Washer, 1/4..............................................................................................4
6 6514001 Hex Nut, 1/4-20.......................................................................................................4
7 6626039 Spring Pin, 1/4 X 5/8 ...............................................................................................1
8 3581005 Anti-Kickback Pawl.................................................................................................2
9 6716138 Button Head Cap Screw , 3/8-16 X 5/8 .....................................................................1
10 6516020 Flex Lock Nut (Sh.) 3/8-16 ......................................................................................1
11 3720209 Guard Shield ...........................................................................................................1
12 6710032 Round Head Machine Screw, 10-24 X 1/4................................................................2
13 3720208 Front Shield ............................................................................................................1
14 3055094 Pivot Block..............................................................................................................1
15 6710030 Flat Head Machine Screw, 10-24 X 1/4....................................................................2
16 6626032 Spring Pin, 3/16 X 1-1/4...........................................................................................1
17 6626049 Spring Pin, 3/8 X 2 ..................................................................................................1
18 325011 1 Blade Guard ............................................................................................................2
19 3025073 Pivot Arm ................................................................................................................4
20 6714192 Flat Head Socket Screw, 1/4-20 X 7/8.....................................................................8
21 3070108 Pivot Bushing ..........................................................................................................8
22 3838015 Pivot Washer ..........................................................................................................8
23 6514012 Flex Lock Nut (Sh.)1/4-20 .......................................................................................8
2787008 10" Rear Splitter Support Assembly (Items 24 thru 32)............................................1
24 3700090 Unthread Splitter Support Shaft...............................................................................1
25 3776050 Rear Splitter Support...............................................................................................1
26 6715034 Hex Head Cap Screw, 5/16-18 X 1-1/2.....................................................................1
27 6861200 Lock Washer, 5/16..................................................................................................1
28 3690232 Adjusting Screw......................................................................................................1
29 6572005 Hex Nut, 3/4-16.......................................................................................................1
30 6716136 Hex Head Cap Screw, 3/8-16 X 3/4 .........................................................................1
31 6861301 Flat Washer, 3/8 .....................................................................................................1
32 6572005 Jam Nut, 3/4-16 ......................................................................................................1
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Splitter & Guard Assembly (Model 74A)
29
Page 30
PARTS LIST: Optional Table Extensions (Model 74A)
No. Part No. Description Quantity
2423001 Extension Leg Assembly (Items 3 thru 9)................................................................1
1 3186004 11" Square End Extension T able .............................................................................1
2 3186006 25" Round End Extension T able..............................................................................1
3 2423001 Inner Weldment Leg Assembly................................................................................1
4 3186009 Outer Leg Extension ...............................................................................................1
5 6716031 Hex Head Screw, 3/8-16 X 1...................................................................................1
6 6715036 Hex Head Screw, 5/16-18 X 5/8...............................................................................2
7 6515001 Hex Steel Nut, 5/16-18............................................................................................2
8 6861200 Lock Washer , 5/16..................................................................................................2
9 6861201 Flat Washer , 5/16 ...................................................................................................2
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ELECTRICAL SCHEMATIC: 74A Scoring Saw
SINGLE PHASE
MAGNETIC STARTERS
Single Phase Controls
starter overload
motor size contactor relay 3HP- 230V 6816266 6659052
5HP- 230V 6816269 6659053
Three Phase Controls
5HP - 230V 6816266 6659051 5HP - 460V 6816262 6659049
7.5 - 230V 6816268 6659053
7.5 - 460V 6816265 6659050
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ELECTRICAL SCHEMATIC 74A Scoring Saw
THREE PHASE
32
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33
Page 34
34
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T o order parts or reach our service dep artment, please call our toll-free number between 8:00 a.m. and 4:30 p.m. (CST), Monday through Friday . Having the Model Number and Serial Number of your machine available when you call will allow us to serve you quickly and accurately . Locating the stock number of the part(s) required from your parts manual will also expedite your order .
Phone No.: (800) 274-6848 Fax No. (800) 274-6840 If you are calling from Canada, please call 800-238-4746
E-mail: powermatic@wmhtoolgroup.com Website: www.powermatic.com
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06/02
WMH T ool Group
P.O. Box 1349
Auburn, WA 98071-1349
Phone: (800) 274-6848 Fax: (800) 274-6840
E-mail: powermatic@wmhtoolgroup.com
Website: www .powermatic.com
C
POWERMA TIC ALL RIGHTS RESERVED
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