Jet Tools Saw PB 150 User Manual

Operating Instructions and Parts Manual  
Portable Horizontal Bandsaws  
Models PB-85 and PB-150  
WMH TOOL GROUP  
2420 Vantage Drive  
Elgin, Illinois 60124  
Ph.: 800-274-6848  
Part No. M-414495  
Revision A1 02/07  
Copyright © WMH Tool Group  
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Table of Contents  
Warranty and Service....................................................................................Error! Bookmark not defined.  
Table of Contents..........................................................................................................................................3  
Warning.........................................................................................................................................................4  
Introduction ...................................................................................................................................................6  
Specifications................................................................................................................................................6  
Features and Terminology ............................................................................................................................7  
Unpacking .....................................................................................................................................................8  
Contents of the Shipping Container ..........................................................................................................8  
Assembly.......................................................................................................................................................9  
Stock Stop .................................................................................................................................................9  
Grounding Instructions................................................................................................................................10  
Extension cords.......................................................................................................................................11  
Adjustments ................................................................................................................................................11  
Stock Stop ...............................................................................................................................................11  
Blade Guide and Bearings ......................................................................................................................11  
Miter Cuts ................................................................................................................................................12  
Bow Depth Stop.......................................................................................................................................12  
Blade Tension..........................................................................................................................................12  
Blade Tracking.........................................................................................................................................12  
Blade Replacement .................................................................................................................................13  
Vise Adjustment.......................................................................................................................................13  
Operation.....................................................................................................................................................14  
Blade Speed and Downfeed Pressure ....................................................................................................15  
Troubleshooting ..........................................................................................................................................16  
Replacement Parts......................................................................................................................................17  
Model PB-85 Bow Assembly...................................................................................................................18  
Model PB-85 Base Assembly..................................................................................................................19  
Parts List: Model PB-85...........................................................................................................................20  
Model PB-150 Bow Assembly.................................................................................................................22  
Model PB-150 Base Assembly................................................................................................................23  
Parts List: Model PB-150.........................................................................................................................24  
Electrical Connections: Model PB-85..........................................................................................................27  
Electrical Connections: Model PB-150........................................................................................................28  
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Warning  
1. Read and understand the entire owners manual before attempting assembly or operation.  
2. Read and understand the warnings posted on the machine and in this manual. Failure to comply with  
all of these warnings may cause serious injury.  
3. Replace the warning labels if they become obscured or removed.  
4. This band saw is designed and intended for use by properly trained and experienced personnel only.  
If you are not familiar with the proper and safe operation of a band saw, do not use until proper  
training and knowledge have been obtained.  
5. Do not use this band saw for other than its intended use. If used for other purposes, WMH Tool  
Group disclaims any real or implied warranty and holds itself harmless from any injury that may result  
from that use.  
6. Always wear approved safety glasses/face shields while using this band saw. Everyday eyeglasses  
only have impact resistant lenses; they are not safety glasses.  
7. Before operating this band saw, remove tie, rings, watches and other jewelry, and roll sleeves up past  
the elbows. Remove all loose clothing and confine long hair. Non-slip footwear or anti-skid floor strips  
are recommended. Do not wear gloves.  
8. Wear ear protectors (plugs or muffs) during extended periods of operation.  
9. Some dust created by power sanding, sawing, grinding, drilling and other construction activities  
contain 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, cement and other masonry products.  
Arsenic and chromium from chemically treated lumber.  
Your risk of exposure 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 face or dust masks that are specifically designed to filter out microscopic  
particles.  
10. Do not operate this machine while tired or under the influence of drugs, alcohol or any medication.  
11. Make certain the switch is in the OFF position before connecting the machine to the power supply.  
12. Make certain the machine is properly grounded.  
13. Make all machine adjustments or maintenance with the machine unplugged from the power source.  
14. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting  
wrenches are removed from the machine before turning it on.  
15. Keep safety guards in place at all times when the machine is in use. If removed for maintenance  
purposes, use extreme caution and replace the guards immediately.  
16. Make sure the band saw is firmly secured to the floor or bench before use.  
17. Check damaged parts. Before further use of the machine, a guard or other part that is damaged  
should be carefully checked to determine that it will operate properly and perform its intended  
function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting  
and any other conditions that may affect its operation. A guard or other part that is damaged should  
be properly repaired or replaced.  
18. Provide for adequate space surrounding work area and non-glare, overhead lighting.  
19. Keep the floor around the machine clean and free of scrap material, oil and grease.  
20. Keep visitors a safe distance from the work area. Keep children away.  
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21. Make your workshop child proof with padlocks, master switches or by removing starter keys.  
22. Give your work undivided attention. Looking around, carrying on a conversation and “horse-play” are  
careless acts that can result in serious injury.  
23. Maintain a balanced stance at all times so that you do not fall or lean against the blade or other  
moving parts. Do not overreach or use excessive force to perform any machine operation.  
24. Use the right tool at the correct speed and feed rate. Do not force a tool or attachment to do a job for  
which it was not designed. The right tool will do the job better and safer.  
25. Use recommended accessories; improper accessories may be hazardous.  
26. Maintain tools with care. Keep blades sharp and clean for the best and safest performance. Follow  
instructions for lubricating and changing accessories.  
27. Make sure the work piece is held securely in the vise before operating. Never use your hand to hold  
the work piece.  
28. Turn off the machine before cleaning. Use a brush or compressed air to remove chips or debris — do  
not use your hands.  
29. Never leave the machine running unattended. Turn off the power and do not leave the machine until it  
comes to a complete stop.  
30. Remove loose items and unnecessary work pieces from the area before starting the machine.  
Familiarize yourself with the following safety notices used in this manual:  
This means that if precautions are not heeded, it may result in minor injury and/or  
possible machine damage.  
This means that if precautions are not heeded, it may result in serious injury or possibly  
even death.  
- - SAVE THESE INSTRUCTIONS - -  
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Introduction  
This manual is provided by WMH Tool Group covering the safe operation and maintenance procedures  
for a JET Model PB-85 or PB-150 Band Saw. This manual contains instructions on installation, safety  
precautions, general operating procedures, maintenance instructions and parts breakdown. This machine  
has been designed and constructed to provide years of trouble free operation if used in accordance with  
instructions set forth in this manual. If there are any questions or comments, please contact either your  
local supplier or WMH Tool Group. WMH Tool Group can also be reached at our web site:  
Specifications  
Model Number......................................................................PB-85....................................................PB-150  
Stock Number ....................................................................414495....................................................414496  
Motor ..................................................................850W, 1Ph, 115V..................................1800W, 1Ph, 115V  
Blade Length (in.)..................................................................52.36......................................................... 68.3  
Blade Width (in.)........................................................................0.5........................................................... 0.5  
Blade Speeds (FPM)...........................................................80-260.....................................................80-260  
Round Capacity at 90° (in.).....................................................3.35........................................................... 5.5  
Round Capacity at 45° (in.).....................................................2.55......................................................... 3.54  
Rectangular Capacity at 90° (in.)............................................3.35........................................................... 5.5  
Rectangular Capacity at 45° (in.)............................................2.36.............................................................. 4  
Miter Angle (deg.)................................................................0 to 45..................................................... 0 to 60  
Overall Dimensions (in.) (L x W x H)................. 33.5 x 14.2 x 25.6................................... 40.1 x 27.6 x 35.4  
Noise Emission, average (dB)................. 82 idling; 84.3 operating......................... 79 idling; 81.2 operating  
Net Weight (lbs.) ........................................................................35.......................................................... 123  
Shipping Weight (lbs.)................................................................42.......................................................... 165  
The above specifications were current at the time this manual was published, but because of our policy of  
continuous improvement, WMH Tool Group reserves the right to change specifications at any time and  
without prior notice, without incurring obligations.  
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Features and Terminology  
Model PB-85 is shown; features are similar for the PB-150.  
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Contents of the Shipping Container  
Unpacking  
(Model PB-85)  
Open shipping container and check for shipping  
damage. Report any damage immediately to  
your distributor and shipping agent. Do not  
discard any shipping material until the band saw  
is assembled and running properly.  
1
1
4
2
1
1
Band Saw  
Work Stop Assembly (with two hex nuts)  
Curved Coasters  
Hex Wrenches (6 and 8mm)  
Owner's Manual  
Compare the contents of your container with the  
following parts list to make sure all parts are  
intact. Missing parts, if any, should be reported  
to your distributor. Read the instruction manual  
thoroughly for assembly, maintenance and  
safety instructions.  
Warranty Card  
(Model PB-150)  
1
1
4
2
1
1
Band Saw  
Work Stop Assembly (with two hex nuts)  
Round Coasters  
Hex Wrenches (6 and 8mm)  
Owner’s Manual  
Warranty Card  
Read and understand the entire contents of this manual before attempting set-up  
or operation! Failure to comply may cause serious injury.  
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Assembly  
The Band Saw should be  
disconnected from power during assembly.  
When transporting the PB-85 band saw, it can  
be lifted by the bow when the cutting arm is  
locked in the down position. See Figure 1. Make  
sure the bow has been lowered all the way and  
the pin has been pushed in to secure the bow  
before transporting.  
Figure 1  
The PB-150 is heavy; use an assistant to help  
lift it by the base.  
Unpainted surfaces of the band saw are treated  
with a rust preventative. Clean all rust protected  
surfaces with a soft cloth dampened with a  
cleaner/degreaser. Do not use an abrasive pad.  
Do not use paint thinner, lacquer thinner,  
gasoline or mineral spirits; these will damage  
painted surfaces.  
The band saw can be operated without securing  
it to a table or workbench, using the four  
coasters provided. Model PB-85: Place the  
band saw on its side and install the four curved  
coasters (Figure 2) by pushing them onto the  
bottom edges as shown. Model PB-150: push  
the four round coasters into the circular  
recesses beneath the cast iron base (Figure 3).  
Figure 2  
(PB-85 shown)  
If you desire to secure the band saw to a table  
or stand, use screws and flat washers through  
the holes in the base (three holes in the PB-85,  
four in the PB-150). 5/16” diameter screws are  
recommended for this. NOTE: Install the stock  
stop before mounting the band saw to a table or  
stand.  
A metal stand (stock no. 414497) designed  
especially for the portable band saw can be  
purchased from your JET distributor.  
Stock Stop  
With the band saw still resting on its side, install  
the stock stop. See Figure 2.  
Figure 3  
(PB-150 only)  
1. Remove the outer hex nut from the stock  
stop rod, and slide the rod into the hole at  
the front of the band saw’s base.  
2. Re-install the outer hex nut onto the threads  
of the rod from inside the base, as shown in  
Figure 2.  
3. Tighten both hex nuts with a wrench.  
4. Slide the stock stop onto the rod and tighten  
the knob (see Figure 7).  
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Grounding Instructions  
This machine must be  
properly grounded while in use to protect the  
operator from electric shock.  
In the event of a malfunction or breakdown,  
grounding provides a path of least resistance for  
electric current to reduce the risk of electric  
shock. This band saw is equipped with an  
electric cord having an equipment-grounding  
conductor and a grounding plug similar to that  
shown in Figure 4. The plug must be inserted  
into a matching outlet that is properly installed  
and grounded in accordance with all local codes  
and ordinances.  
Figure 4  
Do not modify the plug provided. If it will not fit  
the outlet, have the proper outlet installed by a  
qualified electrician.  
Improper connection of the equipment-  
grounding conductor can result in a risk of  
electric shock. The conductor, with insulation  
having an outer surface that is green with or  
without yellow stripes, is the equipment-  
grounding conductor. If repair or replacement of  
the electric cord or plug is necessary, do not  
connect the equipment-grounding conductor to a  
live terminal.  
Check with a qualified electrician or service  
personnel if the grounding instructions are not  
completely understood, or if in doubt as to  
whether the machine is properly grounded. Use  
only three wire extension cords that have three-  
prong grounding plugs and three-pole  
receptacles that accept the machine’s plug.  
115 Volt Operation  
As received from the factory, your band saw is  
ready to operate at 115 volt power, using an  
outlet and a plug that look similar to those  
illustrated in Figure 4.  
For the Model PB-85, a 15 amp circuit is  
recommended, which includes wires rated for at  
least 15 amp, and a 15 amp circuit breaker.  
For the Model PB-150, a 20 amp circuit is  
recommended, which includes wires rated for at  
least 20 amp, and a 20 amp circuit breaker.  
A temporary adapter, which looks like the  
adapter illustrated in Figure 5, may be used to  
connect this plug to a two-pole receptacle as  
shown, if a properly grounded outlet is not  
immediately available. The temporary adapter  
Figure 5  
should only be used until  
a
properly  
grounded outlet can be installed by a  
qualified electrician.  
10  
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Recommended Gauges (AWG) of Extension Cords  
Extension Cord Length *  
The green colored rigid ear, lug or tab,  
extending from the adapter must be connected  
to a permanent ground such as a properly  
grounded outlet box, as shown in Figure 5.  
25  
50  
75  
100 150 200  
Amps  
feet feet feet feet feet feet  
Extension cords  
< 5  
16  
16  
14  
12  
10  
10  
16  
16  
14  
12  
10  
NR  
16  
14  
12  
10  
10  
NR  
14  
12  
12  
10  
12  
If an extension cord is necessary, make sure the  
cord rating is suitable for the amperage listed on  
the machine’s motor plate. An undersized cord  
will cause a drop in line voltage resulting in loss  
of power and overheating.  
5 to 8  
NR  
NR  
NR  
NR  
NR  
8 to 12  
12 to 15  
15 to 20  
21 to 30  
10  
NR  
NR  
NR  
NR  
10  
Use the chart in Figure 6 as a general guide in  
choosing the correct size cord. If in doubt, use  
the next heavier gauge. The smaller the gauge  
number, the heavier the cord.  
NR  
NR  
*based on limiting the line voltage drop to 5V at 150% of the  
rated amperes.  
NR: Not Recommended.  
Adjustments  
Figure 6  
Figure 7  
Figure 8  
Stock Stop  
The stock stop is useful for making multiple cuts  
of the same length. Simply determine the stock  
stop’s position, then place the end of successive  
workpieces against the stock stop. See Figure 7.  
Loosen the knob and slide the stock stop to the  
desired place on the rod. The stock stop can be  
installed on the rod in reverse position, for  
cutting longer workpieces. Always tighten the  
knob before operating.  
Blade Guide and Bearings  
1. Disconnect machine from power source.  
2. The front bearing (B, Figure 8) is mounted  
to an eccentric bushing and is adjustable.  
Loosen the cap nut (A, Figure 8) and rotate  
the front bearing (B, Figure 8) until the  
bearing just lightly contacts the blade. Do  
not pinch the blade.  
3. Re-tighten cap nut (A, Figure 8).  
4. Repeat for the other guide bearing  
assembly.  
5. There should be minimal exposure of the  
blade during cutting operations. Loosen the  
handle (C, Figure 8) and slide the blade  
guide assembly (D, Figure 8) as close to the  
workpiece as possible without interfering  
with the workpiece.  
6. Re-tighten handle.  
11  
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Miter Cuts  
The band saw’s bow can be swiveled for miter  
cuts (up to 45° on the Model PB-85; up to 60°  
on the Model PB-150). Loosen the handle (A,  
Figure 9) and pivot the bow to the desired angle  
on the scale (B, Figure 9).  
Adjustable stops (C, Figure 9) for square and  
45° enable a quick setup.  
NOTE: The handle (A, Figure 9) can be adjusted  
so that it does not interfere with other parts of  
the machine. Simply pull up on the handle,  
rotate it on the pin, then release the handle  
making sure it seats itself properly on the pin.  
Figure 9  
Bow Depth Stop  
The stop (D, Figure 9) controls the depth to  
which the bow falls and prevents the blade from  
contacting the base. This stop has been set at  
the factory. If future adjustment is ever needed,  
loosen the hex nut and turn the screw with a hex  
wrench. When the depth stop is properly set,  
retighten the hex nut.  
Blade Tension  
Rotate the knob (Figure 10) clockwise to tighten  
the blade on the wheels. Do not overtighten.  
The model PB-150 has a tension indicator,  
shown in Figure 11. The tension is correct when  
the indicators are aligned.  
Blade Tracking  
Tracking the blade requires  
that the band saw be operating while the  
back cover is removed. Use extreme caution.  
Figure 10  
Blade tracking has been set at the factory and  
should require no adjustment. Since tracking  
can only be accomplished with the blade moving  
and the back cover removed, it is suggested that  
any blade tracking be accomplished by qualified  
personnel who are familiar with this type of  
adjustment and the dangers associated with it.  
Tracking is set properly when the back of the  
blade, while running, lightly touches the lip of the  
wheel. NOTE: Over-tracking (allowing blade  
back to rub hard against wheel lip) will damage  
the blade wheels and blade.  
Figure 11  
(Model PB-150 only)  
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Blade Replacement  
1. Disconnect machine from power source.  
2. Raise the bow to vertical position.  
3. Loosen the handle (A, Figure 10) and lower  
the blade guide and front cover (Figure 12)  
as far as possible.  
4. Remove the back blade cover by  
unscrewing the knobs.  
5. Release the blade tension by turning the  
blade tension knob (Figure 10) counter-  
clockwise.  
6. Extract the blade from the guides and then  
remove it from around the wheels. (Wear  
gloves when handling blades to prevent  
injury.)  
7. Inspect the new blade for flaws (cracks,  
broken teeth, bending) before installing. The  
blade should be sharp and have a proper  
set. Do not use a faulty saw blade.  
Figure 12  
8. Install the new blade through the guides and  
around the wheels, making sure the teeth  
are pointing in the proper cutting direction.  
See Figure 13.  
9. The blade should be tensioned and tracked  
properly before proceeding. See “Blade  
Tension” and “Blade Tracking” above.  
10. Install the back blade cover and re-connect  
band saw to power source.  
11. The new blade must now be “run in.” A  
carefully run-in blade lasts longer and gives  
better performance. Let the blade run idle  
for about two minutes, then perform two or  
three cuts, preferably on a solid workpiece  
of .40 to .50 millimeter diameter. Use very  
light pressure on the blade, gradually  
increasing pressure with each cut. See  
under “Operation” for cutting procedures.  
Figure 13  
Vise Adjustment  
Place the workpiece against the fixed jaw, and  
rotate the handle (Figure 14) clockwise to move  
the adjustable jaw against the workpiece.  
The vise should be tight enough that round  
stock will not roll. For short workpieces, make  
sure enough of the workpiece is gripped within  
the vise to ensure a stable cut. For very long  
workpieces, use table extensions, roller stands,  
etc. to help support them.  
Figure 14  
13  
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Operation  
The PB-85 and PB-150 Band  
Saws have been designed for dry cutting of  
metals only. Also, do not cut magnesium as  
this may present a fire hazard.  
Support long workpieces with roller stands.  
The start/stop switch contains a safety feature.  
To prevent the band saw from being turned on,  
pull out the section of the switch, as shown in  
Figure 15, and store it in a safe place. To  
operate the band saw, re-insert the switch  
section.  
Figure 15  
The band saw has an internal thermal overload  
to protect the motor, and will activate in case of  
numerous successive cuts or constant  
overfeeding. If the machine suddenly shuts off,  
release the button on the hand grip. Wait  
several minutes for the thermal overload to re-  
set itself, then press the hand grip button again.  
Remove cut or jammed workpieces only when  
the motor has been turned off and blade is at a  
complete standstill.  
General Operating Procedure:  
1. Verify that all guards, covers, etc. are in  
place and in working order, and the blade is  
tensioned properly.  
2. Place workpiece in vise and tighten vise.  
The workpiece should be fitted directly  
between the jaws without adding other  
objects.  
When the workpiece to be cut is a profiled  
section, flat piece or special shape, refer to  
the examples shown in Figure 16 for proper  
clamping positions. The top row shows  
acceptable clamping positions, the bottom  
row shows unacceptable positions.  
Figure16  
If the thickness of the profiled section is very  
thin, a piece which duplicates the profile  
should be fitted inside the workpiece itself,  
to prevent the workpiece being crushed  
between the jaws.  
Never hold a workpiece by  
hand when cutting it. The workpiece should  
be firmly secured in the vise. Never reach  
into the cutting area during cutting  
operations.  
3. Set the blade guide assembly as close to  
the workpiece as possible to prevent excess  
exposure of the blade during the cut.  
4. Flip up the switch to START position.  
Figure 17  
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5. Rotate the speed dial to the desired setting.  
(The dial can also be rotated while the blade  
is running.) Refer to the chart in Figure 17  
for recommended blade speed and  
downfeed rate settings.  
Maintenance  
Disconnect the band saw’s  
plug from the power source before doing any  
maintenance.  
6. Press the blade run button on the hand grip  
to start the saw blade.  
Clean the band saw regularly after each day’s  
work. Clear metal shavings with a suction device  
or brush, not your hands. Do not use  
compressed air.  
7. Use the hand grip to slowly bring down the  
bow until the blade makes light contact with  
the workpiece. Now begin to apply gradual  
pressure on the workpiece and complete the  
cut.  
If the power cord is worn, cut, or damaged in  
any way, have it replaced immediately.  
All of the ball bearings are packed with grease at  
the factory. They require no further lubrication.  
8. Release the blade run button on the hand  
grip and push the bow back up toward  
vertical.  
Lubricate the vise lead screw with a general-  
purpose grease.  
9. If finished with the operation, push the  
STOP button.  
Inspect the blade blocks (Figure 18). If they are  
worn, they should be replaced. Remove the  
blade and replace the blocks.  
Blade Speed and Downfeed Pressure  
The Band Saw offers continual variable speed  
within the specified range; the speed of the  
blade is set using the speed control dial next to  
the switch.  
A general rule is the harder the material being  
cut, the slower the blade speed.  
Also important is the downfeed pressure, which  
is the amount of pressure directed by the blade  
against the workpiece; this is controlled  
manually by the operator using the grip handle.  
Downfeed pressure can be deduced by  
“Recommended Cutting Times” in Figure 17.  
Following are general recommendations for  
speed control dial positions as they relate to the  
various speeds and applications:  
30 m/min. (dial position 1) for stainless steel,  
alloy steel and bearing bronzes.  
45-50 m/min. (dial position 2-3) for mild  
steel, hard brass or bronze.  
60-80 m/min. (dial position 4-6) for soft  
brass, aluminum or other light materials.  
Material chips or shavings are the best indicator  
of proper blade speed and downfeed pressure.  
The ideal chip is thin, tightly curled and warm to  
the touch. Chips that range from golden brown  
to black indicate excessive force. Blue chips  
indicate extreme heat from too high a blade  
speed, which will shorten blade life. Thin or  
powdered chips indicate insufficient downfeed  
rate.  
Figure 18  
If the band saw will be unused for a period of  
time, slacken the blade tension before storage.  
This will help prolong the life of the blade.  
15  
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Troubleshooting  
Trouble  
Probable Cause  
Remedy  
No incoming power.  
Check plug connection.  
Replace fuses.  
Blown electrical panel fuses.  
Motor will not start, or  
stops suddenly.  
Release run button and wait several  
minutes for overload to reset itself.  
Thermal overload has tripped.  
Defective motor, switch, power cable, Qualified electrician/service personnel  
or plug.  
should inspect these items.  
Motor is overheating.  
Downfeed pressure is too fast.  
Check that motor air intakes are clear.  
Reduce downfeed pressure.  
Overload trips  
frequently.  
Motor should be inspected by  
qualified electrician/service personnel.  
Motor is faulty.  
Stand is on uneven surface.  
Saw blade has cracks.  
Adjust stand for even support.  
Replace blade immediately.  
Band Saw vibrates  
excessively.  
Reduce downfeed pressure and blade  
speed.  
Too heavy a cut.  
Adjust the stops to correct positions.  
See page 12. Use an adjustable  
square or protractor to check angle  
settings.  
Setting of the miter stops is not  
correct.  
Miter cuts not  
accurate.  
Blade guides not set correctly.  
Downfeed pressure too great.  
See page 11 for proper adjustment.  
Decrease downfeed pressure.  
Adjust stop until blade is square with  
vise.  
90° angle stop is not set correctly.  
Incorrect blade toothing in relation to  
workpiece.  
Consult the cutting parameters (blade  
teeth, cutting speed) in Figure 17.  
Cuts not square.  
Incorrect adjustment of bearing  
guides and guide assembly.  
Re-adjust these. See page 11.  
Workpiece incorrectly positioned in  
vise.  
Check positioning and clamping in the  
vise.  
Check and correct if needed. See  
page 12.  
Poor blade tension.  
Use proper blade tooth configuration  
for that particular workpiece. See  
chart, Figure 17.  
Blade is dull, or its parameters are not  
right for thickness of piece being cut.  
Finished surface of  
workpiece is rough,  
unsatisfactory.  
Downfeed pressure too great.  
Blade tension too low.  
Reduce downfeed pressure.  
Increase blade tension.  
16  
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Replacement Parts  
Replacement parts are listed on the following pages. To order parts or reach our service department, call  
1-800-274-6848 between 7:30 a.m. and 6:00 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.  
17  
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Model PB-85 Bow Assembly  
(see parts list on pages 20-21)  
18  
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Model PB-85 Base Assembly  
(see parts list on pages 20-21)  
19  
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Parts List: Model PB-85  
Index No. Part No.  
Description  
Size  
Qty  
1 ...............PB85-001.................Body Frame.......................................................... .................................... 1  
2 ...............TS-1540041 .............Hex Nut ................................................................M6............................... 4  
3 ...............TS-1551041 .............Lock Washer........................................................M6............................... 4  
4 ...............PB85-004.................Guide Bracket ...................................................... .................................... 1  
5 ...............PB85-005.................Washer.................................................................12 x 6.2 x 0.8t ............. 4  
6 ...............PB85-006.................Bearing.................................................................607-2RS...................... 8  
7 ...............PB85-007.................Eccentric Shaft..................................................... .................................... 4  
8 ...............PB85-008.................Knob..................................................................... .................................... 1  
9 ...............PB85-009.................Adjustable Bracket (Front) ................................... .................................... 1  
10 .............PB85-010.................Bearing.................................................................624-2RS...................... 2  
11 .............PB85-011.................Pin........................................................................Ø4 x 19.8L .................. 2  
12 .............PB85-012.................Washer.................................................................7.7 x 4.3 x 0.6t ............ 4  
13 .............PB85-013.................Front Blade Cover................................................ .................................... 1  
14 .............TS-1524021 .............Socket Set Screw.................................................M8-1.25x10L............... 1  
15 .............PB85-015.................Carriage Screw ....................................................M6-1x30L.................... 1  
17 .............TS-1534041 .............Phillips Flat Head Machine Screw .......................M5-0.8x10L................. 6  
18 .............PB85-018.................Bracket................................................................. .................................... 2  
19 .............TS-1550041 .............Flat Washer..........................................................M6............................... 1  
20 .............TS-1550061 .............Flat Washer..........................................................M8............................... 2  
21 .............PB85-021.................Knob..................................................................... .................................... 1  
22 .............PB85-022.................Handle.................................................................. .................................... 1  
22-1 ..........PB85-022-1..............Limit Switch.......................................................... .................................... 1  
24 .............414320.....................Blade…………………………………………….52-1/2"x.025"x6/10VT ....... 1  
.................414321.....................Blade…………………………………………..52-1/2"x.025"x10/14VT........ 1  
25 .............PB85-025.................Fixed Bolt ............................................................. .................................... 1  
26 .............PB85-026.................Drive Wheel.......................................................... .................................... 1  
27 .............PB85-027.................Washer.................................................................21.8 x 15.2 -2t............. 1  
27-1 ..........PB85-027-1..............Washer.................................................................21.8 x 15.2 -1t............. 1  
28 .............PB85-028.................Hand Knob........................................................... .................................... 4  
29 .............PB85-029.................Back Blade Cover ................................................ .................................... 1  
32 .............PB85-032.................Tension Bracket................................................... .................................... 1  
33 .............PB85-033.................Slide Dog.............................................................. .................................... 4  
34 .............PB85-034.................Flat Cross Head Screw........................................M5-0.8 x 15L............... 4  
35 .............PB85-035.................Spring................................................................... .................................... 1  
36 .............PB85-036.................Spring................................................................... .................................... 1  
37 .............PB85-037.................Bolt....................................................................... .................................... 1  
42 .............PB85-042.................Shaft..................................................................... .................................... 1  
45 .............PB85-045.................Cable ................................................................... .................................... 1  
46 .............PB85-046.................Motor....................................................................110V ........................... 1  
46-1 ..........PB85-046-1..............Brush.................................................................... .................................... 2  
46-2 ..........PB85-046-2..............Motor Rotor Assembly ......................................... .................................... 1  
46-3 ..........PB85-046-3..............Phillips Pan Head Machine Screw.......................M3.5 x 35L.................. 2  
46-4 ..........PB85-046-4..............Motor Cover ......................................................... .................................... 1  
46-5 ..........TS-1532052 .............Phillips Pan Head Machine Screw.......................M4 x 15L..................... 2  
46-6 ..........PB85-046-6..............Driver Assembly...................................................CF-16(110V)............... 1  
46-7 ..........PB85-046-7..............Separator ............................................................. .................................... 1  
46-8 ..........PB85-046-8..............Fan....................................................................... .................................... 1  
46-9 ..........PB85-046-9..............Bracket................................................................. .................................... 1  
57 .............TS-1503041 .............Socket Head Cap Screw......................................M6-1 x 15L.................. 4  
58 .............PB85-058.................Bearing.................................................................HK0609....................... 2  
59 .............PB85-059.................Washer.................................................................9.9 x 6.1 x 0.5t ............ 3  
60 .............PB85-060.................Gear-A.................................................................. .................................... 1  
61 .............PB85-061.................Bushing ................................................................ .................................... 1  
62 .............PB85-062.................Gear-B.................................................................. ................................... 1  
63 .............PB85-063.................Washer.................................................................11.1 x 8.1 x 0.5t .......... 1  
64 .............PB85-064.................Bearing.................................................................HK0810....................... 1  
66 .............BB-627VV ................Bearing.................................................................627-2RS...................... 1  
20  
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67 .............PB85-067.................Gear-C ................................................................. .................................... 1  
68 .............BB-6202LLU ............Bearing.................................................................6202LLU ..................... 1  
92 .............TS-2361081 .............Lock Washer........................................................M8............................... 6  
93 .............TS-1504041 .............Socket Head Cap Screw......................................M8-1.25 x 20L............. 6  
94 .............PB85-094.................Coaster ................................................................ .................................... 4  
95 .............PB85-095.................Washer.................................................................Ø 20 x 10.3 -2t............ 2  
96 .............TS-1540071 .............Nut........................................................................M10............................. 1  
97 .............PB85-097.................Carriage Screw ....................................................M10-1.5 x 33L............. 1  
98 .............TS-2310142 .............Hex Nut ................................................................M14 x P1.5.................. 2  
99 .............PB85-099.................Stock Stop Rod.................................................... .................................... 1  
100 ...........PB85-100.................Stock Stop Bracket .............................................. .................................... 1  
100-1 ........PB85-101-1..............Hand Knob........................................................... .................................... 1  
100-2 ........TS-1482061 .............Hex Cap Screw....................................................M6-1 x 30L.................. 1  
101 ...........PB85-101.................Angle Limit Adjust ................................................ .................................... 2  
102 ...........TS-1534032 .............Phillips Pan Head Machine Screw.......................M6-1x10L.................... 2  
104 ...........PB85-104.................Angle Gauge........................................................ .................................... 1  
105 ...........PB85-105.................Rivet.....................................................................Ø 3.3 x 6L ................... 2  
107 ...........TS-1505071 .............Socket Head Cap Screw......................................M10-1.5 x 45L............. 1  
108 ...........TS-1540041 .............Hex Nut ................................................................M6............................... 1  
109 ...........TS-1503061 .............Socket Set Screw.................................................M6-1 x 25L.................. 1  
110 ...........PB85-110.................Knob..................................................................... .................................... 1  
111 ...........TS-1550071 .............Washer.................................................................M10............................. 1  
112 ...........PB85-112.................Knob W/Shaft....................................................... .................................... 1  
114 ...........PB85-114.................Position pin........................................................... .................................... 1  
115 ...........PB85-115.................E Retaining Ring..................................................E7................................ 1  
116 ...........PB85-116.................Spring................................................................... .................................... 1  
117 ...........PB85-117.................Washer.................................................................54.8 x 45 x 0.5t ........... 1  
118 ...........PB85-118.................Shaft Bushing....................................................... .................................... 1  
119 ...........PB85-119.................Swivel Arm ........................................................... .................................... 1  
120 ...........TS-1550071 .............Washer.................................................................M10............................. 1  
121 ...........TS-1540071 .............Hex Nut ................................................................M10............................. 1  
122 ...........PB85-122.................Power cable ......................................................... .................................... 1  
123 ...........PB85-123.................Cable Setting Nut................................................. .................................... 1  
124 ...........TS-2284202 .............Phillips Pan Head Machine Screw.......................4 x 20L........................ 2  
126 ...........PB85-126.................Switch Assembly ................................................ .................................... 1  
126-1 ........PB85-126-1..............ON/OFF Switch....................................................HY-18.......................... 1  
126-2 ........PB85-126-2..............Phillips Pan Head Machine Screw.......................3.5 x 35L..................... 3  
131 ...........TS-1540071 .............Hex Nut ................................................................M10............................. 1  
134 ...........PB85-134.................Cable Clamp ........................................................ .................................... 6  
135 ...........TS-1540061 .............Hex Nut ................................................................M8............................... 2  
136 ...........PB85-136.................Clamp................................................................... .................................... 1  
137 ...........PB85-137.................Washer.................................................................Ø 21.8 x 15.2 x 2t ....... 1  
138 ...........1819181...................Bearing.................................................................6002-2RS.................... 2  
139 ...........TS-1514021 .............Socket Head Flat Screw ......................................M6 x 15L..................... 1  
140 ...........PB85-140.................Idler Wheel........................................................... .................................... 1  
141 ...........PB85-141.................Swivel Base.......................................................... .................................... 1  
142 ...........PB85-142.................Vise Base Assembly .......................................... .................................... 1  
142-1 ........TS-1502021 .............Socket Head Cap Screw......................................M5-0.8 x 10L............... 1  
142-2 ........TS-1502041 .............Socket Head Cap Screw......................................M5-0.8 x 15L............... 2  
142-3 ........PB85-142-3..............Vise Sliding Plate................................................. .................................... 1  
142-4 ........PB85-142-4..............Leadscrew............................................................ .................................... 1  
142-5 ........PB85-142-5..............Vise Base............................................................. .................................... 1  
142-6 ........PB85-142-6..............Vise Jaw Bracket ................................................. .................................... 1  
142-7 ........PB85-142-7..............Plastic Bushing .................................................... .................................... 1  
142-8 ........PB85-142-8..............Cover.................................................................... .................................... 1  
142-9 ........TS-1550031 .............Flat Washer..........................................................M5............................... 2  
142-10 ......PB85-142-10............Phillips Pan Head Machine Screw.......................M5-0.8 x 5L................. 2  
160 ...........PB85-160.................Star Washer.........................................................M5............................... 1  
161 ...........TS-1533032 .............Phillips Pan Head Machine Screw.......................M5-0.8 x 10L............... 1  
21  
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Model PB-150 Bow Assembly  
(see parts list on pages 24-26)  
22  
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Model PB-150 Base Assembly  
(see parts list on pages 24-26)  
23  
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Parts List: Model PB-150  
Index No. Part No.  
Description  
Size  
Qty  
1 ...............PB150-001...............Body Frame.......................................................... .................................... 1  
2 ...............TS-1540041 .............Hex Nut ................................................................M6............................... 4  
3 ...............TS-1551041 .............Lock Washer........................................................M6............................... 4  
4 ...............PB150-004...............Guide Bracket ...................................................... .................................... 1  
5 ...............PB85-005.................Washer.................................................................12 x 6.2 x 0.8t ............. 4  
6 ...............PB85-006.................Bearing.................................................................607-2RS...................... 8  
7 ...............PB150-007...............Eccentric Shaft..................................................... .................................... 4  
8 ...............PB150-008...............Knob..................................................................... .................................... 1  
8-1 ............PB150-008-1............Washer.................................................................23 x 8.5 -2................... 3  
9 ...............PB150-009...............Adjustable Bracket (Front) ................................... .................................... 1  
10 .............PB85-010.................Bearing.................................................................624-2RS...................... 2  
11 .............PB150-011...............Pin........................................................................4 x 19.8L..................... 2  
12 .............PB150-012...............Washer.................................................................7.7 x 4.3 x 0.6t ............ 4  
13 .............PB150-013...............Front Blade Cover................................................ .................................... 1  
14 .............PB150-014...............Carriage Screw ....................................................M8 x 38L..................... 1  
15 .............TS-1503021 .............Socket Head Cap Screw......................................M6 x 10L..................... 2  
16 .............PB150-016...............Clamp................................................................... .................................... 7  
17 .............TS-1534041 .............Phillips Flat Head Machine Screw .......................M5x10L....................... 7  
18 .............TS-1540041 .............Hex Nut ................................................................M6............................... 2  
19 .............TS-1482061 .............Hex Cap Screw....................................................M6 x 30L..................... 1  
20 .............PB150-020...............Washer.................................................................27.8 x 20.2 x 1.2t ........ 1  
21 .............PB150-021...............Knob..................................................................... .................................... 1  
21-1 ..........PB150-021-1............Washer.................................................................26 x 10.5-3.................. 1  
22 .............PB150-022...............Handle.................................................................. .................................... 1  
22-1 ..........PB150-022-1............Limit Switch.......................................................... .................................... 1  
23 .............PB150-023...............Connecting Tube.................................................. .................................... 1  
24 .............414322.....................Blade………………………………………..68-1/4x1/2"x.025"x6/10VT....... 1  
.................414323.....................Blade………………………………………68-1/4x1/2"x.025"x10/14VT....... 1  
26 .............PB150-026...............Drive Wheel.......................................................... .................................... 1  
27 .............PB150-020...............Washer.................................................................27.8 x 20.2 x 1.2t ........ 1  
28 .............PB150-028...............Plum handle......................................................... .................................... 6  
29 .............PB150-029...............Back Blade Cover ................................................ .................................... 1  
30 .............PB150-030...............Idler Wheel........................................................... .................................... 1  
31 .............PB150-031...............Washer.................................................................27.8 x 20.2 x 1.6t ........ 1  
32 .............PB150-032...............Tension Bracket................................................... .................................... 1  
33 .............PB150-033...............Slide Dog.............................................................. .................................... 8  
34 .............PB150-034...............Flat Cross Head Screw........................................M5 x 25L..................... 4  
35 .............PB150-035...............Spring...................................................................23 x 12.2 x 1.5t ......... 16  
36 .............PB150-036...............Spring................................................................... .................................... 1  
37 .............PB150-037...............Bolt....................................................................... .................................... 1  
38 .............PB150-038...............Flat Cross Head Screw........................................M8 x 20L..................... 1  
39 .............PB150-039...............Plate..................................................................... .................................... 1  
40 .............BB-6204ZZ...............Bearing.................................................................6204ZZ........................ 2  
41 .............TS-1540071 .............Hex Nut ................................................................M10............................. 2  
42 .............PB150-042...............Shaft..................................................................... .................................... 1  
45 .............PB150-045...............Cable ................................................................... .................................... 1  
46 .............PB150-046...............Motor 110V........................................................... .................................... 1  
46-1 ..........PB150-046-1............Brush.................................................................... .................................... 2  
46-2 ..........PB150-046-2............Motor Rotor Assembly ....................................... .................................... 1  
46-3 ..........PB150-046-3............Flat Cross Head Screw........................................4 x 60L........................ 4  
46-4 ..........PB150-046-4............Motor Cover ......................................................... .................................... 1  
46-5 ..........TS-1532052 .............Phillips Pan Head Machine Screw.......................4 x 15L........................ 2  
46-6 ..........PB150-046-6............Driver TC-16 (110V)............................................. .................................... 1  
46-7 ..........PB150-046-7............Separator ............................................................. .................................... 1  
46-8 ..........PB150-046-8............Fan....................................................................... .................................... 1  
46-9 ..........PB150-046-9............Motor Cover ......................................................... .................................... 1  
46-10 ........TS-2284252 .............Phillips Pan Head Machine Screw.......................M4 x 25L..................... 4  
24  
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46-11 ........PB150-046-11..........Gear Box Cover ................................................... .................................... 1  
47 .............PB150-047...............Phillips Pan Head Machine Screw.......................M5 x 5L....................... 1  
48 .............PB150-048...............Phillips Pan Head Machine Screw.......................M3 x 80L..................... 2  
49 .............TS-1551041 .............Lock Washer........................................................M3............................... 2  
50 .............PB150-050...............Washer................................................................. .................................... 2  
57 .............TS-1503041 .............Socket Head Cap Screw......................................M6 x 16L..................... 2  
57-1 ..........TS-1503091 .............Socket Head Cap Screw......................................M6 x 40L..................... 1  
57-2 ..........TS-1503121 .............Socket Head Cap Screw......................................M6 x 55L..................... 1  
58 .............PB150-058...............Bearing.................................................................HK1212....................... 2  
59 .............PB150-059...............Washer.................................................................18 x 12 x 1t ................. 2  
60 .............PB150-060...............Gear ..................................................................... .................................... 1  
61 .............BB-6200ZZ...............Bearing.................................................................6200ZZ........................ 3  
62 .............PB150-062...............Gear ..................................................................... ................................... 1  
63 .............PB150-063...............Key.......................................................................6 x 6 x 20L .................. 1  
64 .............6293531...................Bearing.................................................................6205-2RS.................... 1  
65 .............PB150-065...............Bushing ................................................................ .................................... 1  
67 .............PB150-067...............Gear ..................................................................... .................................... 1  
70 .............PB150-070...............Tension Indicator ................................................. .................................... 1  
71 .............PB150-071...............Tube..................................................................... .................................... 1  
72 .............PB150-072...............Tension Indicator Plate ........................................ .................................... 1  
73 .............TS-1533032 .............Phillips Pan Head Machine Screw.......................M5 x 10L..................... 2  
74 .............PB150-074...............Shaft Bushing....................................................... .................................... 1  
75 .............PB150-075...............Knob .................................................................... .................................... 2  
76 .............PB150-076...............Handle Rod.......................................................... .................................... 1  
77 .............PB150-077...............Leadscrew............................................................ .................................... 1  
78 .............PB150-078...............Flat Cross Head Screw........................................M8 x 15L..................... 4  
79 .............PB150-079...............Bushing ................................................................ .................................... 1  
80 .............PB150-080...............Pin........................................................................6 x 30L........................ 1  
81 .............PB150-081...............Vise Jaw Bracket ................................................. .................................... 1  
82 .............PB150-082...............Vise Jaw Plate ..................................................... .................................... 1  
83 .............PB150-083...............Vise Jaw Plate ..................................................... .................................... 1  
84 .............PB150-084...............Screw Plate.......................................................... .................................... 1  
91 .............PB150-091...............Swivel Base.......................................................... .................................... 1  
94 .............PB150-094...............Coaster ................................................................ .................................... 4  
95 .............TS-2361081 .............Lock Washer........................................................M8............................... 1  
96 .............TS-1504081 .............Socket Head Cap Screw......................................M8 x 40L..................... 1  
98 .............TS-2310142 .............Hex Nut ................................................................M14 x P1.5.................. 1  
99 .............PB150-099...............Stock Stop Rod.................................................... .................................... 1  
100 ...........PB150-100...............Stop Rod Bracket................................................. .................................... 1  
100-1 ........PB150-100-1............Plum Handle......................................................... .................................... 1  
100-2 ........TS-1482061 .............Hex Cap Screw....................................................M6 x 30L..................... 1  
101 ...........PB150-101...............Angle Margin........................................................ .................................... 1  
102 ...........TS-1534032 .............Phillips Pan Head Machine Screw.......................M6 x 10L..................... 1  
104 ...........PB150-104...............Miter Gauge ......................................................... .................................... 1  
105 ...........PB150-105...............Rivet.....................................................................2 x 6L .......................... 2  
106 ...........PB150-106...............Bushing ................................................................ .................................... 1  
107 ...........TS-1482031 .............Hex Cap Screw....................................................M6 x 15L..................... 1  
108 ...........TS-1540041 .............Hex Nut ................................................................M6............................... 1  
110 ...........PB150-110...............Knob..................................................................... .................................... 1  
111 ...........TS-1550071 .............Washer.................................................................M10............................. 2  
112 ...........PB150-112...............Angle Indicator..................................................... .................................... 1  
113 ...........TS-133032 ...............Phillips Pan Head Machine Screw.......................M5 x 8L....................... 1  
116 ...........PB150-116...............Spring................................................................... .................................... 1  
118 ...........PB150-118...............Shaft .................................................................... .................................... 1  
118-1 ........TS-1503061 .............Socket Head Cap Screw......................................M6 x 25L..................... 3  
118-3 ........TS-1550071 .............Flat Washer..........................................................M10............................. 1  
118-4 ........TS-1505031 .............Socket Head Cap Screw......................................M10 x 25L................... 1  
119 ...........PB150-119...............Swivel Arm ........................................................... .................................... 1  
120 ...........PB150-120...............Washer................................................................. .................................... 2  
122 ...........PB150-122...............Power Cable.........................................................45 x 30 x 4t ................. 1  
123 ...........PB150-123...............Cable Setting Nut................................................. .................................... 1  
25  
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124 ...........TS-2284202 .............Phillips Pan Head Machine Screw.......................4 x 20L........................ 2  
126 ...........PB150-126...............Switch Assembly.................................................. .................................... 1  
126-1 ........PB150-126-1............ON/OFF Switch HY-18........................................ .................................... 1  
126-2 ........5511819...................Phillips Pan Head Machine Screw.......................M5 x 25L..................... 2  
131 ...........PB150-131...............Hex Nut ................................................................M30 x P1.5.................. 1  
132 ...........TS-1540061 .............Hex Nut ................................................................M8............................... 1  
133 ...........PB150-133...............Leadscrew............................................................ .................................... 1  
134 ...........TS-1540061 .............Hex Nut ................................................................M8............................... 1  
140 ...........PB150-140...............Pivot Pin...............................................................6 x 20L........................ 1  
141 ...........TS-1482041 .............Hex Cap Screw....................................................M6 x 20L..................... 1  
142 ...........TS-1540041 .............Hex Nut ................................................................M6............................... 1  
160 ...........PB85-160.................Star Washer.........................................................M5............................... 1  
161 ...........TS-1533032 .............Phillips Pan Head Machine Screw.......................M5 x 10L..................... 1  
26  
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Electrical Connections: Model PB-85  
27  
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Electrical Connections: Model PB-150  
28  
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