Jet JWBS-140S Service manual

Operating Instructions and Parts Manual
14-inch Woodworking Band Saw
Model: JWBS-14OS
WMH TOOL GROUP
2420 Vantage Drive
Elgin, Illinois 60123 Part No. M-708113A
Ph.: 800-274-6848 Revision B 03/06
www.wmhtoolgroup.com Copyright © WMH Tool Group
This Manual is Bookmarked

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WARRANTY AND SERVICE
WMH Tool Group, Inc., warrants every product it sells. If one of our tools needs service or repair, one of our
Authorized Service Centers located throughout the United States can give you quick service. In most cases, any of
these WMH Tool Group Authorized Service Centers can authorize warranty repair, assist you in obtaining parts, or
perform routine maintenance and major repair on your JET®tools. For the name of an Authorized Service Center in
your area call 1-800-274-6848.
MORE INFORMATION
WMH Tool Group is consistently adding new products to the line. For complete, up-to-date product information, check
with your local WMH Tool Group distributor, or visit jettools.com.
WARRANTY
JET products carry a limited warranty which varies in duration based upon the product (MW stands for Metalworking,
WW stands for Woodworking).
WHAT IS COVERED?
This warranty covers any defects in workmanship or materials subject to the exceptions stated below. Cutting tools,
abrasives and other consumables are excluded from warranty coverage.
WHO IS COVERED?
This warranty covers only the initial purchaser of the product.
WHAT IS THE PERIOD OF COVERAGE?
The general JET warranty lasts for the time period specified in the product literature of each product.
WHAT IS NOT COVERED?
Five Year and Lifetime Warranties do not cover products used for commercial, industrial or educational purposes.
Products with Five Year or Lifetime Warranties that are used for commercial, industrial or education purposes revert
to a One Year Warranty. This warranty does not cover defects due directly or indirectly to misuse, abuse, negligence
or accidents, normal wear-and-tear, improper repair or alterations, or lack of maintenance.
HOW TO GET SERVICE
The product or part must be returned for examination, postage prepaid, to a location designated by us. For the name
of the location nearest you, please call 1-800-274-6848.
You must provide proof of initial purchase date and an explanation of the complaint must accompany the
merchandise. If our inspection discloses a defect, we will repair or replace the product, or refund the purchase price,
at our option. We will return the repaired product or replacement at our expense unless it is determined by us that
there is no defect, or that the defect resulted from causes not within the scope of our warranty in which case we will,
at your direction, dispose of or return the product. In the event you choose to have the product returned, you will be
responsible for the shipping and handling costs of the return.
HOW STATE LAW APPLIES
This warranty gives you specific legal rights; you may also have other rights which vary from state to state.
LIMITATIONS ON THIS WARRANTY
WMH TOOL GROUP LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED WARRANTY FOR
EACH PRODUCT. EXCEPT AS STATED HEREIN, ANY IMPLIED WARRANTIES OR MERCHANTABILITY AND
FITNESS ARE EXCLUDED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED
WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
WMH TOOL GROUP SHALL IN NO EVENT BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY,
OR FOR INCIDENTAL, CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE
OF OUR PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
WMH Tool Group sells through distributors only. The specifications in WMH catalogs are given as general information
and are not binding. Members of 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.
JET®branded products are not sold in Canada by WMH Tool Group.

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Table of Contents
WARRANTY AND SERVICE ........................................................................................................................ 2
Table of Contents.......................................................................................................................................... 3
Warnings ....................................................................................................................................................... 4
Specifications ................................................................................................................................................ 6
Shipping Contents......................................................................................................................................... 7
Contents of the Carton .............................................................................................................................. 7
Hardware Bag for Saw Body ..................................................................................................................... 7
Hardware Bag for Stand Assembly ........................................................................................................... 8
Tools Required for Assembly .................................................................................................................... 8
Assembly....................................................................................................................................................... 8
Unpacking and Cleanup ............................................................................................................................ 8
Stand ......................................................................................................................................................... 8
Mounting Bandsaw to Table...................................................................................................................... 9
Mounting the Motor.................................................................................................................................... 9
Mounting the Switch ................................................................................................................................ 10
Cord Clamp ............................................................................................................................................. 10
Upper Blade Guard Assembly................................................................................................................. 11
Table Assembly ....................................................................................................................................... 11
Grounding Instructions ................................................................................................................................ 12
115 Volt Operation................................................................................................................................... 12
230 Volt Conversion ................................................................................................................................ 12
Extension Cords ...................................................................................................................................... 13
Adjustments ................................................................................................................................................ 14
Tilting the Table ....................................................................................................................................... 14
Adjusting 90°Table Stop......................................................................................................................... 14
Changing Blades ..................................................................................................................................... 14
Adjusting Blade Tension.......................................................................................................................... 15
Adjusting Blade Tracking......................................................................................................................... 15
Adjusting Upper Blade Guide Assembly ................................................................................................. 16
Blade Guide Adjustment.......................................................................................................................... 16
Blade Support Bearing Adjustment ......................................................................................................... 16
Optional Accessories .................................................................................................................................. 17
Accessory Blades .................................................................................................................................... 17
Other Accessories ................................................................................................................................... 18
Troubleshooting JWBS-14OS Band Saw ................................................................................................... 19
Parts ............................................................................................................................................................ 19
Ordering Replacement Parts................................................................................................................... 19
Body Assembly (JWBS-14OS Band Saw) ..............................................................................................20
Open Stand Assembly (JWBS-14OS Band Saw) ................................................................................... 24
Electrical Connections................................................................................................................................. 25
115 volt .................................................................................................................................................... 25
230 volt .................................................................................................................................................... 26
The specifications in this manual are given as general information and are not binding. WMH Tool Group
reserves the right to effect, at any time and without prior notice, changes or alterations to parts, fittings,
and accessory equipment deemed necessary for any reason whatsoever.

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Warnings
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. Always use the blade guard on all ''through-sawing'' operations. A through-sawing operation is one in
which the blade cuts completely through the workpiece.
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.

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19. Provide for adequate space surrounding work area and non-glare, overhead lighting.
20. Keep the floor around the machine clean and free of scrap material, oil and grease.
21. Keep visitors a safe distance from the work area. Keep children away.
22. Make your workshop child proof with padlocks, master switches or by removing starter keys.
23. Give your work undivided attention. Looking around, carrying on a conversation and “horse-play” are
careless acts that can result in serious injury.
24. Maintain a balanced stance at all times so that you do not fall into the blade or other moving parts. Do
not overreach or use excessive force to perform any machine operation.
25. 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.
26. Use recommended accessories; improper accessories may be hazardous.
27. Maintain tools with care. Keep saw blades sharp and clean for the best and safest performance.
Follow instructions for lubricating and changing accessories.
28. Make sure the work piece is held firmly against the rip fence or miter gauge as it is fed through the
blade.
29. Turn off the machine before cleaning. Use a brush or compressed air to remove chips or debris — do
not use your hands.
30. Do not stand on the machine. Serious injury could occur if the machine tips over.
31. Never leave the machine running unattended. Turn the power off and do not leave the machine until it
comes to a complete stop.
32. 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.

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Specifications
Model Number.............................................................................................................................JWBS-14OS
Stock Number ...................................................................................................................................708113A
Cutting Capacity (height/in.).......................................................................................................................... 6
Cutting Capacity (width/in.) ...................................................................................................................13-1/2
Minimum Blade Width (in.) ......................................................................................................................... 1/8
Maximum Blade Width (in.) ........................................................................................................................ 3/4
Blade Length (in.)..................................................................................................................................93-1/2
Blade Speed (SFPM) .............................................................................................................................. 3000
Table Size (in.) ..................................................................................................................................... 14x 14
Table Slot Size (DxW/in.) .................................................................................................................. 3/8 x 3/4
Table Height From Floor (in.) ...................................................................................................................... 44
Table Tilt (deg.) ....................................................................................................................... 45 right, 15 left
Dust Port Diameter (in.) ................................................................................................................................ 4
Overall Dimensions (HxWxD/in.) ............................................................................................ 68 x24x 26-1/2
Motor ..................................................................................................3/4HP, 1Ph, 115/230V (prewired 115))
Net Weight (lbs.) ....................................................................................................................................... 161
Shipping Weight (lbs.) ............................................................................................................................... 172
Read and understand the entire contents of this manual before attempting
assembly or operation! Failure to comply may cause serious injury!

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Shipping Contents
Contents of the Carton
01 – Body Assembly (1)
03 – Table (1)
04 – Trunnion Support Bracket (1)
05 – Motor (1)
06 – Switch Box (1)
10 – Upper Support Bracket Post (1)
11 – Lower Support Bracket Post (1)
12 – Upper Blade Guard (1)
13 – Lower Blade Guard (1)
14 – Lock Knobs (2)
15 – Owner's Manual (1)
16 – Hardware Bag for Saw Body (1)
17 – Hardware Bag for Stand (1)
18 – Base Plate (1)
19 – Stand Leg (4)
20 – Short Support Plate (2)
21 – Long Support Plate (2)
22 – Rubber Foot (4)
Hardware Bag for the Saw Body
Contents of the Carton
Hardware Bag for Saw Body
01 – Wire Clip (1)
02 – Pan Head Screw M5x12 (3)
03 – Hex Cap Screw M6x16 (1)
04 – Hex Cap Screw M6x10 (2)
05 – Hex Cap Screw M6x20 (2)
06 – Flat Washer M6x16 (2)
07 – Flat Washer M6x13 (2)
08 – Socket Head Cap Screw M8x25 (2)
09 – Spring Washer M8 (4)
10 – Flat Washer M8x30 (2)
11 – Cord Clamp (1)
12 – Flat Washer M8x18 (4)
13 – Hex Nut M8 (1)
14 – Hex Cap Screw M8x30 (2)
15 – Hex Cap Screw M8x35 (4)
16 – Serrated Hex Flange Nut M8 (4)
17 – Hex Cap Screw M8x80 (1)
18 – Gear Washer M5 (1)

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Hardware Bag for Stand Assembly
01 – Carriage Bolt M8x16 (40)
02 – Serrated Hex Flange Nut M8 (40)
Hardware Bag for Stand Assembly
Tools Required for Assembly
1 Accurate Straight Edge (approximately 2 ft)
1 Cross-point Screwdriver
1 6mm Hex Wrench
1 10mm Box Wrench
1 13mm Box Wrench
Note: Use of sockets and ratchets will speed
assembly time but are not required.
Assembly
Read and understand all
assembly instructions before attempting
assembly! Failure to comply may cause
serious injury!
The required hardware for all assembly on this
machine is found in the Hardware Bag for Stand
Assembly and Hardware Bag for Saw Body.
Unpacking and Cleanup
1. Finish removing all contents from the
shipping carton. Do not discard the carton or
packing material until the bandsaw is
assembled and is running satisfactorily.
2. Inspect the contents for shipping damage.
Report damage, if any, to your distributor.
3. Compare the contents of the shipping carton
with the contents list in this manual. Report
shortages, if any, to your distributor.
Stand
Referring to Figure 1.
1. Assemble the legs (A) to the table (B). Each
leg requires 6 ea M8 x 16 carriage bolts (C)
and 6 ea M8 flange nuts. Hand-tighten only
at this time.
2. Assemble the long plates (E) to the legs (A).
Each plate requires 4 ea M8 x 16 carriage
bolts (F) and 4 ea M8 flange nuts (G). Hand-
tighten only at this time.
3. Assemble the short plates (H) to the legs
(A). Each plate requires 4 ea M8 x 16
carriage bolts (J) and 4 ea M8 flange
nuts (K).
4. Slip the rubber feet onto the ends of the
legs (L)
5. Ensure that the stand is on a level surface
and all four legs are contacting the surface.
6. Tighten all flange nuts with a 13mm socket
or wrench.
A
B
C
D
A
E
FE
G
H
H
J
K
L
Figure 1

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Mounting Bandsaw to Table
The saw body is heavy! Use
caution when lifting! Stabilize until firmly
attached to the stand! Failure to comply may
cause serious injury!
Referring to Figure 2:
1. With the aid of a second person, lift the saw
body (A) and place onto the stand top (B).
Be sure front of saw (with JET logo) faces
stand front (JET logo).
2. Place M8 flat washers (D) on M8x35 hex
cap screws (C) and insert screws through
four mounting holes in the bandsaw and
stand.
3. Secure with four M8 flange nuts (E).
Figure 2
Mounting the Motor
Referring to Figure 3:
1. From the right side of the saw, insert the end
of the motor with the shaft and pulley (A)
through the opening (B) in the casting.
2. Rest the motor on a section of 2x4 placed
between the table and motor and against the
casting of the saw body.
3. Align the two mounting holes on the motor
with the slot and hole on the casting (C and
D). The motor mounting holes should be
visible from the inside of the saw body.
Figure 3
Referring to Figure 4:
4. With a 6mm hex wrench, secure the motor
to the saw body with 2 each M8x25 socket
head cap screws (A), M8 spring washers,
and M8x30 flat washers (C). Do not tighten
at this time.
Note: With the motor sitting on a section of 2x4
(refer to Step 2), the mounting holes can be
easily aligned for screw insertion by lifting on the
pulley (G).
Figure 4

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5. Standing on the right side of the sand saw
(Figure 2), pull the motor towards you.
6. Place the belt (C, Fig. 5) around the wheel
pulley (B, Fig. 5) and motor pulley (A, Fig. 5).
7. Standing on the right side of the sand saw,
push the motor away to put tension on the belt.
8. With a 6mm hex wrench, tighten both socket
head cap screws (D, Fig. 5).
Mounting the Switch
The switch is mounted to the saw body casting on
the front side of the saw between the upper and
lower doors.
Referring to Figure 6:
1. With a cross-point screwdriver, fasten the
switch (A) to the casting (C) with the two
screws already on the switch box (B). These
screws also hold the back plate of the switch
box in place.
Note: There are two mounting holes at the upper
screw location. Use the left mounting hole.
2. In the remaining top mounting hole, secure with
an M5x12 pan head screw (E) and M5 gear
washer.
3. Secure the electrical cords (F) with a wire clip
(G) and M5x12 pan head screw (H).
Cord Clamp
Referring to Figure 7:
On the right side of the saw above the motor,
secure the electrical cord (A) that connects the
switch box to the motor with the cord clamp (B) and
M5x12 pan head screw (C).
Figure 5
Figure 6
Figure 7

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Upper Blade Guard Assembly
Referring to Figure 8:
Secure the upper wheel blade guard (A) to the
upper support bracket post (B) with two each
M6x10 hex cap screws (C) and M6x16 flat
washers.
Figure 8
Table Assembly
Referring to Figure 9:
1. Attach the lower wheel blade guard (D) and
lower support bracket post (C) to the saw
base (E), securing with two each M6x20
hex cap screws (A) and M6 flat
washers (B).
2. Attach the trunnion support bracket (G) to
the saw base (E) with two M8x30 hex cap
screws (J) and two M8 lock washers (K).
3. Thread the M8 hex nut (U) approximately
half way onto the M8x80 hex cap screw (T).
Then thread the screw half way into the
trunnion support bracket (G). Adjustment
will be made later.
4. Remove the table pin (M) and table
insert (L) from the center opening.
5. Orient the table so that the saw blade will
pass through the slot in the table and into
the center opening. Continue holding up the
table, and turn the table so the two screws
that are hanging vertically from below the
table (N) can slide into the holes on the
trunnion support bracket (O). Lower the
table. The screws should now protrude
below the trunnion support bracket.
6. Attach lock knobs (H) to the ends of these
screws.
7. Reinsert the table insert (L) and
table pin (M).
8. Attach the upper blade guard assembly (Q)
to the guide post (S).
9. Secure by tightening the hex cap screw (R).
Loosen the lock knob (T) to raise or lower
the guide post as needed.
Figure 9

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Grounding Instructions
This Band Saw must be
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 tool is equipped with an electric cord
having an equipment-grounding conductor and a
grounding plug that looks similar to the plug in
Figure 10. The plug must be inserted into a
matching outlet that is properly installed and
grounded in accordance with all local codes and
ordinances.
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.
Figure 10
Check with a qualified electrician or service
personnel if the grounding instructions are not
completely understood, or if in doubt as to
whether the tool is properly grounded.
Repair or replace a damaged or worn cord
immediately.
115 Volt Operation
As received from the factory, your bandsaw is
ready to run at 115-volt operation. This
bandsaw, when wired for 115 volts, is intended
for use on a circuit that has an outlet and a plug
that looks like the one illustrated in Figure 10. A
temporary adapter, like the adapter in Figure 11,
may be used to connect this plug to a two-pole
receptacle, as shown in Figure 11, if a properly
grounded outlet is not available. The temporary
adapter should only be used until a properly
grounded outlet can be installed by a qualified
electrician. This adapter is not applicable in
Canada. 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 11.
Figure 11
230 Volt Conversion
If 230V, single-phase operation is desired, the
following instructions must be followed:
Disconnect machine from power source.
This band saw is supplied with four motor leads
that are connected for 115V operation, as shown
in Figure 12. Reconnect these four motor leads
for 230V operation, as shown in Figure 12.
Figure 12
The 115V attachment plug supplied with the
band saw must be replaced with a UL/CSA
listed plug suitable for 230V operation, as shown

13
in Figure 13. Contact your local authorized WMH
Tool Group service center or qualified electrician
for proper procedures to install the plug. The
band saw must comply with all local and national
codes after the 230-volt plug is installed.
The band saw with a 230-volt plug should only
be connected to an outlet having the same
configuration (Figure 13). No adapter is
available or should be used with the 230-volt
plug.
Figure 13
Important: In all cases (115 or 230 volts), make
certain the receptacle in question is properly
grounded. If you are not sure, have a registered
electrician check the receptacle.
Extension Cords
Use only three wire extension cords that have
three-prong grounding plugs and three-pole
receptacles that accept the tool’s plug.
Make sure the cord is in good condition, and
heavy enough to carry the current your band
saw will draw. An undersized cord will cause a
drop in line voltage, resulting in loss of power
and overheating. Table 1 shows the correct size
to use depending on cord length and the ampere
rating on your machine’s nameplate. If in doubt,
use the next heavier gauge. The smaller the
gauge number, the heavier the cord.
Repair or replace a damaged or worn cord
immediately.
Power Extension Cord
Currant
(Amps)
Line
voltage
Cord length in
feet
Cord gauge
(AWG)
0 to 25 18
25 to 50 16
50 to 100 16
0-6 120
over 100 14
0 to 25 18
25 to 50 16
50 to 100 14
6-10 120
over 100 12
0 to 25 16
25 to 50 16
50 to 100 14
10-12 120
over 100 12
0 to 25 14
25 to 50 12
12-16 120
over 50 not recommended
Table 1

14
Adjustments
Unplug the machine from the
power source before making any repairs or
adjustments. Failure to comply may cause
serious injury.
Tilting the Table
1. Loosen the front and rear lock knobs
(Figure 14).
2. Tilt table up to 45 degrees to the right or up to
10 degrees to the left. The angle can be read
on the scale mounted to the trunnion.
3. Tighten two lock knobs (Figure 14).
Note: Table stop (Figure 14) must be adjusted
downward to allow the table tilt to the left.
Adjusting 90°Table Stop
1. Disconnect machine from power source.
2. Loosen lock knobs (Figure 14) and tilt table left
until it rests against the table stop.
3. Use a square placed on the table and against
the blade (Figure 15) to see if the table is 90
degrees to the blade.
4. If an adjustment is necessary, loosen lock
knobs, tilt table to the right, and lock in place.
5. Loosen jam nut and turn table stop (Figure 14)
left or right to raise or lower the stop. Tighten
jam nut to hold table stop in place.
6. Unlock table, tilt back onto table rest and
confirm table is 90 degrees with the blade.
7. If necessary, adjust scale pointer to zero.
Changing Blades
Blade teeth are sharp! Use care
when handling the saw blade. Failure to comply
may cause serious injury.
Referring to Figure 16:
1. Disconnect machine from power source.
2. Loosen blade tension by turning the tension
knob counterclockwise (A).
3. Remove the table insert (B) and table pin (C).
4. Open both wheel covers (D, E).
5. Remove the blade from between upper (F) and
lower blade guides (G). Remove blade from
upper and lower wheels.
6. Turn the blade to direct it through the slot in
table.
Front
Figure 14
Figure 15
Figure 16

15
7. Guide new blade through table slot. Place
blade in upper and lower blade guides.
Note: The blade teeth should face the operator,
and they should point down toward the table.
8. Place blade in the middle of the upper and
lower wheel.
9. Re-install table insert (B) and table pin (C).
10. Tension and track blade before operating saw.
Find instructions for tensioning and tracking the
blade in the Adjusting Blade Tension and
Adjusting Blade Tracking sections.
Adjusting Blade Tension
1. Disconnect machine from power source.
2. Turn blade tension knob (Figure 17) clockwise
to tension blade.
3. Apply just enough tension to take the slack out
of the blade.
4. Turn one wheel a few times to move the blade
to the center of the tire
5. With a meter, tension the blade appropriately
for the size of blade used.
6. A gauge (Figure 17) on the upper wheel slide
bracket indicates the approximate tension
according to the width of the blade. Initially, set
the blade tension to correspond to the blade
width as marked on the gauge.
Note 1: As you become more experienced with the
saw, you may find it necessary to change the blade
tension from the initial setting. Changes in blade
width and the type of material being cut will have
an effect on blade tension.
Note 2: Keep in mind that too little or too much
blade tension can cause blade breakage.
Adjusting Blade Tracking
Disconnect machine from the
power source! Never adjust blade tracking with
the machine running! Failure to comply may
cause serious injury!
Tracking refers to how the blade is situated upon
the wheels while in motion. The blade should track
in the center of both wheels.
The blade must be properly tensioned before
adjusting blade tracking. Make sure blade guides
and blade bearings do not interfere with the blade.
1. Open the top wheel cover. Rotate the wheel
forward by hand, and observe the position of
the blade on the wheel. It should be in the
center of the wheel.
Figure 17
Figure 18
2. If adjustment is necessary, loosen wing nut
(Figure 18). Tightening the tracking knob
slightly will move blade so it tracks towards the
rear of machine. Loosening the tracking knob
slightly will cause the blade to track toward the
front of the machine.
3. After blade is tracking in the center of the
wheel, tighten the wing nut.

16
Adjusting Upper Blade Guide Assembly
In Figure 19, the blade guard has been removed for
clarity.
Never operate the Band Saw
without all guards in place and in working
order.
Referring to Figure 19:
1. Disconnect machine from power source.
2. Loosen lock knob (A) and raise or lower the
upper blade guide assembly (C) to just above
the material being cut.
3. Tighten lock knob (A). Make sure blade guide
blocks (D) are still flat to the blade. If
adjustment is necessary, loosen lock knob (A)
and rotate the assembly until the guide
blocks (D) are flat to blade.
If movement of the blade guide assembly seems
“stiff” when being raised or lowered, it can be
adjusted to slide more easily. This is controlled by
an internal spring and ball that provides varying
degrees of resistance against the guide post.
To adjust tension on the spring:
4. Remove the knob (A).
5. Using a 5mm hex wrench, tighten or loosen the
setscrew (B) until desired tension is reached.
6. Reattach and tighten the knob (A).
Blade Guide Adjustment
Never operate the Band Saw
without all guards in place and in working
order.
Referring to Figure 20:
1. Disconnect machine from power source.
2. Remove the blade guard.
Note: Blade must already be tensioned and
tracking properly.
3. Loosen thumbscrews (A) and move the guide
blocks (B) as close to the blade (C) as possible
without pinching it.
4. Tighten thumbscrews (A).
5. Loosen thumbscrew (D) and move the guide
block bracket (E) in or out until the front edge
of the guide blocks (F) are just behind the
"gullets" of the saw teeth.
6. Tighten thumbscrew (D).
7. Replace the blade guard.
Figure 19
Figure 20
Blade Support Bearing Adjustment
Never operate the Band Saw
without all guards in place and in working
order.
1. Remove the blade guard.
2. Loosen the thumbscrew (G).
3. Adjust for a gap of 1/64" between the
bearing (F) and blade (C).
Note: To set this distance quickly, you can place a
dollar bill or piece of paper between support
bearing and back of blade.)
4. Tighten the thumbscrew (G).
5. Replace the blade guard.
Repeat the Blade Guide Adjustment and Blade
Support Bearing Adjustment for the Lower Blade
Guide Assembly.

17
Optional Accessories
Accessory Blades
Blade Width (in.) Length (in.) TPI Type Gauge (in.) Stock Number
Carbon steel 1/8 93-1/2 14 Hook 0.020 709370
Carbon steel 3/16 93-1/2 6 Skip 0.020 709371
Carbon steel 1/4 93-1/2 6 Skip 0.020 709372
Carbon steel 3/8 93-1/2 4 Skip 0.020 709373
Carbon steel 1/2 93-1/2 4 Hook 0.020 709374
Carbon steel 3/4 93-1/2 4 Hook 0.020 709375
Carbon steel 1/8 105 14 Hook 0.020 709376*
Carbon steel 3/16 105 6 Skip 0.020 709377*
Carbon steel 1/4 105 6 Skip 0.020 709378*
Carbon steel 3/8 105 4 Skip 0.020 709379*
Carbon steel 1/2 105 4 Hook 0.020 709380*
Carbon steel 3/4 105 4 Hook 0.020 709381*
Premium alloy 1/8 93-1/2 14 Raker 0.025 709351
Premium alloy 3/16 93-1/2 4 Skip 0.025 709352
Premium alloy 1/4 93-1/2 6 Hook 0.025 709354
Premium alloy 1/4 93-1/2 14 Raker 0.025 709355
Premium alloy 3/8 93-1/2 4 Hook 0.025 709356
Premium alloy 3/8 93-1/2 14 Raker 0.025 709274
Premium alloy 1/2 93-1/2 3 Hook 0.025 709357
Premium alloy 1/2 93-1/2 6 Hook 0.025 709358
Premium alloy 3/4 93-1/2 3 Hook 0.032 709359
Premium alloy 3/4 93-1/2 10 Raker 0.035 709226
Premium alloy 1/8 105 14 Raker 0.025 709361*
Premium alloy 3/16 105 4 Skip 0.025 709362*
Premium alloy 1/4 105 6 Hook 0.025 709364*
Premium alloy 1/4 105 14 Raker 0.025 709365*
Premium alloy 3/8 105 4 Hook 0.025 709366*
Premium alloy 3/8 105 14 Raker 0.025 709275*
Premium alloy 1/2 105 3 Hook 0.025 709367*
Premium alloy 1/2 105 6 Hook 0.025 709368*
Premium alloy 3/4 105 3 Hook 0.032 709369*
Premium alloy 3/4 105 10 Raker 0.032 709276*
Silicon steel 3/16 93-1/2 10 Raker 0.025 709588
Silicon steel 3/8 93-1/2 6 Hook 0.025 709589
Silicon steel 3/8 93-1/2 10 Raker 0.025 709590
Silicon steel 3/8 93-1/2 14 Raker 0.025 709591
Silicon steel 1/2 93-1/2 4 Hook 0.025 709592
Silicon steel 1/2 93-1/2 6 Hook 0.025 709593
Silicon steel 3/4 93-1/2 3 Hook 0.032 709488
Silicon steel 3/4 93-1/2 10 Raker 0.032 709489
Silicon steel 3/16 105 10 Raker 0.025 709594*
Silicon steel 3/8 105 6 Hook 0.025 709595*
Silicon steel 3/8 105 10 Raker 0.025 709596*
Silicon steel 3/8 105 14 Raker 0.025 709597*

18
Blade Width (in.) Length (in.) TPI Type Gauge (in.) Stock Number
Silicon steel 1/2 105 4 Hook 0.025 709598*
Silicon steel 1/2 105 6 Hook 0.025 709599*
Silicon steel 3/4 105 3 Hook 0.032 709517*
Silicon steel 3/4 105 10 Raker 0.032 709518*
* The 105” blades are for use with the optional riser block kit.
Other Accessories
708917 JWBS-12RF Rip Fence Assembly
Includes guide bars, rip fence assembly, fasteners, and mounting instructions with parts list.
708717A JRB-14A Riser Block Kit
Increases depth of cut from 6" maximum to 12" maximum. Includes 6" cast block, long frame
bolt, front and back blade guards, 105” blade, and mounting instructions with parts list.
708716 JMG-14 Miter Gauge Assembly
For straight and angle cutting. Includes guide bar, pivoting support body, and adjustable
stops.
708719 JRB-14 Blade Block Set
Includes upper and lower replacement blocks made from a non-metallic composite material
with a dry lubricant to reduce friction and heat.
708127 JRBG-14 Roller Bearing Guides
Provides three bearing contact points to maximize support and reduce friction. Kit contains upper
and lower guide assemblies, mounting studs, adaptor blocks, and all mounting hardware.
708736 JWBS-14QT Carter Blade Tension Toggle Release
Three control positions—full release, partial tension for positioning, and full tension. For use
with 1/8" to 3/4" blades. Works in conjunction with threaded tension-control knob.

19
Troubleshooting JWBS-14OS Band Saw
Trouble Probable Cause Remedy
Saw unplugged. Check all plug connections.
Fuse blown, or circuit breaker tripped. Replace fuse, or reset circuit breaker.
Saw stops or will not
start.
Cord damaged. Replace cord.
Table stop not adjusted correctly. Check blade with square and adjust
table stop.
Angle pointer not set accurately. Check blade with square and adjust
pointer.
Does not make
accurate 45 or 90
degree cuts.
Miter gauge out of adjustment. Adjust miter gauge.
Fence not aligned with blade. Check and adjust fence (see fence
manual).
Warped wood. Select another piece of wood.
Excessive feed rate. Reduce feed rate.
Incorrect blade for cut. Change blade to correct type.
Blade tension not set properly. Set blade tension according to blade
size.
Blade wanders during
cut.
Guides not set properly. Adjust guides.
Dull blade. Replace blade.
Blade mounted wrong. Teeth should face operator and point
downward.
Gum or pitch on blade. Remove blade and clean with oven
cleaner or other solvent.
Incorrect blade for cut. Change blade to correct type.
Saw makes
unsatisfactory cuts.
Gum or pitch on table. Clean table.
Extension cord too light or too long. Replace with adequate size and
length cord.
Blade does not come
up to speed.
Low shop voltage. Contact your local electric company.
Base on uneven floor. Reposition on flat, level surface.
Saw vibrates
excessively. Loose fasteners. Tighten fasteners.
Parts
Ordering Replacement Parts
To order parts or reach our service department, call 1-800-274-6848 between 7:30am and 6:00pm (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.

20
Body Assembly (JWBS-14OS Band Saw)
Index No. Part No. Description Size Qty
1 ...............JWBS14OS-101.......Base ..................................................................... .................................... 1
2 ...............990180 .....................Hex Cap Screw .................................................... M16x55 ....................... 1
3 ...............TS-155010 ...............Flat Washer.......................................................... M16 ............................. 2
4 ...............TS-154010 ...............Hex Nut ................................................................ M16 ............................. 1
5 ...............100031 .....................Pin ........................................................................ .................................... 4
6 ...............JWBS14OS-106.......Lower Wheel Shaft............................................... .................................... 1
7 ...............BB-6204VV ..............Ball Bearing.......................................................... 6204LLU ..................... 2
8 ...............KD050525 ................Key ....................................................................... 5x5x25 ........................ 2
9 ...............TS-1550061 .............Flat Washer.......................................................... M8 ............................... 1
10 ............. TS-2248162 .............Button Head Socket Screw .................................. M8x16 ......................... 1
11 .............JWBS14OS-111.......Motor .................................................................... 3/4HP, 4P ................... 1
.................JWBS14OS-SC........Starting Capacitor (not shown) ............................ 200MFD, 125VAC....... 1
.................JWBS14OS-CC .......Capacitor Cover (not shown) ............................... .................................... 1
.................JWBS14OS-CSS .....Centrifugal Switch Set (not shown)...................... .................................... 1
.................JWBS14OS-MFC.....Motor Fan Cover (not shown) .............................. .................................... 1
12 .............JWBS14OS-112.......Motor Pulley ......................................................... .................................... 1
13 ............. TS-1523031 .............Set Screw............................................................. M6x10 ......................... 1
14 ............. 994534 .....................Switch .................................................................. Tumble Type............... 1
15 ............. 990811 .....................Tapping Screw ..................................................... M3.5x12 ...................... 2
16 ............. TS-1550021 .............Flat Washer.......................................................... M4 ............................... 2
17 ............. JWBS14OS-117.......Switch Plate ......................................................... .................................... 1
18 ............. TS-1533052 .............Pan Head Screw .................................................. M5x16 ......................... 2
19 ............. WE050000 ...............Star Washer ......................................................... M5 ............................... 2
20 ............. 523028 .....................Switch Box ........................................................... .................................... 1
21 ............. 150056 .....................Switch Backing Plate ........................................... .................................... 1
23 ............. 990821 .....................Pan Head Screw .................................................. M5x6 ........................... 2
24 ............. 998654 .....................Strain Relief.......................................................... .................................... 2
25 ............. JWBS14OS-125.......Power Cord .......................................................... .................................... 1
26 .............JWBS14OS-126.......Motor Cord ........................................................... .................................... 1
27 ............. 998623 .....................Strain Relief.......................................................... .................................... 1
28 ............. JWBS14OS-128.......Upper Frame Arm ................................................ .................................... 1
29 ............. 990651 .....................Lock Knob ............................................................ M10x30 ....................... 1
.................100016ACP..............Sliding Bracket Assy (included #30 - #39) ........... ....................................1
30 .............100016A...................Sliding Bracket ..................................................... .................................... 1
31 ............. NW080000 ...............Wing Nut .............................................................. M8 ............................... 1
32 ............. 990652 .....................Lock Knob ............................................................ M8x45 ......................... 1
33 ............. 990653 .....................Blade Adjusting Screw ......................................... .................................... 1
34 ............. 100021 .....................Steel Pin............................................................... .................................... 2
.................A100019...................Upper Wheel Shaft Hinge Assy (included #35 – #37) .............................. 1
35 ............. 150086 .....................Upper Wheel Shaft............................................... .................................... 1
36 ............. 992314 .....................Spring Pin............................................................. φ4x24.......................... 1
37 ............. 100019 .....................Upper Wheel Shaft Hinge .................................... .................................... 1
38 .............100015A...................Coil Spring............................................................ .................................... 1
39 ............. 150090 .....................Square Nut........................................................... M10 ............................. 1
40 .............JWBS14OS-140.......Upper Wheel ........................................................ .................................... 1
41 ............. 100025A...................Wheel Protector ................................................... .................................... 2
42 ............. TS-1540083 .............Hex Nut ................................................................ M12 ............................. 1
43 ............. 992522 .....................Retaining Ring ..................................................... R35 ............................. 2
44 .............BB-6202ZZ...............Ball Bearing.......................................................... 6202ZZ........................ 2
45 .............JWBS14OS-145.......Lower Wheel ........................................................ .................................... 1
46 ............. TS-1550061 .............Flat Washer.......................................................... M8 ............................... 1
47 ............. JWBS14OS-147.......Hex Head Bolt (Left Thread)................................ M8x20 ......................... 1
48 .............JWBS14OS-148.......Lower Wheel Guard ............................................. .................................... 1
49 ............. 150024 .....................Catch Knob .......................................................... M8 ............................... 2
50 ............. WI080000.................Gear Washer........................................................ M8 ............................... 2
51 ............. PWBS14-136 ...........Stud Latch ............................................................ .................................... 2