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Operating Instructions and Parts Manual
Ferrous Manual Cold Saws
Models J-FK350-2, J-FK350-4
JET
427 New Sanford Road
LaVergne, Tennessee 37086 Part No. M-414214
Ph.: 800-274-6848 Revision D 08/2019
www.jettools.com Copyright © 2017 JET
1.0 Warranty and Service
JET® warrants every product it sells against manufacturers’ defects. If one of our tools needs service or repair, please
contact Technical Service by calling 1-800-274-6846, 8AM to 5PM CST, Monday through Friday.
Warranty Period
The general warranty lasts for the time period specified in the literature included with your product or on the official
JET branded website.
JET products carry a limited warranty which varies in duration based upon the product. (See chart below)
Accessories carry a limited warranty of one year from the date of receipt.
Consumable items are defined as expendable parts or accessories expected to become inoperable within a
reasonable amount of use and are covered by a 90 day limited warranty against manufacturer’s defects.
Who is Covered
This warranty covers only the initial purchaser of the product from the date of delivery.
What is Covered
This warranty covers any defects in workmanship or materials subject to the limitations stated below. This warranty
does not cover failures due directly or indirectly to misuse, abuse, negligence or accidents, normal wear-and-tear,
improper repair, alterations or lack of maintenance. JET woodworking machinery is designed to be used with Wood.
Use of these machines in the processing of metal, plastics, or other materials may void the warranty. The exceptions
are acrylics and other natural items that are made specifically for wood turning.
Warranty Limitations
Woodworking products with a Five Year Warranty that are used for commercial or industrial purposes default to a
Two Year Warranty. Please contact Technical Service at 1-800-274-6846 for further clarification.
How to Get Technical Support
Please contact Technical Service by calling 1-800-274-6846. Please note that you will be asked to provide proof
of initial purchase when calling. If a product requires further inspection, the Technical Service representative will
explain and assist with any additional action needed. JET has Authorized Service Centers located throughout the
United States. For the name of an Authorized Service Center in your area call 1-800-274-6846 or use the Service
Center Locator on the JET website.
More Information
JET is constantly adding new products. For complete, up-to-date product information, check with your local distributor
or visit the JET website.
How State Law Applies
This warranty gives you specific legal rights, subject to applicable state law.
Limitations on This Warranty
JET LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED WARRANTY FOR EACH PRODUCT.
EXCEPT AS STATED HEREIN, ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE EXCLUDED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN
IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
JET 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.
JET sells through distributors only. The specifications listed in JET printed materials and on official JET website are
given as general information and are not binding. JET reserves 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
Product Listing with Warranty Period
90 Days – Parts; Consumable items
1 Year – Motors; Machine Accessories
2 Year – Metalworking Machinery; Electric Hoists, Electric Hoist Accessories; Woodworking Machinery used
for industrial or commercial purposes
5 Year – Woodworking Machinery
Limited Lifetime – JET Parallel clamps; VOLT Series Electric Hoists; Manual Hoists; Manual Hoist
Accessories; Shop Tools; Warehouse & Dock products; Hand Tools; Air Tools
NOTE: JET is a division of JPW Industries, Inc. References in this document to JET also apply to JPW Industries,
Inc., or any of its successors in interest to the JET brand.
®
branded products are not sold in Canada by JPW Industries, Inc.
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2.0 Table of Contents
1.0 Warranty and Service ..................................................................................................................................... 2
2.0 Table of Contents ........................................................................................................................................... 3
3.0 IMPORTANT SAFETY INSTRUCTIONS ....................................................................................................... 4
4.0 About this machine and manual ..................................................................................................................... 5
5.0 J-FK350 Features .......................................................................................................................................... 6
6.0 Specifications ................................................................................................................................................. 6
7.0 Features ......................................................................................................................................................... 7
7.1 Miter Cutting Head ..................................................................................................................................... 7
7.2 Miter Position Lock ..................................................................................................................................... 7
7.3 Self-centering Vise ..................................................................................................................................... 7
7.4 J-FK350 Controls ....................................................................................................................................... 7
7.5 Trigger Handle ............................................................................................................................................ 7
7.6 Flood Coolant System ................................................................................................................................ 7
8.0 Installation ...................................................................................................................................................... 8
8.1 Unpacking the machine .............................................................................................................................. 8
8.2 Anchoring and handling the machine ......................................................................................................... 8
9.0 Electrical Connections .................................................................................................................................... 8
10.0 Controls ........................................................................................................................................................ 8
10.1 Control Panel ............................................................................................................................................ 8
10.2 Trigger Handle .......................................................................................................................................... 8
11.0 Operation ..................................................................................................................................................... 9
11.1 Stock Stop ................................................................................................................................................ 9
11.2 Miter Adjustment ...................................................................................................................................... 9
11.3 Depth Stop ............................................................................................................................................... 9
12.0 Maintenance ............................................................................................................................................... 10
12.1 Maintenance Requirements ................................................................................................................... 10
12.2 Periodic Maintenance ............................................................................................................................. 10
12.3 Coolant ................................................................................................................................................... 10
12.4 Changing the Saw Blade ........................................................................................................................ 10
12.5 Lubrication .............................................................................................................................................. 10
12.6 Coolant System ...................................................................................................................................... 10
13.0 Blade Selection .......................................................................................................................................... 11
13.1 General Characteristics .......................................................................................................................... 11
13.2 Determining Proper Tooth Pitch ............................................................................................................. 11
13.3 Cutting and Feeding Speed .................................................................................................................... 11
13.4 Coolant ................................................................................................................................................... 11
13.5 Blade Structure ....................................................................................................................................... 12
13.6 Types of Blades ...................................................................................................................................... 12
13.7 Teeth Shape ........................................................................................................................................... 12
14.0 Troubleshooting the J-FK350 ..................................................................................................................... 14
14.1 Blade and Cutting Problems ................................................................................................................... 14
14.2 Machine Fault & Operating Problems .................................................................................................... 15
15.0 Parts ........................................................................................................................................................... 15
15.1.1 Head Assembly – Parts List ................................................................................................................ 16
15.1.2 Head Assembly – Exploded View ....................................................................................................... 17
15.2.1 Stock Stop Assembly – Parts List ....................................................................................................... 18
15.2.2 Stock Stop Assembly – Exploded View ............................................................................................... 18
15.3.1 Stand Assembly – Parts List ............................................................................................................... 19
15.3.2 Stand Assembly – Exploded View ....................................................................................................... 19
15.4.1 Base Assembly – Parts List ................................................................................................................. 20
15.4.2 Base Assembly – Exploded View ........................................................................................................ 21
15.5.1 Manual Vise Assembly – Parts List ..................................................................................................... 22
15.5.2 Manual Vise Assembly – Exploded View ............................................................................................ 23
15.6.1 Guard Assembly – Parts List ............................................................................................................... 24
15.6.2 Guard Assembly – Exploded View ...................................................................................................... 25
15.7.1 In-Feed Table Assembly – Parts List .................................................................................................. 26
15.7.2 In-Feed Table Assembly – Exploded View .......................................................................................... 26
15.8.1 Out-Feed Table – Parts List ................................................................................................................ 27
15.8.2 Out-Feed Table – Exploded View ....................................................................................................... 27
16.0 Wiring Diagram .......................................................................................................................................... 28
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3.0 IMPORTANT SAFETY INSTRUCTIONS
1. Read and understand the entire owner's
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. The cold 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 cold saw, do not use until
proper training and knowledge have been
obtained.
5. Do not use this cold saw for other than its
intended use. If used for other purposes, JET
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 cold saw. Everyday
eyeglasses only have impact resistant lenses;
they are not safety glasses.
7. Before operating the cold 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. Do not operate this machine while tired or
under the influence of drugs, alcohol or any
medication.
10. Make certain the switch is in the OFF position
before connecting the machine to the power
supply.
11. Make certain the machine is properly
grounded.
12. Make all machine adjustments or maintenance
with the machine unplugged from the power
source.
13. 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.
14. 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.
15. Make sure the cold saw is firmly placed on a
secure foundation.
16. 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.
17. Provide for adequate space surrounding work
area and non-glare, overhead lighting.
18. Keep the floor around the machine clean and
free of scrap material, oil and grease.
19. Keep visitors a safe distance from the work
area. Keep children away.
20. Make your workshop child proof with padlocks,
master switches or by removing starter keys.
21. Give your work undivided attention. Looking
around, carrying on a conversation and “horseplay” are careless acts that can result in
serious injury.
22. 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.
23. 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.
24. Use recommended accessories; improper
accessories may be hazardous.
25. Maintain tools with care. Keep saw blades
sharp and clean for the best and safest
performance. Follow instructions for lubricating
and changing accessories.
26. Turn off the machine before cleaning. Use a
brush or compressed air to remove chips or
debris — do not use your hands.
27. Do not stand on the machine. Serious injury
could occur if the machine tips over.
28. Never leave the machine running unattended.
Turn the power off and do not leave the
machine until it comes to a complete stop.
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29. Remove loose items and unnecessary work
pieces from the area before starting the
machine.
WARNING: This product can expose you to
chemicals including chlorinated paraffins which
are known to the State of California to cause
cancer, and ethylene glycol which is known to
the State of California to cause birth defects or
other reproductive harm. For more information
go to http://www.p65warnings.ca. gov.
SAVE THESE INSTRUCTIONS
WARNING: Some dust, fumes and gases
created by power sanding, sawing, grinding,
drilling, welding and other construction
activities contain chemicals known to the State
of California to cause cancer and 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 dust masks that are
specifically designed to filter out microscopic
particles. For more information go to http://
www.p65warnings.ca.gov/ and http://www.
p65warnings.ca.gov/wood.
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.
The specifications in this manual are given as general information and are not binding. JET 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.
4.0 About this machine and manual
The J-FK350 Cold Saw is designed to provide a reliable solution to the needs of machine shops and
production environments that work with steel or iron. The J-FK350 is manually operated. After clamping the
material in the vise, the operator presses the trigger handle starting the blade, and brings the operating lever
downward to cut the material. The saw can perform miter cuts up to 45º to the right or left.
This manual is provided by JET, covering the safe operation and maintenance procedures for the J-FK350
Cold Saw. This manual contains instructions on installation, safety precautions, general operating procedures,
maintenance instructions and parts breakdown. Your machine has been designed and constructed to provide
consistent, long-term operation if used in accordance with the instructions as set forth in this document.
If there are questions or comments about this product, please contact your local supplier or JET. JET can also
be reached at our web site: www.jettools.com.
Retain this manual for future reference. If the machine transfers ownership, the manual should accompany it.
Register your product using the provided card, or register online: http://www.jettools.com
5
5.0 J-FK350 Features
J-FK350 Cold Saw
6.0 Specifications
Model ................................................................................. J-FK350-2 .................................................. J-FK350-4
Stock Number ..................................................................... 414214 ....................................................... 414217
Disc Blade
Disc diameter ............................................................. 14" (350mm) .............................................. 14" (350mm)
Hole diameter ............................................................... 1.3" (32mm) ............................................... 1.3" (32mm)
Blade thickness ........................................................... 0.1" (2.5mm) .............................................. 0.1" (2.5mm)
Cutting Speed
Blade Speed (RPM) ......................................................... 44 and 88 ................................................... 44 and 88
Motor
Motor ..................................................................... 2HP, 3PH, 60Hz ......................................... 2HP, 3PH, 60Hz
Voltage ............................................................................... 220VAC ...................................................... 440VAC
Other
Maximum Vise Opening ............................................................... 6”. ................................................................ 6”
Coolant Capacity ..................................................................... 3 gal. .......................................................... 3 gal.
Dimensions ...................................................... 50"L x 28"W x 60"H .................................... 50"L x 28"W x 60"H
Net Weight ........................................................................... 794 lbs ....................................................... 794 lbs
Shipping Weight ................................................................... 850 lbs ....................................................... 850 lbs
Cutting Capacity (All Models)
Degree Round Square Rectangle
Tubing
Solid
90° 4.5" 4.25" 5.5" x 3.75"
45° 3.5" 3.5" 3.5" x 3.5"
90° 2" 2" 2" x 2"
45° 1.75" 1.75" 1.75" x 1.75"
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7.0 Features
7.6 Flood Coolant System
7.1 Miter Cutting Head
The miter cutting head is the unit that cuts the
material and consists of a cast iron base, blade
support unit and guard, transmission unit, and
motor. The depth of cut is set by adjusting the
depth cut stop. The miter cutting head swivels and
locks into -45º, 90º, and +45º by means of a
locking mechanism. Pressing the mechanism
overrides the lock, permitting the head to adjust to
any position between -45º and +45.
7.2 Miter Position Lock
The miter position lock secures the miter cutting
head from movement. The miter is secured when
the lock is pushed all the way to the left and can be
positioned when the lock is moved to the right.
7.3 Self-centering Vise
The self-centering vise holds the work piece in
place during cutting. The work piece is secured in
the vise by turning the vise handles.
7.4 J-FK350 Controls
The control panel consists of the Power (On/Off)
switch and High/Stop/Low switch, and an integral
coolant system. To operate the machine, the
Power switch must be set to on and the
High/Stop/Low switch must be set for Hi or Low.
Then press the trigger handle to start.
The coolant pump must be
submerged before operating to prevent damage
to the pump.
Coolant is dispensed directly onto the saw blade
from a coolant fitting on the upper blade guard.
Coolant is provided through tubing from the coolant
pump (Figure 2) in the machine base.
Adjust the coolant flow valve on coolant fitting to
achieve desired flow. When the coolant switch is in
the ON position, flow starts when the drive motor is
started. Turning off the coolant switch stops
coolant flow.
This coolant system can operate with either a
soluble oil base coolant or water-soluble synthetic
coolant. Coolant should be changed regularly.
Some recommended brands are DoAll and Lenox.
These coolants are available at your local industrial
distributor.
7.5 Trigger Handle
The trigger handle (Figure 1) is located on the
operating lever used to raise and lower the saw. It
contains a micro-switch, which is activated when
the operator depresses the run trigger.
Figure 1
Figure 2
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8.0 Installation
10.0 Controls
8.1 Unpacking the machine
Do not handle the packed
machine using slings.
To install the machine, first remove the packing,
paying particular attention not to cut any electric
wires or hydraulic hoses. Lift using straps (Figure
3).
10.1 Control Panel
The Control Panel (Figure 4) is located on the front
of the cabinet stand and consists of the Power and
High/Stop/Low switches, described below.
Power Switch – The Power switch has two
positions, Off and On.
High/Stop/Low Switch – This switch controls the
blade speed. To operate the saw, the power switch
must set to on, High or Low must be selected, and
the Run Trigger pressed.
Figure 3
8.2 Anchoring and handling the
machine
The base of the machine must be anchored to the
floor by two lag bolts or studs properly anchored
into concrete.
9.0 Electrical Connections
All electrical connections
must be done by a qualified
electrician. All adjustments or repairs must be
done with the machine disconnected from the
power source, unplugged. Failure to comply
may result in serious injury!
The J-FK350-2 is rated at 220V.
The J-FK350-4 is rated at 440V.
These machines not supplied with a plug. Use a
plug and outlet rated at least 20amps. The circuit
for the machine should also be protected by at
least a 20 amp circuit breaker or fuse.
Make sure that the blade turns in the correct
direction. If it does not, simply reverse two of the
phase wires on the supply input.
The cold saw is now ready for use.
Figure 4
10.2 Trigger Handle
To operate, the Power switch must be set to ON, a
Hi or Low speed selection made, and the trigger
handle pressed.
Figure 5
8
11.0 Operation
11.2 Miter Adjustment
Before using the machine:
Check that safety devices (e.g., blade guards)
are in position and work perfectly and that
personal safety requirements are complied
with.
Check the sharpness of the blade and verify
coolant flow.
Operation
1. Make sure the work piece is securely clamped
in the vise.
2. Turn the power on (A, Fig. 8).
3. Select the cutting speed (B, Fig. 8).
To adjust the miter position follow the steps below
while referring to Figure 10:
1. Move the miter position lock (A) to the right to
release.
2. Adjust the head to the desired angle ranging
from –45º to +45º by pushing on the back of
the motor to the right or left. The miter position
is shown on the scale (B).
3. A detent mechanism locks the head in the -45º,
90º and +45º positions to prevent the head from
rotating. For a miter position other than -45º, 90º
and +45º, press the lever (C) to release while
rotating the head.
4. When the desired cutting angle is set, move
miter position lock (A) to the left to secure.
Figure 8
4. Grip the trigger handle (Figure 5) on the
control lever.
5. Start the blade by pressing the micro-switch on
the handgrip.
The down stroke speed of the head is controlled
manually by the operator. The coolant pump is
activated during the time that the head is below the
upper limit position.
When the cut is complete:
6. Raise the head.
7. Remove the work piece from the vise using the
vise hand wheels.
11.1 Stock Stop
Install the shaft of the stock stop into the threaded
hole in the right side of the table. See sect. 14.2.2
exploded view for reference.
The stop can be used for quickly making multiple
cuts of the same length
Figure 10
11.3 Depth Stop
The depth stop adjustment limits the lower travel of the
saw blade during a cutting operation.
Remove power when making
this adjustment. Failure to
comply may result in serious injury!
To adjust the depth of cut (refer to Figure 12):
1. Using two 13mm wrenches, loosen the lock
nut (A).
2. With the saw in the fully lowered position, turn
the screw (B) until the saw blade bottoms out
at the desired level.
3. Tighten the lock nut.
Figure 12
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