Edco DS-20 Assembly instructions

Operator’s Instruction Manual
Concrete/Asphalt Saws
ELECTRIC, GASOLINE AND PNEUMATIC MODELS
MPS-I-0819
E-SPTS-I-0809
EQUIPMENT DEVELOPMENT CO., INC.
EQUIPMENT DEVELOPMENT CO., INC.
100 Thomas Johnson Drive, Frederick, MD 21702-4600 USA
Phone: [phone] • 301-663-1600
Fax: [phone] • 301-663-1607
edcoinc.com • [email protected]
SB-14
ASB-14
KL-18
SK-14
DS-20
DS-18

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MPS-I-0819
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EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
SPECIFICATIONS
Note: All dimensions and weights are for reference only and subject to change at any time.
HOW TO ORDER REPAIR PARTS
To insure product safety and reliability, always use genuine
EDCO replacement parts when making repairs to the equipment.
When ordering parts, please specify the MODEL and SERIAL
NUMBER of the machine as given on the NAMEPLATE. In
addition, give part number, description and quantity as listed
on the parts list.
Please note: Due to improvements and changes in the equipment
the illustrations shown may be di󰀨erent from the actual machine.
Toll Free: Phone [phone] • Fax [phone]
Figure 1
Table of Contents
Section Page Number
Specifcations ..................................................................................................................................................... 2
Safety Information ..........................................................................................................................................3-9
Notes ............................................................................................................................................................... 10
Safety Guidelines ............................................................................................................................................ 11
Operating Controls .......................................................................................................................................... 12
Operating Instructions ................................................................................................................................13-14
Changing Blades ............................................................................................................................................. 15
Maintenance Instructions/Schedule............................................................................................................16-18
Limited Equipment Warranty ................................................................................................... Inside Back Page
Model # DS-20 DS-18 KL-18 SK-14 SB-14 ASB-14
“A” 39” 39 3/8” 38 1/2” 38” 37” 37”
“B” 19 3/4” 19 3/4” 19 3/4” 16 1/2” 17 3/4” 17 3/4”
“C” 50” 48 3/4” 43” 48” 48 3/4” 48 3/4”
“D” 18” 20 1/2” 15” 14 3/4” 14 1/2” 14 1/2”
“E” 24 1/2” 24 1/2” 20” 21” 21” 21 1/2”
“F” 27” 27” 25 3/4” 23 1/2” 23 1/2” 23 1/2”
Weight 265 lbs 254 lbs 212 lbs 173 lbs 180 lbs 160 lbs
“A”
“B”
“C” “D” “E”
“F”

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MPS-I-0819
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800-638-3326 • edcoinc.com • [e-mail] 800-638-3326 • edcoinc.com • [e-mail]
EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
Extreme care must be taken when operating
electric models with water present: Ensure power
cord is properly grounded, is attached to a Ground-
Fault-Interrupter (GFI) outlet, and is undamaged.
•Check all electrical cables - be sure connections are tight
and cable is continuous and in good condition. Be sure
cable is correctly rated for both the operating current and
voltage of this equipment.
•Engine exhaust from this product contains
chemicals known to the State of California
to cause cancer, birth defects or other re-
productive harm.
• Tilting a gasoline powered machine tted
with an EPA approved vented charcoal lter
gas cap, beyond 20° can cause fuel leak-
age. If a leak occurs, do not start or run the engine until
the leak is xed. Eliminate all other ignition sources in the
immediate area (no smoking, ares, sparks or ames).
Use approved gasoline absorbing material to contain the
fuel leakage. Then use clean, non-sparking tools to collect
absorbed materials then dispose of these contaminants
properly.
• Gasoline is extremely ammable and poison-
ous. It should only be dispensed in well ventilated
areas, and with a cool engine.
• Small gasoline engines produce high concentrations of
carbon monoxide (CO) example: a 5 HP 4 cycle engine
operation in an enclosed 100,000 cu. ft. area with only
one change of air per hour is capable of providing deadly
concentrations of CO in less than fteen minutes. Five
changes of air in the same area will produce noxious
fumes in less than 30 minutes. Gasoline powered equip-
ment should not be used in enclosed or partially enclosed
areas. Symptoms of CO poisoning include, head-ache,
nausea, weakness, dizziness, visual problems and loss
of consciousness. If symptoms occur - get into fresh air
and seek medical attention immediately.
•Never refuel a hot engine or an engine while it is running.
•Engines are shipped from factory without fuel/oil.
SAFETY MESSAGES
Indicates an imminent hazard which, if not
avoided, will result in death or serious injury.
Indicates an imminent hazard which, if not
avoided, can result in death or serious injury.
Indicates hazards which, if not avoided,
could result in serious injury and or damage
to the equipment.
•Safety Instructions are proceeded by a graphic alert
symbol of DANGER, WARNING, or CAUTION.
ELECTRICAL POWERED EQUIPMENT
GASOLINE / PROPANE POWERED EQUIPMENT
•Improper connection of the equipment grounding con-
ductor can result in a risk of electric shock. Check with
qualied electrician or service person if there is any doubt
as to whether the outlet is properly grounded. Adhere to
all local codes and ordinances.
•NOTE: In the event of a malfunction or breakdown,
grounding provides a path of least resistance for the
electric current to dissipate. The motor is equipped with
a grounded plug and must be connected to an outlet that
is properly installed and properly grounded. DO NOT
modify the plug provided on the motor. If the plug does
not t the outlet have a qualied electrician install the
proper receptacle.
•Do not disconnect power by pulling cord. To disconnect,
grasp the plug, not the cord.
•Unplug power cord at the machine when not in use and
before servicing.
•Switch motor OFF before disconnecting power.
•Never use frayed, damaged, taped or under rated exten-
sion cords. Electrical shock could result in death or seri-
ous injury to the operator and damage to the equipment.
•Assure you are using the proper extension cord length.
• Propane is extremely ammable and is heavier
than air and tends to settle in low areas where a
spark or ame could ignite gas. DO NOT start or
operate this propane engine in a poorly ventilated area
where leaking propane gas could accumulate and endan-
ger safety of persons in area. If headache develops, shut
o󰀨 machine. Have it checked for carbon monoxide emis-
sions by a qualied technician before using it again. To
ensure personal safety, installation and repair of propane
fuel supply systems must be performed only by qualied
technicians. Carbon monoxide emissions from this machine
are greatly increased due to a dirty combustion air cleaner.
PROPANE POWERED EQUIPMENT CONTINUED
SAFETY INFORMATION

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MPS-I-0819
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EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
• When operating this equipment, the operator must wear
approved job related safety attire. Eye and hearing pro-
tection must be worn at all times while equipment is in use
as sound levels exceed 85 dBA. Steel toe safety shoes
should be worn. Head protection is required if work is
performed overhead. Wear proper dust mask based on
material being removed.
• Use the correct size air hose for the tool, ½” diameter
(minimum). Hose and ttings must be rated for safe
handling in excess of 100 PSI pressure. The working
pressure of this tool is 80-90 PSI and should never be
allowed to exceed 100 PSI. If damaged hose is pres-
ent, replace the hose before further use.
• Limit the hose length to 30 feet (10 meters) maximum.
Note: The pressure drop of 1/2” diameter hose is
approximately 1 PSI per 90 linear feet.
• Limit the hose length to 30 feet (10 meters) maximum.
Note: The pressure drop of 3/8” diameter hose is
approximately 3 PSI per 90 linear feet.
• A lter/water separator must be provided on the air
source to a󰀨ord an adequate supply of clean, dry air to
this machine. Keep hoses clear at all times.
• Disconnect the air supply before per-
forming any maintenance on this ma-
chine. Use only genuine EDCO parts
with this equipment. Failure to do so may
result in seriuos bodily injury or death.
AIR POWERED EQUIPMENT
SAFETY INFORMATION
AIR POWERED EQUIPMENT CONTINUED
• This equipment will create dust from the
material being removed. That dust may
contain a chemical known to the state of
California to cause cancer and/or birth defects or other
reproductive harm. Check the chemical properties of the
materials to be removed.
• It is the operator’s responsibility to keep
other people (workers, pedestrians, by-
standers, etc.) away during operation.
Block o󰀨 the work area in all directions with roping, safety
netting, etc. for a safe distance. Failure to do so may result
in others being injured by ying debris or exposing them
to harmful dust and noise.
• Replace any damaged parts immediately. Use only
genuine EDCO parts.
• Do NOT force the tool into the work. The hammering ac-
tion of the tool will perform the work for you. If the tool does
not seem to perform the work to your specications, check
the air supply to verify proper air pressure and lubricator
is functioning properly. If above suggestions do not rem-
edy the problem call our customer service department at
1-800-638-3326 for possible solutions and trouble shooting.
• After turning the air valve hand lever o󰀨, the tool will
continue to operate for a few seconds. This is a normal
result of stored up pressure in the machine casing being
released gradually. Be sure to rmly grip the machine
until ALL air leaves the chamber.
DUST WARNING
Some dust created by power sanding, saw-
ing, grinding, drilling, and other construction
activities contains chemicals known to cause
cancer, birth defects, or other reproductive harm. Materi-
als being removed can be toxic or hazardous. A breathing
respirator is required to help protect the operator.
Some examples of these chemicals are:
•Lead from lead-based paints.
•Crystalline silica from bricks, concrete and other
masonry products.Your risk of exposure to these chemi
cals varies depending on how often you do this type of work.
To reduce your risk: work in a well ventilated area, use a
dust control system, such as an industrial-style vacuum,
and wear approved personal safety equipment, such as a
dust/particle respirator designed to lter out microscopic
particles.
• See more on the importance of dust prevention and silica
warnings at: osha.gov/silica
• More concrete and silica dust supression training and
educational materials available at edcoinc.com/silica-
standards or scan the QR code on page 5.
• Written exposure plans are provided at http://www.ed-
coinc.com/written-exposure-control-plans/
• Remove the air source from the machine when not in use.

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MPS-I-0819
E-SPTS-I-0809
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EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
•Equipment should only be operated by trained person-
nel in good physical condition and mental health (not
fatigued). The operator and maintenance personnel
must be physically able to handle the bulk weight and
power of this equipment.
•This is a one person tool. Maintain a safe operating
distance to other personnel. It is the operators’ re-
sponsibility to keep other people (workers, pedestrians,
bystanders, etc.) away during operation. Block o󰀨 the
work area in all directions with roping, safety netting, etc.
Failure to do so may result in others being injured by y-
ing debris or exposing them to harmful dust and noise.
•This equipment is intended for commercial use only.
•For the operator’s safety and the safety of others, always
keep all guards in place during operation.
•Never let equipment run unattended.
•Personal Protection Equipment and proper safety attire
must be worn when operating this machinery. The opera-
tor must wear approved safety equipment appropriate for
the job such as hard hat and safety shoes when condi-
tions require. Hearing protection MUST be used when
operational noise levels of this equipment may exceed
85db. Eye protection MUST be worn at all times.
OPERATOR RESPONSIBILITIES
• Read and follow all safety decals and labels.
• Maintain a safe operating distance to other personnel.
• Be familiar with all aspects of the machine’s operation and
controls before applying power to the equipment.
• Use the correct accessory for the job being performed
and material being removed. Make sure accessories are
mounted correctly.
• Never operate this machine while under the inuence of
drugs or alcohol, while taking medications that impair the
senses or reactions, or when excessively tired or under
stress.
• Follow the instructions in the operator’s manual and
exercise caution.
• Comply with all local safety and health regulations as well
as EPA and OSHA regulations.
• Read/Maintain a copy of the equipment’s operator’s
manual and the engine/motor manufactures operators
manual with the machine for reference at all times.
• Be sure all decals on the machine can be clearly read
and understood. Replace worn/missing decals immediately.
GENERAL INSTRUCTIONS
Keep body parts, loose clothing and accessories
away from moving parts. Failure to do so could
result in dismemberment or death.
• Do not modify the machine.
• Stop motor/engine when adjusting or servicing this equip-
ment. Maintain a safe operating distance from am-
mable materials. Sparks from the cutting-action
of this machine can ignite ammable materials or
vapors.
SAFETY INFORMATION

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MPS-I-0819
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800-638-3326 • edcoinc.com • [e-mail] 800-638-3326 • edcoinc.com • [e-mail]
EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
WARNING: This machine used in its applicaon on concrete/cement/brick surfaces can expose
you to chemicals including crystalline silica which is known to the State of California to cause can-
cer. For more informaon go to www.P65Warnings.ca.gov
WARNING: This product can expose you to chemicals including soots, tars, and mineral oils, which
are known to the State of California to cause cancer, and carbon monoxide, which is known to the
State of California to cause birth defects or other reproducve harm. For more informaon go to
www.P65Warnings.ca.gov
WARNING: Baeries, baery posts, terminals and related accessories can expose you to chemicals
including lead and lead compounds, and other chemicals known to the State of California to cause
cancer and birth defects or other reproducve harm. WASH HANDS AFTER HANDLING. For more
informaon go to www.P65Warnings.ca.gov
WARNING: Cancer and Reproducve Harm -
For more informaon go to: www.P65Warnings.ca.gov
For more informaon regarding exposure to California’s Proposion 65 listed chemicals from an
EDCO machine or part, please contact t[email protected].
WARNING: California Proposion 65
Depending on machine/part model the following warnings may apply:
Proposion 65 applies to any company operang in California, selling products in California, or manufactur-
ing products that may be sold in or brought into California. The purpose of Proposion 65 is to inform the
public about exposure to these chemicals. EDCO has not shied manufacturing processes, this is strictly an
updated warning procedure required by the state of California. While the exposure from EDCO products
may be negligible or well within the “no signicant risk” range, out of an abundance of cauon, EDCO has
elected to provide these Proposion 65 warnings.

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MPS-I-0819
E-SPTS-I-0809
800-638-3326 • edcoinc.com • [e-mail] 800-638-3326 • edcoinc.com • [e-mail]
EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
Grinding/cutting/drilling of masonry, concrete, metal and other materials can generate dust, mists and fumes contain-
ing chemicals known to cause serious or fatal injury or illness, such as respiratory disease, cancer, birth defects or
other reproductive harm. If you are unfamiliar with the risks associated with the particular process and/or material
being cut or the composition of the tool being used, review the material safety data sheets and/or consult your
employer, the manufacturers/suppliers, governmental agencies such as OSHA and NIOSH and other sources on
hazardous materials. California and some other authorities, for instance, have published lists of substances known
to cause cancer, reproductive toxicity, or other harmful e󰀨ects.
Control dust, mist and fumes at the source where possible. In this regard use good work practices and follow the
recommendations of the manufacturers/suppliers, OSHA/NIOSH, and occupational and trade associations. Water
should be used for dust suppression when wet grinding/cutting/drilling is feasible. When the hazards from inhalation
of dust, mists and fumes cannot be eliminated, the operator and any bystanders should always wear a respirator
approved by NIOSH/MSHA for the material being used.
Grinding/cutting/drilling of masonry, concrete and other materials with silica in their composition may give o󰀨 dust
or mists containing crystalline silica. Silica is a basic component of sand, quartz, brick clay, granite and numerous
other minerals and rocks. Repeated and/or substantial inhalation of airborne crystalline silica can cause serious
or fatal respiratory diseases, including silicosis. In addition, California and some other authorities have listed re-
spirable crystalline silica as a substance known to cause cancer. When grinding/cutting/drilling such materials,
always follow the respiratory precautions mentioned above.
See more on the importance of dust prevention and silica warnings at osha.gov/silica.
See more concrete and silica dust supression training and educational
materials at edcoinc.com/silica-standards or scan the QR code at right.
DUST AND CRYSTALLINE SILICA WARNING

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MPS-I-0819
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EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
This symbol means that the machine is heavy if the machine needs to be lifted onto or o󰀨 of a truck,
loading dock etc. that proper technique or heavy duty lifting device should be used, personal injury could result.
(Yellow background with black pictogram and black outline)
This symbol means that dangerous chemicals, gases, dust particles and/or fumes are present including
carbon monoxide. Proper ventilation must be maintained. Do not use gasoline or diesel powered
equipment indoors.
(Yellow background with black pictogram and black outline)
This symbol means that there are sharp components and if feet/ngers/digits come in contact personal
injury or death could result.
(Yellow background with black pictogram and black outline)
This symbol means that potential hazardous voltages are present and the equipment must be properly
grounded and extreme caution should be taken. If for any reason maintenance or repair is needed,
insure that voltage(s) are disconnected at the machine and the source unless (be cautious) voltage needs
to be present to troubleshoot the problem, then only qualied personal should work on “live” systems.
(Yellow background with black pictogram and black outline)
This symbol means hazardous pressures are present. Caution should be exercised to prevent personal
injury or damage to equipment. Face, eye and head protection should be used.
(Yellow background with black pictogram and black outline)
This symbol means explosive and hazardous vapors are present. Caution should be exercised to
prevent personal injury to face and eyes. Breathing and personal protection should be used when
servicing.
(Yellow background with black pictogram and black outline)
This symbol means that the guards must remain in place while the engine/motor on the machine is
running because death or personal injury may result.
(Yellow background with black pictogram and black outline)
This symbol means that there are moving parts and if feet/ngers/digits are inserted under any edge of
the cutter/grinder/saw cover while the engine/motor on the machine is running that personal injury and loss
of foot/ngers/digits may result.
(Yellow background with black pictogram and black outline)
This symbol means the surface is HOT and that if ngers/digits/hands or any bare or unprotected skin comes
in contact with this surface or hot accessory, possible serious burns and personal injury may result.
(Yellow background with black pictogram and black outline)
SAFETY SYMBOLS

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MPS-I-0819
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800-638-3326 • edcoinc.com • [e-mail] 800-638-3326 • edcoinc.com • [e-mail]
EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
This symbol means that the Operator’s, owners, instruction and/or manufacturer(s) manuals must be
read and understood before operating or attempting to operate this electrical, gasoline, diesel or
propane powered equipment, failure to do so can result in personal injury and possible death.
(Blue background with white pictogram.)
This symbol means that proper eye protection must be worn/used during the operation of this equipment. There is
a potential risk of operator eye damage, injury or loss of sight. This also applies to any personnel standing
nearby observing the operation of this equipment.
(Blue background with white pictogram.)
This symbol means that proper ear protection should be worn/used during the operation of this equipment.
There is a potential risk of operator hearing damage, injury or loss of hearing which will increase based on the
length of exposure. This also applies to any personnel standing nearby observing the operation of this equipment.
(Blue background with white pictogram.)
This symbol means that proper head protection should be worn/used during the operation of this equipment there
is a potential risk of operator head injury from foreign or loose objects the equipment might come in
contact with during operation. This also applies to any personnel standing nearby or observing the
operation of this equipment.
(Blue background with white pictogram.)
This symbol means that proper breathing protection or engineering controls must be worn/used during the
operation of this equipment there is a potential risk of operator lung damage. Repeated and/or substantial
inhalation of airborne crystalline silica can cause serious or fatal respiratory diseases, including silicosis. In
addition, to California and some other authorities have listed respirable crystalline silica as a substance known
to cause cancer. When grinding/cutting/drilling such materials, always follow local respiratory precautions.
This also applies to any personnel standing nearby or observing the operation of this equipment.
(Blue background with white pictogram.)
This symbol means do not insert ngers/digits under any edge of the belt cover while the engine/
motor on the machine is running because personal injury and loss of ngers/digits may result.
(Black pictogram with red “No” symbol outline)
This symbol denotes the lifting point and means that if lifting of this equipment is necessary use a lifting
device that is designed to accomodate or exceed the weight of this machine. Check the Operator’s
manual for specications. Using a device that is not designed to accomodate or exceed the weight of this
machine could result in damage to the machine and personal injury. Do not lift equipment over people
because death or serious injury could result.
(Blue background with white pictogram.)
This GHS pictogram identies that the chemicals contained present serious health hazards.
(Black pictogram with red diamond symbol outline)
SAFETY SYMBOLS

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EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
NOTES
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EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
Read and understand this Operator’s Instruction Manual,
and the Engine Manufacturer’s Owner’s Manual
before operating this equipment.
Death of serious injury can result if this machine is used improperly.
Safety Guidelines
Maintain a safe operating distance from ammable materials. Sparks from the cutting-action of this saw can ignite am-
mable materials or vapors.
Operator must wear appropriate clothing and footwear. Do not wear loose clothing or jewelry that can get tangled
or caught in moving parts.
Eye and ear protection must be worn at all times when this machine is in use. During normal use, sound levels ex-
ceed 85dBA. Use only ANSI approved safety glasses to help prevent eye injury. Everyday eyeglasses have only
impact resistant lenses; they are NOT safety glasses.
• Keep a safe operating distance from other personnel and never leave the machine running unattended.
• Maintain the machine in safe operating condition with all guards in place and secure, all mechanical fasteners
tight, all controls in working order and the saw congured for the job application.
• The SK-14, SB-14, DS-20, KL-18, and the DS-18 are designed to cut at, horizontal concrete or asphalt slabs using diamond saw
blades.
• The SK-14, SB-14, DS-20, KL-18, and the DS-18 are to be operated by a single operator from a position at the rear of the saw.
• Avoid deck inserts, pipes, columns, openings, electrical outlets, or any objects protruding from slab surface.
• Inspect the blades carefully before installing. Do not use any questionable blade since serious personal injury
and/or damage to property can result.
• Never operate this saw while under the inuence of drugs, alcohol or when taking medications that impair the
senses or reactions, or when excessively tired or under stress.
• Be sure all safety decals on the machine can be clearly read and understood. Replace damaged or missing
decals immediately.
Safety warnings and guidelines do not by themselves eliminate danger.
They are not given as substitutes for proper accident prevention and good judgement.

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EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
Operating Controls
Diagrams shown with Honda Cyclone Dual-Filter Element Engine as an example.
Consult the Engine Manufacturer’sOwner’s Manual for information on specic models.
Please Note:
Controls shown are for the model indicated.
The location of these controls may vary on the
di󰀨erent models.
Due to improvements and changes in the
equipment, the illustration shown may be dif-
ferent from the actual machine.
Electric Powered
Figure 3
Motor Starter
Reset/Stop
Start Switch Box
Depth Control
Handwheel Knob
Guide Bar
Electrical Plug
(SB-14 SHOWN)
Water
Valve Lever
Water Hose
Connector
“WHIPCHEKTM ”
Safety Cable
Belt Tension Adjustment
Pneumatic Saw
Depth Control
Handwheel Knob
Oil Regulator Knob
Oil Sight Glass
Guide Bar Filter Sight
Glass
Air Pressure
Gauge
Air Hose
Coupler
Air Regulator
Valve
(ASB-14 SHOWN)
(Do not adjust air supply
without “WHIPCHEKTM” cable
being properly installed.)
Optional
Vacuum
Port
Figure 2
Depth Control
Handwheel Knob
Engine Stop Switch
Throttle
Control
Choke Control
Guide Bar
Gasoline Powered
( DS-18 SHOWN)
Recoil
Starter Grip
Lifting Bail
Guide Pointer
Figure 4

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EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
Operating Instructions
• FOR WET CUTTING: Attach the water supply. A ow rate of approximately 2 gallons per minute (minimum) is
required. Attach the water hose to the coolant valve. Use the valve to control the ow of water.
• FOR DRY CUTTING: Provide a respirator and dust control system.
• FOR ELECTRIC MODELS: Be sure the “OFF” button is depressed. Hook up the electrical power source by
plugging into the connector provided. If the cord does not mate with the connector, consult a qualied licensed
electrician before continuing. Be sure that the equipment is properly grounded.
• FOR GASOLINE MODELS: Put the engine stop switch in the “RUN” position. Consult the engine manufacturers
operating instructions and follow the directions for starting and breaking in the engine.
• FOR PNEUMATIC MODELS: Before connecting the air source, be sure the “WHIPCHEKTM” cable is
properly installed and the ow control lever is in the “OFF” position. Adjust the air pressure to 90 psi (100 psi MAX.)
using the air regulator valve (see Figure 4 on page 6) . Open the ow control lever gradually to start and adjust the
oil regulator knob as required for your application.
Before Starting Engine:
• BEFORE STARTING THE ENGINE OR MOTOR: Raise the saw blade clear of the working surface. The blade is
raised using the depth control handwheel knob mounted on the upper handle assembly (Figure 5) . Lift the knob to
unlock and turn the handwheel clockwise until the blade is clearly o󰀨 the ground.
• START ENGINE AND ALLOW IT TO REACH OPERATING SPEED: Position the saw over the cutting line.
Bring the engine to full speed. Lower the blade into the slab surface by slowly turning the depth control handwheel
knob. NOTE - the 14 inch blade has a maximum cutting depth of 4 3/4”. Do not allow the arbor anges to contact
slab surface.
When the selected cutting depth is reached, lock the depth control
handwheel knob and proceed to push the saw forward. The saw
blade must remain straight, do not twist, and do not force blade,
the engine or motor should not strain when cutting.
Cutting to maximize depth should be achived in stepped
increments of 1”.
Refer to the Rx for Diamond Blades for more detailed information on diamond blades.
Figure 5
Depth Control
Handwheel Knob

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MPS-I-0819
E-SPTS-I-0809
800-638-3326 • edcoinc.com • [e-mail] 800-638-3326 • edcoinc.com • [e-mail]
EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
Optional Accessories
Optional Water Tank Kit for
SK-14 (P/N 52075),
SB-14 (P/N 51090),
DS-18 (P/N 56310).
DS-20 (P/N 56310).
KL-18 (P/N 56310)
**KL-18 Requires optional
lifting bail for Water
Tank Kit assembly**
Model SK-14, with WaterTank Option, shown
•TO STOP THE MACHINE: Stop forward motion. On gasoline models push the throttle to idle. Turn the
depth control handwheel knob counter clockwise to raise the blade clear of the cut. Turn ignition or power
switch o󰀨 and let the engine come to a complete stop. Turn o󰀨 the water supply.
•WHEN MANEUVERING THE SAW: Make sure the blade is raised high enough so it does not strike the
slab surface. Damage to blade may occur with inadvertent contact with the slab or other object.
•DO NOT FORCE BLADE WHILE CUTTING.
•IF THE POWER SOURCE STALLS IN THE CUT: Raise the blade completely out of the cut. Disconnect
the power source (i.e. the spark plug wire on a gasoline engine or disconnect an electric model at the ma-
chine). Inspect the blade ange nut/bolt to verify that they are still tight, and inspect the blade for damage.
Replace damaged (or questionable) blades immediately.
•WHEN TRANSPORTING THE SAW: Be sure to remove the blade. Before removing the blade,
disconnect the power source before lifting or removing any guard.
See the directions for Installing Blades on (page 15) .
•WHEN HOISTING A CONCRETE SAW EQUIPPED WITH A LIFTING BAIL: Always inspect frame and
Figure 6
Operating Instructions

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MPS-I-0819
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800-638-3326 • edcoinc.com • [e-mail] 800-638-3326 • edcoinc.com • [e-mail]
EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
Changing Blades - On EDCO saws in this manual
Disconnect the machine from the power source before performing any work on the equipment (i.e. changing
the blade). To disconnect the power source on gasoline engine models, remove the spark plug lead. On electric
models, unplug the electrical power cord at the machine.
• Make sure you have the proper blade for the job. Determine the hardness and composition of the slab. Give your dealer
complete information including whether re-bars are present, the desired depth of the cut, and length of the cut. If in doubt,
contact the blade manufacturer.
Inspect the blades before installing. Check diamond blades for cracks, loose segments and oversize, worn, or
out-of-round arbor holes (On page 17). Do not use any questionable blade since serious personal injury and/or
damage to property can result. Do not use warped, twisted, or out-of-balance blades. Unbalanced
blades will wear excessively, vibrate and damage both arbor shaft and bearings. Do not use blade without a
drive pinhole (Figure 10).
For safety reasons, EDCO does not recommend the use of any abrasive blades. Abrasive blades can break
and cause serious personal injury to operator and/or bystanders. If abrasive blades are used by choice, use
only reinforced abrasive blades. Inspect blades carefully.
Never exceed the maximum operating speed of the blade. Be sure to match the blade speed rating with the
arbor shaft speed on the machine. The standard models of the SK-14, SB-14, DS-18 have an arbor shaft
speed (unloaded) of 3600 RPM and 3000 RPM under load.
• Do not remove or lift the blade guard unless machine is stopped and all power is disconnected. Be sure to reinstall blade
guard before reconnecting the power source.
• Be sure the arbor shaft, backing plate, and blade cap are clean and in good condition. Make sure the threads are clean and
undamaged. If any damage is detected, consult your EDCO dealer (or the EDCO factory).
• The backing plate and blade cap (Figure 11) should be the same diameter, do not use if they are di󰀨erent diameters. For
abrasive blades and for all steel centered diamond blades, the backing plate and blade cap must be at least 1/4 the
diameter of the blade.
• The drive pin should be tight in the blade cap and long enough to t through blade and into hole in backing plate.
• Place the blade on the arbor shaft and turn until the drive pinhole lines up with the backing plate.
• Place the blade cap on the arbor shaft so the drive pin goes through the holes in the blade and backing plate.
• Put washer and arbor shaft nut and tighten arbor shaft nut.
• Secure the blade guard in the operating position before reconnecting the power supply or starting engine.
Arbor Shaft
Figure 11
Blade Cap
retaining Nut
Blade Retaining
Cap
Backing Plate
Drive Pin
Drive Pin Hole
Internal tooth
Lock Washer
Figure 10
Drive Pin Hole

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MPS-I-0819
E-SPTS-I-0809
800-638-3326 • edcoinc.com • [e-mail] 800-638-3326 • edcoinc.com • [e-mail]
EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
Disconnect the machine from the power source. Remove the spark
plug lead on gasoline engine models or disconnect the supply voltage
connector on electric models, before performing any maintenance. All
maintenance to be performed regularly by qualied personnel
Maintenance Instructions
•Never work under saw without rst placing chocks on the wheels and support device under the saw to prevent it
from moving or falling. Always work on a at and level surface.
• Refer to the engine manual for maintenance information specic to the engine used. Be sure to check oil level
before operation. Clean air lter element daily.
• Grease bearings daily during use. Refer to (page 17) for lubrication points on available models.
• Perform a visual inspection of the entire machine before operation. Be sure all fasteners are tight and secure,
check for signs of metal cracking or fatigue, inspect for damage to electrical wiring, damage to fuel lines,
check bearings and inspect to be sure proper guards are in place and secure, etc...
• Inspect belts before operation. Check belt tension. On new equipment, belts should be re-tensioned after the
rst four hours of use. Damaged, stretched or excessively worn belts should be replaced with a new matched set.
• To tension belts, loosen motor mounting hardware slightly. Either push motor towards the rear of the saw (handle
bar side) until the belts are tight or on the models with a belt tensioning adjustment bolt, use bolt to adjust the
motor until the belts are tight. Re-torque the engine mounting hardware.
• Proper belt tension must be maintained to transmit the engine power to the cutting blade. Slipping belts will overheat,
the blade life will be shortened and the cutting speed limited. Over tensioned belts will shorten the belt and bearing life.
• Check diamond blades for cracks, loose segments and oversize, worn, or out-of-round arbor holes (See Page 16).
Do not use any questionable blade since serious injury and/or damage to property can result. Do
not use warped, twisted, or out-of-balance blades. Unbalanced blades will wear excessively, vibrate and damage
both arbor shaft and bearings. Do not use a blade without a drive pinhole.
• For safety reasons, EDCO does not recommend the use of any abrasive blades. Abrasive blades can break and
cause serious personal injury to operator and/or bystanders. If abrasive blades are used by choice, use only rein-
forced abrasive blades. Inspect abrasive blades carefully.
• Be sure arbor shaft, backing plate and blade cap are clean and in good condition. Flanges should be free of nicks
and burrs. Replace if out-of-round or worn.
Figure 8 Figure 9
Drive Pin
Hole

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800-638-3326 • edcoinc.com • [e-mail] 800-638-3326 • edcoinc.com • [e-mail]
EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
Lubrication Points
Grease Bearings Every 4 Hours of Use
MODEL SK-14
GREASE FITTINGS
MODEL SB-14
ASB-14
GREASE FITTINGS
MODEL DS-18, DS-20 &
KL-18
GREASE FITTINGS
NOTE: Wipe grease ttings clean before servicing.
Possible Diamond Blade Problems
Possible Diamond Blade Problems
Segment Loss:
Usually insu󰀩cient water
Arbor Hole Out-of-Round:
Blade not properly tightened or
seated on arbor
Cracked Segments
and/or Core:
Wrong blade for the job
Blade Will Not Cut:
Blade is glazed or to
hard for the job

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MPS-I-0819
E-SPTS-I-0809
800-638-3326 • edcoinc.com • [e-mail] 800-638-3326 • edcoinc.com • [e-mail]
EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
Maintenance Schedule
This is for a quick reference to the information supplied in the Maintenance portion of this manual.
Repairs are to be done
by authorized EDCO
Dealers only.
Read and follow instructions
in the Engine Manufacturer’s
Owner’s Manual.
Change Engine Oil
Daily
Before
Operation
After
Operation
As Required
Visually Inspect Entire
Machine and Hardware
Clean Air Filter Element
Inspect Guards
Check Engine Oil
Inspect Blade and
Arbor Shaft
Inspect Belts
Clean Dust and
Dirt O󰀨 Machine
Follow the Engine
Manufacturer’s
Maintenance
Instructions
X
X
X
X
X
X
X
X
X
Replace Spark Plug
Annually
Grease Bearings X

MPS-I-0819
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MPS-I-0819
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EQUIPMENT DEVELOPMENT CO., INC. EQUIPMENT DEVELOPMENT CO., INC.
Equipment Development Company, Inc. herein referred to as EDCO (Seller) warrants that
each new unit manufactured by EDCO to be free from defects in material and workmanship
in normal use and service for a period of (1) one year (except for the cutter drum assembly
on all model concrete/asphalt planers AND the chisel head assembly on all model ALR’s &
ALR-BS in which case the warranty period shall be 90 days) from date of shipment to the
original retail or equipment rental center owner.
Accessories or equipment furnished and installed on the product by EDCO but manufactured by
others, including, but not limited to engines, motors,electrical components, transmissions etc.,
shall carry the accessory manufacturers own warranty.
EDCO will, at its option, repair or replace, at the EDCO factory or at a point designated by
EDCO, any part which shall appear to the satisfaction of EDCO inspection to have been
defective in material or workmanship.
EDCO reserves the right to modify, alter and improve any part or parts
without incurring any obligation to replace any part or parts previously sold without such
modified, altered or improved part or parts.
This warranty is in lieu of and excludes all other warranties, expressed, implied, statutory,
or otherwise created under applicable law including, but not limited to the warranty of
merchantability and the warranty of fitness for a particular purpose in no event shall seller
or the manufacturer of the product be liable for special, incidental, or consequential dam-
ages, including loss of profits, whether or not caused by or resulting from the negligence
of seller and/or the manufacturer of the product unless specifically provided herein. In ad-
dition, this warranty shall not apply to any products or portions there of which have been
subjected to abuse, misuse, improper installation, maintenance, or operation, electrical
failure or abnormal conditions and to products which have been tampered with, altered,
modified, repaired, reworked by anyone not approved by seller or used in any manner
inconsistent with the provisions of the above or any instructions or specifications provided
with or for the product.
FORCE MAJEURE
Seller’s obligation hereunder are subject to, and Seller shall not be held responsible for, any
delay or failure to make delivery of all or any part of the Product due to labor difficulties,
fires, casualties, accidents, acts of the elements, acts of God, transportation difficulties,
delays by a common carrier, inability to obtain Product, materials or components or qualified
labor sufficient to timely perform part of or all of the obligations contained in these terms
and conditions, governmental regulations or actions, strikes, damage to or destruction in
whole or part of manufacturing plant, riots, terrorist attacks or incidents, civil commotions,
warlike conditions, flood , tidal waves, typhoon, hurricane, earthquake, lightning, explosion
or any other causes, contingencies or circumstances within or without the United States not
subject to the Seller’s control which prevent or hinder the manufacture or delivery of the
Products or make the fulfillment of these terms and conditions impracticable. In the event
of the occurrence of any of the foregoing, at the option of Seller, Seller shall be excused
from the performance under these Terms and Conditions, or the performance of the Seller
shall be correspondingly extended.
This document sets forth the terms and conditions pursuant to which the purchaser (“Pur-
chaser”) will purchase and Equipment Development Co.Inc. (“Seller”)will sell the products,
accessories, attachments (collectively the Products “) ordered by the Purchaser. These
terms and conditions shall govern and apply to the sale of Seller’s Products to Purchaser,
regardless of any terms and conditions appearing on any purchase order or other forms
submitted by Purchaser to Seller, or the inconsistency of any terms therein and herein.
1. PRICE
All prices set forth on any purchase order or other document are F.O.B. Sellers facility or dis-
tribution point, as may be determined by Seller (F.O.B.Point). All prices are exclusive of any
and all taxes, including, but not limited to, excise, sales, use, property or transportation taxes
related to the sale or use of the Products, now or hereafter imposed, together with all penalties
and expenses. Purchaser shall be responsible for collecting and/or paying any and all such
taxes, whether or not they are stated in any invoice for the Products. Unless otherwise speci-
fied herein, all prices are exclusive of inland transportation, freight, insurance and other costs
and expenses relating to the shipment of the Products from the F.O.B. point to Purchaser’s
facility. Any prepayment by Seller of freight insurance and other costs shall be for the account
of Purchaser and shall be repaid to Seller.
2. PAYMENT TERMS
Payment terms are as follows. 2% 10 days (to approved and qualified accounts). Net 30
days. This is a cash discount for invoices paid within 10 days after the invoice date, regard-
less of date of receipt of shipment. This is not a trade discount and will not be granted to
accounts that do not adhere to stated terms.
*All past due accounts are subject to a late payment fee of 1.5% per month or a maximum
allowed by law if different, along with the expenses incidental to collection including reason-
able attorney’s fees and costs.
*Seller reserves the right to hold shipments against past due accounts.
*Seller reserves the right to alter payment terms.
3. FREIGHT TERMS
All shipments will be made F.O.B. shipping point as designated in these Terms and Condi-
tions, and title shall pass at the F.O.B. point. Delivery to the initial common carrier shall
constitute delivery to the Purchaser. Any claims for loss or damage during shipment
are to be filed with carrier by the Purchaser. Seller will not assume responsibility for the
performance of the carrier.
Back orders will be shipped in the most practical fashion with charges consistent with
our freight policy established with the original order. UPS, FED EX, MAIL or shipments
by other couriers are subject to the same terms and conditions as outlined in paragraph
#3”Freight Terms”.
4. DELIVERY, DAMAGES, SHORTAGES
Seller shall use reasonable efforts to attempt to cause the Products to be delivered as provided
for in these Terms & Conditions. Delivery to the initial common carrier shall constitute the delivery
to the Purchaser. Sellers responsibility, in so far as transportation risks are concerned ceases
upon the delivery of the Products in good condition to such carrier at the F.O.B. point and all the
Products shall be shipped at the Purchaser’s risk. Seller shall not be responsible or liable for
any loss of income and/or profits, or incidental, special, consequential damages resulting from
Seller’s delayed performance in shipment and delivery.
5. RETURN OF DEFECTIVE PRODUCTS
Defective or failed material shall be held at the Purchaser’s premises until authorization has
been granted by Seller to return or dispose of Products. Products that are to be returned
for final inspection must be returned Freight Prepaid in the most economical way. Credit
will be issued for material found to be defective upon Seller’s inspection based on prices
at time of purchase.
6. PRODUCTS ORDERED IN ERROR
Products may be returned, provided that claim is made and Seller is notified within 7 days
of receipt of Products, and the Products are in original buyer’s possession not more than
30 days prior to return, subject to Seller’s approval. If Products are accepted for return,
they must be Freight Prepaid and buyer will be charged a minimum of 15% restocking
charge, plus a charge back for outbound freight charges if the original order was shipped
prepaid. Returns are not accepted for any Products that are specifically manufactured to
meet the buyer’s requirement of either specifications or quantity.
AGREEMENTS
These Terms and Conditions constitute the entire agreement between Seller and Purchaser as
it relates to terms and conditions of sale, and supersedes any and all prior oral or written agree-
ments, correspondence, quotations or understandings heretofore in force between the parties
relating to the subject matter hereof. There are no agreements between Seller and Purchaser
with respect to the Product herein except those specifically set forth in and made part of these
terms and conditions. Any additional terms, conditions and/or prices are rejected by Seller.
These terms and conditions may be modified, cancelled or rescinded only by a written
agreement of both parties executed by their duly authorized agents.
USE ONLY GENUINE EDCO PARTS & ACCESSORIES
For your own safety, the safety of others and the life of your machine.
SUBMIT ALL WARRANTY CLAIMS AT:
edcoinc.com/customer-support/warranty-claim-form/
LIMITED EQUIPMENT WARRANTY OF SALE
TERMS AND CONDITIONS
(NOT APPLICABLE TO SALES THROUGH AUTHORIZED DISTRIBUTION)

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EQUIPMENT DEVELOPMENT CO., INC.
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