5.0 Pre-operation checklist
44..3344CCHHEECCKKDDAAMMAAGGEEDDPPAARRTTSS..
Verify all machine guards are in good condition and will function properly before using the machine.
Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting, and any
other conditions that may affect machine operation. A guard, power switch or other part that is damaged
should be properly repaired or replaced by an authorized service center unless indicated elsewhere in
this instruction manual. Do not operate machine if lever or engine on/off switch does not function
properly.
44..3355SSEECCUURREELLYYMMOOUUNNTTAACCCCEESSSSOORRIIEESSAANNDDBBLLAADDEESSTTOOTTHHEEMMAACCHHIINNEE..
Extra care must be taken when using saws on an elevated location to prevent injury to someone on a lower
level in the event the tool or accessory should drop. Do not operate without fall protection for operator
and debris protection forpublic.
44..3366
NNEEVVEERRTTOOUUCCHHTTHHEEMMOOVVIINNGGPPAARRTTSS..
Never touch moving parts such as blades, belts and others.
44..3377SSTTOOPPOOPPEERRAATTIIOONNIIMMMMEEDDIIAATTEELLYYIIFFAANNYYAABBNNOORRMMAALLIITTYYIISSDDEETTEECCTTEEDD..
Stop using machine immediately if any abnormalities are observed during operation. Examples of
abnormalities include unusual noise and vibration.
44..3388WWHHEENNRREEPPLLAACCIINNGGAAPPAARRTT,,UUSSEETTHHEESSAAMMEETTYYPPEEAANNDDQQUUAALLIITTYY..
When replacing a component part with a new one, use only the same type and quality of new part.
Never attempt to repair a machine if you are unfamiliar with proper procedures and techniques
required.
44..3399DDOONNOOTTMMOODDIIFFYYMMAACCHHIINNEE..
Do not modify machine from its original design without written permission from the manufacturer. Non-
authorized modifications could lead to serious injury or death and void warranty.
44..4400NNEEVVEERRDDIISSAABBLLEETTHHEELLEEVVEERR..
Do not modify, disable, or attempt to permanently engage the lever. Do not operate a machine if lever
is not functioning. This could lead to serious injury or death.
44..4411SSAAVVEETTHHEESSEEIINNSSTTRRUUCCTTIIOONNSS..
Refer to this operations and maintenance manual as well as any additional instructions included from
other manufacturers and organizations such as Honda® and the Masonry and Concrete Saw
Manufacturers Institute®. Never permit anyone to operate the machine without proper instructions.
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FFiigguurree33--WWaarrnniinnggllaabbeell--rreeaaddaanndduunnddeerrssttaannddmmaannuuaall
5.1
Start by reading the entire Honda Engines Owner's Manual, Rx for Diamond Blade Safety, and Rx for Concrete
Saws by the Masonry and Concrete Saw Manufacturers Institute. Then, read the entire JS operations and
maintenance manual. Get familiar with the machine's parts. See Figure 1 through Figure 32.
PRE-OPERATION CHECKLIST
TO PREVENT SERIOUS INJURY DO NOT OPERATE SAW WITHOUTPROPER TRAINING AND.
UNDERSTANDING OF THE OWNERS MANUAL
WHEN OPERATING THIS MACHINE
ALWAYS WEAR SAFETY APPROVED
HEARING PROTECTION
EYE OR FACE PROTECTION
PROTECTIVE HELMET
PROTECTIVE GLASSES OR FULL FACE PROTECTION
WEAR HAND PROTECTION
WARNING: Improperly maintaining the JS including the Honda engine or failing to correct a problem before
operation could cause a malfunction resulting in a serious injury. Always perform a pre-operation inspection before
each operation and correct any problem. See Honda Engines Owner's Manual.
5.2
Check the condition of the Honda engine. See the section titled "Before operation - is your
engine ready to go?" in the Honda Engines Owner's Manual.
WARNING: Exhaust gas from gasoline engines contains dangerous carbon monoxide. Breathing it can cause
unconsciousness and even kill you. Always operate gasoline engine machines in a well-ventilated area. Do not
operate in areas where exhaust fumes could accumulate without wearing appropriate respiratory protection.
Consult your employer and OSHA regarding use of appropriate respirator for dangerous carbon monoxide
gases. See Figure 7.
EEnnggiinneeeexxhhaauussttccoonnttaaiinnss
ppooiissoonnoouussccaarrbboonn
mmoonnooxxiiddeeggaass..Breathing
it could cause death.
Operate machine in well
ventilated area.
FFiigguurree77--WWaarrnniinnggllaabbeell--eennggiinneeeexxhhaauussttccoonnttaaiinnssccaarrbboonnmmoonnooxxiiddeeggaass1111
Figure 1 - Warning label - read and understand manual
5.1 Start by reading the entire Honda Engines Owner’s Manual,
Rx for Diamond Blade Safety, and Rx for Concrete Saws by the
Masonry and Concrete Saw Manufacturers Institute. Then, read the
entire JS operations and maintenance manual. Get familiar with the
machine’s parts. See Figure 12 through Figure 16.
WARNING: Improperly maintaining the JS including the Honda
engine or failing to correct a problem before operation could cause a
malfunction resulting in a serious injury. Always perform a pre-opera-
tion inspection before each operation and correct any problem.
See Honda Engines Owner’s Manual.
5.2 Check the condition of the Honda engine. See the section
titled “Before operation - is your engine ready to go?” in the
Honda Engines Owner’s Manual.
TO PREVENT SERIOUS INJURY DO NOT OPERATE SAW WITHOUT PROPER
TRAINING AND. UNDERSTANDING OF THE OWNERS MANUAL
WHEN OPERATING THIS MACHINE
6
Keep all guards
in place
TO PREVENT SERIOUS INJURY DO NOT OPERATE SAW WITHOUTPROPER TRAINING AND.
UNDERSTANDING OF THE OWNERS MANUAL
WHEN OPERATING THIS MACHINE
ALWAYS WEAR SAFETY APPROVED
HEARING PROTECTION
EYE OR FACE PROTECTION
PROTECTIVE HELMET
PROTECTIVE GLASSES OR FULL FACE PROTECTION
WEAR HAND PROTECTION
WARNING: Improperly maintaining the JS including the Honda engine or failing to correct a problem before
operation could cause a malfunction resulting in a serious injury. Always perform a pre-operation inspection before
each operation and correct any problem. See Honda Engines Owner's Manual.
5.2
Check the condition of the Honda engine. See the section titled "Before operation - is your
engine ready to go?" in the Honda Engines Owner's Manual.
WARNING: Exhaust gas from gasoline engines contains dangerous carbon monoxide. Breathing it can cause
unconsciousness and even kill you. Always operate gasoline engine machines in a well-ventilated area. Do not
operate in areas where exhaust fumes could accumulate without wearing appropriate respiratory protection.
Consult your employer and OSHA regarding use of appropriate respirator for dangerous carbon monoxide
gases. See Figure 7.
EEnnggiinneeeexxhhaauussttccoonnttaaiinnss
ppooiissoonnoouussccaarrbboonn
mmoonnooxxiiddeeggaass..Breathing
it could cause death.
Operate machine in well
ventilated area.
FFiigguurree77--WWaarrnniinnggllaabbeell--eennggiinneeeexxhhaauussttccoonnttaaiinnssccaarrbboonnmmoonnooxxiiddeeggaass1111
Wear Head Protec-
tion, breathing pro-
tection, and the use
of hearing protection
is mandatory
TO PREVENT SERIOUS INJURY DO NOT OPERATE SAW WITHOUTPROPER TRAINING AND.
UNDERSTANDING OF THE OWNERS MANUAL
WHEN OPERATING THIS MACHINE
ALWAYS WEAR SAFETY APPROVED
HEARING PROTECTION
EYE OR FACE PROTECTION
PROTECTIVE HELMET
PROTECTIVE GLASSES OR FULL FACE PROTECTION
WEAR HAND PROTECTION
WARNING: Improperly maintaining the JS including the Honda engine or failing to correct a problem before
operation could cause a malfunction resulting in a serious injury. Always perform a pre-operation inspection before
each operation and correct any problem. See Honda Engines Owner's Manual.
5.2
Check the condition of the Honda engine. See the section titled "Before operation - is your
engine ready to go?" in the Honda Engines Owner's Manual.
WARNING: Exhaust gas from gasoline engines contains dangerous carbon monoxide. Breathing it can cause
unconsciousness and even kill you. Always operate gasoline engine machines in a well-ventilated area. Do not
operate in areas where exhaust fumes could accumulate without wearing appropriate respiratory protection.
Consult your employer and OSHA regarding use of appropriate respirator for dangerous carbon monoxide
gases. See Figure 7.
EEnnggiinneeeexxhhaauussttccoonnttaaiinnss
ppooiissoonnoouussccaarrbboonn
mmoonnooxxiiddeeggaass..Breathing
it could cause death.
Operate machine in well
ventilated area.
FFiigguurree77--WWaarrnniinnggllaabbeell--eennggiinneeeexxhhaauussttccoonnttaaiinnssccaarrbboonnmmoonnooxxiiddeeggaass1111
Read and understand
operator's manualbefore
using this machine.
Failure to follow operating
Instructions could result
in injury or damage to
equipment.
Use only diamond blades (steel
centered diamond cutting-off
wheels) with this machine. RPM
rating on blade must exceed
machine max rpm rating. The use
of any other blade could result in
death or serious injury.
5400 MAX. RPM
Avoid injury.
Do NOT operate with
guard removed.
Replace guard before
operating machine.
C1h azard Commu nication Syw ems. LLLLCCMMOO--774466--00224411
To avoid injury:
Always inspect saw
blades before use.
Replace all cracked or damaged
blades.
Rotating blade
hazard.
Do NOT operate with
guard up.
Keep hands and feet
away.
Engine exhaust
contains poisonous
ccaarrbboonnmmoonnooxxiiddeeggaass..
Breathing it could cause
death.
Operate machine in well
ventilated area.
This product can expose you to chemicals, including NICKEL. When used, serviced, cleaned, or maintained equipment could generate particulates
that contain chemicals, including silica. These chemicals are known to the state of California to cause cancer and birth defects or other
reproductive harm. For more information, visit www.P65Warnings.ca.gov
4.0 Rules for safer operation
Flying debris
and loud noise
hazards. Wear
ear and eye
protection
Wear hand
protection
WARNING: Exhaust gas from gasoline engines contains dangerous
carbon monoxide. Breathing it can cause unconsciousness and even kill
you. Always operate gasoline engine machines in a well-ventilated area.
Do not operate in areas where exhaust fumes could accumulate without
wearing appropriate respiratory protection. Consult your employer and
OSHA regarding use of appropriate respirator for dangerous carbon
monoxide gases. See Figure 2.
AVOID STATIC ELECTRICITY RISK WHEN FUELING
WARNING: Ultra-Low Sulfur Diesel (ULSD) poses a greater static ignition
hazard. Consult with your fuel or fuel system supplier to ensure the deliv-
ery system is in compliance with fueling standards for proper grounding
and bonding practices. Maintaining a discharge strap must be connect-
ed to any U.S.SAWS vacuum at all times when equipment is being used.
Read and understand
operator's manualbefore
using this machine.
Failure to follow operating
Instructions could result
in injury or damage to
equipment.
Use only diamond blades (steel
centered diamond cutting-off
wheels) with this machine. RPM
rating on blade must exceed
machine max rpm rating. The use
of any other blade could result in
death or serious injury.
5400 MAX. RPM
Avoid injury.
Do NOT operate with
guard removed.
Replace guard before
operating machine.
C1h azard Comm unication Syw ems. LLLLCCMMOO--774466--00224411
To avoid injury:
Always inspect saw
blades before use.
Replace all cracked or damaged
blades.
Rotating blade
hazard.
Do NOT operate with
guard up.
Keep hands and feet
away.
Engine exhaust
contains poisonous
ccaarrbboonnmmoonnooxxiiddeeggaass..
Breathing it could cause
death.
Operate machine in well
ventilated area.
This product can expose you to chemicals, including NICKEL. When used, serviced, cleaned, or maintained equipment could generate particulates
that contain chemicals, including silica. These chemicals are known to the state of California to cause cancer and birth defects or other
reproductive harm. For more information, visit www.P65Warnings.ca.gov
4.0 Rules for safer operation
Engine exhaust contains poi-
sonous carbon monoxide gas.
Breathing it could cause death.
Operate machine in well venti-
lated area.
Wear proper electrostatic
grounding equipment at all
times. Static discharge during
fueling can cause explosion
Figure 2 - Warning label - engine exhaust contains carbon monoxide gas 11
5.3 Observe the condition of your work environment. Walk over
area work area and look for hazards. Make sure the work environment is
safe and meets all safe-working conditions discussed in section 4, Rules
for safer operation.
5.4 Obtain MATERIAL SAFETY DATA SHEET (MSDS) for all work
surface materials. This includes primers, all coatings, adhesives, tile and
crack lling materials, etc. Do not attempt to cut, clean out, or remove
material without MSDS information. Consult MSDS sheet for health haz-
ards information. Be aware that some materials are explosive as a dust
WARNING: The JS SERIES SAWS maximum blade operating speed is
5400 rpm as labeled on the blade guard. Use only dry cut diamond
blades rated higher than 5400 rpm safe operating speed. Do not use
a blade rated for less than 5400 rpm. Do not use a blade that is not a
dry cut diamond blade. Using a non dry cut diamond blade or a blade
rated below 5400 rpm could result in severe blade failure, personal
injury or death. See Figure 8 and Figure 9. Never cut material for which
the blade was not designed. Check blade manufacturer’s guidelines on
material to be cut. Never operate a blade in the wrong rotation direc-
tion. Verify blade direction when changing blades. The JS is designed
to cut in a straight line. Never attempt to cut any pattern or follow any
joint that is not a straight line.
Surface Prep
Division
P: 877-817- 6687 F: 813-621-7125
Visit us at www.ussaws.com
5.0 PRE-OPERATION CHECKLIST
