Waterworks U.S. SAWS ACH-GB16 User manual

U.S.SAWS AIR POWERED
CHAIN SAW
OPERATING MANUAL
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
U.S. English
Notice of Copyright Protection
Copyright 2020, by U.S.SAWS . All rights reserved. This work may not be reproduced or disseminated in whole or in part by any
means without the prior written permission of U.S.SAWS
Waterworks
Division
P: 866 987-7297 F: 813-621-7125
Visit us at www.ussaws.com
[email protected]

INTRODUCTION & SPECIFICATIONS
Read this entire operations and maintenance manual before using your new
tool. Pay close attention to the rules for safer operation.
Dangers, Warnings and Cautions.
The purpose of safety symbols and explanations are to attract your atten-
tion to possible hazards and how to avoid them. The safety symbols and
explanations do not by themselves eliminate any danger. The instructions
or warnings they give are not substitutes for proper accident prevention
measures.
Table of Contents & Introduction ..................................................... 2
Symbols & Decals ................................................................... 3
Safety Instruction ................................................................... 4 - 5
Pre-Operation Checklist ......................................................6 - 10
Operation ................................................................... 11 - 12
Parts Breakdown ................................................................ 13 - 15
Warranty & Service ............................................................. 16 - 17
Section Page
1.0 INSTRUCTIONS FOR USE OF MANUAL SECTIONS
2.0 SPECIFICATIONS
Foreword/Introduction
DANGER: Indicates an imminently hazardous situation that if not avoided,
will result in death or serious injury. This signal word is limited to the most
extreme situations.
WARNING: Indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation that, if not avoided
may result in minor or moderate injury. It may also be used to alert against
unsafe practices that may cause property damage.
The owner’s manual is intended to point out some of the basic safety situa-
tions that maybe encountered during the normal operation & maintenance
of the Air Powered Chain Saw Saw Machine & to instruct you in safety prac-
tices for dealing with these conditions. Keep all manuals provided with your
machine in a safe place at all times.
The information and specications included in this publication were
in effect at the time of approval for printing. U.S.SAWS reserves the right,
however, to discontinue or change specications or design at any time with-
out notice and without incurring any obligation.
U.S.SAWS ACH-GB series chains saws are designed for demanding jobs that
require cutting of ductile iron and other types of pipe. You can also pair with
our standard concrete chain to create a concrete cutting saw. This type of
concrete cutting is ideal for applications requiring square corners without
overlapping cuts. It has the capabilities of a plunge cut up to 16” deep.
It can be powered with commonly used power sources. The ACH-GB line of
chain saws has the power you need to get the job done quickly and safely.
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
Model ACH-GB16 ACH-GB20
Part Number US60466 US60502
Power Source Gearbox Gearbox
Air Requirements 90 cfm @ 90 psi 90 psi @ 90cfm
RPM 3300 3300
Maximum Cutting
Depth
16” 20”
Weight 27 lbs 32 lbs
Waterworks
Division
P: 866 987-7297 F: 813-621-7125
Visit us at www.ussaws.com
[email protected]
2

Waterworks
Division
P: 866 987-7297 F: 813-621-7125
Visit us at www.ussaws.com
[email protected]
SYMBOLS & DECALS
WARNING
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
WARNING
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
WARNING
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
Read and understand operator’s
manual before using this machine.
Failure to follow operating Instruc-
tions could result in injury or dam-
age to equipment.
Flying debris and loud noise
hazards. Wear ear and eye
protection
Wear safety boots when
operating this machine
Wear appropriate clothing
Wear hand protection
Rotating chain hazard.
Keep hands and feet away.
Engine exhaust contains poi-
sonous carbon monoxide gas.
Breathing it could cause death.
Operate machine in well venti-
lated area.
Wear Head Protection, breath-
ing protection, and the use of
hearing protection is manda-
tory
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
For Safe Operation
You must be qualied for safe operation of the U.S.SAWS Air Powered
Chain Saw Saw machine. You must clearly understand the written in-
structions supplied by U.S.SAWS, be trained - including actual operation
- & know the safety rules & regulations for the job site. It is a safety prac-
tice to point out & explain safety signs & practices to others & to make
sure they understand the importance of following these instructions.
Be Safe
Human error is the result of many factors: carelessness, fatigue, sensory
overload, preoccupation, unfamiliarity with the machine or attachments,
or drugs or alcohol, to name a few. You can avoid serious injury or death
caused by these & other unsafe work practices. Be safe and never as-
sume accidents cannot happen to you.
For your safety and the safety of others, act safely and encourage your
fellow workers to act safely as well.
Wear proper electrostatic
grounding equipment at all
times.
3.0 SYMBOLS & DECALS
3

SAFETY INSTRUCTIONS
Waterworks
Division
P: 866 987-7297 F: 813-621-7125
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[email protected]
4.1 KNOW THE RULES & YOUR EQUIPMENT.
Most job sites have rules governing equipment use & maintenance.
Before starting at a new work location, check with the supervisor or
safety coordinator. Ask about any rules or regulations you need to
abide.
OSHA enforces federal laws within the United States that apply to the
safe operation, application, & maintenance of equipment on job sites.
It is the employer’s responsibility to comply with these laws.
Do not operate this machine unless you have read the operations and
maintenance manual carefully.
4.2 RECEIVE PROPER TRAINING.
Do not operate this machine unless you have received operational and
maintenance training from a U.S. SAWS representative or from an autho-
rized distributor for U.S.SAWS.
4.3 PROTECT YOUR FEET.
Observe all applicable local, state and federal safety regulations. Wear
OSHA approved foot protection.
4.4 PROTECT YOUR EYES.
Observe all applicable local, state and federal safety regulations. Wear
OSHA approved safety glasses.
4.5 PROTECT YOUR LUNGS.
Breathable silica may be generated by use of this product. Silica can
cause severe and permanent lung damage, cancer, and other serious
diseases. Do not breath the dust. Do not rely on your sight or smell to
determine if the dust is in the air. Silica may be in the air without a vis-
ible dust cloud. If air monitoring equipment for silica is not provided by
your employer at your work site, you MUST wear appropriate respiratory
protection when using or servicing the machine. Consult your employer
and OSHA regarding the appropriate respiratory protection.
4.6 PROTECT YOUR HEARING.
Observe all applicable local, state and federal safety regulations. Wear
OSHA approved hearing protection.
4.7 DRESS PROPERLY.
Do not wear loose clothing or jewelry that can be caught in moving parts.
Wear protective hair covering to contain long hair. Keep hair away from
motor air vent. Rubber gloves and non-skid footwear are recommended
when working outdoors.
4.8 AVOID A DANGEROUS ENVIRONMENT.
Do not expose machine to rain. Do not use machine in wet conditions.
Water entering a power tool will increase the risk of electric shock. Keep
work area well lit. When working at an elevated location, pay attention to
articles and persons below. If operating the power tool in damp locations
is unavoidable, use a Ground Fault Circuit Interrupter (GFCI) protected
supply. Use of an GFCI reduce the risk of electric shock.
4.9 AVOID ANY AREAS OR ACTIONS THAT EXPOSE YOU TO CARBON
MONOXIDE.
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 monox-
ide gases.
4.10 KEEP WORK AREA CLEAN. DO NOT RUN OVER ANYTHING.
Loose objects could be thrown from crack. Make sure area to be cut is
clear from people and any loose objects, nuts, bolts, etc. Never run over
any loose objects.
4.11 KEEP CHILDREN AND VISITORS AWAY.
Do not allow anyone to stand in line with the cut path. Do not let children or
visitors contact machine or extension cord. Keep children and visitors away
from the work area.
4.12 KEEP FIRM GRIP ON MACHINE.
During normal operation as instructed in Section 6.0, keep a rm hold
on the handle grips and maintain control of the machine until the chain
completely stops.
4.13 SHUT OFF MACHINE.
When not in use, before servicing and when changing accessories shut
off motor. Release the lever switch and move the on/off switch to the OFF
position. Move the fuel valve lever to the OFF position.
4.14 STORE IDLE EQUIPMENT.
The machine and tools should be stored in a dry and secure location when
not in use. Keep equipment out of reach of children.
4.15 OBTAIN MATERIAL SAFETY DATA SHEET (MSDS) FOR ALL
WORK SURFACE MATERIALS.
This includes primers, all coatings, adhesives, tile and crack lling materi-
als, etc. Do not attempt to cut, clean out or remove material without MSDS
information. Consult MSDS sheet for hazards information. Be aware that
some materials are explosive as a dust.
4.16 DO NOT OVERREACH.
Keep proper footing and balance at all times.
4.17 MAINTAIN MACHINE WITH CARE.
Keep machine clean and follow maintenance procedures for better and
safer performance. Keep handles dry, clean, and free from oil and grease.
Follow instructions for lubricating and changing accessories.
4.18 REMOVE ADJUSTING TOOLS.
Form a habit of checking to see that tools such as adjusting wrenches are
removed from the machine and properly stored before starting the motor.
4.19 STAY ALERT.
Watch what you are doing. Use common sense. Do not operate machine
when you are tired or fatigued.
4.0 SAFETY INSTRUCTIONS
4

SAFETY INSTRUCTIONS
Waterworks
Division
P: 866 987-7297 F: 813-621-7125
Visit us at www.ussaws.com
[email protected]
4.20 DO NOT USE DRUGS, ALCOHOL, MEDICATION.
Do not operate machine while under the inuence of drugs, alcohol,
or any medication.
4.21 KEEP THE RIGHT PARTS IN THE RIGHT POSITIONS.
Do not operate machine with parts missing or improperly mounted.
4.22 CHECK DAMAGED PARTS.
Verify all parts are in good condition and will function properly before us-
ing 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. Do not operate machine if lever or motor on/off
switch does not function properly.
4.23 SECURELY MOUNT ACCESSORIES TO THE MACHINE.
Extra care must be taken on elevated location to prevent injury to some-
one on a lower level in the event the tool or accessory should drop. Do
not operate without fall protection for operator and debris protection for
public.
4.24 NEVER TOUCH THE MOVING PARTS.
Never touch moving parts such as chains, belts and others.
4.25 STOP OPERATION IMMEDIATELY IF ANY ABNORMALITY IS
DETECTED.
Stop using machine immediately if any abnormalities are observed during
operation. Examples of abnormalities include unusual noise and vibration.
4.26 WHEN REPLACING A PART, USE THE SAME TYPE
AND QUALITY.
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.
4.27 LOAD AND UNLOAD SAFELY.
Use proper heavy lifting procedures. Read & understand manuals before
loading & unloading.
4.28 SAVE THESE INSTRUCTIONS.
Refer to this operations and maintenance manual as well as any addition-
al instructions included from other manufacturers and organizations such
as the Masonry and Concrete Saw Manufacturers Institute®. Never permit
anyone to operate the machine without proper instructions.
DUST WARNING
Cutting, especially when DRY cutting, generates dust that comes
from the material being cut, which frequently contains silica.
Silica is a basic component of sand, quartz, brick clay, granite and
numerous other minerals and rocks. Exposure to excessive amount of
such dust can cause:
• Respiratory diseases (affecting your ability to breath), including
chronic bronchitis, silicosis and pulmonary brosis from exposure
to silica. These diseases may be fatal;
• Skin irritation and rash; and
• Cancer according to NTP* and IARC*
* National Toxicology Program, International Agency for Research
on Cancer
Take precautionary steps
• Avoid inhalation of and skin contact with dust, mist and fumes;
• Wet cut when feasible, to minimize dust;
• Wear and ensure that all bystanders wear appropriate respiratory
protection such as dust masks designed to lter out microscopic
particles. (See OSHA 29 CFR Part 1910.1200)
California Prop 65 Warning: Use of this product can cause exposure to
materials known to the State of California to cause cancer and/or birth
defects or other reproductive harm.
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
5

WARNING: Chain breakage can result in high-speed ejection of parts,
which can result in death or serious personal injury to operators or
bystanders. The items listed below are critical to minimizing the risk of
chain breakage and injury.
5.4 DO NOT operate a diamond chain saw with damaged, modi-
ed, broken, or missing side cover, bottom guard ap. The side cover,
bottom guard, and guard ap provide protection against contact with
moving parts, ejected debris, broken chain, thrown water and concrete
slurry.
5.5 DO NOT operate a saw with loose, missing, damaged, or im-
properly repaired parts.
5.6 DO NOT install or run the chain backwards. The bumper must
lead the segment into the cut. (Applies to concrete chains only.)
F/N 70944 May 2011 © 2011 ICS, Blount Inc.
TITLE633GC / 633F4 OPERATOR’S MANUAL
5
SAFETY
WARNING
THE FOLLOWING SYMBOL APPLIES TO ALL THE ITEMS LISTED ON THIS PAGE
A potentially hazardous situation exists which, if not avoided,
could result in death or serious injury.
Chain breakage can result in high-speed ejection of parts, which can result in death or
serious personal injury to operators or bystanders. The items listed below are critical to
minimizing the risk of chain breakage and injury.
• DO NOT operate a diamond chainsaw with a damaged, modified, broken, or missing side
cover, bottom guard, or guard flap. The side cover, bottom guard, and guard flap provides
protection against contact with moving parts, ejected debris, broken diamond chain,
thrown water and concrete slurry.
• DO NOT operate a saw with loose, missing, damaged or improperly repaired parts.
• DO NOT install or run the chain backwards. The bumper must lead the segment into
the cut.
• DO NOT insert a diamond chainsaw into a slot narrower than the chain segments. Rapid
pushback might occur. Reference: Most diamond segments are .225 inches (5.72 mm)
wide.
• DO NOT use damaged, modified or improperly repaired chain.
• DO NOT run a diamond chainsaw upside-down. Concrete debris can fly back into the
operator’s face.
• NEVER cut ductile iron pipe with the saw (except when using PowerGritTM Cutting
System). Segment loss or diamond chain breakage may occur.
• See page 16 for information about cutting ductile iron pipe with PowerGritTM.
5.7 DO NOT insert a diamond chain saw into a slot narrower than the
chain segments. Rapid push back might occur. Reference: Most diamond
segments are .225 inches (5.72 mm) wide.
5.8 DO NOT use damaged, modied or improperly repaired chain.
5.9 DO NOT run a diamond chain saw upside-down. Concrete debris
can y back into the operator’s face.
5.10 DO NOT cut ductile iron pipe with concrete chain. Segment loss or
diamond chain breakage may occur.
5.11 DO NOT cut concrete with ductile iron chain. Segment loss or
diamond chain breakage may occur.
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.
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 3 - Warning label - read and understand manual
5.1 Start by reading the entire Air Powered Chain Saw opera-
tions and maintenance manual. Get familiar with the machine’s
parts.
TO PREVENT SERIOUS INJURY DO NOT OPERATE SAW WITHOUT PROPER
TRAINING AND. UNDERSTANDING OF THE OWNERS MANUAL
WHEN OPERATING THIS MACHINE
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
WARNING
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
Wear proper electrostatic
grounding equipment at all
times.
5.2 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.
5.3 Obtain SAFETY DATA SHEET (SDS) for all work surface materi-
als. This includes primers, all coatings, adhesives, tile and crack lling
materials, etc. Do not attempt to cut, clean out, or remove material
without SDS information. Consult SDS sheet for health hazards informa-
tion. Be aware that some materials are explosive as a dust
5.0 PRE-OPERATION CHECKLIST
PRE-OPERATION CHECKLIST
Rotating chain
hazard.
Keep hands
and feet away.
6
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[email protected]

PRE-OPERATION CHECKLIST
Guide Bar and Diamond Chain Installation
5.14 STEP 3: Mount the diamond chain on the guide bar start-
ing at the drive sprocket and continue over the guide bar nose.
5.15 STEP 4: Install the side cover and ensure chain adjust-
ment pin engages hole in bar. Do not fully tighten side cover until
after chain is properly tensioned.
5.16 STEP 5: Make sure all the drive links are inside the guide
bar groove then lift the bar nose and tension the chain by turning
the screw clockwise.
5.17 STEP 6: Before cutting, check for proper tension by pull-
ing the chain around the bar by hand. If you cannot easily pull by
hand, the chain is too tight and needs to be loosened slightly.
5.18 STEP 7: Before cutting, check for proper tension by pulling
the chain around the bar by hand. If you cannot easily pull by hand,
the chain is too tight and needs to be loosened slightly.
5.19 STEP 8: Continue to lift up on the nose of the guide bar and
rmly tighten the side cover nut.
CAUTION: Be aware that the guide bar rails may develop
sharp edges over time so always pull the diamond chain
by the diamond segments.
5.12 STEP 1: Loosen side cover nut an remove side cover.
5.13 STEP 2: Place bar onto saw chassis and ensure the bar
sits over bar spacers on stud bolts.
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7
NOTE: To prevent chain tensioner breakage, be sure the side
cover nut is tightened to approximately 20-25 ft-lbs
5.20 STEP 9: Attach to water source with pressure not less
than 20 psi.

GUIDE BAR AND DIA-
WARNING: Never attempt to shorten chain by removing
links. This is not an option for extending tool life.
CAUTION: A properly tensioned chain will optimize cutting performance.
The tensioning rule of thumb for a concrete cutting chain saw is that
a properly tensioned chain must be bowstring tight and can be pulled
freely around the guide bar by hand easily without binding.
5.24 WHEN TO TENSION
All chains have a tendency to stretch when used. Diamond chains
stretch more than wood cutting chains because of the abrasive
materials they are cutting. When a chain stretches to a point where the
drive links are hanging approximately 1/2 inch to 3/4 inch below the
bar, it’s time to tension the chain.
PRE-OPERATION CHECKLIST
PROPER CHAIN TENSION
5.21 HOW TO CHECK
Before cutting, check for proper tension by pulling the chain
around the bar by hand. If you cannot easily pull by hand, the
chain is too tight and needs to be loosened.
5.22 CHAIN TOO LOOSE
If the chain is too loose, it could come off the bar, or it will allow
the drive sprocket to spin without turning the chain which can
damage drive links. When a chain stretches to a point where the
drive links are hanging approximately 1/2 in (12mm) to 3/4 in
(18mm) below the bar, it is time to replace the chain even if there
seems to be usable segment left. The chain typically determines
life rather than the segments wear.
5.23 CHAIN TOO TIGHT
If the chain is too tight, much of the saw’s power goes into turning
the chain rather than into the cut. In extreme over-tightened
cases, the saw may not be able to turn the chain at all. In addition,
damage can occur to the bar nose and premature chain stretch
may occur.
IMPORTANT
A properly tensioned chain will optimize cutting performance. The tensioning rule of thumb for
a concrete cutting chain saw is that a properly tensioned diamond chain must not be bowstring
tight and can be pulled freely around the guide bar by hand easily without binding.
PROPER CHAIN TENSION
If the chain is too loose, it could come off the bar, or it will allow the drive
sprocket to spin without turning the chain, which can chew up the chain drive
links. If the chain is too tight, a lot of the saw’s power goes into turning the
chain rather than into the cut. In extreme over-tightened cases, the saw may not
be able to turn the chain at all. In addition, damage can occur to the bar nose
and premature stretch may occur.
HOW TO CHECK
Before cutting, check for proper tension by pulling the chain around the bar
by hand. If you cannot easily pull by hand, the chain is too tight and needs to
be loosened.
WHEN TO TENSION
All chains have a tendency to stretch when used. Diamond chains stretch
more than wood cutting chains because of the abrasive materials they are
cutting. When a chain stretches to a point where the drive links are hanging
approximately 1/2 in- 3/4 in (12 - 18 mm)below the bar, it’s time to tension
the chain.
HOW TO TENSION
To tension the chain, first loosen the side cover nuts, then while holding the nose of
the bar up, use a screw driver to turn the tensioning screw clockwise until the chain
drive links hanging below the bar are just beginning to enter the bar groove. Continue
to hold up on the nose of the bar and firmly tighten the side cover nuts, (20 ft-lbs,
27 Nm). And remember, it’s the side cover nuts that hold the bar in position.
HOW TO PREVENT CHAIN TENSIONER BREAKAGE
Do not attempt to adjust the tensioner without first loosening the side cover nuts. Do
not use the saw without making sure the side cover nuts are tight. If the side cover nuts
are not tight, the bar can slip backwards during cutting and break the tensioner pin.
correct chain tension
chain chain
too loose too tight
IMPORTANT
A properly tensioned chain will optimize cutting performance. The tensioning rule of thumb for
a concrete cutting chain saw is that a properly tensioned diamond chain must not be bowstring
tight and can be pulled freely around the guide bar by hand easily without binding.
PROPER CHAIN TENSION
If the chain is too loose, it could come off the bar, or it will allow the drive
sprocket to spin without turning the chain, which can chew up the chain drive
links. If the chain is too tight, a lot of the saw’s power goes into turning the
chain rather than into the cut. In extreme over-tightened cases, the saw may not
be able to turn the chain at all. In addition, damage can occur to the bar nose
and premature stretch may occur.
HOW TO CHECK
Before cutting, check for proper tension by pulling the chain around the bar
by hand. If you cannot easily pull by hand, the chain is too tight and needs to
be loosened.
WHEN TO TENSION
All chains have a tendency to stretch when used. Diamond chains stretch
more than wood cutting chains because of the abrasive materials they are
cutting. When a chain stretches to a point where the drive links are hanging
approximately 1/2 in- 3/4 in (12 - 18 mm)below the bar, it’s time to tension
the chain.
HOW TO TENSION
To tension the chain, first loosen the side cover nuts, then while holding the nose of
the bar up, use a screw driver to turn the tensioning screw clockwise until the chain
drive links hanging below the bar are just beginning to enter the bar groove. Continue
to hold up on the nose of the bar and firmly tighten the side cover nuts, (20 ft-lbs,
27 Nm). And remember, it’s the side cover nuts that hold the bar in position.
HOW TO PREVENT CHAIN TENSIONER BREAKAGE
Do not attempt to adjust the tensioner without first loosening the side cover nuts. Do
not use the saw without making sure the side cover nuts are tight. If the side cover nuts
are not tight, the bar can slip backwards during cutting and break the tensioner pin.
correct chain tension
chain chain
too loose too tight
Waterworks
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8
© 2011 ICS, Blount Inc. F/N 70944 May 2011
TITLE 633GC / 633F4 OPERATOR’S MANUAL
10
SET-UP
GUIDE BAR AND DIAMOND CHAIN INSTALLATION
STEP 7
Allchainshaveatendencytostretch
when used. Diamond chains stretch more
than wood cutting chains because of the
abrasive materials they are cutting. When
a chain stretches to a point where the drive
linksarehangingapproximately1/2”
(12mm)to3/4”(18mm)**belowthebar,
it’s time to tension the chain. See Note 2.
STEP 6
If the chain is too loose, it could come off
thebar,oritwillallowthedrivesprocketto
spin without turning the chain, which can
chewupthechaindrivelinks.Ifthechain
is too tight, a lot of the saw’s power goes
into turning the chain rather than into the
cut.Inextremeover-tightenedcases,the
saw may not be able to turn the chain at
all. In addition, damage can occur to the
bar nose and premature stretch may occur.
See Note 1.
STEP 8
Beforecutting,checkforpropertensionby
pulling the chain around the bar by hand. If
you cannot easily pull by hand, the chain is
too tight and needs to be loosened a little.
See Note 3.
** As measured without pulling
downward (eg. hanging by gravity)
3/4" (18 mm)**
STEP 5
Makesureallthedrivelinksareinside
the guide bar groove then lift the bar nose
and tension the chain by turning the screw
clockwise.

PRE-OPERATION CHECKLIST
5.27 Concrete and ductile iron cutting chain saws operate with
looser chain tension than wood chain saws. It is common, especially
on gas powered, concrete cutting chain saws to have the drive links
hang completely out of the bar. Wood cutting chain saws use oil
to lubricate the chain. The oil makes the chain very slippery and
allows the drive links to fully nest between the teeth of the drive
sprocket. Concrete and ductile iron cutting chain saws require water
for cooling and ushing the cut. Water is not as good as oil as a
lubricant. Also, there is debris mixed in with the water. As a result,
sometimes the drive links do not nest properly on the drive sprocket.
When this happens, the chain acts like it got tighter. There seems
to be tight spots and loose spots as you pull the chain around the
AddITIONAl INfORmATION
-
pletely out of the bar. Wood cutting chainsaws use oil to lubricate
the chain. The oil makes the chain very slippery and allows the
drive links to fully nest between the teeth of the drive sprocket.
Concrete cutting chainsaws require water for cooling and flushing
the cut. Water is not as good as oil as a lubricant. Also, there are
concrete particles mixed in with the water. As a result, sometimes
the drive links do not nest properly on the drive sprocket. When
this happens, the chain acts like it got tighter. There seems to be
correct chain tension
tight spots and loose spots as you pull the chain around the bar.
If you tension when the chain is in one of the loose spots, it will
be too tight at some point in it’s rotation around the bar. Rotating
the chain completely around the bar by hand will let you know you
have the chain properly tensioned.
AddITIONAl TENSIONING TIPS:
bar. If you tension when the chain is in one of the loose spots, it will be
too tight at some point in it’s rotation around the bar. Rotating the chain
completely around the bar by hand will let you know you have the chain
properly tensioned.
5.28 ADDITIONAL TIPS
1. To reduce chain stretch and tensioning downtime, a minimum water
supply should be used:
- For ductile applications, a pump sprayer is sufcient.
- For concrete applications us 20 psi or greater water pressure.
2. Oil the chain at the end of the day to prevent rust but be careful not to
over tension in this condition.
3. When pulling the chain around the bar by hand, be careful not to touch
the bar with thumb or forenger. The bar rails can be very sharp. Grab
only the diamond segments to pull the chain.
4. Always turn the engine off before tensioning the chain.
AddITIONAl INfORmATION
-
pletely out of the bar. Wood cutting chainsaws use oil to lubricate
the chain. The oil makes the chain very slippery and allows the
drive links to fully nest between the teeth of the drive sprocket.
Concrete cutting chainsaws require water for cooling and flushing
the cut. Water is not as good as oil as a lubricant. Also, there are
concrete particles mixed in with the water. As a result, sometimes
the drive links do not nest properly on the drive sprocket. When
this happens, the chain acts like it got tighter. There seems to be
correct chain tension
tight spots and loose spots as you pull the chain around the bar.
If you tension when the chain is in one of the loose spots, it will
be too tight at some point in it’s rotation around the bar. Rotating
the chain completely around the bar by hand will let you know you
have the chain properly tensioned.
AddITIONAl TENSIONING TIPS:
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9
IMPORTANT
A properly tensioned chain will optimize cutting performance. The tensioning rule of thumb for
a concrete cutting chain saw is that a properly tensioned diamond chain must not be bowstring
tight and can be pulled freely around the guide bar by hand easily without binding.
PROPER CHAIN TENSION
If the chain is too loose, it could come off the bar, or it will allow the drive
sprocket to spin without turning the chain, which can chew up the chain drive
links. If the chain is too tight, a lot of the saw’s power goes into turning the
chain rather than into the cut. In extreme over-tightened cases, the saw may not
be able to turn the chain at all. In addition, damage can occur to the bar nose
and premature stretch may occur.
HOW TO CHECK
Before cutting, check for proper tension by pulling the chain around the bar
by hand. If you cannot easily pull by hand, the chain is too tight and needs to
be loosened.
WHEN TO TENSION
All chains have a tendency to stretch when used. Diamond chains stretch
more than wood cutting chains because of the abrasive materials they are
cutting. When a chain stretches to a point where the drive links are hanging
approximately 1/2 in- 3/4 in (12 - 18 mm)below the bar, it’s time to tension
the chain.
HOW TO TENSION
To tension the chain, first loosen the side cover nuts, then while holding the nose of
the bar up, use a screw driver to turn the tensioning screw clockwise until the chain
drive links hanging below the bar are just beginning to enter the bar groove. Continue
to hold up on the nose of the bar and firmly tighten the side cover nuts, (20 ft-lbs,
27 Nm). And remember, it’s the side cover nuts that hold the bar in position.
HOW TO PREVENT CHAIN TENSIONER BREAKAGE
Do not attempt to adjust the tensioner without first loosening the side cover nuts. Do
not use the saw without making sure the side cover nuts are tight. If the side cover nuts
are not tight, the bar can slip backwards during cutting and break the tensioner pin.
correct chain tension
chain chain
too loose too tight
5.26 HOW TO PREVENT CHAIN TENSIONER BREAKAGE
Do not attempt to adjust the tensioner without rst loosening the
side cover nuts. Do not use the saw without making sure the side
cover nuts are tight. If side cover nuts are not tight, the bar can slip
backwards during cutting and break the tensioner pin.
5.25 HOW TO TENSION
To tension the chain, rst loosen the side cover nuts, then while
holding the nose of the bar up, use a screwdriver to turn the
tensioning screw clockwise until the chain drive links hanging below
the bar are just beginning to enter the bar groove. Continue to hold
up on the nose of the bar and rmly tighten the side cover nuts. And
remember, it’s the side cover nuts that hold the bar in position.
IMPORTANT
A properly tensioned chain will optimize cutting performance. The tensioning rule of thumb for
a concrete cutting chain saw is that a properly tensioned diamond chain must not be bowstring
tight and can be pulled freely around the guide bar by hand easily without binding.
PROPER CHAIN TENSION
If the chain is too loose, it could come off the bar, or it will allow the drive
sprocket to spin without turning the chain, which can chew up the chain drive
links. If the chain is too tight, a lot of the saw’s power goes into turning the
chain rather than into the cut. In extreme over-tightened cases, the saw may not
be able to turn the chain at all. In addition, damage can occur to the bar nose
and premature stretch may occur.
HOW TO CHECK
Before cutting, check for proper tension by pulling the chain around the bar
by hand. If you cannot easily pull by hand, the chain is too tight and needs to
be loosened.
WHEN TO TENSION
All chains have a tendency to stretch when used. Diamond chains stretch
more than wood cutting chains because of the abrasive materials they are
cutting. When a chain stretches to a point where the drive links are hanging
approximately 1/2 in- 3/4 in (12 - 18 mm)below the bar, it’s time to tension
the chain.
HOW TO TENSION
To tension the chain, first loosen the side cover nuts, then while holding the nose of
the bar up, use a screw driver to turn the tensioning screw clockwise until the chain
drive links hanging below the bar are just beginning to enter the bar groove. Continue
to hold up on the nose of the bar and firmly tighten the side cover nuts, (20 ft-lbs,
27 Nm). And remember, it’s the side cover nuts that hold the bar in position.
HOW TO PREVENT CHAIN TENSIONER BREAKAGE
Do not attempt to adjust the tensioner without first loosening the side cover nuts. Do
not use the saw without making sure the side cover nuts are tight. If the side cover nuts
are not tight, the bar can slip backwards during cutting and break the tensioner pin.
correct chain tension
chain chain
too loose too tight

PRE-OPERATION CHECKLIST
5.29.1 Assess pipe and area to cut. Ensure the chain saw will
pass freely around any objects in and around the path of the cut.
(ie: power lines, telecommunication lines, rocks, tools, etc.)
Ideally the pipe clamp should be mounted in a position that allows
the locking pliers to be on the top side of the pipe. This will allow
for easier clamping. US Saws recommends a bottom up cutting
process. This allows two safety functions.
5.29.2 With a bottom cut, a pipe will not sag in a fashion that will
pinch the bar. A top cut could cause pinching as a pipe sags.
The saw will be pulled through the cut by the operator and the bar
will swing away from the operators position. If the tool is pushed
(downward cut) the saw swings towards the operator.
5.29.3 Mount the receiver at a 10 o’clock position. This will allow
the saw to hang in a near vertical orientation.
5.29.4 Slide mounting pin on the saw (see pin installation
instructions) into receiver and install retainer clip.
5.29.5 Clear the area of loose debris that could get caught in the
chain.
5.29.6 Use the saw according to operating instructions. Light
pressure applied to the handles is all that is required. Do not use
levers, hang, or try to increase leverage on the tool. In some cases
stopping your cut just before completion and leaving a tab allows
greater stability while making cuts down-line.
5.29 PIPE CLAMP MOUNTING INSTRUCTIONS
5.29.7 Finish nal cut freehand from the top to complete removal of
section.
5.30 RECEIVER PIN MOUNTING INSTRUCTIONS
5.30.1 Remove the rear bar stud nut.
5.30.2 Install pin on rear bar stud.
5.30.3 The inner thread of the pin will take the place of the nut.
5.30.4 In certain applications (larger than 10” pipe) the mounting
pin may need to be relocated to the front bar stud for greater saw
clearance.
5.30.5 Ensure the chain is adjusted according to the chain tensioning
guide.
WARNING: Read and understand instructions provided with
the saw and/or pipe clamp before using this device. Use
caution not to drop saw or strike mounting pin as damage
to the chain tensioning mechanism can occur.
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10

OPERATIONS
WARNING: Never start a diamond chain saw without the bar,
chain and side cover properly assembled. Failure to do so may
result in serious injury.
CAUTION: Always check hose connections before turning on air
compressor.
CAUTION: Hold saw with both hands and ensure the chain is
not contacting any objects.
WARNING: Before cutting, make sure the pipe is in a safe condi-
tion to be cut. Support the piece you are going to be cutting
in such a way that the cut will remain open during the cut and
when the cut is nished. Pinching the chain during the cut could
cause chain breakage and could result in death or serious
injury to the operator.
If using the pipe clamp accessory, the clamp must be attached
in such a way that it does not move during the cutting operation
and/or when the cut is nished. Unexpected movement of the
clamp could cause the operator to lose control of the saw result-
ing in death or serious injury.
With the saw engaged in any surface the operator should be
aware that the forces generated by the tool can force debris to
be ejected from the moving chain either away from the saw or
towards the operator. Ensure no bystander is located immedi-
ately in front of or behind the material being cut.
CAUTION: The single most important factor an operator can
control to increase chain life is to use adequate water pressure.
Insufcient water supply will result in excessive wear to the
chain which can lead to loss of strength and chain breakage
and/or damage to the guide bar nose sprocket.
6.0.1 Ensure Proper Chain Installation: Concrete chains should
lead with the bumper segment into the cut. Ductile chains can be
mounted in either direction.
6.0.2 Ensure Proper Chain Tension: The chain should be tight
but easily pulled around the bar by hand.
6.0.3 Ensure all safety devices are properly mounted and func-
tional. Ensure all controls are in working order.
6.0.4 Be sure there are no obstructions (plumbing, electrical
conduit, air ducts, etc.) and no unnecessary people present.
6.0.5 Always wear protective clothing, including hard hat, eye
protection, hearing protection, non-slip safety boots, and gloves.
Avoid wearing loose tting clothing.
6.0.6 Use Adequate Water Supply and Pressure:
Minimum Flow: 1gpm
Recommended Water Pressure: 20psi
6.0.7 Use Proper Air Supply:
Minimum PSI : 90
Minimum CFM: 90
6.0.8 Blow the air supply line clear before connecting to the
saw.
6.0.9 Check oil level; if necessary, re-ll oiler with ice-free air
tool oil.
6.0.10 The chain should travel away from the operator on the top
side of the bar during operation.
6.1.1 Select the proper chain type for the material being cut.
6.1.2 Outline the cut with a permanent marker for a visual cut-
ting edge.
6.1.3 Avoid pinching the guide bar and chain. Always cut the
bottom of an opening rst, then top, and then the sides. Save the
easiest cut for last.
6.1.4 For the straightest cuts in concrete use the “Step Cut”
method. First, score the entire cut line approximately a half-inch
deep using the nose of the bar. Next, deepen the cut by about two
inches. Then, plunge all the way through and complete the cut.
6.1.5 For the straightest cuts in pipe cutting applications cut
from the bottom up using the Pipe Clamp.
6.1.6 Be sure that cut material cannot fall and injure operator or
bystanders.
6.1.7 Check for live electrical wiring near the cut or in the con-
crete to avoid electrocution.
6.1.8 Check for and remove all obstructions (plumbing, electri-
cal conduit, air ducts, etc.) that may interfere with the cut.
6.2.1 All concrete pipe cutting chain saws are considered
specialty tools. The overall cutting speed is slower that some other
types of cutting equipment. For this reason the correct time alloca-
tion should be made so that the operator has time to make the cut
at a safe pace and not have to force the saw to try and increase pro-
duction. Forcing the saw creates unneeded wear on chains, bars,
and drive components. Additionally, long periods of exertion can
cause operator fatigue which can increase the likelihood of injury.
6.0 PRECUT CHECKLIST
6.1 PLANNING THE CUT
6.2 MAKING THE CUT
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OPERATIONS
When using the saw in a hand held fashion a slow rocking mo-
tion will provide the best cutting action. Alternating pressure
from the front of the cut to the rear of the cut offers reliable
results.
The saw will cut slower when cutting through rebar and other
reinforced materials. Allow the saw to run at full speed and use
light pressure. Pushing hard on the tool only increases chain
wear and stretching force adding to wear and increasing the
cost per cut.
6.2.2 When cutting ensure that the water supply is sufcient for
the cut being made.
1. Connect all ttings (Air, Hydraulic, Water).
2. Turn on power supply.
3. Turn on water valve on the saw.
4. Once water is running through the bar apply and hold full
throttle to begin cut.
5. Use full throttle for the entire cut. Feathering the throttle
makes the saw difcult to control.
6.2.3 SLOW CHAIN SPEED
Be sure the compressor is providing the correct air pressure, 90 psi,
and cubic feet per minute, 90 cfm. These are the minimum require-
ments; ideal performance can be achieved at higher volume.
6.2.4 POOR CUTTING PERFORMANCE
Diamonds may be “glazed over”. Make a few cuts in abrasive
material such as cinder block to expose diamonds. In the case of
the pipe cutting chain, the segment does not wear away. However,
the diamonds will wear away leaving a smooth surface.
6.2.5 PREMATURE CHAIN STRETCH
Not enough water pressure. The recommended water pressure is
20 psi. Do not force the chain. Extra force will cause the chain to
stretch faster.
6.2.6 CHAIN TENSIONER BREAKAGE
Side cover nuts are not tight enough.
6.2.7 WATER NOT FLOWING
Water hose is kinked, blockage in guide bar water ports, or water
supply is not turned on.
6.2.8 MOTOR DOES NOT START
Insufcient air supply. Check compressor and air hose, valves, and
air inlet screen for blockage.
6.3 MAINTENANCE
Only proper maintenance can ensure consistent saw performance,
reduction of wear, and thus, a reduction in operation costs and an
increase in service life.
6.3.1 Service life and performance of the chain saw are deter-
mined by:
1. Degree of air purity
2. Lubrication
3. Maintenance
6.3.2 SYSTEM CLEAN-UP
1. Run saw, with water on, for 15 seconds out of cut to ush
slurry and/or debris from chain, bar, and drive.
2. Wash concrete slurry, cutting debris, and/or ductile shavings
from saw assembly.
3. Remove bar and chain. Flush out chain tensioner assembly
location with high water pressure, then lube with grease.
4. Clean all air ttings on saw and compressor.
5. When nished cleaning saw, spray entire saw, chain, bar, and
drive sprocket with a light weight penetrating oil (ie: WD40).
This will minimize rust and reduce build-up on saw assembly.
6.3.3 LUBRICATION
For every 50 hours of operation the motor will need to be greased.
There is a grease tting on the motor. It will need 2 pumps of stan-
dard bearing grease.
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PARTS BREAKDOWN
Ref. Number Part Number Description Note
1 US60510C Hand Guard
2 US60466-3 Handle
3 US60466-5A Handle Spacer
4 US60134 Trigger Guard
5 US60466-1 Chain Chassis
6 US60466-2 Chain Cover
7 US60523 Flap
Not Shown
8 US60466-8 Adjustment Pin
9 US60466-12 Pin Washer
10 US60466-11 E - Clip
11 US60466-7 Adjust Bolt
12 US60530 Stud Bolt 2 Required
13 US60531 Stud Nut 2 Required
14 US60466-6 Bar Spacer 2 Required
6
5
7
4
3
2
1
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7.0 Parts Breakdown

PARTS BREAKDOWN
41
Ref. Number Part Number Description Note
1 02-70018 Governor End Bolt
2 02-70017 Bearing Sleeve
3 02-70070 Bearing
4 02-65013C Gasket
5 02-54069 Large Bearing End Plate
6 02-40044A Roll Pin - Short
7 02-70011L Cylinder - Left Rotation
8 02-70037 Roll Pin - Long
9 02-70013 Vane 4 Required
10 02-70012 Rotor
11 02-70010 Outer Thrust Plate
12 02-6618B Motor Shaft
13 02-70015 Key - Motor Shaft
14 02-55021 Bearing Retainer Clip
15 02-70070 Bearing
16 02-66214 Spring Washer
17 02-66126 Grease Nipple
18 02-66178 Knob - Shaft(Spindle Lock) Items 18-22
Assy 02-
66139
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
39
40
47
48
49
42
44
46
45
43
38
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PARTS BREAKDOWN
19 02-60051 Spring - Spindle Lock
20 02-66177 Spindle Lock Housing
21 02-40044A Roll Pin - Short
22 02-59202 Lock Clip
23 02-66201 Gearbox Housing
24 02-70046 1/4 Lock Washer 2 Required
25 02-70046A Hi-Cap Lockwasher 1/4
26 02-66113 Key - Small Gear
27 02-70047 Gear Box Housing Cap Screw 3 Required
28 02-66150 Low Speed Input Gear
29 02-59261 C-Clip (Gear Retainer)
30 02-66129 Gear Retaining Screw
31 02-66128 Cone Washer
32 02-66290 Gearbox Inner Bearing
33 02-66270 Large Output Gear
34 02-66112 Key Large Gear
35 02-66211 Gearbox Outer Bearing
36 02-66124 Spring Washer
37 02-66123 Gearbox Outer Seal
38 02-59114 Screw - Cover Mounting
39 02-66230 Gearbox Outer Cover
40 02-66147CS Gearbox Output Shaft
41 02-66146 Inner Flange
42 US60466-9 Sprocket Spacer
43 US60466-13 Drive Sprocket
44 02-66145 Outer Flange
45 US60466-10 Disk Spring 2 Required
46 02-66148 Flange Bolt
47 02-66015 Motor Housing
48 US31062 Hi-Cap Lockwasher #10 4 Required
49 02-55048 #10 - 24 x 5/8 4 Required
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WARRANTY AND SERVICE
8.1.1 Warranty
This document is to be used as a guide in determining warranty policies and procedures for U.S.SAWS and its U.S.SAWS products. It is to be used
in determining whether a warranty is justied and as a procedural guide in completing a U.S.SAWS warranty claim form.
8.1.2 Warranty Responsibility
The distributor or the end user must prepare a Machine Warranty Information Card when the machine is delivered. Failure to comply will make
any and all warranties on this equipment null and void. Credit for warranty repairs will be given only after receipt of the WARRANTY CLAIM FORM,
properly completed with all the required details. Submittal details are described later in this document.
8.1.3 Warranty Policy
8.1.3.1 U.S.SAWS warrants its U.S.SAWS products against defects in material and workmanship under normal and proper use for a
period of one year (365) days from the date of delivery; in the case of Rental Fleet Machines, date of assignment to Rental Fleet. Such warranty
is extended only to the buyer who purchases the equipment directly from U.S.SAWS or its authorized distributor. This warranty does not include
expendable parts such as, but not limited to, plugs, cutters, blades, blast wheel, wear parts, liners and seals.
8.1.3.2 The obligation under this warranty is strictly limited to the replacement or repair, at US SAWS’s option, of machines and does
not include the cost of transportation, loss of operating time, or normal maintenance services.
8.1.3.3 This warranty does not apply to failure occurring as a result of abuse, misuse, negligence, corrosion, erosion, normal wear and
tear, alterations or modications made to the machine without express written consent of U.S.SAWS .
8.1.3.4 Warranty request must be submitted in writing within thirty (30) days after failure.
8.1.3.5 Written authorization to return merchandise under warranty must rst be obtained from U.S.SAWS .
8.1.3.6 U.S.SAWS reserves the right to inspect and make the nal decision on any merchandise returned under warranty.
8.1.3.7 U.S.SAWS offers no warranty with respect to accessories, including but not limited to, engines, motors, batteries, electrical
boards, tires and any other parts not manufactured by us but which the original manufacturer warrants.
8.1.3.8 U.S.SAWS reserves the right to make product changes or improvements without prior notice and without imposing any obliga-
tion upon itself to install the same on its products previously sold.
8.1.3.9 The above warranty conditions can only be altered by US SAWS. US SAWS must conrm alterations in writing for each specic
transaction.
8.1.3.10 U.S.SAWS reserves the right to establish specic warranty terms for used or demo machines on an individual transaction basis.
Invoices covering such merchandise will clearly state the provisions of the applicable warranty for each specic transaction.
8.1.3.11 WE DO NOT AUTHORIZE ANY PERSON, REPRESENTATIVE OR SERVICE OR SALES ORGANIZATION TO MAKE ANY OTHER WARRANTY OR TO
ASSUME FOR US ANY LIABILITY IN CONNECTION WITH THE SALE OF OUR PRODUCTS OTHER THAN THOSE CONTAINED HEREIN.
8.1.3.12 UNDER NO CIRCUMSTANCES SHALL US SAWS BE LIABLE TO CUSTOMER OR ANY OTHER PERSON FOR ANY DIRECT, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF ANY WARRANTY OR FOR ANY
SPECIAL OR CONSEQUENTIAL DAMAGES OF ANY CHARACTER, INCLUDING WITHOUT LIMITATIONS, DAMAGES FOR ANY LOSS OF GOODWILL,
WORK STOPPAGE, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES.
8.1.3.13 U.S.SAWS MAKES NO OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE US SAWS PRODUCTS SOLD PURSUANT THERETO.
8.0 WARRANTY AND SERVICE
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WARRANTY AND SERVICE
TO ENSURE THE PROPER WARRANTY COVERAGE IS EXTENDED TO THE OWNER OF THIS MACHINE,
FILL OUT THE ATTACHED CARD COMPLETELY AND ACCURATELY.
WARRANTY REGISTRATION CARD
IMPORTANT! To ensure that your U.S.SAWS machine is covered under warranty, please ll in the following information and mail or
fax it to U.S.SAWS, 8004B E. Broadway Ave. Tampa, FL 33619, Fax No. 714-434-7299
If you are not the owner of record as shown on the manual copy of the warranty registration card, do not operate this
machine before contacting U.S.SAWS at 1-866-987-7297 Verify the following before operating the equipment:
CHANGE OF OWNER OR NEW ADDRESS REGISTRATION CARD
IMPORTANT! To ensure that your U.S.SAWS machine is covered under warranty, please ll in the following information and mail or
fax it to U.S. SAWS, 8004B E. Broadway Ave. Tampa, FL 33619, Fax No. 714-434-7299
COMPANY
COMPANY
NAME
NAME
ADDRESS
ADDRESS
INTENDED USE
INTENDED USE
DATE OF PURCHASE
DATE OF PURCHASE
INTENDED USE
INTENDED USE
SERIAL NUMBER
SERIAL NUMBER
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17