U.S.SAWS ACH GB-16 User manual

Model: ACH GB-16
Operating Manual
Air Powered
Chain Saw
Toll Free 1-877-987-7297
www.ussaws.com
3317 West Warner Avenue
Santa Ana, CA 92704
11 High Street
Sufeld, CT 06078
8004B East Broadway Avenue
Tampa, FL 33619

Table of Contents
Symbols & Labels 3
Safety 4
Set - Up 6
Chain Tensioning 8
Pipe Clamp 10
Operation 12
Troubleshooting 14
Maintenance 15
Parts 16
Introduction
This manual outlines the maintenance and operation of the ACH GB series, air powered chain saw.
This is a professional tool and is intended for use by trained and experienced operators.
To get maximum benet from your saw and to ensure maximum safety, be sure to read this manual
thoroughly. You should also periodically review safety instructions.
2
Air Powered Chain Saw
Specications
Model Number ACH-GB16 ACH-GB20
Part Number US60466 US60502
Power Source Gearbox Gearbox
Air Requirements 90 psi @ 90 cfm 90 psi @ 90 cfm
RPM 3300 3300
Maximum Cutting Depth 16” 20”
Weight 27 lbs 32 lbs

© 2011 ICS, Blount Inc. F/N 70944 May 2011
TITLE 633GC / 633F4 OPERATOR’S MANUAL
4
SYMBOLS & LABELS
THE FOLLOWING SYMBOLS & DEFINITIONS ARE FOUND THROUGHOUT THIS MANUAL AND
ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR UNSAFE PRACTICES.
A potentially hazardous situation exists which, if not avoided,
could result in death or serious injury.
A potentially hazardous situation exists which, if not avoided,
may result in minor or moderate injury or property damage.
A potential situation exists which, if not avoided, may result in
product or property damage.
THE FOLLOWING SYMBOLS & LABELS MAY BE FOUND IN THIS MANUAL OR ON THE SAW
Read the operator’s manual carefully and understand the
contents before you use this equipment.
Always use:
• Protective helmet
• Ear protection
• Protective glasses or full face protection
Wear hand protection
IMPORTANT
WARNING
CAUTION
Symbols & Labels
THE FOLLOWING SYMBOLS AND DEFINITIONS ARE FOUND THROUGHOUT THIS
MANUAL AND ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR
UNSAFE PRACTICES.
3
Air Powered Chain Saw

4
Safety
© 2011 ICS, Blount Inc. F/N 70944 May 2011
TITLE 633GC / 633F4 OPERATOR’S MANUAL
4
SYMBOLS & LABELS
THE FOLLOWING SYMBOLS & DEFINITIONS ARE FOUND THROUGHOUT THIS MANUAL AND
ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR UNSAFE PRACTICES.
A potentially hazardous situation exists which, if not avoided,
could result in death or serious injury.
A potentially hazardous situation exists which, if not avoided,
may result in minor or moderate injury or property damage.
A potential situation exists which, if not avoided, may result in
product or property damage.
THE FOLLOWING SYMBOLS & LABELS MAY BE FOUND IN THIS MANUAL OR ON THE SAW
Read the operator’s manual carefully and understand the
contents before you use this equipment.
Always use:
• Protective helmet
• Ear protection
• Protective glasses or full face protection
Wear hand protection
IMPORTANT
WARNING
CAUTION
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 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.
• 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. (Applies to concrete chains only.)
This symbol applies to all information listed on this page
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.
• 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.
• DO NOT use damaged, modied or improperly repaired chain.
• DO NOT run a diamond chain saw upside-down. Concrete debris can y back into the
operator’s face.
• DO NOT cut ductile iron pipe with concrete chain. Segment loss or diamond chain
breakage may occur.
• DO NOT cut concrete with ductile iron chain. Segment loss or diamond chain breakage
may occur.
Air Powered Chain Saw

5
This symbol applies to all information listed on this page
© 2011 ICS, Blount Inc. F/N 70944 May 2011
TITLE 633GC / 633F4 OPERATOR’S MANUAL
4
SYMBOLS & LABELS
THE FOLLOWING SYMBOLS & DEFINITIONS ARE FOUND THROUGHOUT THIS MANUAL AND
ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR UNSAFE PRACTICES.
A potentially hazardous situation exists which, if not avoided,
could result in death or serious injury.
A potentially hazardous situation exists which, if not avoided,
may result in minor or moderate injury or property damage.
A potential situation exists which, if not avoided, may result in
product or property damage.
THE FOLLOWING SYMBOLS & LABELS MAY BE FOUND IN THIS MANUAL OR ON THE SAW
Read the operator’s manual carefully and understand the
contents before you use this equipment.
Always use:
• Protective helmet
• Ear protection
• Protective glasses or full face protection
Wear hand protection
IMPORTANT
WARNING
CAUTION
• Always turn the compressor source OFF, and ensure air lines are decompressed
and disconnect the chain saw from the air hose (even when the compressor is OFF
when performing maintenance on the saw including chain tensioning.
• Never use equipment that is not functioning properly. Have the saw repaired by a
qualied service personnel.
• Diamond chains require a minimum water pressure of 20 PSI. Insufcient water
supply may result in excessive wear to the chain which can lead to loss of strength
and chain breakage.
• Never start a diamond chain saw unless the bar, chain, and side cover are properly
installed.
General Safety Precautions
• Always wear protective clothing, including hard hat, eye protection, hearing
protection, and gloves.
• Avoid loose tting clothing.
• Perform safety checks before starting each day.
• Always operate tool with solid footing and with both hands on the saw.
• Remove or control slurry to prevent slippery conditions while cutting.
• Be sure there are no obstructions (plumbing, electrical conduit, air ducts, etc.) and
no unnecessary people present.
• Set up a well-marked safety zone with a roped boundary and clear signs.
• Provide adequate ventilation when working in an enclosed area. Breathing exhaust
gases is dangerous.
• To avoid electrocution, check for live electrical wiring near cutting area.
Safety
Air Powered Chain Saw

6
Guide Bar and Diamond Chain Installation
© 2011 ICS, Blount Inc. F/N 70944 May 2011
TITLE 633GC / 633F4 OPERATOR’S MANUAL
4
SYMBOLS & LABELS
THE FOLLOWING SYMBOLS & DEFINITIONS ARE FOUND THROUGHOUT THIS MANUAL AND
ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR UNSAFE PRACTICES.
A potentially hazardous situation exists which, if not avoided,
could result in death or serious injury.
A potentially hazardous situation exists which, if not avoided,
may result in minor or moderate injury or property damage.
A potential situation exists which, if not avoided, may result in
product or property damage.
THE FOLLOWING SYMBOLS & LABELS MAY BE FOUND IN THIS MANUAL OR ON THE SAW
Read the operator’s manual carefully and understand the
contents before you use this equipment.
Always use:
• Protective helmet
• Ear protection
• Protective glasses or full face protection
Wear hand protection
IMPORTANT
WARNING
CAUTION
Set-up
A potentially hazardous situations exists which, if not avoided,
could result in death or serious injury.
A potentially hazardous situation exists which, if not avoided,
may result in minor or moderate injury or property damage.
© 2011 ICS, Blount Inc. F/N 70944 May 2011
TITLE 633GC / 633F4 OPERATOR’S MANUAL
4
SYMBOLS & LABELS
THE FOLLOWING SYMBOLS & DEFINITIONS ARE FOUND THROUGHOUT THIS MANUAL AND
ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR UNSAFE PRACTICES.
A potentially hazardous situation exists which, if not avoided,
could result in death or serious injury.
A potentially hazardous situation exists which, if not avoided,
may result in minor or moderate injury or property damage.
A potential situation exists which, if not avoided, may result in
product or property damage.
THE FOLLOWING SYMBOLS & LABELS MAY BE FOUND IN THIS MANUAL OR ON THE SAW
Read the operator’s manual carefully and understand the
contents before you use this equipment.
Always use:
• Protective helmet
• Ear protection
• Protective glasses or full face protection
Wear hand protection
IMPORTANT
WARNING
CAUTION
© 2011 ICS, Blount Inc. F/N 70944 May 2011
TITLE 633GC / 633F4 OPERATOR’S MANUAL
4
SYMBOLS & LABELS
THE FOLLOWING SYMBOLS & DEFINITIONS ARE FOUND THROUGHOUT THIS MANUAL AND
ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR UNSAFE PRACTICES.
A potentially hazardous situation exists which, if not avoided,
could result in death or serious injury.
A potentially hazardous situation exists which, if not avoided,
may result in minor or moderate injury or property damage.
A potential situation exists which, if not avoided, may result in
product or property damage.
THE FOLLOWING SYMBOLS & LABELS MAY BE FOUND IN THIS MANUAL OR ON THE SAW
Read the operator’s manual carefully and understand the
contents before you use this equipment.
Always use:
• Protective helmet
• Ear protection
• Protective glasses or full face protection
Wear hand protection
IMPORTANT
WARNING
CAUTION
A potential situation exists which, if not avoided, may result in
product or property damage.
Air Powered Chain Saw
STEP 1
Loosen side cover nut an remove side
cover.
STEP 3
Mount the diamond chain on the guidebar
starting at the drive sprocket and continue
over the guidebar nose.
STEP 4
Install the side cover and ensure chain
adjustment pin engages hole in bar. Do not
fully tighten side cover until after chain is
properly tensioned.
STEP 2
Place bar onto saw chassis and ensure the
bar sits over bar spacers on stud bolts.
STEP 5
Make sure all the drive links are inside
the guidebar groove then lift the bar nose
and tension the chain by turning the screw
clockwise.
STEP 6
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.
Be aware that the guidebar rails may
develop sharp edges over time so always
pull the diamond chain by the diamond
segments.
© 2011 ICS, Blount Inc. F/N 70944 May 2011
TITLE 633GC / 633F4 OPERATOR’S MANUAL
4
SYMBOLS & LABELS
THE FOLLOWING SYMBOLS & DEFINITIONS ARE FOUND THROUGHOUT THIS MANUAL AND
ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR UNSAFE PRACTICES.
A potentially hazardous situation exists which, if not avoided,
could result in death or serious injury.
A potentially hazardous situation exists which, if not avoided,
may result in minor or moderate injury or property damage.
A potential situation exists which, if not avoided, may result in
product or property damage.
THE FOLLOWING SYMBOLS & LABELS MAY BE FOUND IN THIS MANUAL OR ON THE SAW
Read the operator’s manual carefully and understand the
contents before you use this equipment.
Always use:
• Protective helmet
• Ear protection
• Protective glasses or full face protection
Wear hand protection
IMPORTANT
WARNING
CAUTION

7
© 2010 ICS, Blount International Inc. Specications are subject to change without notice. REV0611 F/N 545067
TITLE 695GC / 695F4 OPERATOR’S MANUAL
10
SET- UP
GUIDEBAR AND DIAMOND CHAIN INSTALLATION
STEP 6
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.
CAUTION: Be aware that the guidebar
rails may develop sharp edges over time
so always pull the diamond chain by the
diamond segments.
STEP 5
Make sure all the drive links are inside
the guidebar groove then lift the bar nose
and tension the chain by turning the screw
clockwise.
CORRECT CHAIN 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.
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.
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
chew up drive links.
When a chain stretches to a point where
the drive links are hanging approximately
1/2 in (12 mm) to 3/4 in (18 mm) below the
bar, it is time to tension the chain.
CORRECT CHAIN TENSION
CHAIN TOO TIGHT CHAIN TOO LOOSE
Guide Bar and Diamond Chain Installation
Set-up
Air Powered Chain Saw
CORRECT CHAIN TENSION
All chains have a tendency to stretch when
used. Diamond chains stretch more than
wood cutting chains because of the abra-
sive materials they are cutting.
If the chain is too tight, much of the saw’s
power goes to 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.
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.
STEP 7
Continue to lift up on the nose of the
guidebar and rmly tighten the side cover
nut.
NOTE: To prevent chain tensioner
breakage, be sure the side cover nut is
tightened to approximately 20-25 ft-lbs
STEP 8
Attach to water source with pressure not
less than 20 psi.
Never attempt to shorten chain by
removing links. This is not an option for
extending tool life.
© 2011 ICS, Blount Inc. F/N 70944 May 2011
TITLE 633GC / 633F4 OPERATOR’S MANUAL
4
SYMBOLS & LABELS
THE FOLLOWING SYMBOLS & DEFINITIONS ARE FOUND THROUGHOUT THIS MANUAL AND
ARE DESIGNED TO MAKE YOU AWARE OF POTENTIAL HAZARDS OR UNSAFE PRACTICES.
A potentially hazardous situation exists which, if not avoided,
could result in death or serious injury.
A potentially hazardous situation exists which, if not avoided,
may result in minor or moderate injury or property damage.
A potential situation exists which, if not avoided, may result in
product or property damage.
THE FOLLOWING SYMBOLS & LABELS MAY BE FOUND IN THIS MANUAL OR ON THE SAW
Read the operator’s manual carefully and understand the
contents before you use this equipment.
Always use:
• Protective helmet
• Ear protection
• Protective glasses or full face protection
Wear hand protection
IMPORTANT
WARNING
CAUTION

8
Chain Tension
Air Powered Chain Saw
Air Saws • Gas Saws • Pipe Saws • Concrete Saws • Hydraulic Saws
Diamond Blades • Abrasive Blades • Diamond Wire • Electroplated Blades
Quality Saws, Blades, and Services
1 866 987 7297
Visit our website at www.ussaws.com
3317 W. Warner Avenue 11 High Street 8004B E Broadway Ave
Santa Ana, CA 92704 Sufeld, CT 06078 Tampa, FL 33619
Local 714 434 7297 Local 860 668 2402 Local 813 621 8015
Fax [phone] Fax [phone] Fax [phone]
01312013
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
Proper Chain Tension
If the chain is too loose, it could come off the bar, or it will
allow the drive sprocket spin without turning the chain
which can damage the chain drivel inks. 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.
How To Check
Before cutting, check for proper tension by pulling the
chain around the bar by hand. If you cannon 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 inch to 3/4 inch below the
bar, it’s time to tension the chain.
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.
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.
Air Saws • Gas Saws • Pipe Saws • Concrete Saws • Hydraulic Saws
Diamond Blades • Abrasive Blades • Diamond Wire • Electroplated Blades
Quality Saws, Blades, and Services
1 866 987 7297
Visit our website at www.ussaws.com
3317 W. Warner Avenue 11 High Street 8004B E Broadway Ave
Santa Ana, CA 92704 Sufeld, CT 06078 Tampa, FL 33619
Local 714 434 7297 Local 860 668 2402 Local 813 621 8015
Fax [phone] Fax [phone] Fax [phone]
01312013
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
Air Saws • Gas Saws • Pipe Saws • Concrete Saws • Hydraulic Saws
Diamond Blades • Abrasive Blades • Diamond Wire • Electroplated Blades
Quality Saws, Blades, and Services
1 866 987 7297
Visit our website at www.ussaws.com
3317 W. Warner Avenue 11 High Street 8004B E Broadway Ave
Santa Ana, CA 92704 Sufeld, CT 06078 Tampa, FL 33619
Local 714 434 7297 Local 860 668 2402 Local 813 621 8015
Fax [phone] Fax [phone] Fax [phone]
01312013
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
Air Saws • Gas Saws • Pipe Saws • Concrete Saws • Hydraulic Saws
Diamond Blades • Abrasive Blades • Diamond Wire • Electroplated Blades
Quality Saws, Blades, and Services
1 866 987 7297
Visit our website at www.ussaws.com
3317 W. Warner Avenue 11 High Street 8004B E Broadway Ave
Santa Ana, CA 92704 Sufeld, CT 06078 Tampa, FL 33619
Local 714 434 7297 Local 860 668 2402 Local 813 621 8015
Fax [phone] Fax [phone] Fax [phone]
01312013
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
Air Saws • Gas Saws • Pipe Saws • Concrete Saws • Hydraulic Saws
Diamond Blades • Abrasive Blades • Diamond Wire • Electroplated Blades
Quality Saws, Blades, and Services
1 866 987 7297
Visit our website at www.ussaws.com
3317 W. Warner Avenue 11 High Street 8004B E Broadway Ave
Santa Ana, CA 92704 Sufeld, CT 06078 Tampa, FL 33619
Local 714 434 7297 Local 860 668 2402 Local 813 621 8015
Fax [phone] Fax [phone] Fax [phone]
01312013
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

9
Chain Tension
Air Powered Chain Saw
Air Saws • Gas Saws • Pipe Saws • Concrete Saws • Hydraulic Saws
Diamond Blades • Abrasive Blades • Diamond Wire • Electroplated Blades
Quality Saws, Blades, and Services
1 866 987 7297
Visit our website at www.ussaws.com
3317 W. Warner Avenue 11 High Street 8004B E Broadway Ave
Santa Ana, CA 92704 Sufeld, CT 06078 Tampa, FL 33619
Local 714 434 7297 Local 860 668 2402 Local 813 621 8015
Fax [phone] Fax [phone] Fax [phone]
01312013
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:
Air Saws • Gas Saws • Pipe Saws • Concrete Saws • Hydraulic Saws
Diamond Blades • Abrasive Blades • Diamond Wire • Electroplated Blades
Quality Saws, Blades, and Services
1 866 987 7297
Visit our website at www.ussaws.com
3317 W. Warner Avenue 11 High Street 8004B E Broadway Ave
Santa Ana, CA 92704 Sufeld, CT 06078 Tampa, FL 33619
Local 714 434 7297 Local 860 668 2402 Local 813 621 8015
Fax [phone] Fax [phone] Fax [phone]
01312013
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:
Concrete and ductile iron cutting chainsaws operate with looser chain tension than wood chainsaws.
It is common, especially on gas powered, concrete cutting chainsaws to have the drive links hang
completely 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 and ductile iron cutting chainsaws 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 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 Tips
1. To reduce chain stretch and tensioning downtime, a minimum water suply 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 yhe diamond segments to pull the chain.
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.

10
Pipe Clamp
Air Powered Chain Saw
Pipe Clamp Mounting Instructions
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.)
2. 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.
3. US Saws recommends a bottom up cutting process. This allows two safety
functions.
a) 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.
b) 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.
4. Mount the receiver at a 10 o’clock position. This will allow the saw to hang in a
near vertical orientation.
5. Slide mounting pin on the saw (see pin installation instructions) into receiver
and install retainer clip.
6. Clear the area of loose debris that could get caught in the chain.
7. 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.
8. In some cases stopping your cut just before completion and leaving a tab allows
greater stability while making cuts down-line. Finish nal cut freehand from the
top to complete removal of section.

Pipe Clamp
Reciever Pin Mounting Instructions
11
• Remove the rear bar stud nut.
• Install pin on rear bar stud.
• The inner thread of the pin will take the place of the nut.
• In certain applications (larger than 10” pipe) the mounting pin
may need to be relocated to the front bar stud for greater saw
clearance.
• Ensure the chain is adjusted according to the chain tensioning
guide.
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.
Air Powered Chain Saw

12
Operation
© 2010 ICS, Blount International Inc. Specications are subject to change without notice. REV0611 F/N 545067
TITLE695GC / 695F4 OPERATOR’S MANUAL
13
COLD ENGINE STARTING PROCEDURE
1. Pull the choke lever out, which also sets the throttle lock.
2. Depress primer bulb approximately 5-10 times.
3. Push in decompression valve.
4. Open the water valve 1/4 turn.
5. Place the saw on stable ground making sure the chain
is free of any obstructions.
6. Place foot on the base of the rear handle, and place one hand
on front handle.
7. With opposite hand, slowly pull starter handle until the
starter pawls engage.
8. Pull the starter cord (hard, fast, short pulls)
until engine initially fires or "pops".
Could be as many as 10-15 pulls.
9. Push the choke lever in.
10. Pull the starter cord until engine starts - should be 1 to 2 pulls.
11. Release the throttle lock by momentarily squeezing on the
throttle trigger.
12. When the engine starts, allow the engine to idle briefly.
Squeeze the throttle trigger several times to help
warm up the engine.
13. Open the water valve completely.
CAUTION
STARTING AND STOPPING A CONCRETE CHAIN SAW
Never start a concrete chain saw without the bar, chain and side
cover properly assembled. Failure to do so may result in serious
injury.
Always move a concrete chain saw at least 10 feet (3 m) away
from the fueling area before starting.
Place the saw on clear ground. Ensure that secure footing is
established and chain is not contacting any objects.
IMPORTANT
WARNING
WARM ENGINE STARTING PROCEDURE
1. Use the same procedure as starting a cold engine, but pull choke lever out, and then push back in to set
the throttle lock. If choke is used on a warm engine, the carburetor will flood with gas.
2. If the engine does not start in 3 hard, fast pulls with the throttle locked, fully squeeze and hold the trigger
while pulling the starter cord 3 more times.
Note: To hold the trigger fully open it may be necessary to insert right foot into rear handle opening
and twist.
STOPPING THE SAW
• To turn the engine off, push stop switch to the "STOP" position. Close water valve.
OPER ATION
Throttle Trigger
Trigger Interlock
Decompression Valve
Stop Switch
Primer Bulb
Choke
Lever
© 2010 ICS, Blount International Inc. Specications are subject to change without notice. REV0611 F/N 545067
TITLE 695GC / 695F4 OPERATOR’S MANUAL
14
PRE-CUT CHECKLIST
• Ensure proper chain tension: The chain should be easily pulled around the guidebar by hand.
• Ensure all safety devices are properly mounted and functional and that all controls are in proper
working order.
• Be sure there are no obstructions (plumbing, electrical conduit, air ducts) and no unnecessary
people present.
• Always wear protective clothing, including hard hat, eye protection, hearing protection, non-slip
safety boots, and gloves. Avoid wearing loose fitting clothing.
• Adequate Water Supply and Pressure:
Minimum Flow: 2 gpm (8 lpm)
Minimum Water Pressure: 20 psi (1.5 bar)
• Diamond chains with SealPro® require a minimum
water pressure of 20 psi (1.5 bar).
PLANNING THE CUT
• Select the proper chain type for the material being cut.
• Outline the cut with a permanent marker for a visual cutting guide.
• Avoid pinching the guidebar and chain. Always cut the bottom of an opening first, then top, and
then the sides. Save the easiest cut for last.
• For the straightest cuts 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 using the WallWalker®.
• Be sure cut concrete cannot fall and injure operator or bystanders. Concrete is very heavy,
one cubic foot = 12 in x 12 in x 12 in = 150 lbs (30 cm x 30 cm x 30 cm = 68 kg).
• Check for and remove any obstructions (plumbing, electrical conduit, air ducts, etc,) that may
interfere with the cut.
The single most important factor an operator can control to
increase chain life is to use adequate water pressure. Insufficient
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
guidebar nose sprocket.
IMPORTANT
OPER ATION
Never start a diamond chain saw without the bar, chain and side cover
properly assembled. Failure to do so may result in serious injury.
Always check hose connections before turning on air compressor.
Hold saw with both hands and ensure the chain is not contacting any
objects.
• Ensure Proper Chain Installation: Concrete chains should lead with the bumper segment into the cut.
Ductile chains can be mounted in either direction.
• Ensure Proper Chain Tension: The chain should be tight but easily pulled around the bar by hand.
• Ensure all safety devices are properly mounted and functional. Ensure all controls are in working order.
• Be sure there are no obstructions (plumbing, electrical conduit, air ducts, etc.) and no unnecessary
people present.
• Always wear protective clothing, including hard hat, eye protection, hearing protection, non-slip safety
boots, and gloves. Avoid wearing loose tting clothing.
• Use Adequate Water Supply and Pressure:
Minimum Flow: 1gpm
Recommended Water Pressure: 20psi
• Use Proper Air Supply:
Minimum PSI : 90
Minimum CFM: 90
• Blow the air supply line clear before connecting to the saw.
• Check oil level; if necessary, re-ll oiler with ice-free air tool oil.
• The chain should travel away from the operator on the top side of the bar during operation.
Pre-Cut Checklist
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 guidebar nose sprocket.
• Select the proper chain type for the material being cut.
• Outline the cut with a permanent marker for a visual cutting edge.
• 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.
• For the straightest cuts in concrete use the “Step Cut” method. First, score the entire cut line approxi-
mately 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.
• For the straightest cuts in pipe cutting applications cut from the bottom up using the Pipe Clamp.
• Be sure that cut material cannot fall and injure operator or bystanders.
• Check for live electrical wiring near the cut or in the concrete to avoid electrocution.
• Check for and remove all obstructions (plumbing, electrical conduit, air ducts, etc.) that may interfere
with the cut.
© 2010 ICS, Blount International Inc. Specications are subject to change without notice. REV0611 F/N 545067
TITLE695GC / 695F4 OPERATOR’S MANUAL
13
COLD ENGINE STARTING PROCEDURE
1. Pull the choke lever out, which also sets the throttle lock.
2. Depress primer bulb approximately 5-10 times.
3. Push in decompression valve.
4. Open the water valve 1/4 turn.
5. Place the saw on stable ground making sure the chain
is free of any obstructions.
6. Place foot on the base of the rear handle, and place one hand
on front handle.
7. With opposite hand, slowly pull starter handle until the
starter pawls engage.
8. Pull the starter cord (hard, fast, short pulls)
until engine initially fires or "pops".
Could be as many as 10-15 pulls.
9. Push the choke lever in.
10. Pull the starter cord until engine starts - should be 1 to 2 pulls.
11. Release the throttle lock by momentarily squeezing on the
throttle trigger.
12. When the engine starts, allow the engine to idle briefly.
Squeeze the throttle trigger several times to help
warm up the engine.
13. Open the water valve completely.
CAUTION
STARTING AND STOPPING A CONCRETE CHAIN SAW
Never start a concrete chain saw without the bar, chain and side
cover properly assembled. Failure to do so may result in serious
injury.
Always move a concrete chain saw at least 10 feet (3 m) away
from the fueling area before starting.
Place the saw on clear ground. Ensure that secure footing is
established and chain is not contacting any objects.
IMPORTANT
WARNING
WARM ENGINE STARTING PROCEDURE
1. Use the same procedure as starting a cold engine, but pull choke lever out, and then push back in to set
the throttle lock. If choke is used on a warm engine, the carburetor will flood with gas.
2. If the engine does not start in 3 hard, fast pulls with the throttle locked, fully squeeze and hold the trigger
while pulling the starter cord 3 more times.
Note: To hold the trigger fully open it may be necessary to insert right foot into rear handle opening
and twist.
STOPPING THE SAW
• To turn the engine off, push stop switch to the "STOP" position. Close water valve.
OPER ATION
Throttle Trigger
Trigger Interlock
Decompression Valve
Stop Switch
Primer Bulb
Choke
Lever
Planning The Cut
Air Powered Chain Saw

13
Operation
© 2010 ICS, Blount International Inc. Specications are subject to change without notice. REV0611 F/N 545067
TITLE695GC / 695F4 OPERATOR’S MANUAL
13
COLD ENGINE STARTING PROCEDURE
1. Pull the choke lever out, which also sets the throttle lock.
2. Depress primer bulb approximately 5-10 times.
3. Push in decompression valve.
4. Open the water valve 1/4 turn.
5. Place the saw on stable ground making sure the chain
is free of any obstructions.
6. Place foot on the base of the rear handle, and place one hand
on front handle.
7. With opposite hand, slowly pull starter handle until the
starter pawls engage.
8. Pull the starter cord (hard, fast, short pulls)
until engine initially fires or "pops".
Could be as many as 10-15 pulls.
9. Push the choke lever in.
10. Pull the starter cord until engine starts - should be 1 to 2 pulls.
11. Release the throttle lock by momentarily squeezing on the
throttle trigger.
12. When the engine starts, allow the engine to idle briefly.
Squeeze the throttle trigger several times to help
warm up the engine.
13. Open the water valve completely.
CAUTION
STARTING AND STOPPING A CONCRETE CHAIN SAW
Never start a concrete chain saw without the bar, chain and side
cover properly assembled. Failure to do so may result in serious
injury.
Always move a concrete chain saw at least 10 feet (3 m) away
from the fueling area before starting.
Place the saw on clear ground. Ensure that secure footing is
established and chain is not contacting any objects.
IMPORTANT
WARNING
WARM ENGINE STARTING PROCEDURE
1. Use the same procedure as starting a cold engine, but pull choke lever out, and then push back in to set
the throttle lock. If choke is used on a warm engine, the carburetor will flood with gas.
2. If the engine does not start in 3 hard, fast pulls with the throttle locked, fully squeeze and hold the trigger
while pulling the starter cord 3 more times.
Note: To hold the trigger fully open it may be necessary to insert right foot into rear handle opening
and twist.
STOPPING THE SAW
• To turn the engine off, push stop switch to the "STOP" position. Close water valve.
OPER ATION
Throttle Trigger
Trigger Interlock
Decompression Valve
Stop Switch
Primer Bulb
Choke
Lever
Before cutting, make sure the pipe is in a safe condition 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 resulting in death or
serious injury.
Air Powered Chain Saw
Making The Cut
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 allocation 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 production. 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.
When using the saw in a hand held fashion a slow rocking motion 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.
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.
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 immediately in front of or
behind the material being cut.

Troubleshooting
• 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 minnimum requirements;
ideal performance can be achieved at higher volume.
• 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.
• 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.
• CHAIN TENSIONER BREAKAGE - Side cover nuts are not tight enough.
• WATER NOT FLOWING - Water hose is kinked, blockage in guide bar water ports, or
water supply is not turned on.
• MOTOR DOES NOT START -
• Insufcient air supply. Check compressor and air hose, valves, and air inlet
screen for blockage.
• Chain tension is too tight. Loosen chain tension.
• Iced exhaust. Wait until ice thaws, then lubricate with ice-free air tool oil.
• Vanes sticky. Apply lubricant directly to saw air inlet and blow motor clear. Repeat
if necessary.
See Maintenance Instructions.
14
Air Powered Chain Saw

Maintenance
Air Motor 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.
Service life and performance of the chain saw are determined by:
1. Degree of air purity
2. Lubrication
3. Maintenance
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.
15
Air Powered Chain Saw

Parts
Air Powered Chain Saw
16
Ref. Number Part Number Description Note
1US60510C Hand Guard
2US60466-3 Handle
3US60466-5 Handle Spacer
4US60134 Trigger Guard
5 US60466-1 Chain Chassis
6 US60466-2 Chain Cover
7US60523 Flap
Not Shown
8US60466-8 Adjustment Pin
9US60466-12 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

41
Ref. Number Part Number Description Note
1 02-70018 Governor End Bolt
2 02-70017 Bearing Sleeve
3 02-70070 Bearing
402-65013 Gasket
5 02-54069 Large Bearing End Plate
602-40044A 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 Shaft (Rotor)
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
17
Parts
Air Powered Chain Saw
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

18
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 02-66147 Gearbox Output Shaft
41 02-66146(A) Inner Flange
42 US60466-9 Sprocket Spacer
43 US254955 Drive Sprocket
44 02-66145(A) Outer Flange
45 US60466-10 Disk Spring 2 Required
46 02-66148 Flange Bolt
47 02-66015 Motor Housing
48 05-96551 Hi-CAp Lockwasher #10 4 Required
49 05-96550 #10 - 24 x 5/8 4 Required
Parts
Effective: April 1, 2013
Air Powered Chain Saw