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www.ussaws.com | 1-877-987-7297

3702West Central 

Avenue

Santa Ana, CA 92704

8004B East Broadway 

Avenue

Tampa, FL 33619

U.S.SAWS 

Air Powered Chain Saw 

Operating Manual

Summary of Contents for ACH GB Series

Page 1: ...www ussaws com 1 877 987 7297 3702West Central Avenue Santa Ana CA 92704 8004B East Broadway Avenue Tampa FL 33619 U S SAWS Air Powered Chain Saw Operating Manual ...

Page 2: ...ional tool and is intended for use by trained and experienced operators To get maximum benefit 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 Specifications Model Number ACH GB16 ACH GB20 Part Number US60466 US60502 Power Source Gearbox Gearbox Air Requirements 90 psi 90 cfm 90 psi 90...

Page 3: ...nor or moderate injury or property damage A potentially hazardous 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 TOOL Read the operator s manual carefully and understand the contents before you use this equipment Always wear a protective helmet WARNING CAUTION IMPORTANT Always wear protective glasses...

Page 4: ... segments Ra 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 in...

Page 5: ...structions 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 THE FOLLOWING SYMBOLS AND DEFINITIONS AR...

Page 6: ...y hazardous situation may result in minor or moderate A potential situation exists whic product or property damage IMPORTANT WARNING CAUTION 6 THE FOLLOWING SYMBOLS AND 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 potent...

Page 7: ...than into the cut In extreme over tight ened cases the saw may not be able to turn the chain at all In addition damage 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...

Page 8: ...pulled freely around the guide bar by hand easily without binding ROPER CHAIN TENSION the chain is too loose it could come off the bar or it will allow the drive procket to spin without turning the chain which can chew up the chain drive nks If the chain is too tight a lot of the saw s power goes into turning the hain rather than into the cut In extreme over tightened cases the saw may not e able ...

Page 9: ...ete 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 ...

Page 10: ...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...

Page 11: ... 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 ...

Page 12: ...ssor 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 con...

Page 13: ...ake sure the pipe is in a safe condition to be cut Sup port 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 finished 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 m...

Page 14: ...CH 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 Insufficient air supply Check compressor and air hose valves and ai...

Page 15: ... 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 fittings on saw and compressor 5 When finished cleaning saw spray entire saw chain bar and drive sprocket with a light weight penetrating oil ie WD40 This will minimize rust and re du...

Page 16: ...5 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 ...

Page 17: ... 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...

Page 18: ... 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...

Page 19: ...HANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE Liability Limitations The remedies of the user set forth under provisions of warranty outlined above are the exclusive and total liability of US Saws with respect to their sale or the equipment and service furnished hereunder in connection with the performance or breach thereof or from the sale delivery installation repair or technical direction c...

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