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603GC OPERATOR’S MANUAL

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                                                                                        © 2006 ICS, Blount Inc.                                                                                                          P/N 518538 Jul 06

OPERATION

CUTTING TIPS 

•  To start a cut, hold trigger on full throttle and slowly plunge the nose of the guide bar straight into 

the wall. Use the fixed Wallwalker

®

 as a pivot point and pull up on the rear handle to rotate the 

guide bar into the cut. 

•  Always operate the saw at full throttle. Apply enough feed force so that the free running RPM 

drops 20 to 30%. If too much force is applied, the saw will lug or stall. The diamond chain will not 
have enough speed to cut effectively. If too little feed force is applied, the diamonds will skid and 
glaze over. 

•  For straighter cuts use the “step cut” method. First score the entire cut line with the nose of the 

guide bar approximately 1/2 inch (12mm) to 1 inch (25mm) deep. Next, deepen the cut by about 
2 inches (50 mm). This groove will help guide the guide bar for a straight cut. Then plunge all the 
way through and complete the cut using the Wallwalker

®

•  Plunge cut instead of starting at the top of the wall. This will reduce chatter, extend diamond life, 

create a straighter cut and more quickly enable the use of the Wallwalker

®

•  Use the Wallwalker

®

 to help cut more efficiently and reduce operator fatigue. The Wallwalker

®

 is a 

fulcrum that can be used to apply additional force when cutting. To use correctly, plunge into the 
wall and simply engage the bumper of the Wallwalker

®

 into the cut and pry upward with the rear 

handle. 

•  As the saw begins to rotate up, feed force is developed down the line of the intended cut. Once 

the saw is fully rotated upwards, pull the saw out of the cut a few inches and re-engage the 
Wallwalker

®

 to the wall and repeat. 

•  When cutting rebar, slowly ”rock” the saw so that you’re always cutting concrete as well as steel. 

This will help keep the diamonds exposed. Also, expect less diamond chain life when cutting 
rebar. 

•  Expect more diamond chain stretch and guide bar wear when making “nose buried” cuts for 

extended periods of time, as the diamond chain does not have a chance to “throw” the slurry 
away from the nose of the guide bar. 

•  If the saw begins to cut consistently crooked, turn the guide bar over and use the other side. 

Dress worn rails with belt sander. Note: The normal life of a guide bar is 2 to 3 diamond chains. 
Rebar can shorten guide bar life. 

•  When using a new diamond chain, you can increase the cutting speed by “opening up the 

diamonds”. Make a few cuts in an abrasive material such as a cinder block. 

Summary of Contents for 603GC

Page 1: ...2006 ICS Blount Inc P N 518538 Jul 06 603GC UTILITY GAS SAW OPERATOR S MANUAL...

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Page 3: ...E 603GC OPERATOR S MANUAL P N 518538 Jul 06 2006 ICS Blount Inc TABLE OF CONTENTS SYMBOLS LABELS 4 SAFETY 5 TECHNICAL SPECIFICATIONS 8 SET UP 9 OPERATION 11 MAINTENANCE 16 TROUBLESHOOTING 23 REFERENCE...

Page 4: ...njury 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...

Page 5: ...injury DO NOT operate the saw 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 movin...

Page 6: ...ufficient water supply may result in excessive wear to the diamond chain which can lead to loss of strength and diamond chain breakage Never start the saw unless the guide bar diamond chain and side c...

Page 7: ...asoline with a minimum octane rating of 90 If lower octane gasoline is used engine temperature will increase which will result in a piston seizure Fuel mixture 25 1 gasoline oil mixture Incorrect fuel...

Page 8: ...es 22 9cm Dimensions 17 inches 44cm length 10 inches 25 5cm height 11 6 inches 29 5cm width Air Filter Dry nylon Carburetor Walbro HAD146 throttle shaft sealed pressure compensating Starter Standard R...

Page 9: ...INSTALLATION STEP 4 Mount the diamond chain on the guide bar starting at the drive sprocket continue over the guide bar nose STEP 2 Remove Shipping spacer STEP 5 Install the side cover STEP 3 Place g...

Page 10: ...scrench should fit between the guide bar and the chain drive links STEP 10 Continue to lift up on the nose of the guide bar and firmly tighten the side cover nuts See Note 2 Chain Tension Note 1 Do no...

Page 11: ...tightly to prevent moisture from getting into the fuel Always begin mixing fuel by adding half the amount of gasoline to be used Then add the correct amount of two stroke oil for 25 1 mixture and fin...

Page 12: ...engine starts should be 1 to 2 pulls 14 When the engine starts allow the engine to idle Pull on the throttle trigger several times to help warm up the engine 15 Open the water valve completely CAUTION...

Page 13: ...ing PLANNING THE CUT Outline the cut with a permanent marker for a visual cutting guide Avoid pinching the guide bar and diamond chain Always cut the bottom of an opening first then top and then the s...

Page 14: ...e Wallwalker Use the Wallwalker to help cut more efficiently and reduce operator fatigue The Wallwalker is a fulcrum that can be used to apply additional force when cutting To use correctly plunge int...

Page 15: ...ng any water in the carburetor or exhaust system If water enters exhaust port point the guide bar tip down and pull the starter handle several times to expel water from muffler Remove guide bar and di...

Page 16: ...pect the starter cord Replace if frayed 6 Inspect the air filter for holes and debris Replace as necessary 7 Spray saw guide bar and chain with lightweight oil 8 Grease the chain tensioner AFTER 10 HO...

Page 17: ...Figure 2 Lubricate the starter pawls by spraying light weight oil into the starter housing through the vents Figure 2 Check the starter cord for fraying replace if necessary STARTER CORD REPLACEMENT...

Page 18: ...arter handle should be pulled back in the starter housing under it s own tension To check that the starter pulley was assembled correctly pull the cord completely out of the housing grip the pulley an...

Page 19: ...nd apply a liberal amount of grease IMPORTANT Most Common Causes of Tensioner Damage Side cover nuts are not tight enough Side cover nuts should be torqued to 20 ft lbs 27Nm Chain tensioning is attemp...

Page 20: ...sprockets have been used Inspect the rim sprocket for wear Replace the rim sprocket if the drive teeth become pointed Check the drive sprocket bearing by spinning clutch cup Replace the bearing if it...

Page 21: ...clean it with a wire brush and check the electrode gap Readjust if necessary The correct gap is 020 0 50mm The spark plug should be replaced after 40 hours of operation or earlier if the electrode is...

Page 22: ...roove replace the guide bar Check the guide bar for straightness Minor adjustments can be made by bending the guide bar slightly Proper diamond chain tension will extend guide bar life See page 9 10 U...

Page 23: ...TENSIONER BREAKAGE Side cover nuts are not tight enough Torque to 20 ft lbs 27Nm WATER NOT FLOWING Water hose is kinked or supply is not turned on WON T START Turn ignition switch on or possible defe...

Page 24: ...sonry Soft aggregates 30 50 sq in min 190 320 sq cm min INCH FOOT DEFINITION An in ft is a measure of how much material is to be cut An in ft is defined as depth in inches times length in feet Note 12...

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Page 26: ...4909 SE International Way Portland OR 97222 Tel 800 321 1240 Fax 503 653 4393 www icsbestway com 603GC OPERATOR S MANUAL 2006 ICS Blount Inc P N 518538 Jul 06...

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