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633GC OPERATOR’S MANUAL
15
P/N 70944 Jan 07 © 2007 ICS, Blount Inc.
CUTTING WITH THE 633GC
To start a cut, hold trigger on full throttle and slowly plunge the nose of the bar straight into the wall.
Lengthen the cut and engage the point of the fixed Wallwalker
®
. Use the fixed Wallwalker
®
as a pivot
point and pull up on the rear handle to rotate the bar into the cut.
CUTTING TIPS
• Always operate the diamond chainsaw 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 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 fixed 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 fixed Wallwalker
®
to help cut more efficiently
and reduce operator fatigue. The fixed 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 point of the fixed 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 pick into the cut and repeat.
• When cutting heavy 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 chain life when cutting
heavy rebar.
• Expect more chain stretch when making nose buried cuts for extended periods of time, as the
chain does not have a chance to “throw” the slurry away from the nose of the bar.
• If the saw begins to cut consistently crooked, turn the 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. Heavy
rebar can shorten guide bar life.
• When using a new 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.
WallWalker
®
point
OPERATION