Printed in USA
TVW
©2009
Page 9
E-CPM-4-8-10-SL8-I-0309
100 Thomas Johnson Drive, Frederick, MD 21702-4600 USA
Phone (301) 663-1600 • 1-800-638-3326
Fax (301) 663-1607 • 1-800-447-3326
Website: www.edcoinc.com
Email: [email protected]
Cutting Heads / Drums:
•
Drum assembly revolves at approximately 1200-1800 R. P. M.; Model CPM-10 is a “down-cut” planer, Model
CPM-8 is a “down-cut” planer, and ScariLite-8 is a down-cut planer, Model CPM-4 is an “up-cut” planer. Depth
of cut is completely determined by the material to be cut, horsepower of the engine/motor and spacing of the
cutter wheels on the cutter head.
•
All cuts should be started from a stationary position - when the cutting depth is reached the planer should then
move forward.
•
The engine/motor should not labor. Run at full speed and adjust forward speed to fi t the work being performed.
Very hard concrete will have to be cut at a slower pace than asphalt or deteriorated surfaces.
•
If it is necessary to make deep cuts - make several shallow cuts to achieve the desired depth. If the cutting depth
is set too deep the cutter wheels will not be able to absorb the shock and damage to the equipment will result.
•
The cutter wheels have an oversized arbor hole. This “play” is needed to absorb some of the shock of the cutter
contacting the concrete.
•
Cutting speed is directly proportional to the amount of material to be removed in one pass; an example - cutters
spaced on 1” centers will penetrate to a greater depth than those spaced at 1/2” centers, and the planer will
move forward faster. Most of the material in the path of the cutting head will be removed either by the cutters
them selves or through the natural hammering action and spalling of the material being cut. A later pass with
cutters spaced closer together will remove the ridges.
To Reach Maximum Depth in Concrete:
•
It is best to make several passes - increments of 1/32-1/8” or even less if surface is extremely hard.
•
Use coarse (wide spacing) for initial passes. Complete job with medium spacing. Never use a fi ne spaced cutter
head to cut deeper than 1/32-1/8”.
•
Some concrete slabs, especially if they are covered with water a good deal of time or if they have been treated
with hardeners, develop an extremely high surface strength.
•
Material removal depth should not exceed 1/32-1/8” per pass thus requiring several passes to reach the desired
depth of cut.
To Cut Asphalt:
•
This surface can be easier to penetrate than concrete. In some instances depths of 1/4” per pass can be
achieved with the larger machines. In general though, 1/8” per pass is still standard and should be maintained
until the hardness of the asphalt is determined.
Note: Specifi c information on asphalt cutting is available upon request.
Fine Cutting:
•
This assembly should be used for very shallow or cleaning operations. Check with dealer for special cutter
wheels for removal of paint build-up or similar surface coatings.
