Manual

E-CPL8-CPM-4-8-10-I-0112
Printed in USA
TVW ©2012
Page 9
100 Thomas Johnson Drive, Frederick, MD 21702-4600 USA
Phone [phone] • 1-800-638-3326
Fax [phone] • 1-800-447-3326
Website: www.edcoinc.com
Email: [e-mail]
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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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 the time or if they have been treat-
ed 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:Speci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.