Substrate Removal - Smith SPS8 User Manual & Parts List

SPS8
Adjust the height of the cutter drum with the Hand Wheel and Cam Lever. (Turn the hand wheel to
raise the cutter drum off of the substrate. Lower or raise the cam lever to engage or disengage the
drum after setting the proper cutter depth.)
Set the deoth of cut to allow the cutters to go through only the materials to be removed. Make certain
that the drum is positioned to where only the cutters strike the surface, and that the drum assembly
never comes into contact with the substrate. The cutter tips alone should strike the surface (1/8"
to 1/4" maximum depth per removal pass on new cutters).
The drum will not withstand substrate contact. Contacting the removal surface too deeply will
cause premature wear to cutters, shafts, drum and other components!
Too much downward pressure only has negative results. Try to remove materials in several passes
rather than one, deep pass. Several tests will show the best, most appropriate cutter impact. Use a
forward, backward and/or circular pattern to achieve your desired finish.
NOTE: Only use a forward motion when using the CM2150™ or CM2535™ carbide milling cutters.
TIP: Positioning the machine over the surface in many direrctions,
as well as dialing the hand wheel up or down can help create
desirable surface patterns. After several hours of practice, the
operator will become comfortable and should be able to remove
materials faster with enhanced results.
When the job is completed, or the operator wants to cease work, stop the engine by first lifting the
drum above the substrate using the hand-wheel and/or the cam lever. Stop the machine only at the
engine. Then close the fuel cock to shut off the fuel supply.
The drum assembly must be removed daily and inspected for drum wear, hole elongation and pos-
sible weld separation. Replace the cutter shafts and drum bushings every 40 hours, or prior to any
drum wear (65050 Drum only). If the drum's center holes are elongated, replace only with a SMITH
cutter drum.
10

SUBSTRATE REMOVAL

Refer to pg. 10 for troubleshooting problems.
SMITH Manufacturing 1-800-653-9311 www.SmithMfg.com 1/2009