SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #2 (05/28/09) — PAGE 15
ASSEMBLY INSTRUCTIONS/OPERATIONS
FIGURE 7FIGURE 8
Suggested Applications:
1) Medium duty asphalt and concrete scarifying.
2) Descaling steel decks.
3) Removing thick material build-ups of greases, paints,
oils, vegetable powders and some resins from floors.
4) Dried, fully cured, carpet and tile adhesive removal.
Suggested Applications:
1) Removal of thin coatings and encrusted accumulations.
2) Cleaning concrete and asphaltic surfaces
3) Removing thick material build-ups of greases, paints,
oils, vegetable powders and some resins from floors.
4) Light scarifying prior to the application of coatings,
toppings or sealers.
COST 1
PRODUCTIVITY 3
SERVICE LIFE 1
The star flail should be replaced when the outside diameter
is worn to approximately 1-5/16 inch or the inside diameter
elongates to approximately 3/4 inch.
Beam Flail
The beam type flail is manufactured from high carbon steel
that is through hardened for additional service life. It is highly
effective for scabbling or scarifying and delivers medium to
coarse surface finish texture. FIGURE 8.
FIGURE 9
COST 1
PRODUCTIVITY 5
SERVICE LIFE 2
The beam flail should be replaced when the outside diameter
is worn to approximately 1-5/16 inch or the inside diameter
elongates to approximately 3/4 inch.
Pentagonal Flail
The pentagonal type flail is manufactured from high carbon
steel that is through hardened for additional service life.
Each section of the five sided design features a small,
tungsten carbide insert that is held in position with copper
brazing. It is highly effective for scabbling or scarifying and
delivers medium to coarse finish texture. FIGURE 9.
Suggested Applications:
1) Heavy duty asphalt and concrete scarifying.
2) Heavy duty descaling of steel decks.
The pentagonal flail is designed for more aggressive and
rapid removal of a surface in comparison to the beam flail.
The addition of the tungsten carbide inserts contributes to
its long service life and higher production rates. The use of
tungsten carbide is also the main reason for the cost
differential between it and the other flails. The design
configuration yields a rather coarse surface finish and
texture. For many job applications, this finish and texture
will be satisfactory. Some applications may require an
additional smoothing process. If the resulting surface finish
is too coarse to meet specifications, it can be smoothed
with the use of the star or beam flail.
COST 10
PRODUCTIVITY 8
SERVICE LIFE 10
The pentagonal flail should be replaced when two successive
tungsten carbide inserts break off or the inside diameter
elongates to approximately 3/4 inch. In service, the flail
body will wear much faster than the tungsten carbide inserts.
The copper brazing used to weld the inserts into the body
can fail and an insert break off. The flail can still be used in
service. It will just wear a little faster and more uneven in