Multiquip 8FP Series - page 18

ASSEMBLY INSTRUCTIONS/OPERATIONS
8FP FLOOR PLANER SERIES OPERATION AND PARTS MANUAL REV #2 (05/28/09) PAGE 18
Suggested Applications:
1) Removing synthetic coatings, thermoplastic and
cold plastic marking and lines from concrete and
asphaltic surfaces.
COST 10
PRODUCTIVITY 7
SERVICE LIFE 7. Milling flails are designed to remove
a variety of traffic line materials from concrete and
asphaltic type surfaces. With proper techniques,
minimal amounts of parent work surface material will
also be removed during the planing process. Milling
flails are expensive. To realize maximum service life,
milling flails should not be utilized for the direct
removal of concrete and asphaltic work surface
materials. Such use will drastically reduce their
service life and substantially increase project costs.
SPACER WASHERS.
Spacer washers are stamped from high carbon, alloy
steel that is heat treated for additional service life.
FIGURE 6.
FIGURE 6
The Function of Spacer Washers
1) Reduce the number of flails required to be mounted
on the flail drum, thus reducing purchase and
operational costs.
2) Arrange the flails in a sequence or pattern that
minimizes "blind" or "open" spots created by the
additional support plates of the two section flail drum.
Always insert at least one spacer washer between two
(2) consecutive flails. The exception to this rule is a
configuration where its design does not require the
use of spacer washers. A flail drum set up with only
star, beam or pentagonal flails and no spacer washers
will not penetrate the work surface at satisfactory
rates. Typical configurations minimize the hammering
or impact action of the flails. However, this can also be
useful when removing traffic lines.
3) Allow the flails to be arranged on the one section
flail drum in configurations of specific widths for many
job applications. An example would be the use of
pentagonal flails to groove a concrete floor. The
spacer washers are used to position the pentagonal
flails at the desired width. FIGURE 7.
Variances in material thickness and manufacturing
processes can affect the final thickness of both flails
and spacer washers. Because of this occurrence, trial
and error is important for assembling flails and spacer
washers on a flail drum. By mixing and matching flails
and spacer washers of specific thicknesses, the
required number of components can be assembled on
a flail drum in a minimum amount of time.
DANGER
USE ONLY FACTORY SUPPLIED SPACER
WASHERS ON THE FLAIL DRUM. OTHER
WASHER TYPES AND/OR CONFIGURATIONS CAN
PRODUCE ABNORMAL WEAR AND ELONGATION,
RESULTING IN COMPLETE SEPARATION FROM
THE FLAIL DRUM. SPACER WASHER
SEPARATION CAN RESULT IN PROPERTY LOSS
AND/OR PERSONAL INJURY.
FIGURE 7
FLAIL DRUM RODS
Flail drum rods are manufactured from 1/2 inch
diameter alloy steel. They are heat treated in a two
step process that yields a surface hardness that
resists wear and extends service life.
Drum rod service life is difficult to predict because of
the large number of flail configurations and work
surface materials. Normal wear should be uniform
about the rod circumference. FIGURE 8.