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104 S. 8th Ave. Marshalltown, IA Phone 800-888-0127 / 641-753-0127 • Fax 800-477-6341 / 641-753-6341 www.MARSHALLTOWN.com
WS2305
PRODUCT OPERATION
STRAIGHT PULL METHOD - WET CONCRETE OPERATING METHOD ONE
Slump levels of 5 or more, maintain 1 to 2 inch surcharge
When working with wet concrete, start the Spin Screed® by pulling the green trigger and slowly pull it over the concrete
while muckers maintain about a 2-inch surcharge of concrete in front of the screed. After advancing 6 to 8 feet, allow the
spinning Spin Screed® to move slowly backward over the freshly screeded concrete. This slow backwards pass pushes
aggregate left on the surface down while bringing paste to the surface. After backing over the poured section, turn off
the Spin Screed® and pull the screed back to the area where more concrete has been placed. Begin screeding again. With
concrete wetter than a 5-inch slump, pulling over the concrete surface a second time with the motor running will produce
a flatter surface with sufficient paste for floating. Examine the surfaces prepared by the Spin Screed® and adjust your
technique to product the desired surface for floating.
BUMP AND RUN METHOD - STIFF CONCRETE OPERATING METHOD TWO
Slump levels of 3 to 4 inches, maintain 2.5 to 3.5 inch surcharge
With stiff concrete, pulling the Spin Screed® over the concrete produces a rough surface that is difficult to float. To get
the best results, use the “bump and run” technique. Start by pulling the green trigger to start the Spin Screed® and gently
bumping a 2-3-inch surcharge with the Spin Screed®, causing it to advance a few inches, and then allow it to retreat 4 to 6
inches. Advance the Spin Screed® again. Continue the “bump and run” technique until you have advanced 6 to 8 feet, then
allow the Spin Screed® to move backward slowly over the freshly screeded concrete with the Spin Screed® still running.
This slow backwards pass pushes aggregate left on the surface down while bringing paste to the surface. After backing
over the poured section, turn off the Spin Screed® and pull the screed back to the area where more concrete has been
placed. Begin screeding again. The screeded section is ready for floating and should be done immediately. When screeding
stiffer concrete, pulling the Spin Screed® forward a second time tends to remove the layer of paste that has been worked
to the surface and makes the surface more difficult to float and finish.
IMPORTANT
Ensure the Spin Screed® is cleaned immediately after use to prevent concrete from curing in the motor drive shaft, motor
enclosure, handle joints, or on the Pipe.
Cleaning the motor enclosure should be done by blowing compressed air and washing by hand—avoid getting water
directly into the motor assembly. Pressure washers are recommended for cleaning the Pipe but should NOT be used to
clean the motor enclosure.
Spin Screed Techniques of Operation:
The Spin Screed power head has been designed with a reversing switch. The power head can be made to operate on
either side of the pour moving in either direction.
As with any electric tool, proper operating voltage is essential. Always use heavy-duty properly grounded extension
cords and follow the directions associated with the spin motor for maximum length and gauge of extension cords.
The spin motor draws 10 amperes of current at 120 volts when fully loaded. A portable electric generator can easily
provide this voltage and current requirement if a source of 120 volt AC is not otherwise available. GFI breakers are an
OSHA requirement for tools used on the construction site. All extension cords and power cords should be inspected
and tested for defects before being placed into operations. Defective cords not protected by GFI breakers could lead
to death or severe injury.
The Spin Screed will handle stiff concrete having only a 3-inch slump or any larger slump that you choose to pour. We
advise that when you first start using the Spin Screed, you pour with a slump level that is consistent with your past
practices. As with any new tool you bring onto your job site, certain techniques of operation must be learned so the
quality level of work you demand can be achieved.
With wet concrete, you will probably find that the spin motor can be energized and the Spin Screed slowly pulled over
the concrete while muckers are maintaining about a two-inch surcharge of concrete in front of the screed. Once you
have advanced for 6 to 8 feet or more, you will want to allow the Spin Screed to move backward slowly over the freshly
screeded concrete while the Spin Screed is still spinning. This slow backward pass pushes any concrete aggregate
that may be above the surface down into the surface while at the same time bringing paste to the surface. Once you
have backed over the section just poured, you will want to turn off the spin motor and simply pull the screed back to
the area where more concrete has been placed and begin the screeding operation again. With concrete wetter than a
5 inch slump, you may find that pulling over the concrete surface a second time, while the spin motor is still running,
will produce a flatter surface with sufficient paste for bull floating. The general rule is to examine the surface prepared
by the Spin Screed and adjust your screeding technique to produce the most desirable surface for bull floating.
1-888-329-6039 • www.spinscreed.com
Wet Concrete
Operating Method No. 1:
Slump levels of 5 inches
or more. Maintain 1 to 2
inch surcharge.
Stiff Concrete
Operating Method
No. 2:
Slump levels of 3 to
4 inches. Maintain
2.5 inch to 3.5 inch
surcharge.
STRAIGHT PULL
BUMP AND RUN
(OVER)
Spin Screed Techniques of Operation:
The Spin Screed power head has been designed with a reversing switch. The power head can be made to operate on
either side of the pour moving in either direction.
As with any electric tool, proper operating voltage is essential. Always use heavy-duty properly grounded extension
cords and follow the directions associated with the spin motor for maximum length and gauge of extension cords.
The spin motor draws 10 amperes of current at 120 volts when fully loaded. A portable electric generator can easily
provide this voltage and current requirement if a source of 120 volt AC is not otherwise available. GFI breakers are an
OSHA requirement for tools used on the construction site. All extension cords and power cords should be inspected
and tested for defects before being placed into operations. Defective cords not protected by GFI breakers could lead
to death or severe injury.
The Spin Screed will handle stiff concrete having only a 3-inch slump or any larger slump that you choose to pour. We
advise that when you first start using the Spin Screed, you pour with a slump level that is consistent with your past
practices. As with any new tool you bring onto your job site, certain techniques of operation must be learned so the
quality level of work you demand can be achieved.
With wet concrete, you will probably find that the spin motor can be energized and the Spin Screed slowly pulled over
the concrete while muckers are maintaining about a two-inch surcharge of concrete in front of the screed. Once you
have advanced for 6 to 8 feet or more, you will want to allow the Spin Screed to move backward slowly over the freshly
screeded concrete while the Spin Screed is still spinning. This slow backward pass pushes any concrete aggregate
that may be above the surface down into the surface while at the same time bringing paste to the surface. Once you
have backed over the section just poured, you will want to turn off the spin motor and simply pull the screed back to
the area where more concrete has been placed and begin the screeding operation again. With concrete wetter than a
5 inch slump, you may find that pulling over the concrete surface a second time, while the spin motor is still running,
will produce a flatter surface with sufficient paste for bull floating. The general rule is to examine the surface prepared
by the Spin Screed and adjust your screeding technique to produce the most desirable surface for bull floating.
1-888-329-6039 • www.spinscreed.com
Wet Concrete
Operating Method No. 1:
Slump levels of 5 inches
or more. Maintain 1 to 2
inch surcharge.
Stiff Concrete
Operating Method
No. 2:
Slump levels of 3 to
4 inches. Maintain
2.5 inch to 3.5 inch
surcharge.
STRAIGHT PULL
BUMP AND RUN
(OVER)