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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
WS3664
Once the engine is warm and running by itself with the choke
OPEN you can begin screeding concrete.
For specific instructions on Wet Screeding and Form to Form
screeding please see pages 12 and 13.
1. Begin by placing concrete within your forms slightly higher
than the forms themselves.
2. Place screed on top of concrete and start engine.
3. Increase engine RPM until the clutch engages causing the
screed to vibrate.
4. Walking backwards, begin screeding concrete.
5. Your throttle lever does not require constant contact, but
you can adjust RPM and vibration to accommodate wet or
dry concrete. Dry or low slump concrete may require
more vibration to level and screed.
6. Continue moving backwards while keeping concrete placed
in front of the blade. The roll back feature of the blade will
help keep concrete from sliding over the blade.
Concrete placed too high may slide over the board! This
could make the screed too hard to pull and result in a slab
that is out of level.
OPERATING ON WET CONCRETE
DO NOT OVER VIBRATE CONCRETE
The following are signs of too much vibration:
!
!
•
Excessive concrete splatter
•
Blade sinking below wet pads
•
Ripple or “wake marks” following the blade
•
Concrete easily sliding underneath form boards causing dips along the form edge
Always remember,
the less vibration the better
. Use only enough vibration to be able to
comfortably pull screed backwards, leaving a smooth, level surface.
