Strong Floor-Mate 80E Owner's Manual page 12

After all the aggregate has been added, allow the mixer to mix for 1 to 3 minutes depending on
the type of product. After thoroughly mixing, open the mixer door allowing the material to flow
into the pump hopper. Close the mixer door. Start the pump. Watch for material hose plugging
on the first batch. An indication of a plug would be a rise in pump pressure if equipped with an
inline material pressure gauge or the stiffening of the material hose. After material begins to exit
the end of the hose, another batch of material can be prepared.
In the event the material will not pump through the hose, reverse the pump. This is done by
stopping the pump (push the red STOP button), turning direction switch to REVERSE, slow
pump to LOW, and press the START button. Continue running the pump in reverse until the
optional material pressure read 0 PSI and the hose becomes soft or easy to compress when
stepped on or squeezed by hand. Disconnect the hose from the pump. Locate the blockage and
remove the blockage by flushing the hose with water. Reconnect the hose to the pump and try
again.
If the line is properly primed before a material with heavy aggregate is introduced into the hose
the likelihood of a plug at start up is greatly reduced.
The speed of the material pump should be adjusted to match the speed of the mixer. At no time
should the pump be allowed to run dry (without material in the pump hopper). If allowed to run
dry, severe damage will occur to the material pump.
After completion of the job or day, water should be added to the mixer while the last batch is
being pumped. When the material holding hopper is almost empty, open the mixer door and
allow the water to flow into the pump hopper. Signal the man at the end of the hose that water is
coming. The hose man can signal the pump operator when the water arrives. The operator
should immediately reverse the pump to prevent additional water from being discharged in a
undesirable area. Having a container to catch the water would be advisable.
Move the hose to an area where it can be flushed out. With a wash down hose and nozzle, clean
the inside of the mixer. Do not remove the mixer grate or stick anything through the mixer grate
without disconnecting the power supply. After the mixer is clean, close the door and fill with
water. Open the clean-out door or plug on the pump hopper and wash out all remaining material.
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